A stamping device for spline drive flange

Abstract

The present invention relates to the technical field of stamping holes of spline drive flanges, and in particular to a stamping device for a spline drive flange, comprising a stamping base, a placing frame, a stamping frame, a clamping mechanism and a liftable stamping head. In the clamping mechanism designed by the present invention, the clamping block moves downward and rests on the spline drive flange, wherein the clamping block can limit the spline drive flange in the vertical direction, and the clamping block drives the clamping protrusion to move to the inside of the through groove. At this time, the rotating motor is started to drive the adjusting roller to rotate. During the rotation of the adjusting roller, the linkage rod is driven to move outward through the adjusting protrusion. During the movement of the linkage rod, the limiting protrusion is driven to be clamped in the inside of the arc groove, and then the limiting protrusion cooperates with the arc groove to limit the spline drive flange, thereby ensuring that the spline drive flange will not rotate relative to each other during the stamping process, thereby improving the stability of the spline drive flange during the stamping process.

Description

Technical Field

[0001] The present invention relates to the technical field of spline-driven flange stamping holes, and particularly relates to a stamping device for a spline-driven flange. Background Art

[0002] A spline-driven flange is a component used to connect shafts. During the rotation of the shafts, in order to reduce the rotational inertia between the shafts during rotation to ensure the service life of the shafts, the weight between the shafts is often reduced. However, in order to ensure the use strength of the shafts, the weight of the shafts cannot be reduced, so the method of reducing the weight of the spline-driven flange is often adopted. During the production of the spline-driven flange, the method of opening stamping holes on its surface is used to reduce the weight of the flange.

[0003] In the existing stamping process of the spline-driven flange, simple mechanical limiting cannot completely limit the spline-driven flange. Therefore, too large impact force of the stamping head may cause the spline-driven flange to shake. Furthermore, the shaking of the spline-driven flange may cause it to be misaligned with the stamping head, thereby affecting the accuracy of the stamping holes on the spline-driven flange.

[0004] During the stamping process of the stamping head on the spline-driven flange, the stamping head squeezing the spline-driven flange may cause micro-deformation. Furthermore, the micro-deformation may cause the connection holes to deform, thereby affecting the fitting accuracy between the bolts and the connection holes during subsequent use, resulting in the bolts being unable to extend into the connection holes, affecting the installation of the spline-driven flange. Summary of the Invention

[0005] To solve the above problems, the present invention adopts the following technical solutions: A stamping device for a spline-driven flange, including a stamping base. In the middle of the upper end surface of the stamping base, a placement rack is rotatably installed. On the upper end surface of the stamping base, a stamping rack with a U-shaped structure is provided, and the two vertical sections of the stamping rack are respectively fixed on the left and right sides of the upper end surface of the stamping base. A clamping mechanism is commonly installed on the lower end surface of the horizontal section of the stamping rack and the placement rack. On the lower right side of the horizontal section of the stamping rack, a liftable stamping head is installed. On the upper end surface of the stamping rack, a plurality of stamping grooves are evenly circumferentially opened.

[0006] The clamping mechanism includes a lifting cylinder installed on the lower end surface of the horizontal section of the stamping rack through a cylinder seat. The lower end surface of the telescopic end of the lifting cylinder is rotatably installed with a clamping block. The lower end surface of the clamping block is provided with a clamping protrusion. On the circumferential surface of the clamping protrusion, a plurality of evenly distributed limiting protrusions are slidably arranged. Inside the clamping protrusion, a locking groove is opened. On the upper end surface inside the locking groove, a rotating motor is installed through a motor seat. The lower end surface of the output shaft of the rotating motor is installed with an adjusting roller. On the circumferential surface of the adjusting roller, a plurality of adjusting protrusions corresponding to the limiting protrusions are provided. On the side of the limiting protrusion close to the locking groove, a linkage rod is fixedly installed, and the end of the linkage rod away from the limiting protrusion abuts against the adjusting roller.

[0007] Preferably, a winding roller is installed on the middle part of the upper end surface of the placing frame through a bearing, and a linkage groove is provided on the upper end surface of the winding roller, and a linkage protrusion corresponding to the linkage groove is provided on the lower end surface of the adjusting roller. A plurality of locking grooves are evenly provided on the side edge of the upper end surface of the placing frame, and a wiring groove is provided between the locking groove and the winding roller, and a locking plate is slidingly provided inside the locking groove, and a symmetrical connecting spring rod is installed between the side of the locking plate close to the clamping block and the inner wall of the locking groove, and a connecting rope is provided inside the wiring groove, one end of the connecting rope is fixed on the locking plate, and the other end of the connecting rope is wound around the winding roller.

