Injection mold for automobile air spring chassis suspension

Abstract

The present invention discloses an injection mold for an automobile air spring chassis suspension, relating to the technical field of injection molds, comprising a workbench and a gantry, a lower injection mold being arranged on the top surface of the workbench, a hydraulic cylinder being arranged on the top of the gantry, the movable end of the hydraulic cylinder being fixedly connected to a sliding plate, and an upper injection mold being coordinated with the lower injection mold being arranged at the bottom of the sliding plate; an ejection mechanism and an auxiliary mechanism being arranged in the workbench, the gantry being symmetrically provided with rectangular openings, and a self-locking part being arranged in the rectangular opening; the ejection mechanism comprising a connecting plate 1 being slidably arranged in the workbench, a ejector rod being arranged on the top surface of the connecting plate 1, the ejector rod being movably penetrated into a cavity in the lower injection mold and fixedly connected to a ejector plate 2, and a lifting part being arranged in the workbench; the present invention facilitates ejecting the air spring chassis suspension in the lower injection mold through the use of the ejection mechanism, thereby facilitating the blanking of the air spring chassis suspension, and the operation is simple and convenient, thereby improving the working efficiency of blanking the air spring chassis suspension.

Description

Technical Field

[0001] The invention relates to the technical field of injection molds, in particular to an injection mold for an automobile air spring chassis suspension. Background Art

[0002] An injection mold is a tool for producing plastic products. It is also a tool that gives plastic products a complete structure and precise dimensions. Injection molding is a processing method used in the mass production of certain parts with complex shapes. Specifically, it refers to the process of injecting heated and melted plastic into the mold cavity under high pressure by an injection molding machine, and obtaining a molded product after cooling and solidification. Injection molds are required for the production of automobile air spring chassis suspensions. However, when using existing injection molds, the automobile air spring chassis suspension will fall into the injection mold after production. The automobile air spring chassis suspension has no grip, which causes workers to slip when taking the automobile air spring chassis suspension, making it difficult to remove the automobile air spring chassis suspension, affecting the efficiency of the automobile air spring chassis suspension blanking, and further reducing the efficiency of automobile air spring chassis suspension production. Therefore, an injection mold for automobile air spring chassis suspension is proposed to solve the above problems. Summary of the Invention

[0003] The purpose of the present invention is to solve the above problems and to provide an injection mold for an automobile air spring chassis suspension.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] The injection mold for the automobile air spring chassis suspension includes a workbench and a gantry. A lower injection mold is provided on the top of the workbench. A hydraulic cylinder is provided on the top of the gantry. A sliding plate is fixed to the movable end of the hydraulic cylinder. An upper injection mold is provided at the bottom of the sliding plate to cooperate with the lower injection mold.

[0006] The workbench is provided with an ejection mechanism for ejecting the chassis suspension and an auxiliary mechanism for assisting the chassis suspension to be disengaged. The gantry is symmetrically provided with rectangular openings, and the rectangular openings are provided with self-locking parts.

[0007] The ejection mechanism includes a connecting plate 1 slidably arranged in the workbench and a push rod arranged on the top surface of the connecting plate 1. The push rod movably penetrates into the cavity of the lower injection mold and is fixedly connected to the push plate 2. A placement groove is provided on the bottom surface of the cavity of the lower injection mold to cooperate with the push plate 2. A lifting member acting on the connecting plate 1 is provided in the workbench.

[0008] Preferably, the lifting member includes a connecting shaft 2 rotatably arranged on the rear end surface of the workbench, a bevel gear 2 at one end of the connecting shaft 2 and a micro motor at the other end, a threaded sleeve fixedly connected to the connecting plate 1, a connecting shaft 1 slidingly arranged in the threaded sleeve, and the connecting shaft 1 rotatably arranged with the workbench, a bevel gear 1 meshing with the bevel gear 2 is provided on the outer wall of the connecting shaft 1, an external thread is provided on the outer wall of the connecting shaft 1 to cooperate with the threaded sleeve, and a reset member is provided at the bottom of the connecting plate 1.

[0009] Preferably, the reset member comprises an annular plate fixedly connected to the outer wall of the bottom of the threaded sleeve, and an extrusion spring is sleeved on the outer wall of the connecting shaft between the annular plate and the workbench.

[0010] Preferably, the auxiliary mechanism includes a torsion spring shaft 1 rotatably arranged on the workbench and a knocking block symmetrically arranged on the torsion spring shaft 1, a rubber pad is provided on the top surface of the knocking block, a notch is provided on the knocking block to cooperate with the connecting shaft 2, and a linkage part is provided on the torsion spring shaft 1.

