A new energy vehicle gear press-fitting and welding device

Abstract

The application discloses a new energy automobile gear press-fitting welding device, and relates to the technical field of gear press-fitting welding. The new energy automobile gear press-fitting welding device comprises a base, and supporting legs are detachably installed at the bottom of the base. The new energy automobile gear press-fitting welding device controls the elongation of the air cylinder, and the air cylinder moves the press-fitting plate downwards, the press-fitting plate drives the triangular plate to move downwards, the inclined surface of the triangular plate extrudes the L-shaped rod, the L-shaped rod is forced to move towards the gear seat, when the two side abutting plates abut against the shaft body to be press-fitted, the abutting plates remain stationary, the L-shaped rod continues to move towards the abutting plate along with the descent of the triangular plate, the compression of the compression spring is accompanied, the compression of the compression spring is continuously carried out, the clamping force of the two side abutting plates on the shaft body to be press-fitted is continuously increased, the shaft body to be press-fitted can be stably positioned at the center of the gear, the stability of press-fitting is ensured, and the problem that the shaft body may be deviated when the shaft body is placed at the center of the gear and then press-fitting is started is solved.

Description

Technical Field

[0001] This invention relates to the field of gear press-fitting and welding technology, specifically to a gear press-fitting and welding device for new energy vehicles. Background Technology

[0002] The drive system of new energy vehicles is the core component of the vehicle's power output. Precision gear components such as drive gears and reducer gears directly affect power transmission efficiency, transmission smoothness, and the service life of the entire vehicle. The quality of gear assembly directly determines the reducer's operating noise, transmission accuracy, and durability. During the production process, gears need to be precisely press-fitted and positioned first, and then welded to achieve rigid fixation between the gear and the shaft. This ensures connection strength, coaxiality, and torque load-bearing capacity, preventing gear loosening, slippage, breakage, and other malfunctions during high-speed driving and frequent start-stop operations.

[0003] Existing gear press-fitting and welding devices for new energy vehicles involve placing the gear into a limiting base, then placing the shaft in the center of the gear, and finally controlling the cylinder to press-fit it. However, during this process, the shaft is not supported, and it is easy for the shaft to wobble due to equipment vibration during the press-fitting process, causing the shaft to shift position on the gear, which can lead to gear damage during press-fitting. Therefore, a new gear press-fitting and welding device for new energy vehicles is proposed. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a gear press-fitting and welding device for new energy vehicles, which solves the problems mentioned in the background section.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a gear press-fitting and welding device for new energy vehicles, comprising: The base has detachable support legs installed at its bottom; A cylinder, which is fixed to the upper side wall of the base; A sliding rod, which is fixed above the base; A press plate is slidably connected to the outer wall of the slide rod, and the press plate is fixedly connected to the output end of the cylinder; A gear holder, which is fixed above the base; A servo motor, which is fixed to the bottom of the base; A rotating rod passes through the bottom of the base and is rotatably connected at the point of penetration. The rotating rod is fixed to the output end of the servo motor and is fixedly connected to the gear seat. A laser welding machine, wherein the laser welding machine is fixed to the upper side wall of the base; The bottom groove is formed on the lower side wall of the base; L-shaped rod, the L-shaped rod being slidably connected to the inner wall of the bottom groove opening; A reset spring, one end of which is fixed to the inner wall of the bottom groove, and the other end of which is fixedly connected to an L-shaped rod; A triangular plate, which is fixed below the pressure plate; A limiting rod, wherein the limiting rod passes through the L-shaped rod and is slidably connected at the point of penetration; A stop plate, which is fixed to the end of the limiting rod away from the L-shaped rod; A compression spring, one end of which is fixed to the side wall of the abutment near the L-shaped rod, and the other end of which is fixedly connected to the L-shaped rod.

[0006] According to the above technical solution, a clamping plate is rotatably connected above the abutment plate, a small torsion spring is fixed above the abutment plate, the small torsion spring is fixedly connected to the clamping plate, and the triangular plate is used to squeeze the L-shaped rod and move the L-shaped rod.

[0007] According to the above technical solution, a clamping device is provided above the base, which is used to clamp the workpiece placed in the gear seat; a cleaning device is provided above the base, which is used to clean the welding slag generated during welding.

