Blank pressing mechanism of deep drawing die

Abstract

The utility model discloses an edge pressing mechanism of a deep drawing die, which relates to the technical field of dies and comprises a lower female die, two groups of guide posts are fixedly connected to the top of the lower female die, an upper male die is slidably connected to the outer surfaces of the guide posts, an edge pressing ring is arranged above the lower female die, a first slot is formed in the edge pressing ring, a second slot is formed in the edge pressing ring, and the upper male die is connected with the lower female die. The top of the lower female die is fixedly connected with a buffering cushion, the top of the buffering cushion makes contact with the bottom of the blank holder, a set of limiting mechanism is arranged above the lower female die, and a set of clamping mechanism is arranged above the lower female die. The blank holder can be quickly fixed and limited by arranging the clamping mechanism, the two parts of the blank holder can be secondarily limited by arranging the limiting mechanism, and the blank holder can be conveniently disassembled and assembled by matching the limiting mechanism with the clamping mechanism, so that the production preparation time is shortened, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a drawing mold edge pressing mechanism. Background Art

[0002] This mechanism is a key component of the drawing die. It is specially designed to stably press and control the flow of the sheet metal during the drawing process to ensure the quality of the formed parts. The edge clamping mechanism of the drawing die can effectively prevent defects such as wrinkling and cracking of the sheet metal under different drawing depths and process conditions through its unique structural design.

[0003] In the existing drawing die design, the replacement of the blank holder is often a complicated and time-consuming process. The traditional design usually tightly connects the blank holder with other parts of the die, resulting in the operator spending a lot of time and energy to disassemble and install the blank holder when it is necessary to replace the blank holder to meet different production needs. This design not only increases the production preparation time and reduces production efficiency, but also has certain shortcomings. Utility Model Content

[0004] The purpose of the utility model is to make up for the deficiencies of the prior art and provide a drawing die edge pressing mechanism.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a drawing die edge clamping mechanism, including a lower concave die, the top of the lower concave die is fixedly connected with two groups of guide columns, the outer surface of the guide column is slidably connected with an upper punch, a edge clamping ring is arranged above the lower concave die, a slot one is opened inside the edge clamping ring, a slot two is opened inside the edge clamping ring, a buffer pad is fixedly connected to the top of the lower concave die, and the top of the buffer pad contacts the bottom of the edge clamping ring, a group of limiting mechanisms are arranged above the lower concave die, and a group of clamping mechanisms are arranged above the lower concave die.

[0006] Furthermore, the limiting mechanism includes a support frame, and the outer surface of the support frame is fixedly connected to the outer surface of the lower die, the inner wall of the support frame is slidably connected with an insertion rod 1, and the insertion rod 1 is inserted into the interior of the slot 2, and the end of the insertion rod 1 away from the pressure ring is fixedly connected with a pull plate.

[0007] Furthermore, an elastic member is sleeved on the outer surface of the insert rod 1, one end of the elastic member is fixedly connected to the outer surface of the support frame, and the other end of the elastic member is fixedly connected to the outer surface of the pull plate.

[0008] Furthermore, the clamping mechanism includes a fixed plate, and the bottom surface of the fixed plate is fixedly connected to the upper surface of the lower concave mold, the inner wall of the fixed plate is rotatably connected to a bidirectional screw, and the outer surface of the bidirectional screw is fixedly connected to a knob.

[0009] Furthermore, the outer surface of the bidirectional screw is threadedly connected to a support plate, and the bottom surface of the support plate is slidably connected to the upper surface of the lower concave mold.

[0010] Furthermore, a second insertion rod is fixedly connected to the outer surface of the support plate, and the second insertion rod is inserted into the interior of the first slot.

[0011] Compared with the prior art, the edge holding mechanism of the drawing die has the following beneficial effects:

[0012] 1. The utility model can quickly fix and limit the pressure ring by setting a clamping mechanism, and can perform secondary limit on the two parts of the pressure ring by setting a limiting mechanism. The limiting mechanism and the clamping mechanism cooperate with each other, so that the pressure ring can be easily disassembled and assembled, which reduces the production preparation time and improves the production efficiency.

[0013] 2. The utility model can drive the insertion rod to move by pulling the pull plate. At this time, the pull plate will stretch the elastic part, causing the elastic part to deform and store a certain amount of elastic potential energy. When the pull plate is released, the stretched elastic part will release the elastic potential energy, thereby driving the pull plate to move in the opposite direction, and at the same time driving the insertion rod to move in the opposite direction, thereby achieving a rapid resetting effect of the pull plate and the insertion rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional front view structural schematic diagram of the utility model;

[0015] Figure 2 It is a partial structural schematic diagram of the utility model;

[0016] Figure 3 It is a schematic diagram of the limiting mechanism of the utility model;

[0017] Figure 4 It is a schematic diagram of the clamping mechanism of the utility model.

