Stamping die with quick-changing punching cutter block

Abstract

The utility model relates to the field of stamping dies, and discloses a stamping die with a quick-changing punching cutter block, which comprises a base and a bottom die arranged on the base, a switching unit is arranged between the bottom die and the base, and the switching unit comprises a sliding bottom plate, a power part, a mounting base and a punching cutter arranged on the mounting base. A first oblique wedge guide block part is arranged on the sliding bottom plate, a second oblique wedge guide block part opposite to the first oblique wedge guide block part is arranged on the upper surface of the mounting base, and the power part is mounted on the bottom die and can drive the sliding bottom plate to slide in a reciprocating manner. According to the stamping die, the working state of the die can be rapidly switched.

Description

Technical Field

[0001] This utility model relates to the field of stamping dies, specifically to a stamping die with a quick-change cutting blade block. Background Technology

[0002] During the use of stamping dies, some cutting blades exist in both active and inactive states. These two states correspond to whether a particular area of ​​the part requires cutting. Traditionally, the blades in this area are manually disassembled and reassembled to switch states. This method is inefficient, as repeated manual disassembly and reassembly affects the installation accuracy of the blades and reduces the lifespan of the die.

[0003] As a core piece of equipment in the metal processing industry, stamping dies directly impact production efficiency and product quality due to the flexibility and reliability of their cutting blocks. In the machining of complex parts, it is often necessary to switch between different cutting states (such as punching and trimming) according to product requirements. Traditional solutions typically achieve this by manually disassembling or installing specific cutting blocks. However, this method has some drawbacks. Frequent disassembly and assembly of cutting blocks requires machine downtime, extending the production cycle. Especially in small-batch, multi-variety production, manual adjustments account for a significant portion of the time. Repeated manual disassembly and assembly can easily lead to misalignment of the cutting block positioning reference. Accumulated errors reduce cutting consistency and can even cause uneven die clearance, cutting edge breakage, and other problems, shortening the die's lifespan. Therefore, there is an urgent need for a stamping die capable of quickly switching between different working states. Utility Model Content

[0004] The present invention aims to provide a stamping die with a quick-change punching block, so as to provide a stamping die that can quickly switch the working state of the die.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a stamping die for quick-change punching blade blocks, comprising a base and a bottom die disposed on the base, a switching unit provided between the bottom die and the base, the switching unit comprising a sliding base plate, a power unit, a mounting base and a punching blade disposed on the mounting base, a first inclined guide block portion provided on the sliding base plate, a second inclined guide block portion opposite to the first inclined guide block portion on the upper surface of the mounting base, the power unit being mounted on the bottom die and capable of driving the sliding base plate to slide back and forth.

[0006] The beneficial effects of this solution are as follows: Through the aforementioned configuration, the power unit drives the sliding base plate to slide back and forth. The punching blade is fixed on the mounting base. The upper surface of the mounting base has a second inclined guide block opposite to the first inclined guide block. When the sliding base plate slides, the first and second inclined guide blocks slide relative to each other, causing the mounting base to rise and fall, which in turn causes the punching blade to rise and fall. When the punching blade rises, it can perform punching and cutting; when the punching blade falls, it switches to a non-working state. The automatic switching mechanism reduces the disassembly and repeated installation of the blade, reducing losses caused by human error during disassembly and assembly. Through the cooperation of the sliding base plate and guide blocks, the rising and falling process of the punching blade is relatively smooth, improving the system's stability and helping to reduce production interruptions caused by improper blade switching.

[0007] Preferably, as an improvement, the bottom mold has a cutting hole in the center, and the mounting base is slidably disposed in the cutting hole.

[0008] The beneficial effects are as follows: A cutting hole is opened in the center of the bottom mold, and the mounting base is slidably set in the cutting hole, which effectively controls the movement trajectory of the punching blade or blade block, so that it always slides up and down in the cutting hole. This can ensure the precise alignment of the punching blade block or punching tool inside the mold, ensure the stability of the punching operation, avoid punching errors caused by inaccurate positioning, and thus ensure the accuracy and consistency of the product.

[0009] Preferably, as an improvement, a cutting edge is fixed circumferentially on the upper surface of the punching blade.

[0010] Preferably, as an improvement, the punching cutter is fixed with multiple limiting screws, and the sliding base plate has the same number of first sliding holes as the limiting screws, so that the bottom end of the limiting screw can be inserted into the first sliding hole and slidably connected with it.

[0011] The beneficial effects are as follows: when the sliding base plate is in motion, when the first inclined guide block and the second inclined guide block slide relative to each other, the limiting screws slide along the first sliding hole, ensuring that the punching cutter always stays on the correct trajectory, ensuring precise control of the cutter position, preventing the sliding base plate or the cutter from deviating from the predetermined position, and ensuring the stability and consistency of the punching and cutting process.

[0012] Preferably, as an improvement, the bottom surface of the mounting base is also provided with multiple sliding pillars, and the sliding base plate has a second sliding hole with the same number of sliding pillars, so that the bottom end of the sliding pillar can be inserted into the second sliding hole and slidably connected with it.

