A quick-change locking device for die punching

Abstract

This utility model discloses a quick-change locking device for die punches in the field of powder metallurgy. It includes a locking pad and a locking cover fixedly connected by several locking bolts. A vertically penetrating mounting hole is provided in the center of the locking cover. An annular lower support step is provided on the inner wall of the mounting hole, and an adjusting pressure plate is correspondingly provided on the lower support step. The adjusting pressure plate presses and fixes the locking die punch to the lower side of the locking pad. Bolt mounting holes are vertically penetrating the locking cover and are arranged along an arc. Mounting holes and disassembly holes are respectively provided at the left and right ends of the bolt mounting holes. An upper support step is provided at the mounting hole of each bolt mounting hole. Each bolt mounting hole corresponds one-to-one with each locking bolt. This utility model enables convenient die mounting and quick installation and disassembly, eliminating the need to replace the locking cover; only the locking die punch and the corresponding adjusting pressure plate need to be replaced.

Description

Technical Field

[0001] This utility model belongs to the field of powder metallurgy, and specifically relates to a quick-change locking device for die punches. Background Technology

[0002] The die punch is a core component in powder metallurgy molds, achieving precision forming by adjusting the powder loading volume and pressing stroke. This mold belongs to the pressing process tool and plays a crucial role in industrial production by improving material utilization and ensuring the uniformity of product density.

[0003] In the existing technology, the ordinary locking device uses four bolts to press the locking cover against the die and fix it on the locking pad. When disassembling, the four bolts need to be unscrewed one by one. Only after all four bolts have been unscrewed from the locking pad can the locking cover be removed. At this time, the die required for the next production needs to be replaced. If the die base is not the same size, a suitable locking cover needs to be replaced.

[0004] The disadvantages of this locking device are: 1. When locking the die punch, the installer needs to hold the locking cover and the die punch by hand. Larger die punches will have added weight to the locking cover, making it difficult to support with one hand and risking the die falling and breaking. 2. When tightening the bolts, each bolt must be tightened individually, rotating from the threaded section until it can no longer be rotated, which takes a long time. 3. Similarly, during disassembly, each bolt must be unscrewed from the locked position until it is completely removed from the locking cover, which also takes a long time. 4. When the die punch base has different sizes, the locking cover needs to be replaced. There are many types of covers, and checking the matching size takes a long time. Utility Model Content

[0005] The purpose of this invention is to provide a quick-change locking device for a die punch, which enables convenient die installation and rapid disassembly. It eliminates the need to replace the locking cover; only the locking die punch and the corresponding adjusting plate need to be replaced.

[0006] The purpose of this utility model is achieved as follows: A quick-change locking device for a die-casting includes a locking pad and a locking cover fixedly connected by several locking bolts. The locking pad and the locking cover are arranged vertically and correspondingly. A mounting hole is vertically opened through the middle of the locking cover. An annular lower support step is provided on the inner wall of the mounting hole. An adjusting pressure plate is correspondingly provided on the lower support step. The adjusting pressure plate presses and fixes the locking die-casting to the lower side of the locking pad. Several bolt mounting holes are opened on the locking cover at circumferential intervals. The bolt mounting holes are vertically opened through the locking cover and are arranged along an arc. The left and right ends of the bolt mounting holes are respectively provided with mounting holes and disassembly holes. An upper support step is provided at the mounting hole of the bolt mounting hole. Each bolt mounting hole corresponds to each locking bolt.

[0007] This invention uses four bolts to tighten the locking cover, which in turn tightens the adjusting plate, which in turn presses the locking die punch onto the locking pad. For disassembly, simply loosen the four bolts and rotate them 2-3 threads to lower the locking cover by 1mm. At this point, the locking cover is loose. Rotate the loosened locking cover to the through-hole position of the disassembly hole. The bolt cap can then pass through the through-hole of the locking cover. The locking cover, adjusting plate, and locking die punch can then be removed together. Finally, replace the locking die punch and the matching adjusting plate. Compared with existing technologies, the advantages of this invention are: 1. When locking the die punch, the installer only needs to assemble the locking cover, adjusting plate, and die punch in advance, then pass them through the locking bolts and rotate them to the top position. The locking cover will then be suspended by the bolt cap, eliminating the need for the installer to support the die punch and reducing the risk of the die falling. 2. When tightening the bolts, simply turn each bolt 2-3 threads to secure it, which is highly efficient. 3. When disassembling, simply loosen each bolt 2-3 threads. The locking cap will then be loose. Rotate the locking cap in the reverse direction to the disassembly position. The bolt cap can then pass through the through hole on the locking cap, allowing you to remove the die. 4. If the die base has different sizes, simply replace the adjusting plate. The locking cap is a universal part and easy to replace.