[0008] According to the above technical solution, the clamping device includes: a through groove, which is formed on the side wall of the gear seat; An annular plate, which is slidably connected to the inner wall of the gear seat; A support spring, one end of which is fixed to the bottom of the gear seat, and the other end of which is fixedly connected to the annular plate; A connecting plate, which is fixed to the side wall of the annular plate and is slidably connected to the inner wall of the through groove away from the laser welding machine; A vertical rod, which is fixed above the base.

[0009] According to the above technical solution, a fixing block is fixed below the connecting plate, a sliding sleeve is slidably connected to the outer wall of the fixing block, a locking block is slidably connected to the inner wall of the vertical rod, a small spring is fixed to the inner side of the locking block, the small spring is fixedly connected to the inner wall of the vertical rod, and the locking block is used to lock between the fixing block and the sliding sleeve to limit the position of the connecting plate.

[0010] According to the above technical solution, a fixing plate is fixed above the base, a trapezoidal plate is slidably connected to the inner wall of the through groove near the laser welding machine, a long spring is fixed to the side wall of the trapezoidal plate near the fixing plate, the long spring is fixedly connected to the fixing plate, a rotating seat is fixed to the outer wall of the gear seat, a pressure rod is rotatably connected to the inner side wall of the rotating seat, a large torsion spring is fixed to the inner side wall of the rotating seat, the large torsion spring is fixedly connected to the side wall of the pressure rod, and the lower end of the pressure rod is in contact with the trapezoidal plate.

[0011] According to the above technical solution, the cleaning device includes: a hollow box, which is fixed to the upper side wall of the base; A pressure plate, which is slidably connected to the inner wall of the hollow box; A right-angle rod, one end of which is fixed to the side wall of the pressure plate near the laser welding machine, the right-angle rod passes through the upper wall of the hollow box and is slidably connected at the penetration point, and the other end of which is fixedly connected to the pressure plate; The trachea is fixed to the side wall of the hollow box; A jet box, fixed to the lower end of an air pipe, is used to blow air onto the weld joint.

[0012] According to the above technical solution, a convex ball is fixed on the upper side wall of the base, a horizontal plate is fixed on the outer wall of the right-angle rod, a striking rod passes through the horizontal plate and is slidably connected at the passage, a reciprocating spring is fixed on the side wall of the horizontal plate near the base, the reciprocating spring is fixedly connected to the striking rod, and the convex ball is used to make the striking rod strike the upper side wall of the base to generate vibration.

[0013] This invention provides a gear press-fitting and welding device for new energy vehicles. It has the following beneficial effects: 1. In the process of pressing the shaft after placing it above the center of the gear, the shaft may shake due to vibrations generated during the operation of the device, causing positional displacement. To solve this problem, the invention incorporates a bottom groove, a return spring, an L-shaped rod, a triangular plate, a limiting rod, a pressure spring, and a stop plate. During the pressing process, as the pressing plate moves downwards, the stop plates on both sides press against the shaft. As the pressing progresses, the pressing force of the stop plates on the shaft increases, reducing the impact of the overall device shaking on the shaft. This solves the problem of press-fit damage caused by positional displacement between the shaft and the gear due to shaking during the pressing process.

[0014] 2. When the shaft is initially placed at the center of the gear, the central axis of the shaft and the central axis of the gear are often difficult to align perfectly. If forced pressing is performed in this state, misalignment will occur between the shaft and the gear, resulting in uneven pressing resistance, wear of parts, or even assembly failure. To address this problem, a clamping plate and a small torsion spring are set up. As the abutment plate approaches the shaft, the clamping plate clamps the outer wall of the shaft, so that the shaft is centered under the action of the clamping plate before being squeezed by the pressing plate, making the central axis of the shaft and the central axis of the gear completely coincide, thus solving the problem of pressing damage caused by the incomplete alignment of the central axes of the shaft and the gear.