[0018] In the figure: 1. lower concave die; 2. guide column; 3. upper punch; 4. pressure ring; 5. slot one; 6. slot two; 7. buffer pad; 8. limit mechanism; 801. pull plate; 802. insertion rod one; 803. support frame; 804. elastic member; 9. clamping mechanism; 901. fixing plate; 902. bidirectional screw; 903. knob; 904. support plate; 905. insertion rod two. DETAILED DESCRIPTION

[0019] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0020] The present embodiment provides a drawing die edge holding mechanism. The utility model can quickly fix and limit the edge holding ring 4 by setting a clamping mechanism 9. The two parts of the edge holding ring 4 can be limited for a second time by setting a limiting mechanism 8. The limiting mechanism 8 and the clamping mechanism 9 cooperate with each other to facilitate the disassembly and assembly of the edge holding ring 4, thereby reducing the production preparation time and improving the production efficiency.

[0021] See also Figures 1 to 4 A drawing die edge clamping mechanism includes a lower concave die 1, the top of the lower concave die 1 is fixedly connected with two groups of guide columns 2, and the outer surface of the guide column 2 is slidably connected with an upper punch 3.

[0022] The guide column 2 can guide and limit the upper punch 3 during the descending process, thereby preventing the upper punch 3 from tilting, thereby improving the stability of the upper punch 3 when drawing the workpiece.

[0023] A blank holder 4 is arranged above the lower die 1 .

[0024] The pressure ring 4 is divided into two parts, which can facilitate its disassembly and installation.

[0025] A slot 1 5 is provided inside the pressure ring 4 , and a second insertion rod 905 is fixedly connected to the outer surface of the support plate 904 , and the second insertion rod 905 is inserted into the inside of the slot 1 5 .

[0026] The slot 1 5 is a square slot, which matches with the second insertion rod 905. By inserting the second insertion rod 905 into the slot 1 5, the two parts of the pressure ring 4 can be clamped and fixed.

[0027] A slot 2 6 is provided inside the pressure ring 4 , and an insert rod 1 802 is slidably connected to the inner wall of the support frame 803 , and the insert rod 1 802 is inserted into the inside of the slot 2 6 .

[0028] The diameter of the slot 2 6 matches that of the insert rod 1 802 . The insert rod 1 802 inserted into the slot 2 6 can limit the blank holder 4 , thereby preventing it from shaking up and down and improving the stability of the blank holder 4 .

[0029] A buffer pad 7 is fixedly connected to the top of the lower die 1 , and the top of the buffer pad 7 is in contact with the bottom of the blank holder 4 .

[0030] The buffer pad 7 can buffer the pressure exerted by the workpiece on the blank holder 4, thereby reducing the degree of damage to the blank holder 4.

[0031] A set of limiting mechanisms 8 is provided above the lower concave die 1 , and a set of clamping mechanisms 9 is provided above the lower concave die 1 .

[0032] The limiting mechanism 8 includes a support frame 803 , and the outer surface of the support frame 803 is fixedly connected to the outer surface of the lower concave die 1 , and the end of the insertion rod 802 away from the pressure ring 4 is fixedly connected to a pull plate 801 .

[0033] An elastic member 804 is sleeved on the outer surface of the insertion rod 1 802 .

[0034] The elastic member 804 is made of a spring and has elastic potential energy, and can drive the insertion rod 802 to quickly reset.

[0035] One end of the elastic member 804 is fixedly connected to the outer surface of the support frame 803 , and the other end of the elastic member 804 is fixedly connected to the outer surface of the pull plate 801 .

[0036] By pulling the pull plate 801, the insertion rod 802 can be driven to move along. At this time, the pull plate 801 will stretch the elastic member 804, causing the elastic member 804 to deform and store a certain amount of elastic potential energy. When the pull plate 801 is released, the stretched elastic member 804 will release the elastic potential energy, thereby driving the pull plate 801 to move in the opposite direction, and at the same time driving the insertion rod 802 to move in the opposite direction, thereby achieving a rapid reset effect of the pull plate 801 and the insertion rod 802.

