Stamping die for automobile parts

Abstract

The utility model discloses an automobile part stamping die which comprises an upper die base and a lower die base, an upper die core is arranged in the upper die base, a lower die core is arranged on the lower die base, an ejector plate is arranged on the lower die base in a sliding mode, a plurality of ejector rods are arranged on the ejector plate, an ejector hole is formed in the lower die core in a penetrating mode, locking grooves are formed in the side walls of the ejector rods, and the locking grooves are matched with the locking grooves. A locking plate is connected into the lower die base in a sliding mode, a movable hole penetrates through the locking plate, an inserting groove is formed in the top face of the lower die base, at least one elastic reset mechanism is arranged between the locking plate and the movable groove, an inclined guide face inclining towards the inserting groove is formed on the side portion, close to the inserting groove, of the locking plate, and a driving piece inserted into the inserting groove is arranged on the bottom face of the upper die base. According to the stamping die for the automobile parts, after the die is closed, the positions of the ejector rods are locked through the locking plates, the ejector rods are prevented from moving in the axial direction under the action of external force, the forming precision of stamping parts is ensured, and the production efficiency and the product quality are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to die technical field, especially involves a kind of automobile parts stamping die. BACKGROUND

[0002] With the rapid development of automobile industry and technical progress, the production requirement of automobile parts is also increasing day by day. Most of the automobile parts such as engine cover, roof cover and car lamp mounting plate are produced by stamping, which requires stamping die. The existing automobile parts stamping die adopts the mode of upper die and lower die pressing, and in the process of die closing, the ejector rod in the lower die is easy to move axially to a certain extent due to external force impact, which affects the forming precision of the stamped part, and may cause the size deviation of the stamped part, leaving marks or pits on the surface of the stamped part, etc. It is difficult to ensure production efficiency and product quality. UTILITY MODEL CONTENT

[0003] The utility model aims at solving the technical insufficiency of the above-mentioned technology and designs an automobile parts stamping die. After the die is closed, the position of each ejector rod is locked by the locking plate to prevent the ejector rod from moving axially when subjected to external force, ensuring the forming precision of the stamped part and improving the production efficiency and product quality.

[0004] In order to solve the above technical problems, the technical scheme of the utility model is as follows: an automobile parts stamping die, comprising an upper die seat and a lower die seat, the inside of the upper die seat is provided with an upper die core, the lower die seat is provided with a lower die core, the lower die seat is slidingly provided with an ejector plate, the ejector plate is provided with a plurality of ejector rods, the lower die core is provided with an ejector hole for slidingly arranging the ejector rod, the ejector hole penetrates the bottom surface of the lower die seat, the side wall of the ejector rod is provided with a locking groove, the side wall of the lower die seat is provided with a movable slot, the movable slot and each ejector hole are in communication, the locking plate is slidingly connected in the movable slot, the position of the locking plate relative to the ejector rod is provided with a movable hole, the ejector rod is arranged in the corresponding movable hole, when the top of the ejector rod cooperates with the outer surface of the lower die core, the opening of the locking groove and the inner wall of the movable hole are matched and correspondingly arranged, the top surface of the lower die seat is provided with an insertion slot in communication with the movable slot, at least one elastic reset mechanism is arranged between the locking plate and the movable slot, so that the locking plate has the tendency to extend into the insertion slot, the side of the locking plate close to the insertion slot is formed with an inclined guide surface inclined towards the insertion slot, the bottom surface of the upper die seat is provided with a driving piece inserted into the insertion slot, and the bottom of the driving piece is in abutting cooperation with the inclined guide surface.

[0005] Preferably, the inner wall of the movable slot is provided with a guide groove on both sides, and the locking plate is provided with a guide portion slidingly connected in the guide groove.

[0006] Preferably, the guide groove passes through the side wall of the lower mold base, and a mounting cover is detachably connected to the side wall of the lower mold base, and the mounting cover is used to cover the opening of the movable groove and the opening of the guide groove.

[0007] Preferably, the elastic reset mechanism includes an elastic member, and a first centering portion and a second centering portion arranged opposite to each other, the first centering portion and the second centering portion are respectively arranged on opposite sides of the mounting cover and the locking plate, and the elastic member is arranged between the first centering portion and the second centering portion.

[0008] Preferably, the movable hole is a waist hole, the length direction of the movable hole is arranged along the sliding direction of the locking plate, and the inner wall of the movable hole is provided with a locking part, and the locking part is plugged into and matched with the corresponding locking groove.

[0009] Preferably, it also includes a base, which is located below the lower mold base and has a through hole. Two square irons are symmetrically arranged between the base and the lower mold base, and the opposite sides of the two square irons respectively abut against the two sides of the top plate.