[0015] 3. In this invention, during the process of removing the gear and shaft after pressing, the operator cannot keep the gear and shaft completely vertical, which will cause the outer wall of the gear to rub against the inner wall of the gear seat. By setting a through groove, connecting plate, vertical rod, sliding sleeve, fixing block, small spring, annular plate, support spring and locking block, after pressing, the annular plate automatically lifts the pressed gear and shaft upward, so that most of the gear is separated from the gear seat, which makes it easier for the operator to grasp, reduces the friction between the outer wall of the gear and the inner wall of the gear seat, and solves the problem of damage to the outer wall of the gear caused by friction during the removal of the gear and shaft.

[0016] 4. After the press-fitting is completed, the press-fitting joints of the gear and shaft are welded. During the rotation of the gear seat, the gear and gear seat are delayed and out of sync. By setting up a large torsion spring, pressure rod, fixing plate, long spring, trapezoidal plate and rotating seat, after the gear is placed on the annular plate and pressed down, the pressure rod will apply downward pressing force to the gear, which increases the friction between the gear and gear seat, thereby making the gear seat synchronously drive the rotation of the gear and shaft. This solves the problem of poor welding effect caused by the asynchrony between the gear seat and the gear.

[0017] 5. After the welding operation is completed, welding slag will remain on the upper surface of the gear. When the gear and shaft are picked up and put down, the welding slag is easy to fall into the gear seat, which will interfere with the normal placement of subsequent gears. By setting up a right-angle rod, hollow box, pressure plate, air pipe and air jet box, the air jet box blows air to clean the upper surface of the gear during the upward reset of the pressure plate, so as to remove the welding slag on the gear surface in time and avoid the welding slag falling into the gear seat and causing the subsequent gears to be placed unevenly.

[0018] 6. This invention, by setting up a horizontal plate, a striking rod, a reciprocating spring, and a convex ball, allows the striking rod to reciprocate and vibrate the base while the air jet box is blowing. This vibration loosens the adhered welding slag, which is then removed by airflow. This effectively solves the problem of adhered welding slag falling into the gear seat during the part removal process. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a partial structural diagram of the present invention; Figure 3 This is a partial structural diagram of the present invention; Figure 4 This is a schematic diagram of the pressing device structure of the present invention; Figure 5 This is a partial structural diagram of the clamping device of the present invention; Figure 6 This is a schematic diagram of the cleaning device of the present invention.

[0020] In the diagram: 1. Base; 2. Support leg; 3. Cylinder; 4. Press plate; 5. Slide rod; 6. Gear seat; 7. Servo motor; 8. Rotating rod; 9. Laser welding machine; 10. Bottom groove; 11. Return spring; 12. L-shaped rod; 13. Triangular plate; 14. Limiting rod; 15. Pressure spring; 16. Support plate; 17. Clamping plate; 18. Small torsion spring; 1901. Through groove; 1902. Connecting plate; 1903. Vertical rod; 1904. Sliding sleeve; 1905. Fixing block; 190 6. Small spring; 1907. Locking block; 1908. Large torsion spring; 1909. Pressure rod; 1910. Ring plate; 1911. Support spring; 1912. Fixing plate; 1913. Long spring; 1914. Trapezoidal plate; 1915. Rotating seat; 2001. Right-angle rod; 2002. Hollow box; 2003. Pressure plate; 2004. Air tube; 2005. Air jet box; 2006. Horizontal plate; 2007. Striking rod; 2008. Reciprocating spring; 2009. Convex ball. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1-6One embodiment of the present invention is: a gear press-fitting and welding device for new energy vehicles, comprising: a base 1, a cylinder 3, a slide rod 5, a press-fitting plate 4, a gear seat 6, a servo motor 7, a rotating rod 8, a laser welding machine 9, a bottom groove 10, an L-shaped rod 12, a return spring 11, a triangular plate 13, a limiting rod 14, a stop plate 16, a pressure spring 15, a clamping plate 17, and a small torsion spring 18; a support leg 2 is detachably installed on the bottom of the base 1; the cylinder 3 is fixed to the upper side wall of the base 1; the slide rod 5 is fixed above the base 1; the press-fitting plate 4 is slidably connected to the outer wall of the slide rod 5, and the press-fitting plate 4 is fixedly connected to the output end of the cylinder 3; the gear seat 6 is fixed above the base 1; the servo motor 7 is fixed below the base 1; the rotating rod 8 passes through the bottom of the base 1 and is rotatably connected at the point of penetration, the rotating rod 8 is fixed to the output end of the servo motor 7, and the rotating rod 8 is fixedly connected to the gear seat 6. The laser welding machine 9 is fixed to the upper side wall of the base 1; the bottom groove 10 is opened on the lower side wall of the base 1; the L-shaped rod 12 is slidably connected to the inner wall of the bottom groove 10; one end of the return spring 11 is fixed to the inner wall of the bottom groove 10, and the other end of the return spring 11 is fixedly connected to the L-shaped rod 12; the triangular plate 13 is fixed below the pressure plate 4; the limiting rod 14 passes through the L-shaped rod 12 and is slidably connected at the point of penetration; the abutment plate 16 is fixed to the end of the limiting rod 14 away from the L-shaped rod 12; one end of the pressure spring 15 is fixed to the side wall of the abutment plate 16 near the L-shaped rod 12, and the other end of the pressure spring 15 is fixedly connected to the L-shaped rod 12; the clamping plate 17 is rotatably connected above the abutment plate 16; the small torsion spring 18 is fixed above the abutment plate 16 and is fixedly connected to the clamping plate 17; the triangular plate 13 is used to press the L-shaped rod 12 and move the L-shaped rod 12.

