A convenient maintenance automobile parts stamping device

Abstract

The present invention belongs to the technical field of automobile parts stamping and forming, and discloses an automobile parts stamping device which is easy to maintain, comprising a first stamping die and a second stamping die which can be closed along a second direction, and when closed, a cavity is formed between the first stamping die and the second stamping die, and the second stamping die comprises: a die base, and a mounting groove is provided on the side facing the first stamping die; N assemblies which can be moved synchronously and arranged in an array in the mounting groove, N≥2, and the movement comprises movement in a first direction and movement in a second direction, the first direction is perpendicular to the second direction, and the movement in the first direction can make the N assemblies approach each other or move away from each other; a groove is provided on the inner side of each assembly facing the center of the mounting groove, and the N grooves are combined to form a stamping groove, and the cavity is confined in the stamping groove; in summary, the discharge of the formed parts can be automatically realized based on the movable assembly.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile part stamping and forming, and in particular relates to an automobile part stamping device which is convenient to maintain. Background Art

[0002] Stamping is a forming method that relies on a stamping device and a stamping die to apply external force to plates, strips, tubes and profiles to cause them to undergo plastic deformation or separation, thereby obtaining a workpiece (stamping part) of the desired shape and size.

[0003] At present, when processing automobile parts, a stamping device including a split upper die and a lower die is mostly used. However, for automobile parts with existing punched groove structures, the corresponding stamping die cavity is in a concave state. Under this cavity, it is inconvenient to remove the parts after stamping. In addition, during long-term stamping processing, the stamping die will be damaged to a certain extent. Therefore, the stamping die needs to be regularly inspected and repaired and replaced. The replacement of existing molds requires repeated disassembly and assembly of multiple bolts, and mold correction and positioning, which is complicated. Summary of the invention

[0004] In view of this, in order to solve the problems raised in the above background technology, the purpose of the present invention is to provide an automobile parts stamping device which is easy to maintain.

[0005] To achieve the above object, the present invention provides the following technical solution: a maintenance-friendly automobile parts stamping device, comprising a first stamping die and a second stamping die that can be closed along a second direction, and when closed, a cavity is formed between the first stamping die and the second stamping die, and the second stamping die comprises:

[0006] A die base, wherein a mounting groove is provided on a side of the die base facing the first stamping die;

[0007] N synchronously movable assemblies arranged in an array in the mounting slot, N ≥ 2, and the movement includes movement in a first direction and movement in a second direction, the first direction is perpendicular to the second direction, and the movement in the first direction can make the N assemblies approach each other or move away from each other;

[0008] A groove is provided on the inner side of each assembly toward the center of the installation groove, and N grooves are combined to form a stamping groove, and the cavity is defined in the stamping groove.

[0009] Preferably, N movable plates are arranged in an array on one side of the die base facing the first stamping die, the movable plates are movable in the second direction, and the movable plates are slidably connected to the end of the assembly along the first direction.

[0010] Preferably, N elastic telescopic rods are arranged in an array inside the mold base, the elastic telescopic rods are telescopic along a first direction, and a slider is fixed to the telescopic end of the elastic telescopic rod, and the slider is slidably connected to the outer side of the assembly along a second direction; an inclined surface is provided in the mounting groove, the inclined surface is in contact with the bottom of the assembly, and the assembly is synchronously moved in the first direction and the second direction through the cooperation of the moving plate, the telescopic rod and the inclined surface.

[0011] Preferably, the movable plate includes a fixed plate and a movable plate that are slidably matched along a first direction, a sliding groove is provided on the movable plate on a side facing the first stamping die, one end of the fixed plate extends into the sliding groove, and the depth of the sliding groove does not exceed the thickness of the fixed plate; a first spring and a guide rod for connecting the movable plate and the fixed plate are provided in the sliding groove, the elastic force of the elastic telescopic rod is greater than the maximum elastic force of the first spring, and the guide rod is located on one side of the first spring and slidably matched with the fixed plate; the assembly is slidably connected to a side of the movable plate away from the sliding groove, and a baffle is fixed on the side of the movable plate away from the sliding groove, and the farthest distance between the baffle and the assembly is less than the moving distance of the assembly in the first direction.