[0008] Preferably, a plurality of limiting grooves corresponding to the locking grooves are evenly opened in the circumference of the upper end surface of the placement rack, and a limiting cylinder extending in the vertical direction is provided inside the limiting groove.

[0009] Preferably, the limiting cylinder is composed of four limiting arc plates, and a clearance groove corresponding to the limiting arc plate is opened on the side wall of the limiting groove. A reset spring rod is installed between the inner wall of the clearance groove and the corresponding limiting arc plate. A pressing rod corresponding to the limiting cylinder is installed on the lower end face of the clamping block, and the lower end face of the pressing rod is provided with an annular inclined surface.

[0010] Preferably, a plurality of linkage teeth are evenly installed on the circumferential surface of the placement frame, a driving motor is installed on the front side of the upper end of the stamping base through a motor seat, and a driving gear matching the linkage teeth is installed on the output shaft of the driving motor.

[0011] Preferably, a return plate is provided inside the stamping groove, and a return spring rod is installed between the return plate and the bottom of the stamping groove. The waste material after the spline drive flange is stamped enters the stamping groove. At this time, the waste material drives the return spring rod downward to be compressed through the return plate. When the stamping of the spline drive flange is completed, the compressed return spring rod resets upward, and then the return spring rod drives the spline drive flange waste material to move upward through the return plate, so that the spline drive flange is moved out of the stamping groove, so that the staff can directly remove the spline drive flange waste material, avoiding the tediousness of deducting the spline drive flange waste material from the inside of the stamping groove.

[0012] Preferably, the linkage groove is composed of a circular guide groove and clamping grooves symmetrically arranged on the front and rear sides of the guide groove. The clamping groove can limit the linkage protrusion to prevent the linkage protrusion from entering the guide groove and causing the linkage protrusion to rotate relative to the guide groove when the linkage protrusion drives the winding roller to rotate.

[0013] Preferably, the side of the locking plate close to the clamping block is set as an inwardly concave arc structure, which increases the contact area between the locking plate and the outer side wall of the spline drive flange and improves the locking and limiting effect of the locking plate on the spline drive flange.

[0014] The beneficial effects of the present invention are: 1. In the clamping mechanism designed in the present invention, the clamping block moves down and rests on the spline drive flange, wherein the clamping block can limit the spline drive flange in the vertical direction, and the clamping block drives the clamping protrusion to move to the inside of the through groove. At this time, the rotating motor is started to drive the adjusting roller to rotate. During the rotation of the adjusting roller, the adjusting protrusion drives the linkage rod to move outward, and during the movement of the linkage rod, the limiting protrusion is driven to be clamped in the arc groove, and then the limiting protrusion cooperates with the arc groove to limit the spline drive flange, thereby ensuring that the spline drive flange will not rotate relative to each other during the stamping process, thereby improving the stability of the spline drive flange during the stamping process.

[0015] 2. In the limiting cylinder designed in the present invention, the limiting cylinder can guide the spline drive flange during the placement process of the spline drive flange, so that the spline drive flange is placed at a certain angle, ensuring that the arc groove inside the spline drive flange cooperates with the limiting protrusion, and thus ensuring that the subsequent limiting protrusion and the clamping protrusion can quickly enter the through groove; the limiting cylinder can support the connecting hole during the stamping process of the spline drive flange, ensuring that the deformation of the spline drive flange during the stamping process will not cause deformation inside the connecting hole, so that the bolt and the connecting hole can be fully matched. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the accompanying drawings and examples.

[0017] Figure 1 It is a schematic diagram of the direct three-dimensional installation structure of the present invention and the spline drive flange.

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention.

[0019] Figure 3 This invention Figure 2 Schematic diagram of part of the three-dimensional structure.

[0020] Figure 4 This invention Figure 3 A partial enlarged view of point A.

[0021] Figure 5 This invention Figure 3 A partial enlarged view of point B.

[0022] Figure 6 This invention Figure 2 main view.