[0023] By setting up a base 1, support leg 2, cylinder 3, pressing plate 4, slide rod 5, gear seat 6, servo motor 7, rotating rod 8, laser welding machine 9, bottom groove 10, return spring 11, L-shaped rod 12, triangular plate 13, limit rod 14, pressure spring 15, and abutment plate 16, the stability of the pressing is ensured, solving the problem that the shaft may shift when the pressing begins with the shaft placed in the center of the gear; and by setting up a clamping plate 17 and a small torsion spring 18, the stability of the shaft to be pressed is further improved. In this embodiment, the gear to be pressed is placed in the gear seat 6, and then the shaft to be pressed is placed on the gear. The cylinder 3 is extended, causing the pressing plate 4 to move downwards. The pressing plate 4 drives the triangular plate 13 to move downwards. The inclined surface of the triangular plate 13 presses against the L-shaped rod 12, forcing the L-shaped rod 12 to move closer to the gear seat 6. The L-shaped rod 12 drives the limiting rod 14 and the abutment plate 16 to move towards the shaft to be pressed. When the abutment plates 16 on both sides abut against the shaft to be pressed, the abutment plates 16 remain in place. As the triangular plate 13 descends, the lever 12 continues to move closer to the abutment plate 16. With the compression of the pressure spring 15, the clamping force of the abutment plates 16 on both sides on the shaft to be pressed increases, so that the shaft to be pressed can be stably positioned in the center of the gear. When the abutment plate 16 moves toward the shaft to be pressed, the clamping plate 17 is forced to flip outward after pressing against the outer wall of the shaft to be pressed. With the compression of the small torsion spring 18, the clamping plate 17 clamps the shaft to be pressed.

[0024] Please see Figures 1-6 Based on the above embodiments, in another embodiment of the present invention, a pressing device is provided above the base 1, which is used to press the workpiece placed in the gear seat 6. The clamping device includes: a through groove 1901, an annular plate 1910, a support spring 1911, a connecting plate 1902, a vertical rod 1903, a fixing block 1905, a sliding sleeve 1904, a locking block 1907, a small spring 1906, a fixing plate 1912, a trapezoidal plate 1914, a long spring 1913, a rotating seat 1915, a pressure rod 1909, and a large torsion spring 1908; the through groove 1901 is formed on the side wall of the gear seat 6; the annular plate 1910 is slidably connected to the gear seat. The inner wall of 6; one end of the support spring 1911 is fixed to the bottom of the gear seat 6, and the other end of the support spring 1911 is fixedly connected to the annular plate 1910; the connecting plate 1902 is fixed to the side wall of the annular plate 1910, and the connecting plate 1902 is slidably connected to the inner wall of the through groove 1901 away from the laser welding machine 9; the vertical rod 1903 is fixed above the base 1, the fixing block 1905 is fixed below the connecting plate 1902, and the sliding sleeve 1904 is slidably connected to the fixing block. The outer wall of 1905, the locking block 1907 is slidably connected to the inner wall of the vertical rod 1903, the small spring 1906 is fixed to the inner side of the locking block 1907, and the small spring 1906 is fixedly connected to the inner wall of the vertical rod 1903. The locking block 1907 is used to lock between the fixing block 1905 and the sliding sleeve 1904 to limit the position of the connecting plate 1902. The fixing plate 1912 is fixed above the base 1, and the trapezoidal plate 1914 is slidably connected to the inner wall of the through groove 1901 near the laser welding machine 9. The long spring 1913 is fixed to the side wall of the trapezoidal plate 1914 near the fixed plate 1912. The long spring 1913 is fixedly connected to the fixed plate 1912. The rotating seat 1915 is fixed to the outer wall of the gear seat 6. The pressure rod 1909 is rotatably connected to the inner side wall of the rotating seat 1915. The large torsion spring 1908 is fixed to the inner side wall of the rotating seat 1915. The large torsion spring 1908 is fixedly connected to the side wall of the pressure rod 1909. The lower end of the pressure rod 1909 is in contact with the trapezoidal plate 1914.