[0012] Preferably, a detachable sliding connection is formed between the movable plate and the assembly by means of the cooperation of a slide groove and a slide rail; the elastic telescopic rod slides through the mold base along a first direction, and the elastic telescopic rod comprises an outer rod, a second spring and an inner rod connected in sequence; the outer rod is a threaded rod, and two limiting rings are screwed and sleeved on the outer rod, and the two limiting rings are respectively limited to the inner and outer sides of the mold base; the second spring and one end of the inner rod are both limited inside the outer rod, and one end of the inner rod away from the second spring is fixed to the slider.

[0013] Preferably, a third spring is connected between the die base and the movable plate, and when the first stamping die and the second stamping die are closed, the first stamping die squeezes the third spring through the movable plate.

[0014] Preferably, the first stamping die comprises N movable limiting rods arranged in an array, the limiting rods correspond to the movable plates one by one, and during the closing process of the first stamping die and the second stamping die, the limiting rods push the movable plate to approach the die base.

[0015] Preferably, the first stamping die comprises:

[0016] A die head, wherein when the first stamping die and the second stamping die are closed, the die head is located in the stamping groove, and the cavity is defined between the inner wall of the stamping groove and the outer wall of the die head;

[0017] A punch rod can drive the die head to move in a second direction.

[0018] Preferably, a limiting groove is provided on the punching rod, a limiting plate is slidably sleeved on the punching rod, a fourth spring is connected between the limiting plate and the die head, and the elastic force of the fourth spring is greater than the maximum elastic force of the third spring; the limiting rod is an L-shaped structure, a fifth spring is connected between the limiting rod and the limiting plate, and the end of the limiting rod away from the movable plate can slide along the first direction through the limiting plate and engage in the limiting groove.

[0019] Preferably, a mounting frame is fixed on the die base on a side facing the first stamping die, N guide members are arranged in an array on the mounting frame, and during the closing process of the first stamping die and the second stamping die, the limiting rod is disengaged from the limiting groove along the first direction through the guide member.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] (1) In the present invention, a stamping groove is formed by a plurality of movable assemblies, and the parts are stamped and formed in the stamping groove. Thus, the molded parts can be automatically discharged based on the movable assembly, thereby preventing the molded parts from sticking to the inner wall of the assembly, thereby facilitating the removal of the molded parts.

[0022] (2) For the above-mentioned assembly, corresponding structures such as a movable plate, an elastic telescopic rod and an inclined surface are provided, thereby stably realizing the synchronous movement of the assembly in the first direction and the second direction, thereby ensuring that the molded part can be effectively separated from the assembly.

[0023] (3) The movable plate is designed as a retractable split structure, and a baffle is provided at the bottom of the movable plate. This makes it convenient to support the profile before stamping. It makes it convenient to use the movable plate to limit the position of the molded parts during the dispersed movement of the assembly, thereby effectively preventing the molded parts from sticking to the inner wall of any assembly. It makes it convenient to drive the entire movable plate to retract after the assembly has completed its movement, thereby effectively separating the movable plate from the molded parts.

[0024] (4) The movable plate and the assembly are configured to be detachably slidably connected. The outer rod of the elastic telescopic rod slides through the interior of the mold base, and two inner and outer limiting rings for limiting the position are screwed together on the outer rod. Thus, the entire assembly can be disassembled by rotating the outer limiting ring, thereby making it more convenient to replace and repair the mold in the entire device. In addition, the mold base does not need to be replaced, so that the replacement and maintenance of the entire mold does not require re-correction and positioning, and the operation is more convenient.

[0025] (5) The movable plate and assembly are driven to move by a limit rod, and the limit rod is detachably connected to the punch rod. Specifically, before the die head is inserted into the punching groove, the punching rod can drive the limit rod and the die head to move synchronously. After the assembly is assembled, the limit rod will be separated from the punch rod based on the limitation of the guide part, thereby effectively avoiding the interference of the limit rod on the punching of the die head. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the present invention when the mold is closed;

[0027] Figure 2 It is a schematic diagram of the structure of the present invention when the mold is opened;

[0028] Figure 3 for Figure 2 A in the enlarged view;

[0029] Figure 4 It is a schematic diagram of the structure of the assembly and the elastic telescopic rod in the present invention when they are matched;

[0030] Figure 5 It is a structural exploded diagram of the movable plate in the present invention;

[0031] Figure 6 It is a structural schematic diagram of the guide member in the present invention;

[0032] Figure 7 It is a schematic diagram of the structure of the elastic telescopic rod in the present invention;

[0033] In the figure: die base 1; assembly 2; movable plate 3; fixed plate 31; movable plate 32; first spring 33; guide rod 34; baffle 35; third spring 4; limit rod 5; die head 6; punch rod 7; limit plate 71; limit groove 72; fourth spring 73; fifth spring 74; guide member 8; elastic telescopic rod 9; outer rod 91; second spring 92; inner rod 93; limit ring 94; slider 95. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the 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 creative work are within the scope of protection of the present invention.

