Forming and punching die for lower cradle

Abstract

The utility model relates to a forming and punching die, in particular to a forming and punching die for a lower cradle. Comprising an upper die base, a lower die base, an upper die fixing plate and a lower die fixing plate, and the upper die base and the lower die base are in sliding connection through guide columns and guide sleeves. A forming female die is arranged on the upper end face of the lower die fixing plate, and the lower die fixing plate is provided with a hole identical to a cavity of the forming female die. A punch and an unloading piece are arranged in the hole, and the punch extends into a cavity of the forming female die. The lower end face of the upper die fixing plate is fixedly connected with a forming male die, and the forming male die is provided with a punching female die and a first discharging hole communicating with the punching female die. The punching female die and the first discharging hole are coaxially arranged, and the inner diameter of the punching female die is smaller than that of the first discharging hole. The upper die holder is provided with a second discharge hole communicated with the first discharge hole; according to the lower cradle forming and punching die adopting the scheme, an upper discharging mode is adopted, a waste box does not need to be emptied frequently, and the die is simple in structure and low in cost.

Description

Technical Field

[0001] The utility model relates to a forming punching die, in particular to a lower cradle forming punching die. Background Art

[0002] The lower cradle is a very heavy component of a motorcycle. It has a good buffering effect on the motorcycle and is used to improve the comfort and safety of the motorcycle when driving.

[0003] At present, the lower cradle is processed by forming molds and punching molds, and the production efficiency is low. The waste material during punching falls from the bottom of the punching mold, and a space for falling material needs to be left between the lower mold base and the lower mold fixing plate, which increases the mold cost; the punching waste material is generally collected in the waste box under the mold, but the space under the mold is limited, and the height of the waste box must be lower than the lower mold base, resulting in a small waste box volume, and the waste box needs to be emptied frequently. Utility Model Content

[0004] The utility model aims to provide a lower cradle forming punching die, which enables the forming punching of the lower cradle to be completed at one time, and the die has a simple structure and low cost, and does not need to frequently empty a waste box.

[0005] The lower cradle forming punching die in this scheme includes an upper die base, a lower die base, an upper die fixing plate and a lower die fixing plate, and the upper die base and the lower die base are slidably connected by guide pins and guide sleeves. The upper end surface of the lower die fixing plate is provided with a forming die, and the lower die fixing plate is provided with a mold hole that is the same as the forming die cavity. A punch and a discharge piece are provided in the mold hole, and the punch extends into the forming die cavity. The lower end surface of the upper die fixing plate is fixedly connected with a forming convex die, and the forming convex die is provided with a punching die and a first discharge hole connected to the punching die. The punching die and the first discharge hole are coaxially arranged, and the inner diameter of the punching die is smaller than the inner diameter of the first discharge hole, so as to prevent the punched waste from being stuck in the punching die after returning. The upper die base is provided with a second discharge hole connected to the first discharge hole, and the accumulated and superimposed waste can be discharged through the second discharge hole.

[0006] The advantages of the utility model are: 1) As the waste materials of the punching accumulate and stack, the waste materials are discharged upward, that is, the waste materials are discharged from the upper die seat. Since the placement space of the waste box is no longer limited to the bottom of the die, and the height of the waste box can be equivalent to the height of the upper die seat, a large waste box can be used to extend the emptying cycle of the waste box and save costs; 2) The waste box can be set on one side of the die, which is easy to move the waste box; 3) The forming and punching are completed at one time, and the production efficiency is high; 4) There is no need to set a blanking space between the lower die seat and the lower die fixing plate, which reduces the mold cost; 5) The lower die seat and the lower die fixing plate fit tightly, are easy to connect, and have higher working stability.

[0007] Furthermore, the first discharge hole is a stepped structure; the punching die is clamped at the lower end of the first discharge hole. Since the cutting edge of the punching die becomes larger after being worn, the punching die needs to be replaced frequently. The split structure allows the punching die to be replaced separately, saving processing costs.

[0008] Furthermore, the first discharge hole is an inverted conical structure, so that the punched waste can be easily moved upward.

[0009] Furthermore, the diameter of the second discharge hole is not less than the diameter of the first discharge hole.

[0010] Furthermore, it also includes a blowing mechanism, which is arranged on the upper mold base and located on one side of the second discharge hole.