[0025] By incorporating a through slot 1901, connecting plate 1902, vertical rod 1903, sliding sleeve 1904, fixing block 1905, small spring 1906, annular plate 1910, supporting spring 1911, and locking block 1907, the device is made easier for workers to handle, improving its convenience. Furthermore, by incorporating a large torsion spring 1908, pressure rod 1909, fixing plate 1912, long spring 1913, trapezoidal plate 1914, and rotating seat 1915, the gears are made more stable during the pressing process, enhancing the stability of the pressing process. A cleaning device is installed above the base 1 to clean the welding slag produced during welding. The cleaning device includes: a hollow box 2002, a pressure plate 2003, a right-angle rod 2001, an air pipe 2004, an air jet box 2005, a convex ball 2009, a horizontal plate 2006, a striking rod 2007, and a reciprocating spring 2008. The hollow box 2002 is fixed to the upper side wall of the base 1. The pressure plate 2003 is slidably connected to the inner wall of the hollow box 2002. One end of the right-angle rod 2001 is fixed to the side wall of the pressure plate 4 near the laser welding machine 9. The right-angle rod 2001 passes through the upper wall of the hollow box 2002 and is slidably connected at the point of penetration. The other end of 1 is fixedly connected to the pressure plate 2003; the air pipe 2004 is fixed to the side wall of the hollow box 2002; the air jet box 2005 is fixed to the lower end of the air pipe 2004, and the air jet box 2005 is used to blow air to the weld; the convex ball 2009 is fixed to the upper side wall of the base 1; the horizontal plate 2006 is fixed to the outer wall of the right angle rod 2001; the striking rod 2007 passes through the horizontal plate 2006 and is slidably connected at the point of penetration; the reciprocating spring 2008 is fixed to the side wall of the horizontal plate 2006 near the base 1, and the reciprocating spring 2008 is fixedly connected to the striking rod 2007; the convex ball 2009 is used to make the striking rod 2007 strike the upper side wall of the base 1 to generate vibration.

[0026] By setting up a right-angle rod 2001, a hollow box 2002, a pressure plate 2003, an air pipe 2004, and an air jet box 2005, welding slag is prevented from accumulating in the gear seat 6, which would affect the placement of the next gear, thereby further stabilizing the press-fitting process. Furthermore, by setting up a horizontal plate 2006, a striking rod 2007, a reciprocating spring 2008, and a convex ball 2009, the vibration generated by the striking rod 2007 prevents the welding slag from sticking and being difficult to clean by simply blowing air.

