Stamping die assembly for automobile fender

Abstract

The utility model discloses an automobile fender stamping die assembly which comprises a fixed die and a movable die located above the fixed die, a mold core is arranged at the top of the fixed die, a cavity corresponding to the mold core is formed in the bottom of the movable die, a groove is formed in the position, close to the edge, of the top of the inner wall of the cavity, and a pressing block is arranged in the groove. A movable pin vertically and fixedly connected with the pressing block is movably inserted into the top of the fixed mold; a connecting rod is fixedly connected to the top of the movable mold, a pressing plate is slidably connected to the connecting rod in a sleeving mode, and a force storage spring movably connected to the connecting rod in a sleeving mode is arranged between the pressing plate and the connecting base. The liftable pressing block is arranged at the edge of the top of the inner wall of the cavity on the movable mold, the force storage spring enables the pressing block to extrude downwards from the peripheral edge through the pressing plate and the movable pin, and the mode that the fender is extruded from the peripheral edge for demolding and discharging is adopted, so that the pressure and friction resistance between the arc-shaped fender and the periphery of the inner wall of the cavity cannot be increased; and smooth blanking is facilitated, the fender is not prone to deformation, and the follow-up finishing workload is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to stamping die technical field, concretely is a kind of automobile leaf plate stamping die assembly. BACKGROUND

[0002] Automobile leaf plate is also called fender, it refers to the covering piece of automobile body above wheel, production process includes plate cutting, stamping forming, trimming, punching and edge cutting, surface treatment and multiple steps.Plastic material and metal material are mainly used in leaf plate, and metal material leaf plate is produced by stamping metal plate through stamping die.

[0003] In prior art, after stamping, many leaf plate stamping dies are extruded downward by ejector assembly located in the middle of the top of movable die, so as to make leaf plate discharge from the cavity of movable die, but due to the overall curvature of leaf plate, the periphery of leaf plate after stamping will directly contact with the inner wall of cavity, at this time, the arc-shaped leaf plate will be slightly deformed by directly extruding downward from the middle of the top, which easily causes the increase of pressure between the periphery of leaf plate and the inner wall of cavity, increases the friction resistance of discharge, although direct extrusion can successfully discharge, but it easily causes slight deformation of leaf plate, which needs to be restored in subsequent trimming step, resulting in the increase of trimming workload, which needs to be optimized and improved. UTILITY MODEL CONTENT

[0004] In view of the deficiencies in prior art, the utility model provides a kind of automobile leaf plate stamping die assembly, to solve the problem that the leaf plate of many leaf plate stamping dies in prior art is easily deformed by the extrusion of ejector assembly located in the middle of the top of movable die.

[0005] To solve the above technical problems, the utility model provides the following technical scheme:

[0006] A kind of automobile leaf plate stamping die assembly, including fixed die and movable die located in the top of fixed die, the fixed die top is fixed with guide pillar near four corners, the movable die is slidably connected with guide pillar, the fixed die top is provided with core print, the core print one side corresponds the position of leaf plate headlamp groove and the other side two corners and is provided with the positioning seat fixed in the top of fixed die;

[0007] The position of movable die bottom corresponding to positioning seat is provided with let slot, the bottom of movable die is provided with the cavity corresponding to core print, the inner wall of cavity is provided with recess near the edge at the top, the recess is provided with pressing block, the top of fixed die is movably inserted with the movable pin vertically fixedly connected with pressing block;

[0008] The movable mold top is fixedly connected with a connecting rod, a connecting seat for connecting with a downward driving mechanism is fixed at the top of the connecting rod, a pressing plate is slidably sleeved on the connecting rod, and a force storage spring is movably sleeved on the connecting rod and arranged between the pressing plate and the connecting seat.

[0009] Preferably, the connecting rod, the force storage spring and the connecting seat are provided in multiple groups and symmetrically arranged on the pressing plate in front and back and left and right.

[0010] Preferably, the depth of the groove is the same as the thickness of the pressing block, and the bottom of the pressing block is shaped the same as the corresponding position of the top of the inner wall of the cavity.

[0011] Preferably, the movable pin is a square rod, and the movable pin is provided with a guide groove matched with the shape of the movable pin on the movable mold.

[0012] Preferably, the movable pin is a square rod, and the movable pin is provided with a guide groove matched with the shape of the movable pin on the movable mold.

[0013] Compared with the prior art, the movable mold has the following beneficial effects:

[0014] The movable mold has the following beneficial effects: BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a fixed mold plan view of the utility model;

[0016] Figure 2 It is a movable mold plan view of the utility model;

[0017] Figure 3 It is a whole structure plan view of the utility model;

[0018] Figure 4 It is a corresponding Figure 2 whole structure section view of the utility model at A-A position;

[0019] Figure 5 It is a corresponding Figure 4 local structure schematic view of the utility model at movable pin corresponding position.

[0020] In the diagram: 1. Fixed mold; 101. Core; 102. Positioning seat; 2. Moving mold; 201. Relief groove; 202. Cavity; 203. Groove; 204. Pressure block; 205. Movable pin; 206. Guide groove; 3. Guide post; 4. Connecting rod; 5. Connecting seat; 6. Pressure plate; 7. Storage spring; 8. Slider. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1-5 As shown, this utility model provides a technical solution: an automobile fender stamping die assembly, including a fixed die 1 and a moving die 2 located above the fixed die 1. Guide posts 3 are fixed at the top of the fixed die 1 near the four corners. The moving die 2 is slidably connected to the guide posts 3. A core 101 is provided at the top of the fixed die 1. Positioning seats 102 fixed to the top of the fixed die 1 are provided at one side of the core 101 corresponding to the fender light groove and at the two corners on the other side.