[0035] Example 1

[0036] See also Figure 1-Figure 6As shown, in this embodiment, a maintenance-friendly automobile parts stamping device is provided, which includes a first stamping die and a second stamping die that can be closed along a second direction, and when closed, a cavity is formed between the first stamping die and the second stamping die.

[0037] The first stamping die comprises: a die head 6 movable along the second direction;

[0038] The second stamping die includes:

[0039] A die base 1, wherein a mounting groove is provided on a side of the die base 1 facing the first punching die;

[0040] N synchronously movable assemblies 2 are arranged in an array in the mounting groove, N≥2, and the movement includes movement in a first direction and movement in a second direction, the first direction is perpendicular to the second direction, and the movement in the first direction can make the N assemblies 2 approach each other or move away from each other;

[0041] A groove is provided on the inner side of each assembly 2 toward the center of the installation groove, and N grooves are combined to form a stamping groove, and the cavity is defined between the inner wall of the stamping groove and the outer wall of the die head 6.

[0042] Combined with the above Figure 1 and Figure 2 It can be seen that in this embodiment, regarding the movement of the assembly 2, the following implementable structure is provided: N movable plates 3 are arranged in an array on one side of the mold base 1 facing the first stamping die, the movable plates 3 can move in the second direction, and the movable plates 3 are slidably connected to the end of the assembly 2 along the first direction.

[0043] Specifically, regarding the movement of the movable plate 3 in the second direction;

[0044] In one embodiment: a first electric push rod may be provided, and the first electric push rod is connected between the moving plate 3 and the mold base 1;

[0045] In another embodiment, a third spring 4 may be provided, and the third spring 4 is connected between the die base 1 and the movable plate 3 . When the first punching die and the second punching die are closed, the first punching die presses the third spring 4 through the movable plate 3 .

[0046] Specifically, regarding the sliding between the moving plate 3 and the assembly 2;

[0047] In one embodiment, a second electric push rod is fixed on the moving plate 3 , and a driving end of the second electric push rod is connected to the assembly 2 .

[0048] In another embodiment, an elastic telescopic rod 9 is provided in the mold base 1, the elastic telescopic rod 9 is telescopic along a first direction, and a slider 95 is fixed to the telescopic end of the elastic telescopic rod 9, and the slider 95 is slidably connected to the outer side of the assembly 2 along a second direction.

[0049] Further, regarding the moving drive of the assembly 2, the following implementable structure is provided:

[0050] First, N+1 punching rods 7 are provided, specifically, the N punching rods 7 respectively drive the N movable plates 3 to move in the second direction, and one punching rod 7 is used to drive the die head 6 to move in the second direction.

[0051] Second, a punching rod 7 is provided, and in this embodiment:

[0052] The die head 6 is connected to the end of the punch rod 7;

[0053] An inclined surface is provided in the installation groove, and the inclined surface contacts the bottom of the assembly 2;

[0054] A limiting groove 72 is provided on the punching rod 7, a limiting plate 71 is slidably sleeved on the punching rod 7, a fourth spring 73 is connected between the limiting plate 71 and the die head 6, the elastic force of the fourth spring 73 is greater than the maximum elastic force of the third spring 4, and N movable limiting rods 5 are arranged in an array on the limiting plate 71, the limiting rods 5 correspond to the movable plate 3 one by one, and the limiting rods 5 are L-shaped structures. Specifically, a fifth spring 74 is connected between the limiting rod 5 and the limiting plate 71, and the end of the limiting rod 5 away from the movable plate 3 can slide along the first direction to penetrate the limiting plate 71 and be engaged in the limiting groove 72.