[0023] Figure 7 It is a front view of part of the clamping mechanism of the present invention.

[0024] Figure 8 This invention Figure 7 Bottom view of .

[0025] Figure 9 It is a schematic diagram of the internal structure of the clamping protrusion of the present invention (viewed from the bottom upwards).

[0026] Figure 10 It is a schematic diagram of the internal structure of the placement plate of the present invention (viewed from the front to the back).

[0027] Figure 11 It is a schematic diagram of the internal structure of the placement plate of the present invention (viewed from the bottom upwards).

[0028] Figure 12 This is the present invention Figure 11 Partial enlarged view of part C

[0029] Figure 13 It is a comparison diagram of the spline drive flange before and after stamping of the present invention.

[0030] In the figure: 1, stamping base; 2, stamping frame; 3, placement frame; 31, locking groove; 32, limiting groove; 33, limiting cylinder; 34, limiting arc plate; 35, relief groove; 36, return spring rod; 37, pressing rod; 38, linkage tooth; 39, drive motor; 30, drive gear; 311, winding roller; 312, linkage groove; 313, linkage protrusion; 314, wire groove; 315, locking plate; 316, connecting spring rod; 317, connecting rope; 318, guiding groove; 319, clamping groove; 4, clamping mechanism; 41, lifting cylinder; 42, lifting cylinder; 43, clamping protrusion; 44, limiting protrusion; 45, locking groove; 46, rotating motor; 47, adjusting roller; 48, adjusting protrusion; 49, linkage rod; 5, stamping head; 6, stamping groove; 61, return plate; 62, return spring rod; 7, spline drive flange; 71, through groove; 72, arc groove; 73, connecting hole; 74, stamping hole. Specific embodiments

[0031] The following will describe the embodiments of the present invention in detail with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.

[0032] Refer to Figure 1 and Figure 2 , a stamping device for a spline drive flange, including a stamping base 1. A placement frame 3 is rotatably installed in the middle of the upper end surface of the stamping base 1. A stamping frame 2 with a U-shaped structure is arranged on the upper end surface of the stamping base 1, and the two vertical sections of the stamping frame 2 are respectively fixed on the left and right sides of the upper end surface of the stamping base z. A clamping mechanism 4 is commonly installed on the lower end surface of the horizontal section of the stamping frame 2 and the placement frame 3. A liftable stamping head 5 is installed on the right side of the lower end surface of the horizontal section of the stamping frame 2. A plurality of stamping grooves 6 are circumferentially and evenly opened on the lower end surface of the upper end surface of the stamping frame 2.

[0033] Refer to Figure 2 , Figure 7 、 Figure 8 as well as Figure 9 The clamping mechanism 4 includes a lifting cylinder 41 installed on the lower end surface of the horizontal section of the stamping machine frame 2 through a cylinder seat, wherein a clamping block 42 is rotatably installed on the lower end surface of the telescopic end of the lifting cylinder 41, and a clamping protrusion 43 is provided on the lower end surface of the clamping block 42. A plurality of evenly distributed limiting protrusions 44 are slidingly provided on the circumferential surface of the clamping protrusion 43. A locking groove 45 is provided inside the clamping protrusion 43, and a rotating motor 46 is installed on the upper end surface of the locking groove 45 through the motor seat. An adjusting roller 47 is installed on the lower end surface of the output shaft of the rotating motor 46, and a plurality of adjusting protrusions 48 corresponding to the limiting protrusions 44 are provided on the circumferential surface of the adjusting roller 47. A linkage rod 49 is fixedly installed on the side of the limiting protrusion 44 close to the locking groove 45, and the end of the linkage rod 49 away from the limiting protrusion 44 rests on the adjusting roller 47.

[0034] See Figure 3 as well as Figure 4 The upper end surface of the placement rack 3 is evenly provided with a plurality of limiting grooves 32 corresponding to the locking grooves 31 in a circumferential direction, and a limiting cylinder 33 extending in the vertical direction is provided inside the limiting groove 32.

[0035] See Figure 4 、 Figure 6 as well as Figure 10 The limiting cylinder 33 is composed of four limiting arc plates 34. A clearance groove 35 corresponding to the limiting arc plate 34 is opened on the side wall of the limiting groove 32. A return spring rod 36 is installed between the inner wall of the clearance groove 35 and the corresponding limiting arc plate 34. A pressing rod 37 corresponding to the limiting cylinder 33 is installed on the lower end surface of the clamping block 42, and the lower end surface of the pressing rod 37 is provided with an annular inclined surface.