[0010] Preferably, two guide columns are symmetrically provided on the base, the guide columns are connected to the lower die base, and the ejector plate is provided with guide holes at positions relative to the guide columns, and the guide holes are sleeved and fitted with the corresponding guide columns.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] The utility model provides a stamping die for automobile parts, which, after the die is closed, the upper die base and the lower die base are buckled with each other, the driving part is disengaged from the slot, and under the action of the elastic reset mechanism, the locking plate is reset to make the inner wall of the movable hole disengage from the corresponding locking slot, thereby releasing the locking plate from the position lock of each ejector rod, so that the mold can smoothly complete the ejection and demoulding operation after the die is completed, thereby improving production efficiency and product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 Schematic diagram of the structure of the stamping die in the embodiment;

[0014] Figure 2is a sectional view of the stamping die in the embodiment Figure One ;

[0015] Figure 3 is a sectional view of the stamping die in the embodiment Figure Two .

[0016] In the figure: 1, upper die seat; 101, upper die core; 102, driving part; 2, lower die seat; 201, lower die core; 202, ejecting hole; 203, movable slot; 204, insertion slot; 205, guide slot; 3, ejecting plate; 301, ejecting rod; 302, locking slot; 303, guide hole; 4, locking plate; 401, movable hole; 402, inclined guide surface; 403, guide part; 404, locking part; 5, elastic reset mechanism; 51, elastic part; 52, first centering part; 53, second centering part; 6, mounting cover; 7, base; 701, through hole; 8, square iron; 9, guide column; 10, stamping part. DETAILED DESCRIPTION

[0017] The utility model will be further described below by combining the drawings with the embodiments.

[0018] Reference Figure 1 、 Figure 2 、 Figure 3 , an automobile part stamping die, including upper die seat 1, lower die seat 2 and base 7, the inside of upper die seat 1 is provided with upper die core 101, lower die seat 2 is provided with lower die core 201, base 7 is located at the lower portion of lower die seat 2, two square irons 8 are symmetrically arranged between base 7 and lower die seat 2, the lower portion of lower die seat 2 is slidably provided with ejecting plate 3, the opposite sides of two square irons 8 are respectively in abutting cooperation with the two side portions of ejecting plate 3, base 7 is provided with through hole 701, and the telescopic end of telescopic driving device such as hydraulic cylinder or electric push rod is connected with ejecting plate 3 by passing through through hole 701, so that ejecting plate 3 is driven to reciprocate and move close to or away from lower die seat 2. Two guide columns 9 are symmetrically arranged on base 7, guide column 9 is connected with lower die seat 2, and guide hole 303 is arranged on the position of ejecting plate 3 relative to guide column 9, guide hole 303 is sleeved with corresponding guide column 9, to guide the movement of ejecting plate 3.

[0019] The top material plate 3 is provided with a plurality of top material rods 301, the lower die core 201 is provided with top material holes 202 for slidingly arranging the top material rods 301, the top material holes 202 penetrate the bottom surface of the lower die seat 2, the side wall of the top material rod 301 is provided with a locking groove 302, the side wall of the lower die seat 2 is provided with a movable groove 203, the movable groove 203 is in communication with each top material hole 202, the movable groove 203 is slidably connected with a locking plate 4, the inner wall of the movable groove 203 is provided with a guide groove 205 on both sides, the locking plate 4 is provided with a guide portion 403 which is slidably connected in the guide groove 205, and the guide portion 403 is used to guide the transverse translation of the locking plate 4. The guide groove 205 penetrates the side wall of the lower die seat 2, and the side wall of the lower die seat 2 is detachably connected with a mounting cover 6, and the mounting cover 6 is used to cover the opening of the movable groove 203 and the opening of the guide groove 205.

[0020] The locking plate 4 is provided with a movable hole 401 penetrating the position of the top material rod 301, the top material rod 301 is arranged in the corresponding movable hole 401, when the top of the top material rod 301 cooperates with the outer surface of the lower die core 201, the opening of the locking groove 302 is matched with the inner wall of the movable hole 401 and is arranged correspondingly. Preferably, the top of the top material rod 301 is a rod structure. The movable hole 401 is a waist hole, the length direction of the movable hole 401 is arranged along the sliding direction of the locking plate 4, the inner wall of the movable hole 401 is provided with a locking portion 404, and the locking portion 404 is inserted and matched with the corresponding locking groove 302.

[0021] The top surface of the lower die seat 2 is provided with an insertion groove 204 in communication with the movable groove 203, three elastic reset mechanisms 5 are arranged between the locking plate 4 and the movable groove 203, so that the locking plate 4 has a tendency to extend into the insertion groove 204. Preferably, the elastic reset mechanism 5 includes an elastic member 51, and a first centering portion 52 and a second centering portion 53 arranged opposite to each other, the first centering portion 52 and the second centering portion 53 are arranged on the opposite sides of the mounting cover 6 and the locking plate 4 respectively, the elastic member 51 is a spring structure, and the elastic member 51 is arranged between the first centering portion 52 and the second centering portion 53.