[0055] A mounting frame is fixed on the die base 1 on the side facing the first stamping die, and N guide members 8 are arranged in an array on the mounting frame. During the closing process of the first stamping die and the second stamping die, the limiting rod 5 is separated from the limiting groove 72 along the first direction through the guide member 8.

[0056] In summary, the principle of using the punching device disclosed in this embodiment to punch automobile parts is as follows:

[0057] (Take the cooperation of the third spring 4, the elastic telescopic rod 9 and the one punching rod 7 as an example)

[0058] Before stamping, the first stamping die and the second stamping die are in Figure 2 In the mold opening state shown, based on the limitation of the third spring 4, the movable plate 3 and the mold base 1 are kept at the farthest distance. In this position, the profile to be stamped can be placed on the platform formed by N movable plates 3. At the same time, the elastic telescopic rod 9 remains in a retracted state, and the N assemblies 2 are separated from each other under the limitation of the N elastic telescopic rods 9; and the limit rod 5 is positioned above the guide member 8, and one end of the limit rod 5 is ensured to be inserted into the limit groove 72 under the limitation of the fifth spring 74. The above preferred guide member 8, combined with Figure 7It can be seen that the guide member 8 includes a cantilever frame a fixed to the mounting frame, a guide plate b fixed to the end of the cantilever frame a, and a trapezoidal plate c fixed to one side of the guide plate b. The trapezoidal plate c and the cantilever frame a are located on the same side, and the limit rod 5 is slidably matched with the trapezoidal plate c. Figure 1 and Figure 2 It can be seen that a matching groove is provided on the limiting rod 5, and when the limiting rod 5 is at the initial position of the mold opening state, the side where the inclined surface of the trapezoidal plate c is located is located in the matching groove.

[0059] During stamping, based on the engagement of the limit rod 5 with the limit groove 72, one stamping rod 7 drives the limit rod 5 and the die head 6 to move synchronously in the direction of the die base 1. During this process, the limit rod 5 gradually pushes the moving plate 3 and compresses the third spring 4. At the same time, under the guidance of the trapezoidal plate c in the guide member 8, the N limit rods 5 are moved away from each other in the first direction, thereby ensuring that the limit rod 5 can gradually withdraw from the limit groove 72, and the fifth spring 74 is also stretched. During the above-mentioned stamping, as the moving plate 3 approaches the die base 1, the assembly 2 is pushed to move into the installation groove, and the N assembly 2 approaches each other in the first direction under the guidance of the inclined surface in the installation groove. At this time, the N assembly 2 realizes combined movement, and the elastic telescopic rod 9 is stretched (elongated).

[0060] When the movable plate 3 moves to the closest distance to the mold base 1 ( Figure 1 The limiting rod 5 just completely withdraws from the limiting groove 72. In this state, based on the limitation of the fourth spring 73, the third spring 4 is stably maintained in a compressed state. At the same time, the punching rod 7 continues to drive, thereby driving the die head 6 to punch the profile alone and deform the profile to Figure 1 In the above process, with the separate stamping of the die head 6, the distance between the limit plate 71 and the die head 6 increases, thereby the fourth spring 73 is stretched and the elastic force increases, thereby ensuring that the limit rod 5 can press the movable plate 3 more stably.

[0061] In addition, in this embodiment, the principle of removing the parts after stamping is as follows:

[0062] As the punch rod 7 moves back, the die head 6 is driven to withdraw from the punching groove. During this process, the stability of the overall assembly 2 is maintained based on the limitation of the fourth spring 73;

[0063] When the fourth spring 73 retracts to the initial state, the punching rod 7 continues to move back. At this time, the limitation based on the die head 6 will drive the limit plate 71 and the limit rod 5 to move back synchronously. During the moving process at this stage, with the rebound of the fifth spring 74, the limit rod 5 can be reinserted into the limit groove 72; at the same time, the movable plate 3 is driven away from the die base 1 under the rebound of the third spring 4, thereby driving the corresponding assembly 2 to move; specifically, through the cooperation of the movable plate 3, the telescopic rod 9 and the inclined surface, the assembly 2 is moved synchronously in the first direction and the second direction, thereby making the assembly 2 synchronously detached from the side wall and the bottom wall of the molded part, and also pushing the molded part out of the mounting groove, thereby facilitating the removal of the molded part.