[0036] See Figure 13 The upper end surface of the spline drive flange 7 is provided with a through groove 71, a plurality of arc grooves 72 are evenly arranged circumferentially inside the through groove 71, a plurality of connecting holes 73 are evenly arranged circumferentially on the side of the through groove 71, and a plurality of stamping holes 74 are evenly arranged circumferentially outside the center line of the plurality of connecting holes 73.

[0037] During specific operation, the spline drive flange 7 is placed above the placement frame 3 so that the connecting hole 73 on the spline drive flange 7 is aligned with the limiting cylinder 33, and then the spline drive flange 7 is placed on the placement frame 3 and the limiting cylinder 33 passes through the connecting hole 73. When the spline drive flange 7 is placed, the lifting cylinder 41 is started to drive the clamping block 42 to move downward and make the clamping block 42 abut against the upper end surface of the spline drive flange 7, wherein the clamping block 42 can limit the spline drive flange 7 in the vertical direction. During the movement of the clamping block 42, the clamping protrusion 43 is driven to move into the arc groove 72 inside the spline drive flange 7, and then the clamping protrusion 43 drives the limiting protrusion 44 to move into the arc groove 72.

[0038] At this time, the rotating motor 46 is started to drive the adjusting roller 47 to rotate. During the rotation of the adjusting roller 47, the linkage rod 49 is driven to move outward through the adjusting protrusion 48. The linkage rod 49 is provided with an elastic member that can be used for resetting. During the movement of the linkage rod 49, the limiting protrusion 44 is driven to be clamped inside the arc groove 72. Then, the limiting protrusion 44 cooperates with the arc groove 72 through the clamping protrusion 43 to limit the spline drive flange 7, thereby ensuring that the spline drive flange 7 does not rotate relative to each other during the stamping process, thereby improving the stability of the spline drive flange 7 during the stamping process.

[0039] During the movement of the clamping block 42, the pressing rod 37 is driven to move downward. During the downward movement of the pressing rod 37, the limiting arc plate 34 is driven to open outward through the annular inclined surface. At this time, the four limiting arc plates 34 cooperate with each other to support the connecting hole 73, ensuring that the deformation of the spline drive flange 7 during the stamping process does not cause deformation inside the connecting hole 73, so that the bolt and the connecting hole 73 can be fully matched.

[0040] The reset spring rod 36 can quickly reset the limit arc plate 34 after the stamping is completed, and at the same time support the limit arc plate 34 to prevent the limit arc plate 34 from tilting during the movement. The limit cylinder 33 can guide the spline drive flange 7 during the placement of the spline drive flange 7, so that the spline drive flange 7 is placed at a certain angle, ensuring that the arc groove 72 inside the spline drive flange 7 cooperates with the limit protrusion 44, thereby ensuring that the subsequent limit protrusion 44 and the clamping protrusion 43 can quickly enter the through groove 71. The limit arc plate 34 set to be stretched and closed ensures that the diameter of the limit cylinder 33 is the smallest in the initial state, so that the connecting hole 73 of the spline drive flange 7 can quickly pass through the limit cylinder 33.

[0041] See Figure 3 A plurality of linkage teeth 38 are evenly installed on the circumferential surface of the placement frame 3, and a driving motor 39 is installed on the front side of the upper end of the stamping base 1 through the motor seat, and a driving gear 30 that matches the linkage teeth 38 is installed on the output shaft of the driving motor 39.

[0042] When the spline drive flange 7 is limited, the punching head 5 can be raised and lowered to punch the spline drive flange 7. After a single punching, the drive motor 39 is started to drive the drive gear 30 to rotate. During the rotation of the drive gear 30, the placement frame 3 is driven to rotate through the linkage gear 38, and then the placement frame 3 drives the spline drive flange 7 to rotate, so that the spline drive flange 7 can be circumferentially punched.

[0043] See Figure 3 、 Figure 10 、 Figure 11 as well as Figure 12 The cam 314 is provided with a latching portion 316 for latching the latch and the latching portion 317 for latching the cam 318. The latching portion 316 is provided with a latching portion 317 for latching the cam 318. The latching portion 316 is provided with a latching portion 317 for latching the cam 318.