[0011] Preferably, the linkage member includes a gear arranged at one end of the torsion spring shaft, and an incomplete gear meshing with the gear is provided on the second outer wall of the connecting shaft.

[0012] Preferably, the incomplete gear includes a circular plate arranged on the connecting shaft 2, a plurality of U-shaped clamping rings evenly arranged on the outer wall of the circular plate and a torsion spring shaft 2 rotatably arranged in the U-shaped clamping ring, and the outer wall of the torsion spring shaft 2 is provided with movable teeth that cooperate with the gear.

[0013] Preferably, the self-locking part includes a locking block slidably arranged in a rectangular opening, a connecting plate 2 arranged on the top of the locking block, a return spring and a protective shell, and strip openings are symmetrically opened on the side of the workbench, and the connecting plate 1 movably passes through the strip opening and extends into the protective shell, and a top plate 1 is provided on the top of the connecting plate 1.

[0014] Preferably, one side of the top of the top plate is an inclined surface, and the surface of the locking block opposite to the inclined surface of the top plate is also an inclined surface.

[0015] Preferably, a mounting plate is fixedly connected to the fixed end of the hydraulic cylinder, and a plurality of pillars are provided between the mounting plate and the workbench.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0017] 1. The present invention facilitates the ejection of the air spring chassis suspension in the lower injection mold by using an ejection mechanism, thereby facilitating the blanking of the air spring chassis suspension. The operation is simple and convenient, and the working efficiency of the blanking of the air spring chassis suspension is improved.

[0018] 2. The present invention realizes the opening or closing of the self-locking part by raising and lowering the connecting plate in the ejection mechanism, which facilitates the fixing of the upper injection mold after it is reset, and avoids the phenomenon of the upper injection mold pressing down and injuring the hands of personnel when manually removing materials, thereby facilitating the protection of personnel and improving the safety of the injection mold;

[0019] 3. The present invention drives the auxiliary mechanism to work by rotating the connecting shaft through the linkage part, which is convenient for knocking the bottom of the lower injection mold to vibrate the lower injection mold, so that the liquid can fill the entire cavity of the lower injection mold and the upper injection mold during injection, and the bubbles in the liquid can be discharged to avoid voids in the manufactured product, thereby improving the quality of the product; at the same time, knocking can also make the product separate from the inner wall of the cavity of the lower injection mold and the upper injection mold after it is finalized, avoiding the phenomenon of the product sticking to the inner wall of the cavity of the lower injection mold and the upper injection mold, which is beneficial to the demolding of the air spring chassis suspension, and further beneficial to the blanking of the air spring chassis suspension. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It shows a schematic structural diagram of a front view provided by an embodiment of the present invention;

[0021] Figure 2 It shows a schematic structural diagram of a rear viewing angle provided by an embodiment of the present invention;

[0022] Figure 3 A schematic diagram of a cross-sectional structure according to a front view perspective provided by an embodiment of the present invention is shown;

[0023] Figure 4 yes Figure 3 A partial enlarged view of the middle figure;

[0024] Figure 5 It shows a schematic structural diagram of a first viewing angle of an ejection mechanism provided by an embodiment of the present invention;

[0025] Figure 6 It shows a structural schematic diagram of the ejection mechanism provided by an embodiment of the present invention from a second viewing angle;

[0026] Figure 7 A schematic structural diagram of a reset element according to an embodiment of the present invention is shown;

[0027] Figure 8 A structural schematic diagram of an incomplete gear provided according to an embodiment of the present invention is shown.

[0028] Legend:

[0029] 1. Workbench; 2. Gantry; 3. Protective shell; 4. Lower injection mold; 5. Upper injection mold; 6. Sliding plate; 7. Hydraulic cylinder; 8. Mounting plate; 9. Pillar; 10. Top plate 1; 11. Connecting plate 1; 12. Strip opening; 13. Rubber pad; 14. Placement slot; 15. Top plate 2; 16. Gear; 17. Torsion spring shaft 1; 18. Micro motor; 19. Push rod; 20. Extrusion spring; 21. Connecting plate 2; 22. Return spring; 23. Locking block; 24. Rectangular opening; 25. Notch; 26. Knocking block; 27. Ring plate; 28. Connecting shaft 1; 29. Bevel gear 1; 30. Bevel gear 2; 31. Connecting shaft 2; 32. Circular plate; 33. External thread; 34. Threaded sleeve; 35. Movable teeth; 36. Torsion spring shaft 2; 37. U-shaped clamping ring DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments 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 any creative efforts shall fall within the scope of protection of the present invention.

