Oil pan arc opening cutting die

Abstract

The utility model relates to an oil pan arc opening cutting die which comprises a lower die base and an upper die base, the upper die base is arranged above the lower die base in a sliding mode, a female die is arranged on the lower die base, a male die with the side face in a bevel opening shape is arranged at the bottom end of the upper die base, and the male die is matched with the female die. Limiting blocks are arranged on the lower die base and located on the two sides of the female die, and two sets of positioning blocks are arranged in the middle of the lower die base. According to the oil pan notch punching device, when a notch is punched on an oil pan with an arc, the oil pan is erected and placed, then the arc is placed on the female die of the lower die base, the oil pan is positioned and locked through the two sets of positioning blocks, and the male die on the upper die base is pressed downwards and interacts with the female die to cut off workpiece excess materials; the limiting blocks on the two sides of the female die can prevent the situation that a workpiece is damaged due to the fact that the male die moves downwards too much, the locating blocks are arranged, after the oil pan is vertically fixed, profile trimming is conducted on the oil pan through the male die, and the punching efficiency can be improved while workpiece damage is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil sump mould technical field, concretely is a kind of oil sump cutting arc mouth mould. BACKGROUND

[0002] Oil sump is the lower half of crankcase, also known as lower crankcase, and the main purpose of oil sump is to enclose the outer shell of crankcase oil tank, prevent impurities from entering, and collect and store the lubricating oil flowing back from the engine friction surface, dissipate part of the heat, and prevent the oxidation of lubricating oil.

[0003] The existing oil sump with arc due to cutting notch on side, when stamping notch, need to process notch on multiple planes, equivalent to profile trimming of oil sump, profile trimming need to process oil sump vertically, make oil sump positioning more difficult, affect stamping efficiency. UTILITY MODEL CONTENT

[0004] The utility model discloses a kind of oil sump cutting arc mouth mould, to solve the problem raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of oil sump cutting arc mouth mould, including lower die seat and upper die seat, the upper die seat is slidably arranged on the upper side of lower die seat, the lower die seat is provided with matrix, the upper die seat bottom is provided with the male die with side face as bevel shape, the male die with the matrix is mutually matched, the lower die seat is located the limit block of two sides of matrix, the lower die seat middle part is provided with two groups of positioning block.

[0006] As a preferred scheme, the lower die seat is provided with two guide columns, the upper die seat is provided with two guide sleeves, the guide sleeve can slide up and down on the guide column.

[0007] As a preferred scheme, the upper die seat is provided with first self-lubricating wear plate, the number of first self-lubricating wear plate is two, the lower die seat is provided with second self-lubricating wear plate.

[0008] As a preferred scheme, the matrix is provided with material leakage hole below, the material leakage hole is provided with waste chute in the lower die seat below.

[0009] As a preferred scheme, the lower die seat is fixedly provided with multiple groups of hanging rods.

[0010] From the above technical scheme provided by the utility model, it can be seen that the oil sump cutting arc mouth mould provided by the utility model has the following beneficial effects:

[0011] When the oil pan with a circular arc is punched, the oil pan is placed vertically, the circular arc is placed on the concave die of the lower die seat, the oil pan is positioned and locked by the two groups of positioning blocks, the convex die on the upper die seat is pressed down to interact with the concave die to cut off the excess material of the workpiece, the limiting blocks on the two sides of the concave die can prevent the convex die from moving down too much to cause damage to the workpiece, the oil pan is fixed vertically by the positioning blocks, and then the convex die is used for trimming the profile of the oil pan, so that the circular arc of the oil pan is conveniently punched, the workpiece damage is reduced, and the punching efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 It is an overall structure schematic diagram of the oil pan circular arc cutting die of the utility model;

[0013] Fig. 2 It is a sectional view of the oil pan circular arc cutting die of the utility model;

[0014] Fig. 3 It is a plan view of the oil pan circular arc cutting die of the utility model.

[0015] In the drawing: 1, concave die; 2, lower die seat; 3, convex die; 4, upper die seat; 5, first self-lubricating wear-resistant plate; 6, second self-lubricating wear-resistant plate; 7, guide column; 8, guide sleeve; 9, limiting block; 10, positioning block; 11, material leakage hole; 12, waste material sliding groove; 13, hanging rod. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the utility model is further described in detail below by combining with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model, and are not used to limit the utility model.

[0017] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0018] In the description of the utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the utility model and simplify the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0019] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0020] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific embodiments.

[0021] like Figs. 1-3 As shown, this utility model embodiment provides a mold for cutting an arc-shaped opening in an oil pan, including a lower mold base 2 and an upper mold base 4. The upper mold base 4 is slidably disposed above the lower mold base 2. A concave mold 1 is disposed on the lower mold base 2. A convex mold 3 with a beveled side is disposed at the bottom end of the upper mold base 4. The convex mold 3 cooperates with the concave mold 1. Limiting blocks 9 are disposed on both sides of the concave mold 1 in the lower mold base 2. Two sets of positioning blocks 10 are disposed in the middle of the lower mold base 2.