[0013] Preferably, as an improvement, a stepped ring is provided above the cutting hole, and multiple spring seats are fixed around the mounting base. It also includes multiple return springs, with the two ends of the return springs abutting against the stepped ring and the spring seats, respectively.

[0014] The beneficial effect is that when the sliding base plate is reset and cut to a non-working state under the action of the return spring, the mounting base quickly resets under the action of the elastic force, avoiding the impact of sliding resistance and other factors on the next processing step.

[0015] Preferably, as an improvement, it also includes a locking part, which includes a slide rod. One end of the slide rod is fixedly connected to the sliding base plate, and the other end extends out of the base. Two annular grooves are opened on the slide rod, and a sliding plate that can be engaged with the annular grooves is slidably provided on the base.

[0016] The beneficial effects are as follows: With the above settings, when the sliding base plate slides to the set position, the slide plate can be inserted into the ring groove for limiting, ensuring that the sliding base plate remains stable for a period of time and is not easily displaced by pressure and vibration, thus maintaining a stable working state.

[0017] Preferably, as an improvement, the power unit is a telescopic cylinder.

[0018] Preferably, as an improvement, the upper surface of the mounting base and the lower surface of the punching blade are provided with multiple grooves in the circumferential direction, and the mounting base also includes multiple limiting blocks that can be slidably installed into the grooves.

[0019] The beneficial effects are as follows: during installation, after the limiting strip is pre-installed into the groove on the mounting base, the punching blade is placed on the mounting base accordingly and the limiting strip is inserted into the groove on the lower surface of the punching blade to ensure that the two are precisely aligned. Then, the two are fixedly connected by the limiting screw. At the same time, the limiting strip can prevent the punching blade and the mounting base from being misaligned. Attached Figure Description

[0020] Figure 1 This is an exploded view of an embodiment of the present utility model;

[0021] Figure 2 This is a schematic diagram of the sliding base plate structure according to an embodiment of the present utility model;

[0022] Figure 3 This is a schematic diagram of the locking part in an embodiment of the present utility model. Detailed Implementation

[0023] The following detailed description illustrates the specific implementation method:

[0024] The reference numerals in the accompanying drawings include: base 1, bottom mold 2, sliding base plate 3, telescopic cylinder 4, mounting base 5, punching blade 6, first inclined guide block 7, second inclined guide block 8, cutting hole 9, cutting blade 10, limiting screw 11, first sliding hole 12, sliding column 13, second sliding hole 14, stepped ring 15, spring seat 16, sliding rod 17, ring groove 18, sliding plate 19, limiting strip 20.

[0025] Example

[0026] The implementation examples are basically as follows Figures 1-3 As shown, Figure 1 and Figure 2 The stamping die shown includes a quick-change punching cutter 6 pieces, comprising a base 1 and a bottom die 2 disposed on the base 1. A switching unit is provided between the bottom die 2 and the base 1. The switching unit includes a sliding base plate 3, a power unit, a mounting base 5, and punching cutters 6 disposed on the mounting base 5. A first inclined guide block 7 is provided on the lower surface of the sliding base plate 3, and a second inclined guide block 8 is provided on the upper surface of the mounting base 5 opposite to the first inclined guide block 7. The power unit is mounted on the bottom die 2 and can drive the sliding base plate 3 to slide back and forth. In this embodiment, the power unit is a telescopic cylinder 4. When the sliding base plate 3 slides, the first inclined guide block section 7 and the second inclined guide block section 8 slide relative to each other. The first inclined guide block section 7 includes multiple first inclined guide blocks arrayed at the bottom of the punching blade 6, with one side of each first inclined guide block being an inclined surface. The second inclined guide block section 8 includes multiple second inclined guide blocks, each opposite to the first inclined guide block. The power unit drives the sliding base plate 3 to slide back and forth, causing the mounting base 5 to slide up and down, which in turn drives the punching blade 6 to rise and fall. When the punching blade 6 rises, it can perform punching and cutting; when the punching blade 6 falls, it switches to a non-working state. The automatic switching mechanism reduces the disassembly and repeated installation of the blade blocks, reducing losses caused by human error during disassembly and installation. Through the cooperation of the sliding base plate 3 and the guide blocks, the rising and falling process of the punching blade 6 is relatively smooth, improving the stability of the system and helping to reduce production interruptions caused by improper blade switching. In this embodiment, a cutting hole 9 is opened in the center of the bottom mold 2. The mounting base 5 is slidably disposed in the cutting hole 9, which effectively controls the movement trajectory of the punching blade 6 or the blade block, ensuring that it always slides up and down within the cutting hole 9. This ensures the precise alignment of the punching blade or punching tool inside the mold, ensuring the stability of the punching operation and avoiding punching errors caused by inaccurate positioning. A cutting blade 10 is fixed circumferentially on the upper surface of the punching blade 6.