[0027] In this embodiment, during operation: After placing the gear on the annular plate 1910, manually pressing the gear causes the annular plate 1910 to move downwards. The annular plate 1910 then moves the fixing block 1905 downwards. When the lower inclined surface of the fixing block 1905 presses against the locking block 1907, it forces the locking block 1907 to move inwards. Since the sliding sleeve 1904 is wider than the lower end of the fixing block 1905, when the lower end of the fixing block 1905 exceeds the locking block 1907, the locking block 1907 resets under the elastic force of the small spring 1906, causing the locking block 1907 to lock between the lower ends of the sliding sleeve 1904 and the fixing block 1905, thus locking the position of the annular plate 1910. At this time, the extension cylinder 3 drives the pressing plate 4 to press the shaft to be pressed downwards. As the pressing action occurs, the annular plate 1910 continues to move the fixing block 1905 and the sliding sleeve 1904 downwards, and the sliding sleeve 1904 continues to move downwards. This causes the sliding sleeve 1904 to move downwards beyond the locking block 1907. When the pressing is completed, the control cylinder 3 moves the pressing plate 4 upwards, causing the lower ends of the sliding sleeve 1904 and the fixing block 1905 to fit together. Since the sliding sleeve 1904 is wider than the lower end of the fixing block 1905, the annular plate 1910 drives the fixing block 1905 and the sliding sleeve 1904 to move upwards and break free from the restriction of the locking block 1907. After the pressing is completed, the annular plate 1910 lifts the pressed gear and shaft upwards. During the downward movement of the annular plate 1910, the annular plate 1910 presses the inclined surface of the trapezoidal plate 1914, forcing the trapezoidal plate 1914 to move closer to the fixing plate 1912. With the compression of the long spring 1913, the trapezoidal plate 1914 pushes the pressure rod 1909 to flip inwards during the movement of the trapezoidal plate 1914. Accompanied by the compression of the large torsion spring 1908, the pressure rod 1909 presses the gear.

[0028] After the pressing is completed, the servo motor 7 and the laser welding machine 9 are started simultaneously, causing the gear seat 6 to rotate. The laser welding machine 9 then welds the pressing area of ​​the gear. After welding, the control cylinder 3 moves the pressing plate 4 upwards. The pressing plate 4 drives the right-angle rod 2001 upwards, and simultaneously, the right-angle rod 2001 drives the pressure plate 2003 upwards, thus compressing the air inside the hollow box 2002. This compressed air passes through the air pipe 2004 and is finally ejected from the jet box 2005, disposing of the weld slag produced during welding. Cleaning is performed; during the upward movement of the right-angle rod 2001, the right-angle rod 2001 drives the horizontal plate 2006 and the striking rod 2007 to move upward. When the end of the striking rod 2007 presses against the convex ball 2009, the striking rod 2007 moves towards the pressure plate 4, accompanied by the compression of the reciprocating spring 2008. When the striking rod 2007 disengages from the convex ball 2009, the striking rod 2007 vibrates by striking the upper side wall of the base 1 under the elastic force of the reciprocating spring 2008. The vibration makes it easier for the welding slag to be blown off.

[0029] 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 gear press-fitting and welding device for new energy vehicles, characterized in that, include: The base (1) has a support leg (2) detachably mounted on its bottom; Cylinder (3), the cylinder (3) is fixed to the upper side wall of the base (1); Slide rod (5), which is fixed above the base (1); Press plate (4), the press plate (4) is slidably connected to the outer wall of slide rod (5), and the press plate (4) is fixedly connected to the output end of cylinder (3); Gear seat (6), the gear seat (6) is fixed above the base (1); Servo motor (7), the servo motor (7) is fixed below the base (1); Rotary rod (8), the rotating rod (8) passes through the bottom of the base (1) and is rotatably connected at the point of penetration, the rotating rod (8) is fixed at the output end of the servo motor (7), and the rotating rod (8) is fixedly connected to the gear seat (6); Laser welding machine (9), which is fixed to the upper side wall of base (1); Bottom groove (10), the bottom groove (10) is opened on the lower side wall of the base (1), the inner wall of the bottom groove (10) is fixed to one end of the return spring (11), the other end of the return spring (11) is fixedly connected to the L-shaped rod (12), and the L-shaped rod (12) is slidably connected to the inner wall of the bottom groove (10); A triangular plate (13) is fixed below the pressure plate (4); Limiting rod (14), the limiting rod (14) passes through the L-shaped rod (12) and is slidably connected at the point of penetration; A stop plate (16) is fixed to the end of the limiting rod (14) away from the L-shaped rod (12); A pressure spring (15) is fixed at one end to the side wall of the abutment plate (16) near the L-shaped rod (12), and the other end of the pressure spring (15) is fixedly connected to the L-shaped rod (12).