[0044] See Figure 2 The side of the locking plate 315 close to the clamping block 42 is set to an inwardly concave arc structure, which increases the contact area between the locking plate 315 and the outer wall of the spline drive flange 7, and improves the locking and limiting effect of the locking plate 315 on the spline drive flange 7.

[0045] See Figure 5 The linkage groove 312 is composed of a circular guide groove 318 and a clamping groove 319 symmetrically arranged on the front and rear sides of the guide groove 318.

[0046] The clamping block 42 drives the adjusting roller 47 to move downward, and the linkage protrusion 313 is simultaneously driven to enter the linkage groove 312. The clamping groove 319 can limit the linkage protrusion 313 to prevent the linkage protrusion 313 from entering the guide groove 318. When the linkage protrusion 313 drives the winding roller 311 to rotate, the linkage protrusion 313 and the guide groove 318 rotate relative to each other. When the adjusting roller 47 rotates, the winding roller 311 is synchronously driven to rotate. When the winding roller 311 rotates, the connecting rope 317 is wound up. During the contraction process of 317, the locking plate 315 is driven to lock the outer wall of the spline drive flange 7, and the spline drive flange 7 is further locked and limited, thereby improving the stability of the spline drive flange 7 during the stamping process. The connecting spring rod 316 resets the locking plate 315 after the stamping is completed. At the same time, the connecting spring rod 316 also supports the locking plate 315. The displacement of the adjusting protrusion 48 to the linkage rod 49 during the rotation process is the same as the distance from the locking plate 315 to the outer wall of the spline drive flange 7.

[0047] See Figure 4 The stamping groove 6 is provided with a return plate 61, and a return spring rod 62 is installed between the return plate 61 and the bottom of the stamping groove 6. The waste material after the spline drive flange 7 is stamped enters the stamping groove 6. At this time, the waste material drives the return spring rod 62 to be compressed downward through the return plate 61. When the stamping of the spline drive flange 7 is completed, the compressed return spring rod 62 is reset upward, and then the return spring rod 62 drives the spline drive flange 7 waste material to move upward through the return plate 61, so that the spline drive flange 7 is moved out of the stamping groove 6, so that the staff can directly remove the spline drive flange 7 waste material, avoiding the tediousness of deducting the spline drive flange 7 waste material from the inside of the stamping groove 6.

[0048] The process of stamping the spline drive flange using the above-mentioned stamping equipment includes the following steps: Step 1, placement processing: Place the spline drive flange 7 on the placement frame 3 so that the connecting hole 73 on the spline drive flange 7 is aligned with the limiting cylinder 33, and then place the spline drive flange 7 on the placement frame 3 and allow the limiting cylinder 33 to pass through the connecting hole 73.

[0049] Step 2: Press and lock: Start the lifting cylinder 41 to drive the clamping block 42 to move downward and make the clamping block 42 rest against the upper end surface of the spline drive flange 7, start the rotating motor 46 to drive the adjusting roller 47 to rotate, and during the rotation of the adjusting roller 47, the adjusting protrusion 48 drives the linkage rod 49 to move outward, and during the movement of the linkage rod 49, the limiting protrusion 44 is driven to be clamped inside the arc groove 72, and then the limiting protrusion 44 cooperates with the arc groove 72 through the clamping protrusion 43 to limit the spline drive flange 7.

[0050] Step 3: Guide support: During the movement of the clamping block 42, the pressing rod 37 is driven to move downward. During the downward movement of the pressing rod 37, the limiting arc plate 34 is driven to open outward through the annular inclined surface. At this time, the four limiting arc plates 34 cooperate with each other to support the connecting hole 73.

[0051] Step 4: Punching: The punching head 5 can be raised and lowered to punch the spline drive flange 7. After a single punching, the drive motor 39 is started to drive the drive gear 30 to rotate. During the rotation of the drive gear 30, the placement frame 3 is driven to rotate through the linkage gear 38. Then, the placement frame 3 drives the spline drive flange 7 to rotate, and the spline drive flange 7 can be circumferentially punched to obtain a punched hole 74.