[0031] See also Figure 1-8 , the present invention provides a technical solution:

[0032] The injection mold for an automobile air spring chassis suspension comprises a workbench 1 and a gantry 2 disposed on the workbench 1. A lower injection mold 4 (known in the prior art) is disposed on the top surface of the workbench 1. A hydraulic cylinder 7 is disposed on the top of the gantry 2 for raising and lowering an upper injection mold 5, thereby closing the upper and lower injection molds 5 and 4. A sliding plate 6 is fixedly connected to the movable end of the hydraulic cylinder 7. The upper injection mold 5 (known in the prior art) is disposed at the bottom of the sliding plate 6 and cooperates with the lower injection mold 4.

[0033] The workbench 1 is provided with an ejection mechanism for ejecting the chassis suspension and an auxiliary mechanism for assisting the chassis suspension to disengage; by using the ejection mechanism, it is convenient to eject the air spring chassis suspension in the lower injection mold 4, thereby facilitating the blanking of the air spring chassis suspension, the operation is simple and convenient, and the working efficiency of the air spring chassis suspension blanking is improved; by using the auxiliary mechanism, it is convenient to knock on the bottom of the lower injection mold 4 to make the lower injection mold 4 vibrate, so that the liquid can fill the entire cavity of the lower injection mold 4 and the upper injection mold 5 when injecting the liquid, and can discharge the bubbles in the liquid to avoid the product containing cavities, thereby improving High product quality; at the same time, knocking can also make the product separate from the inner wall of the cavity of the lower injection mold 4 and the upper injection mold 5 after being finalized, avoiding the phenomenon of product sticking to the inner wall of the cavity of the lower injection mold 4 and the upper injection mold 5, which is beneficial to the demoulding of the air spring chassis suspension, and further beneficial to the unloading of the air spring chassis suspension; rectangular openings 24 are symmetrically opened on the gantry 2, and self-locking parts are provided in the rectangular openings 24; through the use of self-locking parts, it is convenient to fix the upper injection mold 5 after it is reset, avoiding the phenomenon of the upper injection mold 5 pressing down and injuring the hands of the personnel when manually taking the material, which is convenient for protecting the personnel and improving the safety of the injection mold.

[0034] The ejection mechanism includes a connecting plate 11 slidably arranged in the workbench 1 and a push rod 19 arranged on the top surface of the connecting plate 11. The push rod 19 movably penetrates into the cavity of the lower injection mold 4 and is fixedly connected to the top plate 2 15. A placement groove 14 is provided on the bottom surface of the cavity of the lower injection mold 4 to cooperate with the top plate 2 15, and after the top plate 2 15 is in the placement groove 14, the top surface of the top plate 2 15 is coplanar with the top surface of the placement groove 14; a lifting member acting on the connecting plate 11 is provided in the workbench 1; through the use of the lifting member, it is convenient to realize the lifting and lowering of the connecting plate 11, thereby realizing the lifting of the air spring chassis suspension, which is convenient for unloading the air spring chassis suspension; at the same time, after the air spring chassis suspension is lifted, the locking block 23 in the self-locking member will be pushed to move, so as to fix the upper injection mold 5, avoid the phenomenon of the upper injection mold 5 pressing down and injuring the hands of the personnel when manually taking the material, and facilitate personnel protection.

[0035] In the present invention, the lifting member includes a connecting shaft 2 31 rotatably arranged on the rear end surface of the workbench 1, a bevel gear 2 30 is provided at one end of the connecting shaft 2 31 and a micro motor 18 at the other end, and a frame is fixedly connected to the rear end surface of the workbench 1, and the micro motor 18 is installed on the frame, which is convenient for supporting the micro motor 18, thereby ensuring the normal use of the micro motor 18; a threaded sleeve 34 is fixedly connected to the connecting plate 11, a connecting shaft 28 is slidably provided in the threaded sleeve 34, and the connecting shaft 28 is rotatably arranged with the workbench 1, and the outer wall of the connecting shaft 28 is provided with a screw thread. Bevel gear 2 30 is meshed with bevel gear 1 29, and an external thread 33 is provided on the outer wall of connecting shaft 1 28 to cooperate with the threaded sleeve 34. The external thread 33 and the threaded sleeve 34 cooperate with each other to realize the lifting and lowering of connecting plate 11, thereby realizing the lifting and lowering of top plate 2 15, and further realizing the lifting of air spring chassis suspension, thereby facilitating the unloading of air spring chassis suspension; a reset part is provided at the bottom of connecting plate 11, and through the use of the reset part, it is convenient to squeeze the annular plate 27, so that the threaded sleeve 34 returns to the external thread 33, which facilitates the lifting of connecting plate 11.