[0008] As a further improvement of this utility model, when the locking cover is locked and fixed on the locking pad, the locking bolt passes vertically through the mounting hole corresponding to the bolt mounting hole and is fixedly connected to the locking pad. The upper support step is suspended on the cap of the locking bolt. When the locking cover needs to be disassembled, the locking bolt is loosened, and the locking cover is rotated so that the locking bolt enters the disassembly hole. This facilitates the installation and disassembly of the locking cover, adjusting the pressure plate, and locking die. The locking bolt is always connected to the locking pad, and installation and disassembly only require rotating 2 to 3 threads.

[0009] As a further improvement of this utility model, the inner walls of the mounting hole and the disassembly hole of the bolt mounting hole are set to correspond to the cap of the locking bolt.

[0010] As a further improvement of this utility model, an embedded groove is provided on the lower side of the upper support step corresponding to the cap of the locking bolt. When the locking cover is fixed, the upper end of the cap of the locking bolt is embedded into the embedded groove.

[0011] As a further improvement of this utility model, the axes of the locking pad, locking cover, adjusting plate and locking die are coincident, and the bolt mounting holes are evenly distributed around the central axis of the locking die in the circumferential direction.

[0012] As a further improvement of this utility model, the axes of the locking cover, the mounting hole, and the lower support step are coincident, and the adjusting plate is correspondingly set with the inner wall of the mounting hole.

[0013] As a further improvement of this utility model, the adjusting pressure plate has a through hole for the locking die punch to pass through, and the upper end of the locking die punch has an outer step that supports it on the adjusting pressure plate. The adjusting pressure plate presses and fixes the locking die punch to the lower side of the locking pad. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a bottom view of the present invention.

[0016] Figure 3 This is an exploded view of the present invention.

[0017] Figure 4 This is a cross-sectional view of the present invention.

[0018] Figure 5 This is a schematic diagram of the structure of the locking cover of this utility model after disassembly.

[0019] Figure 6 This is a schematic diagram of the locking gland structure.

[0020] Figure 7 This is a schematic diagram of the locking gland structure.

[0021] Among them, 1 is the locking bolt, 1a is the cap, 2 is the locking pad, 3 is the locking cover, 4 is the mounting hole, 5 is the lower support step, 6 is the adjusting pressure plate, 7 is the locking die punch, 8 is the bolt mounting hole, 8a is the mounting position hole, 8b is the disassembly position hole, 801 is the upper support step, 801a is the inner groove, 9 is the through hole, and 10 is the outer step. Detailed Implementation

[0022] like Figure 1-7 As shown, a quick-change locking device for a die punch includes a locking pad 2 and a locking cover 3 fixedly connected by several locking bolts 1. The locking pad 2 and the locking cover 3 are arranged vertically and vertically. A mounting hole 4 is vertically opened through the middle of the locking cover 3. An annular lower support step 5 is provided on the inner wall of the mounting hole 4. An adjusting pressure plate 6 is correspondingly provided on the lower support step 5. The adjusting pressure plate 6 presses and fixes the locking die punch 7 to the lower side of the locking pad 2. A through hole 9 is opened on the adjusting pressure plate 6 to allow the locking die punch 7 to pass through. The upper end of the locking die punch 7 is provided with An outer step 10 is supported on the adjusting pressure plate 6; the adjusting pressure plate 6 presses and fixes the locking die punch 7 to the lower side of the locking pad 2; the locking cover 3 has a number of bolt mounting holes 8 distributed circumferentially, the bolt mounting holes 8 are set vertically through the locking cover 3, the bolt mounting holes 8 are set along the arc, the left and right ends of the bolt mounting holes 8 are respectively provided with mounting position holes 8a and disassembly position holes 8b, the mounting position holes 8a of the bolt mounting holes 8 are provided with an upper support step 801, and each bolt mounting hole 8 corresponds to each locking bolt 1.

[0023] When the locking cover 3 is locked and fixed on the locking pad 2, the locking bolt 1 passes vertically through the mounting hole 8a corresponding to the bolt mounting hole 8 and is fixedly connected to the locking pad 2. The upper support step 801 is suspended on the cap 1a of the locking bolt 1. When the locking cover 3 needs to be removed, the locking bolt 1 is loosened, and the locking cover 3 is rotated so that the locking bolt 1 enters the removal hole 8b. This facilitates the installation and removal of the locking cover 3, the adjusting pressure plate 6, and the locking die 7. The locking bolt 1 is always connected to the locking pad 2, and installation and removal only require rotating 2 to 3 threads. The inner walls of the mounting hole 8a and the removal hole 8b of the bolt mounting hole 8 are set corresponding to the cap 1a of the locking bolt 1. The lower side of the upper support step 801 has an embedded groove 801a corresponding to the cap 1a of the locking bolt 1. When the locking cover 3 is fixed, the upper end of the cap 1a of the locking bolt 1 is embedded in the embedded groove 801a.