[0037] The clamping mechanism 9 includes a fixed plate 901 , and the bottom surface of the fixed plate 901 is fixedly connected to the upper surface of the lower concave mold 1 , the inner wall of the fixed plate 901 is rotatably connected to a bidirectional screw 902 , and the outer surface of the bidirectional screw 902 is fixedly connected to a knob 903 .

[0038] The outer surface of the bidirectional screw 902 is threadedly connected to a support plate 904 , and the bottom surface of the support plate 904 is slidably connected to the upper surface of the lower concave mold 1 .

[0039] Turn the knob 903 counterclockwise, and the knob 903 will drive the bidirectional screw 902 to rotate, which will drive the two support plates 904 to move away from each other, and at the same time drive the two insertion rods 905 to move away from each other, so that they can be moved out of the slot 1 5 and release the fixed limit on the pressure ring 4. The reverse operation can insert the insertion rod 2 905 into the slot 1 5 and achieve the fixed limit effect on the pressure ring 4.

[0040] Working principle: When the pressure ring 4 needs to be disassembled, the knob 903 needs to be rotated counterclockwise first. At this time, the knob 903 will drive the bidirectional screw 902 to rotate, and then drive the two support plates 904 to move away from each other, and at the same time drive the two insertion rods 905 to move away from each other, so that they can be moved out of the slot 5 and release the fixed limit of the pressure ring 4, and then the pull plate 801 can be pulled away from the pressure ring 4. At this time, the pull plate 801 will drive the insertion rod 1 802 to move with it. At this time, the pull plate 801 will stretch the elastic member 804, causing the elastic member 804 to deform and store a certain amount of elastic potential energy. At this time, the insertion rod 1 802 can be moved out of the slot 2 6 and the limit on the pressure ring 4 can be released, so that the pressure ring 4 can be quickly disassembled. When installing the pressure ring 4, the reverse operation can achieve the quick installation effect of the pressure ring 4.

[0041] In the description of the present utility model, it should be understood that the terms "upper", "lower", "left", "right", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present utility model. In addition, "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0042] It should be noted that the standard parts used in the utility model can be purchased from the market, special-shaped parts can be customized according to the instructions and drawings, and the specific connection methods of each part adopt mature conventional means such as bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, and the inventor will not elaborate on them here.

[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A drawing die edge holding mechanism, comprising a lower concave die (1), characterized in that: The top of the lower die (1) is fixedly connected to two groups of guide columns (2), the outer surface of the guide column (2) is slidably connected to the upper punch (3), a pressure ring (4) is arranged above the lower die (1), a slot one (5) is provided inside the pressure ring (4), a slot two (6) is provided inside the pressure ring (4), a buffer pad (7) is fixedly connected to the top of the lower die (1), and the top of the buffer pad (7) is in contact with the bottom of the pressure ring (4), a group of limiting mechanisms (8) are arranged above the lower die (1), and a group of clamping mechanisms (9) are arranged above the lower die (1).

2. A drawing die edge holding mechanism according to claim 1, characterized in that: The limiting mechanism (8) includes a support frame (803), and the outer surface of the support frame (803) is fixedly connected to the outer surface of the lower concave mold (1), the inner wall of the support frame (803) is slidably connected with an insertion rod 1 (802), and the insertion rod 1 (802) is inserted into the interior of the slot 2 (6), and the end of the insertion rod 1 (802) away from the pressure ring (4) is fixedly connected to a pull plate (801).

3. A drawing die edge holding mechanism according to claim 2, characterized in that: An elastic member (804) is sleeved on the outer surface of the insertion rod (802), one end of the elastic member (804) is fixedly connected to the outer surface of the support frame (803), and the other end of the elastic member (804) is fixedly connected to the outer surface of the pull plate (801).

4. The edge holding mechanism of a drawing die according to claim 1, characterized in that: The clamping mechanism (9) comprises a fixed plate (901), wherein the bottom surface of the fixed plate (901) is fixedly connected to the upper surface of the lower concave mold (1), the inner wall of the fixed plate (901) is rotatably connected to a bidirectional screw (902), and the outer surface of the bidirectional screw (902) is fixedly connected to a knob (903).

5. A drawing die edge holding mechanism according to claim 4, characterized in that: The outer surface of the bidirectional screw (902) is threadedly connected to a support plate (904), and the bottom surface of the support plate (904) is slidably connected to the upper surface of the lower concave mold (1).

6. A drawing die edge holding mechanism according to claim 5, characterized in that: The outer surface of the support plate (904) is fixedly connected with a second insertion rod (905), and the second insertion rod (905) is inserted into the interior of the first slot (5).

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