[0036] In the present invention, the reset member includes an annular plate 27 fixed to the outer wall of the bottom of the threaded sleeve 34, and an extrusion spring 20 is sleeved on the outer wall of the connecting shaft 28 between the annular plate 27 and the workbench 1. The elastic force of the extrusion spring 20 is large, which can make the threaded sleeve 34 engage with the external thread 33 on the connecting shaft 28 to move the threaded sleeve 34 upward, thereby realizing the upward movement of the connecting plate 11.

[0037] In the present invention, the auxiliary mechanism includes a torsion spring shaft 17 rotatably set on the workbench 1 and a knocking block 26 symmetrically set on the torsion spring shaft 17, wherein the torsion spring shaft 17 is composed of a shaft and a torsion spring, and the torsion spring gives the knocking block 26 a reset force; a rubber pad 13 is provided on the top surface of the knocking block 26, and a notch 25 is provided on the knocking block 26 to cooperate with the connecting shaft 2 31, and a linkage part is provided on the torsion spring shaft 17. Through the use of the linkage part, it is convenient to rotate the connecting shaft 2 31 to drive the torsion spring shaft 17 to rotate.

[0038] In the present invention, the linkage part includes a gear 16 arranged at one end of the torsion spring shaft 17, and an incomplete gear meshing with the gear 16 is provided on the outer wall of the connecting shaft 2 31. Through the mutual cooperation of the incomplete gear and the gear 16, the clearance rotation of the torsion spring shaft 17 is facilitated, thereby achieving the knocking of the lower injection mold 4 and causing the lower injection mold 4 to vibrate.

[0039] In the present invention, the incomplete gear includes a circular plate 32 arranged on the connecting shaft 2 31, a plurality of U-shaped clamping rings 37 evenly arranged on the outer wall of the circular plate 32, and a torsion spring shaft 2 36 rotatably arranged in the U-shaped clamping ring 37. The outer wall of the torsion spring shaft 2 36 is provided with movable teeth 35 that cooperate with the gear 16. Through the mutual cooperation of the movable teeth 35, the torsion spring shaft 2 36 and the U-shaped clamping ring 37, it is convenient to prevent the gear 16 from rotating when the top plate 2 15 is lifted upward, thereby preventing the torsion spring shaft 1 17 from rotating, thereby avoiding interference between the incomplete gear and the gear 16, which causes the incomplete gear to be unable to rotate.

[0040] In the present invention, the self-locking part includes a locking block 23 slidably set in the rectangular opening 24, a connecting plate 21 set on the top of the locking block 23, a return spring 22 and a protective shell 3, a strip opening 12 is symmetrically opened on the side of the workbench 1, and the connecting plate 11 is movable through the strip opening 12 and extends into the protective shell 3, and a top plate 10 is provided on the top of the connecting plate 11; through the mutual cooperation of the top plate 10 and the connecting plate 11, it is convenient to squeeze the locking block 23 when the connecting plate 11 moves upward, thereby fixing the upper injection mold 5, ensuring that the upper injection mold 5 will not move downward, and improving the safety of the injection mold; one side of the top of the top plate 10 is an inclined surface, and the surface of the locking block 23 opposite to the inclined surface of the top plate 10 is also an inclined surface, which is convenient for squeezing the locking block 23, thereby fixing the upper injection mold 5.

[0041] In the present invention, a mounting plate 8 is fixed to the fixed end of the hydraulic cylinder 7 , and a plurality of pillars 9 are provided between the mounting plate 8 and the workbench 1 to facilitate supporting the hydraulic cylinder 7 , thereby facilitating stable operation of the hydraulic cylinder 7 .