[0022] The upper die base 4 is slidably positioned above the lower die base 2, facilitating the action of the punch 3 on the upper die base 4 on the die 1 on the lower die base 2. When punching notches in an oil pan with an arc shape, the oil pan is placed vertically, and the arc shape is positioned on the die 1. Two sets of positioning blocks 10 are then used to position and lock the oil pan. Alternatively, other locking devices that function similarly to the positioning blocks 10 can be used to position and lock the oil pan. The upper die base 4 is pressed down, causing the punch 3 and die 1 to interact and remove excess material from the workpiece. Positioning block 10 is set to vertically fix the oil pan, and then punch 3 is used to trim the surface of the oil pan, which facilitates notch punching of the oil pan arc, reduces workpiece damage and improves the stamping efficiency of the oil pan. In order to prevent the upper die base 4 from moving down too much, limiting blocks 9 are set on both sides of the die 1. The limiting blocks 9 can limit the upper die 4 and prevent the punch 3 from moving down too much, causing damage to the workpiece. The side of the punch 3 is designed as a bevel shape, which reduces the punching force of the punch 3 on the oil pan and improves the life of the die.

[0023] The lower mold base 2 is provided with two guide pillars 7, and the upper mold base 4 is provided with two guide sleeves 8. The guide sleeves 8 can slide up and down on the guide pillars 7.

[0024] In order to enable the punch 3 to act more accurately on the arc of the oil pan placed on the die 1, a guide sleeve 8 is set on the upper die base 4 and a guide post 7 is set on the lower die base 2. The guide sleeve 8 moves up and down on the guide post 7, which can more accurately drive the punch 3 away from and closer to the die 1.

[0025] The upper die seat 4 is provided with a first self-lubricating wear-resistant plate 5, the number of the first self-lubricating wear-resistant plate 5 is two, and the lower die seat 2 is provided with a second self-lubricating wear-resistant plate 6.

[0026] In order to further improve the fitting accuracy between the concave die 1 and the convex die 3, two first self-lubricating wear-resistant plates 5 are arranged on the upper die seat 4, and one second self-lubricating wear-resistant plate 6 is arranged on the lower die seat 2, and the first self-lubricating wear-resistant plate 5 and the second self-lubricating wear-resistant plate 6 are equivalent to guide plates, and the self-lubricating wear-resistant plate also has certain wear resistance.

[0027] The concave die 1 is provided with a material leakage hole 11 below, and the material leakage hole 11 is provided with a waste chute 12 inside the lower die seat 2.

[0028] In order to prevent the waste from flying around and causing environmental pollution, the material leakage hole 11 is arranged below the concave die 1, and the waste chute 12 is arranged below the material leakage hole 11, the waste generated during the punching and stamping of the oil pan falls onto the waste chute 12 through the material leakage hole 11, and is transported to the waste box through the waste chute 12 for storage, so as to reduce environmental pollution.

[0029] A plurality of hanging rods 13 are fixedly arranged on the lower die seat 2.

[0030] The hanging rods 13 are arranged at the bottom end of the lower die seat 2, the number of the hanging rods 13 is four, the hanging rods 13 can support and fix the stamping die seat, ensure the stability and safety during the stamping operation, and also facilitate the lifting of the die seat.

[0031] The working principle of the embodiment is as follows: when the oil pan with a circular arc is punched, the oil pan is placed vertically, the circular arc position is placed on the concave die 1, then the oil pan is positioned and locked by the two groups of positioning blocks 10, the guide sleeve 8 on the upper die seat 4 moves downward along the guide column 7, the convex die 3 acts on the concave die 1, the excess material of the workpiece is cut off, the waste generated during the punching and stamping of the oil pan falls onto the waste chute 12 through the material leakage hole 11, and is transported to the waste box through the waste chute 12 for storage, the oil pan is vertically fixed, and then the convex die 3 is used to trim the profile of the oil pan, so as to reduce the damage of the workpiece and improve the stamping efficiency of the oil pan.

[0032] 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 these 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. A mold for cutting an arc-shaped opening in an oil pan, comprising a lower mold base (2) and an upper mold base (4), characterized in that: The upper mold base (4) is slidably disposed above the lower mold base (2). A cavity mold (1) is disposed on the lower mold base (2). A punch (3) with a slanted side is disposed at the bottom end of the upper mold base (4). The punch (3) and the cavity mold (1) cooperate with each other. Limiting blocks (9) are disposed on both sides of the cavity mold (1) in the lower mold base (2). Two sets of positioning blocks (10) are disposed in the middle of the lower mold base (2).

2. The oil pan arc-shaped die according to claim 1, characterized in that: The lower mold base (2) is provided with two guide pillars (7), and the upper mold base (4) is provided with two guide sleeves (8). The guide sleeves (8) can slide up and down on the guide pillars (7).

3. The oil pan arc-shaped die according to claim 2, characterized in that: The upper mold base (4) is provided with a first self-lubricating wear-resistant plate (5), and there are two first self-lubricating wear-resistant plates (5). The lower mold base (2) is provided with a second self-lubricating wear-resistant plate (6).

4. The oil pan arc-shaped die according to claim 1, characterized in that: The die (1) has a material discharge hole (11) below it, and a waste material chute (12) located inside the lower die base (2) is provided below the material discharge hole (11).

5. The oil pan arc-shaped die according to claim 1, characterized in that: Multiple sets of lifting rods (13) are fixedly installed on the lower mold base (2).

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