[0011] Furthermore, the discharge piece is an elastic discharge piece, and a clearance hole is provided on the elastic discharge piece for the punch to pass through. The elastic discharge piece is preferably elastic rubber, and the diameter of the clearance hole is larger than the diameter of the punch to prevent the elastic rubber from squeezing the punch when the elastic rubber is pressed down and deformed by the forming punch.

[0012] Furthermore, it also includes a push rod, which passes through the forming convex die and can extend out of the forming convex die. Specifically, when the forming convex die is punching and forming the part, the push rod is located in the forming convex die; when the forming convex die is reset, the end of the push rod extends out of the forming convex die, which can prevent the processed part from being held on the forming convex die. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional diagram of the punching die for forming the lower cradle of the utility model;

[0014] Figure 2 It is a side view of the punching die for forming the lower cradle of the utility model;

[0015] Figure 3 for Figure 2 AA section view in;

[0016] Figure 4 It is a schematic diagram of the punching of the punching die for the lower cradle of the utility model;

[0017] Figure 5 It is a structure of the punching die and the first row hole in the lower cradle forming punching die of the utility model;

[0018] Figure 6 It is another structure of the punching die and the first row hole in the lower cradle forming punching die of the utility model;

[0019] Figure 7 It is another structure of the punching die and the first row hole in the lower cradle forming punching die of the utility model;

[0020] Figure 8 Partial cross-sectional view of the forming and punching die for the lower rocker of the present utility model

[0021] Figure 9 It is a part drawing of the lower rocker.

[0022] In the figure, 1 is the upper die base, 2 is the lower die base, 3 is the forming female die, 3-1 is the forming female die cavity, 4 is the forming male die, 5 is the punch, 6 is the punching female die, 7 is the upper die fixing plate, 8 is the lower die fixing plate, 8-1 is the hole, 9 is the elastic unloading part, 9-1 is the relief hole, 10 is the first discharge hole, 11 is the second discharge hole, 12 is the blowing mechanism, 13 is the pushing rod, 14 is the lower rocker, and 15 is the waste. Specific implementation mode

[0023] The present utility model will be further described in detail below in conjunction with the drawings and specific implementation modes:

[0024] According to Figures 1 to 4 As shown, for the forming and punching die of the lower rocker, the upper die base 1 and the lower die base 2 are slidably connected through guide columns and guide sleeves. The upper end surface of the lower die base 2 is provided with a lower die fixing plate 8, and the forming female die 3 is bolted to the lower die fixing plate 8. The lower die fixing plate 8 is provided with a hole 8-1 identical to the forming female die cavity 3-1, and a unloading part and a punch 5 for punching are arranged in the hole 8-1. Among them, the punch 5 extends into the forming female die 3 and the height of the punch 5 is less than the upper end surface of the forming female die 3. Preferably, the unloading part can be a unloading push rod, elastic rubber, unloading push plate, etc. The lower end surface of the upper die base 1 is sequentially connected with an upper die fixing plate 7 and a forming male die 4. The forming male die 4 is provided with a punching female die 6 and a first discharge hole 10, and the punching female die 6 is adapted to the punch 5. The punching female die 6 and the first discharge hole 10 are communicated and coaxially arranged, and the inner diameter of the punching female die 6 is smaller than the inner diameter of the first discharge hole 10. In this embodiment, according to Figure 5 As shown, the forming male die 4, the punching female die 6 and the first discharge hole 10 can be an integral structure. The upper die base 1 is provided with a second discharge hole 11 communicated with the first discharge hole 10.

[0025] As a further improvement of the present utility model, according to Figure 6 As shown, the first discharge hole 10 is a stepped structure. Specifically, the lower end of the first discharge hole 10 is a connecting hole, and the connecting hole is larger than the first discharge hole 10, and the punching female die 6 is clamped in the connecting hole. Since the inner diameter of the punching female die 6 is smaller than the inner diameter of the first discharge hole 10, that is, the inner wall of the punching female die 6 protrudes from the inner wall of the first discharge hole 10, the punching female die 6 is easy to replace and disassemble.

[0026] As a further improvement of the present utility model, according to Figure 7As shown, the first discharge hole 10 is an inverted conical structure, so that the punched waste 15 can easily move upwards and not slide downwards, and prevent the first discharge hole 10 from being blocked and stuck due to excessive stacking of waste 15 and the overall dead weight of waste 15.