[0022] The locking plate 4 is formed with an inclined guide surface 402 inclined towards the slot 204 near the side of the slot 204, and the bottom surface of the upper die holder 1 is provided with a driving member 102 inserted into the slot 204, and the bottom of the driving member 102 is in abutting engagement with the inclined guide surface 402. After the mold is closed, the upper die holder 1 and the lower die holder 2 are engaged with each other to form a stamping cavity to stamp the stamping part 10, the driving member 102 is inserted into the slot 204 and pushes the locking plate 4 to move against the elastic reset mechanism 5 under the guidance of the inclined guide surface 402, so that the inner wall of the movable hole 401 is clamped into the corresponding locking groove 302, and the locking portion 404 is inserted into the corresponding locking groove 302, thereby limiting the axial translation of the ejector rod 301. By locking the position of each ejector rod 301 by the locking plate 4, the movement of the ejector rod 301 in the axial direction under the action of external force is prevented, the forming precision of the stamping part 10 is ensured, and defects such as size deviation of the stamping part 10, marks or pits left on the surface of the stamping part 10 are avoided. After the mold is opened, the upper die holder 1 and the lower die holder 2 are separated from each other, the driving member 102 is separated from the slot 204, and the locking plate 4 is reset under the action of the elastic reset mechanism 5 to separate the inner wall of the movable hole 401 from the corresponding locking groove 302, thereby releasing the position locking of each ejector rod 301 by the locking plate 4. After the mold is opened, the ejector rod 301 can be smoothly completed, the production efficiency and product quality are improved.

[0023] Of course, the above is only a typical example of the present application, in addition to this, the present application can have other various specific embodiments, and any technical solution formed by equivalent replacement or equivalent transformation falls within the scope of the present application.

Claims

1. An automobile part stamping die comprising an upper die seat (1) and a lower die seat (2), the interior of the upper die seat (1) being provided with an upper die insert (101), the lower die seat (2) being provided with a lower die insert (201), characterized in that, The lower die base (2) is slidably provided with a material ejecting plate (3), the material ejecting plate (3) is provided with a plurality of material ejecting rods (301), the lower die core (201) is provided with material ejecting holes (202) through which the material ejecting rods (301) are slidably arranged, the material ejecting holes (202) penetrate the bottom surface of the lower die base (2), the side wall of the material ejecting rod (301) is provided with a locking groove (302), the side wall of the lower die base (2) is provided with a movable groove (203), the movable groove (203) is in communication with each material ejecting hole (202), a locking plate (4) is slidably connected in the movable groove (203), the locking plate (4) is provided with a movable hole (401) penetrating the position of the material ejecting rod (301), the material ejecting rod (301) is arranged in the corresponding movable hole (401), when the top of the material ejecting rod (301) cooperates with the outer surface of the lower die core (201), the opening of the locking groove (302) is matched with the inner wall of the movable hole (401) and is correspondingly arranged, the top surface of the lower die base (2) is provided with an insertion groove (204) in communication with the movable groove (203), at least one elastic reset mechanism (5) is arranged between the locking plate (4) and the movable groove (203), so that the locking plate (4) has a tendency to extend into the insertion groove (204), the side of the locking plate (4) close to the insertion groove (204) is formed with an inclined guide surface (402) inclined towards the insertion groove (204), the bottom surface of the upper die base (1) is provided with a driving piece (102) inserted into the insertion groove (204), the bottom of the driving piece (102) is in abutting cooperation with the inclined guide surface (402).

2. The stamping die for an automobile part according to claim 1, wherein The inner wall of the movable groove (203) is provided with a guide groove (205) on both sides, and the locking plate (4) is provided with a guide portion (403) slidably connected in the guide groove (205).

3. The stamping die for an automobile part according to claim 2, wherein The guide groove (205) penetrates the side wall of the lower die base (2), and the side wall of the lower die base (2) is detachably connected with a mounting cover (6), and the mounting cover (6) is used to cover the opening of the movable groove (203) and the opening of the guide groove (205).

4. The stamping die for an automobile part according to claim 3, wherein The elastic reset mechanism (5) comprises an elastic member (51), and oppositely arranged first and second centering portions (52) and (53), the first and second centering portions (52) and (53) are arranged on opposite sides of the mounting cover (6) and the locking plate (4) respectively, and the elastic member (51) is arranged between the first and second centering portions (52) and (53).

5. The stamping die for an automobile part according to claim 1, wherein The movable hole (401) is a waist hole, the length direction of the movable hole (401) is arranged along the sliding direction of the locking plate (4), the inner wall of the movable hole (401) is provided with a locking portion (404), and the locking portion (404) is inserted and matched with the corresponding locking groove (302).

6. The stamping die for an automobile part according to claim 1, wherein It also includes a base (7) located below the lower die seat (2), the base (7) is through a through hole (701), the base (7) and the lower die seat (2) are symmetrically provided with two square irons (8), the opposite sides of the two square irons (8) are respectively in contact with the two sides of the top material plate (3).

7. The stamping die for an automobile part according to claim 6, wherein Two guide columns (9) are symmetrically arranged on the base (7), the guide columns (9) are connected with the lower die seat (2), the position of the top material plate (3) relative to the guide columns (9) is through a guide hole (303), the guide hole (303) is sleeved with the corresponding guide column (9).

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