[0024] The axes of locking pad 2, locking cover 3, adjusting plate 6, and locking die 7 coincide, and the bolt mounting holes 8 are evenly distributed circumferentially around the central axis of locking die 7. The axes of locking cover 3, mounting hole 4, and lower support step 5 coincide, and the adjusting plate 6 is correspondingly positioned to the inner wall of mounting hole 4.

[0025] This utility model can be tightened by four bolts to press the locking cover 3, which presses the adjusting plate 6, and the adjusting plate 6 presses the locking die 7 to fix it on the locking pad 2. When disassembling, simply loosen the four bolts and rotate them by 2 to 3 threads to lower the locking cover 3 by 1 mm. At this time, the locking cover 3 is in a loose state. Rotate the loose locking cover 3 at an angle to the through hole position of the disassembly position hole 8b. At this time, the bolt cap 1a can pass through the through hole of the locking cover 3. Then, remove the locking cover 3, the adjusting plate 6, and the locking die 7 together. Then replace the locking die 7 and the matching adjusting plate 6. The advantages of this utility model are as follows: 1. When locking the die punch 7, the die assembler only needs to pre-assemble the locking cover 3, adjusting plate 6, and die punch, then pass the entire assembly through the locking bolt 1 and rotate it to the top position. At this time, the locking cover 3 will be suspended by the bolt cap platform 1a, and the die assembler does not need to support the die punch by hand, eliminating the risk of the die falling. 2. When locking the bolt 1, only 2-3 threads need to be turned on each bolt to lock it, which is highly efficient. 3. When disassembling, only 2-3 threads need to be loosened on each bolt. At this time, the locking cover 3 is in a loose state. Rotate the locking cover 3 in the opposite direction to the disassembly position hole 8b. At this time, the bolt cap can pass through the through hole on the locking cover 3 to remove the die punch. 4. When the die punch base specifications are different sizes, only the adjusting plate 6 needs to be replaced. The locking cover 3 is a universal part, which is easy to replace.

[0026] This utility model is not limited to the above embodiments. Based on the technical solutions disclosed in this utility model, those skilled in the art can make some substitutions and modifications to some of the technical features without creative labor, and these substitutions and modifications are all within the protection scope of this utility model.

Claims

1. A die impact quick change locking device, comprising a locking base plate and a locking gland fixedly connected by a plurality of locking bolts, the locking base plate and the locking gland being arranged in correspondence, characterized in that, The locking cover has a vertically penetrating mounting hole in the middle. The inner wall of the mounting hole is provided with an annular lower support step. An adjusting pressure plate is correspondingly provided on the lower support step. The adjusting pressure plate presses and fixes the locking die punch to the lower side of the locking pad. The locking cover has a number of bolt mounting holes distributed circumferentially. The bolt mounting holes are vertically penetrating the locking cover and are arranged along an arc. The left and right ends of the bolt mounting holes are respectively provided with mounting holes and disassembly holes. An upper support step is provided at the mounting hole of the bolt mounting hole. Each bolt mounting hole corresponds to each locking bolt.

2. A die impact quick change locking device according to claim 1, wherein When the locking cover is locked and fixed on the locking pad, the locking bolt passes vertically through the mounting hole of the corresponding bolt mounting hole and is fixedly connected to the locking pad. The upper support step is suspended on the cap of the locking bolt. When the locking cover needs to be removed, the locking bolt is loosened and the locking cover is rotated so that the locking bolt enters the removal hole.

3. A die impact quick change locking device according to claim 1 or 2, characterized in that, The inner walls of the mounting holes and disassembly holes of the bolt mounting holes are set to correspond to the caps of the locking bolts.

4. A die impact quick change locking device according to claim 1 or 2, characterized in that, An embedded groove is provided on the lower side of the upper support step corresponding to the cap of the locking bolt.

5. A die impact quick change locking device according to claim 1 or 2, wherein The axes of the locking pad, locking cover, adjusting plate and locking die are coincident, and the bolt mounting holes are evenly distributed circumferentially around the central axis of the locking die.

6. A die impact quick change locking device according to claim 1 or 2, wherein The axes of the locking cap, mounting hole, and lower support step coincide, and the adjusting pressure plate is set to correspond to the inner wall of the mounting hole.

7. A die impact quick change locking device according to claim 1 or 2, wherein The adjusting pressure plate has a through hole that allows the locking die punch to pass through, and the upper end of the locking die punch has an outer step that is supported on the adjusting pressure plate.

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