[0027] As a further improvement of the utility model, according to Figure 4 As shown, the diameter of the second discharge hole 11 is not less than the diameter of the first discharge hole 10 .

[0028] As a further improvement of the utility model, it also includes a blowing mechanism 12, according to Figure 8 As shown, the blowing mechanism 12 is arranged on the upper mold base 1 and is located on one side of the second discharge hole 11. The blowing mechanism 12 in this embodiment is preferably an air gun. When the top waste 15 is higher than the second discharge hole 11, the air gun blows in the direction B to blow the top waste 15 into the waste 15 box.

[0029] As a further improvement of the present invention, the discharge piece is an elastic discharge piece 9, and a clearance hole 9-1 is provided on the elastic discharge piece 9 for the punch 5 to pass through. The elastic discharge piece 9 in this embodiment is preferably elastic rubber, and the diameter of the clearance hole 9-1 is larger than the diameter of the punch 5 to prevent the elastic rubber from squeezing the punch 5 when the elastic rubber is pressed down and deformed by the forming punch 4. Specifically, an annular space is formed between the clearance hole 9-1 and the punch 5, which is a space for the elastic rubber to be squeezed and deformed.

[0030] As a further improvement of the utility model, it also includes a push rod 13, according to Figure 3 , 4 As shown, the push rod 13 passes through the forming punch 4 and can extend out of the forming punch 4. Specifically, when the forming punch 4 is stamping the part, the push rod 13 is located in the forming punch 4; when the forming punch 4 is reset, the end of the push rod 13 extends out of the forming punch 4, which can prevent the processed part from being held on the forming punch 4.

[0031] When in use, as the forming punch 4 moves downward, the flanging forming of the lower cradle 14 of the part to be processed is first completed, and then the punching of the lower cradle 14 is completed. The punched waste 15 enters the first discharge hole 10 through the punching die 6 under the push of the punch 5. After the processing of the lower cradle 14 is completed, the forming punch 4 moves upward, and the elastic rubber pushes the lower cradle 14 out of the forming die 3. After the processing of the lower cradle 14 is completed, Figure 9 As the number of processing of the lower cradle 14 increases, the waste 15 in the first discharge hole 10 accumulates and is finally ejected from the second discharge hole 11 of the upper die base 1, and the waste 15 at the top is blown into the waste box by an air gun.

[0032] The above are only embodiments of the present utility model, and common knowledge such as specific structures and characteristics known in the solutions is not described in detail herein. It should be noted that for those skilled in the art, without departing from the structure of the present utility model, several deformations and improvements can be made, which should also be regarded as the protection scope of the present utility model, and these will not affect the implementation effect of the present utility model and the practicability of the patent.

Claims

1. The lower cradle forming punching die includes an upper die base, a lower die base, an upper die fixing plate and a lower die fixing plate, and is characterized in that: A forming die is arranged on the lower die fixing plate, and a die hole which is the same as the forming die cavity is arranged on the lower die fixing plate; a punch and a discharge piece are arranged in the die hole, and the punch extends into the forming die cavity; a forming convex die is fixedly connected to the upper die fixing plate, and a punching die and a first discharge hole which is connected with the punching die are arranged on the forming convex die; the punching die and the first discharge hole are arranged coaxially, and the inner diameter of the punching die is smaller than the inner diameter of the first discharge hole; the upper die seat is provided with a second discharge hole which is connected with the first discharge hole.

2. The lower cradle forming punching die according to claim 1, characterized in that: The first material discharge hole is a stepped structure; the punching die is clamped at the lower end of the first material discharge hole.

3. The lower cradle forming punching die according to claim 1 or 2, characterized in that: The first discharge hole is an inverted cone structure; the minimum inner diameter of the first discharge hole is larger than the inner diameter of the punching die.

4. The lower cradle forming punching die according to claim 1, characterized in that: The diameter of the second discharge hole is not less than the diameter of the first discharge hole.

5. The lower cradle forming punching die according to claim 1, characterized in that: It also includes a blowing mechanism, which is arranged on the upper mold base and located on one side of the second discharge hole.

6. The lower cradle forming punching die according to claim 1, characterized in that: The discharge piece is an elastic discharge piece, and a clearance hole for the punch to pass through is provided on the elastic discharge piece.

7. The lower cradle forming punching die according to claim 1, characterized in that: Also included is a push rod, which passes through the forming punch and can extend out of the forming punch.

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