2. The gear press-fitting and welding device for new energy vehicles according to claim 1, characterized in that, A clamping plate (17) is rotatably connected above the abutment plate (16), and a small torsion spring (18) is fixed above the abutment plate (16). The small torsion spring (18) is fixedly connected to the clamping plate (17), and the triangular plate (13) is used to squeeze the L-shaped rod (12) and move the L-shaped rod (12).

3. The gear press-fitting and welding device for new energy vehicles according to claim 2, characterized in that, A clamping device is provided above the base (1), which is used to clamp the workpiece placed in the gear seat (6); A cleaning device is provided above the base (1), which is used to clean the welding slag generated during welding.

4. The gear press-fitting and welding device for new energy vehicles according to claim 1, characterized in that, The clamping device includes: A through groove (1901) is formed on the side wall of the gear seat (6); An annular plate (1910) is slidably connected to the inner wall of the gear seat (6); A support spring (1911) is provided, one end of which is fixed to the bottom of the gear seat (6), and the other end of which is fixedly connected to the annular plate (1910). A connecting plate (1902) is fixed to the side wall of an annular plate (1910), and the connecting plate (1902) is slidably connected to the inner wall of a through groove (1901) away from the laser welding machine (9); A vertical rod (1903) is fixed above the base (1).

5. The gear press-fitting and welding device for new energy vehicles according to claim 4, characterized in that, A fixing block (1905) is fixed below the connecting plate (1902). A sliding sleeve (1904) is slidably connected to the outer wall of the fixing block (1905). A locking block (1907) is slidably connected to the inner wall of the vertical rod (1903). A small spring (1906) is fixed to the inner side of the locking block (1907). The small spring (1906) is fixedly connected to the inner wall of the vertical rod (1903). The locking block (1907) is used to lock between the fixing block (1905) and the sliding sleeve (1904) to limit the position of the connecting plate (1902).

6. The gear press-fitting and welding device for new energy vehicles according to claim 5, characterized in that, A fixing plate (1912) is fixed above the base (1). A trapezoidal plate (1914) is slidably connected to the inner wall of the through groove (1901) of the laser welding machine (9). A long spring (1913) is fixed to the side wall of the trapezoidal plate (1914) near the fixing plate (1912). The long spring (1913) is fixedly connected to the fixing plate (1912). A rotating seat (1915) is fixed to the outer wall of the gear seat (6). A pressure rod (1909) is rotatably connected to the inner wall of the rotating seat (1915). A large torsion spring (1908) is fixed to the inner wall of the rotating seat (1915). The large torsion spring (1908) is fixedly connected to the side wall of the pressure rod (1909). The lower end of the pressure rod (1909) is in contact with the trapezoidal plate (1914).

7. The gear press-fitting and welding device for new energy vehicles according to claim 6, characterized in that, The cleaning device includes: Hollow box (2002), the hollow box (2002) is fixed to the upper side wall of the base (1); Pressure plate (2003), which is slidably connected to the inner wall of the hollow box (2002); A right-angle rod (2001) is fixed at one end to the side wall of the pressure plate (4) near the laser welding machine (9). The right-angle rod (2001) passes through the upper wall of the hollow box (2002) and is slidably connected at the penetration point. The other end of the right-angle rod (2001) is fixedly connected to the pressure plate (2003). Trachea (2004), said trachea (2004) is fixed to the side wall of the hollow box (2002); A jet box (2005) is fixed to the lower end of an air pipe (2004) and is used to blow air onto the weld joint.

8. The gear press-fitting and welding device for new energy vehicles according to claim 7, characterized in that, A convex ball (2009) is fixed to the upper side wall of the base (1), and a horizontal plate (2006) is fixed to the outer wall of the right-angle rod (2001). A striking rod (2007) passes through the horizontal plate (2006) and is slidably connected at the point of penetration. A reciprocating spring (2008) is fixed to the side wall of the horizontal plate (2006) near the base (1). The reciprocating spring (2008) is fixedly connected to the striking rod (2007). The convex ball (2009) is used to make the striking rod (2007) vibrate by striking the upper side wall of the base (1).

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