[0023] A clearance groove 201 is provided at the bottom of the moving mold 2 corresponding to the position of the positioning seat 102. A cavity 202 corresponding to the core 101 is provided at the bottom of the moving mold 2. A groove 203 is provided at the top of the inner wall of the cavity 202 near the edge. A pressure block 204 is provided in the groove 203. The depth of the groove 203 is the same as the thickness of the pressure block 204. The bottom shape of the pressure block 204 is consistent with the shape at the corresponding position of the top of the inner wall of the cavity 202. When the moving mold 2 is pressed down, the pressure block 204 is squeezed upward by the leaf plate and retracts back into the groove 203, completing the top surface of the inner wall of the entire cavity 202.

[0024] The fixed mold 1 has a movable pin 205 that is vertically fixed to the pressure block 204. The movable pin 205 is a square rod, which ensures that the pressure block 204 can only move up and down and cannot rotate. It ensures that the pressure block 204 retracts into the groove 203 in the opposite direction of downward movement, which is completely compatible with the shape of the top surface of the inner wall of the cavity 202. The moving mold 2 is provided with a guide groove 206 that is compatible with the shape of the movable pin 205. The top of the movable pin 205 is fixed with a slider 8 that is slidably connected to the pressure plate 6, and the top of the slider 8 is parallel to the lower surface of the pressure plate 6.

[0025] The movable die 2 is fixedly connected with a connecting rod 4 at the top, the connecting rod 4 is fixedly connected with a connecting seat 5 for connecting with a downward driving mechanism at the top, a pressing plate 6 is slidably sleeved on the connecting rod 4, the pressing plate 6 and the connecting seat 5 are provided with a force storage spring 7 which is movably sleeved on the connecting rod 4, the connecting rod 4, the force storage spring 7 and the connecting seat 5 are all provided with multiple groups and are symmetrically arranged on the pressing plate 6 in front and back and left and right directions, so that uniform downward pressure is provided and the quality of the leaf plate stamping is ensured.

[0026] Working principle:

[0027] When the movable die 2 is not in contact with the fixed die 1 and the metal plate during the descending process, the pressing plate 6 and the movable pin 205 are extruded downward under the action of the force storage spring 7, so that the pressing block 204 moves downward and extends, and is preferentially extruded in contact with the metal plate, thereby playing a role of pre-positioning the metal plate, the movable die 2 continues to descend, the pressing block 204 gradually moves upward and retracts into the groove 203 under the reverse action force of the metal plate, the movable pin 205 pushes the pressing plate 6 upward, so that the force storage spring 7 is contracted, and the closing of the movable die 2 and the fixed die 1 is not affected, thereby ensuring that the leaf plate is smoothly stamped and formed;

[0028] After stamping, the movable die 2 moves upward, the force storage spring 7 pushes the pressing plate 6 downward again, so that the movable pin 205 extrudes the position close to the edge of the leaf plate through the pressing block 204, thereby promoting the downward movement, demolding and discharging, the mode of extruding the leaf plate from the four edges is adopted, the pressure and frictional resistance of the arc-shaped leaf plate and the inner wall of the cavity 202 are not increased, and the leaf plate is not easy to deform.

[0029] It should be noted that in this text, terms such as "including", "containing" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or device.

[0030] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An automotive rocker panel stamping die assembly comprising a stationary die (1) and a moving die (2) located above the stationary die (1), characterized in that: The fixed mold (1) is fixed with guide posts (3) near four corners on the top, the movable mold (2) is in sliding connection with the guide posts (3), the fixed mold (1) is provided with a core (101) on the top, the core (101) is provided with positioning seats (102) fixed on the top of the fixed mold (1) on one side corresponding to the leaf plate car lamp groove and the other side two corners; The movable mold (2) is provided with a let-one-slot (201) corresponding to the positioning seat (102) on the bottom, the movable mold (2) is provided with a cavity (202) corresponding to the core (101) on the bottom, the cavity (202) is provided with a recess (203) near the edge on the top of the inner wall, the recess (203) is provided with a pressing block (204), the fixed mold (1) is movably inserted with a movable pin (205) in perpendicular fixed connection with the pressing block (204) on the top. The movable mold (2) is fixedly connected with a connecting rod (4) on the top, the connecting rod (4) is fixed with a connecting seat (5) for being connected with a downward driving mechanism on the top, the connecting rod (4) is slidably sleeved with a pressing plate (6), the pressing plate (6) and the connecting seat (5) are provided with a force storage spring (7) movably sleeved on the connecting rod (4) therebetween.

2. The stamping die assembly for an automobile leaf fender of claim 1, wherein: The connecting rod (4), the force storage spring (7) and the connecting seat (5) are all provided with multiple groups and are symmetrically arranged on the pressing plate (6) in front and back and left and right.

3. The stamping die assembly for an automobile leaf fender of claim 1, wherein: The depth of the recess (203) is the same as the thickness of the pressing block (204), and the shape of the bottom of the pressing block (204) is consistent with the shape of the corresponding position on the top of the inner wall of the cavity (202).

4. The stamping die assembly for an automobile leaf fender of claim 1, wherein: The movable pin (205) is a square rod, and the movable mold (2) is provided with a guide groove (206) matched with the shape of the movable pin (205).

5. The stamping die assembly for an automobile leaf fender of claim 1, wherein: The movable pin (205) is fixedly connected with a sliding block (8) in sliding connection with the pressing plate (6) on the top, and the top of the sliding block (8) is parallel to the lower surface of the pressing plate (6).

Images