[0064] Example 2

[0065] This embodiment is a preferred embodiment of the above embodiment 1. Specifically, Figure 4 and Figure 5 It can be seen that the movable plate 3 and the assembly 2 form a detachable sliding connection by means of the cooperation of the slide groove and the slide rail; wherein the slide groove and the slide rail are both of a structure in which the inside is larger and the outside is smaller, thereby effectively preventing the assembly 2 from falling off.

[0066] Further, please combine Figure 7 As shown, the elastic telescopic rod 9 slides along the first direction through the mold base 1, and the elastic telescopic rod 9 includes an outer rod 91, a second spring 92 and an inner rod 93 connected in sequence; the outer rod 91 is a threaded rod, and two limit rings 94 are screwed and sleeved on the outer rod 91, and the two limit rings 94 are respectively limited to the inner and outer sides of the mold base 1; one end of the second spring 92 and the inner rod 93 are both limited inside the outer rod 91, and the end of the inner rod 93 away from the second spring 92 is fixed to the slider 95.

[0067] As can be seen from the above, the elastic telescopic rod 9 realizes the movement drive of the assembly 2 based on the deformation of the second spring 92, and the elastic telescopic rod 9 can be pulled out from the inside of the mold base 1 by rotating and disassembling the limit ring 94 located on the outside, thereby facilitating the disassembly and replacement of the assembly 2. On the one hand, it is convenient for the maintenance of the overall stamping device, and on the other hand, the overall stamping device can be flexibly applied to the stamping of parts of different shapes.

[0068] Example 3

[0069] This embodiment is a preferred embodiment of the above-mentioned embodiment 1 or embodiment 2. Specifically, Figure 3 It can be seen that the movable plate 3 includes a fixed plate 31 and a movable plate 32 which are slidably matched along the first direction.

[0070] A slide groove is provided on the side of the movable plate 32 facing the first stamping die, one end of the fixed plate 31 extends into the slide groove, and the depth of the slide groove does not exceed the thickness of the fixed plate 31;

[0071] A first spring 33 and a guide rod 34 are provided in the slide groove for connecting the movable plate 32 and the fixed plate 31. The elastic force of the elastic telescopic rod 9 is greater than the maximum elastic force of the first spring 33. The guide rod 34 is located on one side of the first spring 33 and is slidably matched with the fixed plate 31.

[0072] The assembly 2 is slidably connected to the side of the movable plate 32 away from the slide slot, and a baffle 35 is fixed on the side of the movable plate 32 away from the slide slot. The maximum distance between the baffle 35 and the assembly 2 is less than the moving distance of the assembly 2 in the first direction.

[0073] In summary:

[0074] After the stamping is completed, as the movable plate 3 moves back, the N assemblies 2 are separated from each other. At the same time, the movable plate 32 contacts the edge of the part under the limitation of the first spring 33, thereby ensuring that the part is always positioned at the center of the installation groove, and can also effectively prevent any assembly 2 from sticking to the molded part.

[0075] As the N assemblies 2 move away from each other, the assemblies 2 gradually contact the baffle 35, and continue to drive the assembly 2 to move under the retraction of the elastic telescopic rod 9, so that the assembly 2 drives the baffle 35 to move, and the baffle 35 drives the movable plate 32 to approach the fixed plate 31 and compress the first spring 33; based on this, the movable plate 32 is automatically separated from the molded part. Preferably, the contact area between the movable plate 32 and the molded part is smaller than the contact area between the assembly 2 and the molded part.

[0076] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automobile parts stamping device with convenient maintenance, comprising a first stamping die and a second stamping die that can be closed along a second direction, and when closed, a cavity is formed between the first stamping die and the second stamping die, characterized in that: The second stamping die comprises: A die base (1), wherein a mounting groove is provided on a side of the die base (1) facing the first punching die; N synchronously movable assemblies (2) are arranged in an array in the installation slot, N≥2, and the movement includes movement in a first direction and movement in a second direction, the first direction is perpendicular to the second direction, and the movement in the first direction can make the N assemblies (2) approach each other or move away from each other; A groove is provided on the inner side of each assembly (2) facing the center of the installation groove, and the N grooves are combined to form a stamping groove, and the cavity is defined in the stamping groove; N movable plates (3) are arranged in an array on one side of the die base (1) facing the first punching die, the movable plates (3) being movable in the second direction, and the movable plates (3) are slidably connected to the end of the assembly (2) along the first direction; N elastic telescopic rods (9) are arranged in an array inside the mold base (1), the elastic telescopic rods (9) are telescopic in a first direction, and a slider (95) is fixed to the telescopic end of the elastic telescopic rod (9), and the slider (95) is slidably connected to the outer side of the assembly (2) in a second direction; An inclined surface is provided in the installation groove, the inclined surface contacts the bottom of the assembly (2), and the assembly (2) is moved synchronously in the first direction and the second direction through the cooperation of the movable plate (3), the telescopic rod (9) and the inclined surface.