[0042] Working principle: When the present invention is working, the micro motor 18 is first started, so that the output shaft of the micro motor 18 rotates and drives the second connecting shaft 31 to rotate, and the second connecting shaft 31 drives the second bevel gear 30 and the incomplete gear to rotate;

[0043] When the bevel gear 2 30 rotates, it drives the bevel gear 1 29 to rotate, and then drives the connecting shaft 1 28 to rotate. Then, under the action of the external thread 33, the threaded sleeve 34 moves downward, and then drives the connecting plate 11 to move downward, thereby driving the push rod 19 and the top plate 2 15 to move downward, and finally the top plate 2 15 drops into the placement groove 14;

[0044] After the top plate 15 is lowered to the placement groove 14, the threaded sleeve 34 moves to the lower end of the connecting shaft 28 and separates from the external thread 33, causing the connecting shaft 28 to idle.

[0045] When the connecting plate 11 descends, it drives the top plate 10 downward, separating the top plate 10 from the locking block 23. Then, under the action of the return spring 22, the locking block 23 is driven to move, thereby moving the locking block 23 into the rectangular opening 24, thereby releasing the fixation of the upper injection mold 5.

[0046] When the incomplete gear rotates, it drives the movable teeth 35 to rotate. When the movable teeth 35 come into contact with the gear 16, the gear 16 is driven to rotate under the action of the U-shaped collar 37, thereby driving the torsion spring shaft 17 to rotate, and further driving the knocking block 26 to rotate. When all the movable teeth 35 on the incomplete gear are separated from the gear 16, the knocking block 26 is reset under the action of the torsion spring shaft 17 to knock the lower injection mold 4, thereby causing the lower injection mold 4 to vibrate.

[0047] Then, the hydraulic cylinder 7 is opened, and the sliding plate 6 is moved downward by extending the movable end of the hydraulic cylinder 7, thereby driving the upper injection mold 5 downward. Finally, the upper injection mold 5 and the lower injection mold 4 are closed, and then the liquid is injected into the cavity between the lower injection mold 4 and the upper injection mold 5.

[0048] During liquid injection, the knocking block 26 continuously knocks the lower injection mold 4, causing the lower injection mold 4 to vibrate, so that the liquid fills the entire cavity between the lower injection mold 4 and the upper injection mold 5; and after the liquid solidifies, the vibration of the lower injection mold 4 causes the air spring chassis suspension to separate from the inner wall of the cavity of the lower injection mold 4 and the upper injection mold 5, which is beneficial to the blanking of the air spring chassis suspension;

[0049] After the liquid solidifies, the telescopic end of the hydraulic cylinder 7 is contracted to drive the upper injection mold 5 to reset; then the micro motor 18 is controlled to rotate the output shaft of the micro motor 18 in the opposite direction to the direction of controlling the connection plate 11 to descend, thereby causing the connection shaft 28 to rotate in the opposite direction, and then under the action of the extrusion spring 20, the threaded sleeve 34 is brought into contact with the external thread 33, and then the threaded sleeve 34 is moved upward under the rotation of the connection shaft 28, thereby driving the ejector rod 19 and the ejector plate 2 15 to move upward, thereby lifting the air spring chassis suspension and facilitating the unloading of the air spring chassis suspension;

[0050] The connecting plate 11 moves upward, driving the top plate 10 to move upward, and then squeezes the locking block 23, so that the locking block 23 passes through the gantry 2 to fix the upper injection mold 5, thereby preventing the upper injection mold 5 from falling and injuring the worker's hands when taking the air spring chassis suspension, thereby improving the safety of the injection mold;

[0051] Among them, when the incomplete gear is reversed, after the movable teeth 35 come into contact with the teeth of the gear 16, the movable teeth 35 rotate and disengage from the teeth of the gear 16, thereby not driving the gear 16 to rotate, and further not driving the knocking block 26 to rotate.