[0052] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A stamping device for a spline drive flange, comprising a stamping base (1), characterized in that: In the middle of the upper end surface of the described stamping base (1), a placing frame (3) is rotatably installed. On the upper end surface of the stamping base (1), a stamping frame (2) with a U-shaped structure is provided, and the two vertical sections of the stamping frame (2) are respectively fixed on the left and right sides of the upper end surface of the stamping base (1). A clamping mechanism (4) is jointly installed on the lower end surface of the horizontal section of the stamping frame (2) and the placing frame (3). On the lower right side of the horizontal section of the stamping frame (2), a liftable stamping head (5) is installed. A plurality of stamping grooves (6) are evenly circumferentially opened on the upper end surface of the stamping frame (2). Among them; The described clamping mechanism (4) includes a lifting cylinder (41) installed on the lower end surface of the horizontal section of the stamping frame (2) through a cylinder seat. Among them, a clamping block (42) is rotatably installed on the lower end surface of the telescopic end of the lifting cylinder (41). A clamping protrusion (43) is provided on the lower end surface of the clamping block (42). A plurality of uniformly distributed limiting protrusions (44) are slidably arranged on the circumferential surface of the clamping protrusion (43). A locking groove (45) is opened inside the clamping protrusion (43). A rotating motor (46) is installed on the upper end surface inside the locking groove (45) through a motor seat. A regulating roller (47) is installed on the lower end surface of the output shaft of the rotating motor (46). A plurality of regulating protrusions (48) corresponding to the limiting protrusions (44) are arranged on the circumferential surface of the regulating roller (47). A linkage rod (49) is fixedly installed on one side of the limiting protrusion (44) close to the locking groove (45). The end of the linkage rod (49) far from the limiting protrusion (44) abuts against the regulating roller (47); In the middle of the upper end surface of the described placing frame (3), a winding roller (311) is installed through a bearing. A linkage groove (312) is opened on the upper end surface of the winding roller (311). A linkage protrusion (313) corresponding to the linkage groove (312) is installed on the lower end surface of the regulating roller (47). A plurality of locking grooves (31) are evenly circumferentially opened on the side of the upper end surface of the placing frame (3). A wire groove (314) is opened between the locking groove (31) and the winding roller (311). A locking plate (315) is slidably arranged inside the locking groove (31). Symmetrical connecting spring rods (316) are installed between the side of the locking plate (315) close to the clamping block (42) and the inner wall of the locking groove (31). A connecting rope (317) is arranged inside the wire groove (314). One end of the connecting rope (317) is fixed on the locking plate (315), and the other end of the connecting rope (317) is wound around the winding roller (311).

2. The stamping equipment for a spline drive flange according to claim 1, characterized in that: A plurality of limiting grooves (32) corresponding to the locking grooves (31) one by one are evenly circumferentially opened on the upper end surface of the described placing frame (3). A limiting cylinder (33) extending in the vertical direction is arranged inside the limiting groove (32).

3. The stamping equipment for a spline drive flange according to claim 2, characterized in that: The limiting cylinder (33) is composed of four limiting arc plates (34). A clearance groove (35) corresponding to the limiting arc plate (34) is opened on the side wall of the limiting groove (32). A return spring rod (36) is installed between the inner wall of the clearance groove (35) and the corresponding limiting arc plate (34). A pressing rod (37) corresponding to the limiting cylinder (33) is installed on the lower end surface of the clamping block (42), and the lower end surface of the pressing rod (37) is provided with an annular inclined surface.

4. The stamping equipment for a spline drive flange according to claim 1, characterized in that: A plurality of linkage teeth (38) are evenly installed on the circumferential surface of the placement frame (3); a driving motor (39) is installed on the front side of the upper end face of the stamping base (1) through a motor seat; and a driving gear (30) matched with the linkage teeth (38) is installed on the output shaft of the driving motor (39).

5. The stamping equipment for a spline drive flange according to claim 1, characterized in that: A return plate (61) is provided inside the punching groove (6), and a return spring rod (62) is installed between the return plate (61) and the bottom of the punching groove (6).

6. The stamping equipment for a spline drive flange according to claim 1, characterized in that: The side of the locking plate (315) close to the clamping block (42) is configured as an inwardly concave arc structure.

7. The stamping equipment for a spline drive flange according to claim 1, characterized in that: The linkage groove (312) is composed of a circular guide groove (318) and engaging grooves (319) symmetrically arranged on the front and rear sides of the guide groove (318).

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