2. The automobile parts stamping device with easy maintenance according to claim 1 is characterized in that: The movable plate (3) comprises a fixed plate (31) and a movable plate (32) which are slidably matched along a first direction; A sliding groove is provided on the movable plate (32) on a side facing the first punching die, one end of the fixed plate (31) extends into the sliding groove, and the depth of the sliding groove does not exceed the thickness of the fixed plate (31); A first spring (33) and a guide rod (34) for connecting the movable plate (32) and the fixed plate (31) are provided in the slide groove, the elastic force of the elastic telescopic rod (9) is greater than the maximum elastic force of the first spring (33), and the guide rod (34) is located on one side of the first spring (33) and is slidably matched with the fixed plate (31); The assembly (2) is slidably connected to a side of the movable plate (32) away from the slide slot, and a baffle (35) is fixed to the side of the movable plate (32) away from the slide slot, wherein the maximum distance between the baffle (35) and the assembly (2) is less than the moving distance of the assembly (2) in the first direction.

3. The automobile parts stamping device with easy maintenance according to claim 1 is characterized in that: The movable plate (3) and the assembly (2) are connected in a detachable sliding manner by means of the cooperation of the slide groove and the slide rail; The elastic telescopic rod (9) slides along a first direction and penetrates the mold base (1), and the elastic telescopic rod (9) comprises an outer rod (91), a second spring (92) and an inner rod (93) which are connected in sequence; the outer rod (91) is a threaded rod, and two limiting rings (94) are screwed and sleeved on the outer rod (91), and the two limiting rings (94) are respectively limited to the inner and outer sides of the mold base (1); one end of the second spring (92) and the inner rod (93) are both limited inside the outer rod (91), and one end of the inner rod (93) away from the second spring (92) is fixed to the slider (95).

4. The automobile parts stamping device with easy maintenance according to claim 1 is characterized in that: A third spring (4) is connected between the die base (1) and the movable plate (3), and when the first stamping die and the second stamping die are closed, the first stamping die presses the third spring (4) through the movable plate (3).

5. The automobile parts stamping device with easy maintenance according to claim 4 is characterized in that: The first stamping die comprises N movable limiting rods (5) arranged in an array, the limiting rods (5) corresponding one to one with the movable plate (3), and during the closing process of the first stamping die and the second stamping die, the limiting rods (5) push the movable plate (3) towards the die base (1).

6. The automobile parts stamping device with easy maintenance according to claim 5, characterized in that: The first stamping die comprises: A die head (6), wherein when the first stamping die and the second stamping die are closed, the die head (6) is located in the stamping groove, and the mold cavity is defined between the inner wall of the stamping groove and the outer wall of the die head (6); A punch rod (7) can drive the die head (6) to move in a second direction.

7. The automobile parts stamping device with easy maintenance according to claim 6 is characterized in that: A limiting groove (72) is provided on the punching rod (7), a limiting plate (71) is slidably sleeved on the punching rod (7), a fourth spring (73) is connected between the limiting plate (71) and the die head (6), and the elastic force of the fourth spring (73) is greater than the maximum elastic force of the third spring (4); the limiting rod (5) is an L-shaped structure, a fifth spring (74) is connected between the limiting rod (5) and the limiting plate (71), and an end of the limiting rod (5) away from the movable plate (3) can slide along a first direction to penetrate the limiting plate (71) and be engaged in the limiting groove (72).

8. The automobile parts stamping device with easy maintenance according to claim 7 is characterized in that: A mounting frame is fixed on the die base (1) on a side facing the first punching die, and N guide members (8) are arranged in an array on the mounting frame. During the closing process of the first punching die and the second punching die, the limiting rod (5) is separated from the limiting groove (72) along the first direction by the guiding member (8).

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