[0052] The above description of the embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An injection mold for an automobile air spring chassis suspension, comprising a workbench (1) and a gantry (2), characterized in that: A lower injection mold (4) is provided on the top surface of the workbench (1), a hydraulic cylinder (7) is provided on the top of the gantry (2), a sliding plate (6) is fixedly connected to the movable end of the hydraulic cylinder (7), and an upper injection mold (5) that cooperates with the lower injection mold (4) is provided on the bottom of the sliding plate (6); The workbench (1) is provided with an ejection mechanism for ejecting the chassis suspension and an auxiliary mechanism for assisting the chassis suspension to disengage. The gantry (2) is symmetrically provided with rectangular openings (24), and a self-locking member is provided in the rectangular openings (24). The ejection mechanism includes a connecting plate 1 (11) slidably arranged in the workbench (1), and a push rod (19) arranged on the top surface of the connecting plate 1 (11); the push rod (19) is movable and penetrates into the cavity of the lower injection mold (4) and is fixedly connected to the push plate 2 (15); a placement groove (14) is provided on the bottom surface of the cavity of the lower injection mold (4) to cooperate with the push plate 2 (15); and a lifting member is provided in the workbench (1) to act on the connecting plate 1 (11); The lifting member includes a connecting shaft 2 (31) rotatably arranged on the rear end surface of the workbench (1), a bevel gear 2 (30) at one end of the connecting shaft 2 (31) and a micro motor (18) at the other end, a threaded sleeve (34) fixedly connected to the connecting plate 1 (11), a connecting shaft 1 (28) slidingly arranged in the threaded sleeve (34), and the connecting shaft 1 (28) rotatably arranged with the workbench (1), a bevel gear 1 (29) meshing with the bevel gear 2 (30) is provided on the outer wall of the connecting shaft 1 (28), an external thread (33) is provided on the outer wall of the connecting shaft 1 (28) in conjunction with the threaded sleeve (34), and a reset member is provided at the bottom of the connecting plate 1 (11). The reset part includes an extrusion spring. When working, the threaded sleeve moves downward under the action of the external thread, and then drives the connecting plate 1 to move downward, thereby driving the push rod and the top plate 2 to move downward, and finally causing the top plate 2 to drop into the placement groove. After the top plate 2 drops into the placement groove, the threaded sleeve moves to the lower end of the connecting shaft and separates from the external thread, causing the connecting shaft 1 to idle. After solidification, the direction of rotation of the output shaft of the micromotor is opposite to the direction of controlling the descent of the connecting plate 1, thereby causing the connecting shaft 1 to rotate in the opposite direction, and then under the action of the extrusion spring, the threaded sleeve contacts the external thread, and then the threaded sleeve moves upward under the rotation of the connecting shaft 1, thereby driving the push rod and the top plate 2 to move upward.

2. The injection mold of the automobile air spring chassis suspension according to claim 1, characterized in that: The reset member comprises an annular plate (27) fixedly connected to the outer wall of the bottom of the threaded sleeve (34), and an extrusion spring (20) is sleeved on the outer wall of the connecting shaft (28) between the annular plate (27) and the workbench (1).

3. The injection mold for the automobile air spring chassis suspension according to claim 2, characterized in that: The auxiliary mechanism comprises a torsion spring shaft (17) rotatably arranged on the workbench (1) and a knocking block (26) symmetrically arranged on the torsion spring shaft (17), a rubber pad (13) is provided on the top surface of the knocking block (26), a notch (25) is provided on the knocking block (26) to cooperate with the connecting shaft (31), and a linkage member is provided on the torsion spring shaft (17).

4. The injection mold for the automobile air spring chassis suspension according to claim 3, characterized in that: The linkage member includes a gear (16) arranged at one end of the torsion spring shaft (17), and an incomplete gear meshing with the gear (16) is provided on the outer wall of the connecting shaft (31).

5. The injection mold for the automobile air spring chassis suspension according to claim 4, characterized in that: The incomplete gear comprises a circular plate (32) arranged on the connecting shaft (31), a plurality of U-shaped collars (37) evenly arranged on the outer wall of the circular plate (32), and a torsion spring shaft (36) rotatably arranged in the U-shaped collar (37), wherein the outer wall of the torsion spring shaft (36) is provided with movable teeth (35) that cooperate with the gear (16).

6. The injection mold for the automobile air spring chassis suspension according to claim 1, characterized in that: The self-locking member comprises a locking block (23) slidably arranged in a rectangular opening (24), a connecting plate 2 (21) arranged on the top of the locking block (23), a return spring (22) and a protective shell (3); a strip opening (12) is symmetrically opened on the side of the workbench (1), and the connecting plate 1 (11) is movable through the strip opening (12) and extends into the protective shell (3); a top plate 1 (10) is provided on the top of the connecting plate 1 (11).

7. The injection mold for the automobile air spring chassis suspension according to claim 6, characterized in that: One side of the top of the top plate 1 (10) is an inclined surface, and the surface of the locking block (23) opposite to the inclined surface of the top plate 1 (10) is also an inclined surface.

8. The injection mold for the automobile air spring chassis suspension according to claim 1, characterized in that: The fixed end of the hydraulic cylinder (7) is fixedly connected to a mounting plate (8), and a plurality of pillars (9) are provided between the mounting plate (8) and the workbench (1).

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