[0027] Multiple limiting screws 11 are fixed on the punching cutter 6. In this embodiment, there are three limiting screws 11 for fixing the punching cutter 6 and the mounting base 5. The sliding base plate 3 has the same number of first sliding holes 12 as the limiting screws 11. The bottom end of the limiting screw 11 can be inserted into the first sliding hole 12 and slidably connected with it. This ensures that when the sliding base plate 3 moves, when the first inclined guide block 7 and the second inclined guide block 8 slide relative to each other, the limiting screws 11 slide along the first sliding hole 12. This ensures that the punching cutter 6 always stays on the correct trajectory, ensures precise control of the cutter position, prevents the sliding base plate 3 or the cutter from deviating from the predetermined position, and ensures the stability and consistency of the punching and cutting process. The bottom surface of the mounting base 5 is also provided with multiple sliding pillars 13. The sliding base plate 3 has the same number of second sliding holes 14 as the sliding pillars 13. The bottom end of the sliding pillar 13 can be inserted into the second sliding hole 14 and slidably connected with it. The length of the second sliding hole 14 can limit the sliding stroke of the punching cutter 6. In this embodiment, a stepped ring 15 is provided above the cutting hole 9, and multiple spring seats 16 are fixed around the mounting base 5. The mounting base 5 also includes a number of return springs equal to the number of spring seats 16. In this embodiment, there are four spring seats 16. The two ends of the return springs abut against the stepped ring 15 and the spring seats 16 respectively. Under the force of the return springs, when the sliding base plate 3 resets (i.e., when it is cut to a non-working state), the mounting base 5 quickly resets under the action of elasticity, avoiding the impact of sliding resistance and other factors on the next processing step. Simultaneously, multiple grooves are provided circumferentially on the upper surface of the mounting base 5 and the lower surface of the punching blade 6, and multiple limiting blocks 20 that can be slidably installed into the grooves are also provided. During installation, the limiting blocks 20 are pre-installed into the grooves on the mounting base 5, and the punching blade 6 is placed on the mounting base 5 accordingly, with the limiting blocks 20 inserted into the grooves on the lower surface of the punching blade 6, ensuring precise alignment. Then, the two are fixedly connected by limiting screws 11. The limiting blocks 20 also prevent misalignment between the punching blade 6 and the mounting base 5.

[0028] like Figure 3 As shown, it also includes a locking part, which includes a slide rod 17. One end of the slide rod 17 is fixedly connected to the sliding base plate 3, and the other end extends out of the base 1. Two annular grooves 18 are opened on the slide rod 17. A sliding plate 19 that can be inserted into the annular grooves 18 is slidably provided on the base 1. When the sliding base plate 3 slides to the set position, the sliding plate 19 can be inserted into the annular grooves 18 for limiting, ensuring that the sliding base plate 3 remains stable for a period of time and is not easily displaced by pressure and vibration, thus maintaining a stable working state.

[0029] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A stamping die for quick-change cutting blade blocks, characterized in that: The device includes a base and a bottom mold mounted on the base. A switching unit is provided between the bottom mold and the base. The switching unit includes a sliding base plate, a power unit, a mounting base, and a punching blade mounted on the mounting base. The sliding base plate is provided with a first inclined guide block. The upper surface of the mounting base is provided with a second inclined guide block opposite to the first inclined guide block. The power unit is mounted on the bottom mold and can drive the sliding base plate to slide back and forth.

2. The stamping die for a quick-change punching block according to claim 1, characterized in that: A cutting hole is opened in the center of the bottom mold, and the mounting base is slidably set in the cutting hole.

3. The stamping die for a quick-change punching block according to claim 2, characterized in that: The upper surface of the punching cutter is fixed with a cutting edge in the circumferential direction.

4. The stamping die for a quick-change punching block according to claim 3, characterized in that: The punching cutter is fixed with multiple limit screws, and the sliding base plate has the same number of first sliding holes as the limit screws. The bottom end of the limit screw can be inserted into the first sliding hole and slidably connected with it.

5. A stamping die for quick-change cutting blade blocks according to claim 4, characterized in that: The bottom of the mounting base is also provided with multiple sliding pillars. The sliding base plate has a second sliding hole with the same number of sliding pillars. The bottom end of the sliding pillar can be inserted into the second sliding hole and slidably connected to it.

6. The stamping die for a quick-change punching block according to claim 5, characterized in that: A stepped ring is provided above the cutting hole, and multiple spring seats are fixed around the mounting base. It also includes multiple return springs, with the two ends of the return springs abutting against the stepped ring and the spring seats respectively.

7. A stamping die for quick-change cutting blade blocks according to claim 6, characterized in that: It also includes a locking part, which includes a slide rod. One end of the slide rod is fixedly connected to the sliding base plate, and the other end extends out of the base. Two annular grooves are opened on the slide rod, and a sliding plate that can be engaged into the annular grooves is slidably provided on the base.

8. The stamping die for a quick-change punching block according to claim 7, characterized in that: The power unit is a telescopic cylinder.

9. A stamping die for quick-change cutting blade blocks according to claim 8, characterized in that: The mounting base has multiple grooves circumferentially positioned opposite the upper surface of the punching blade, and also includes multiple limiting blocks that can be slidably installed into the grooves.

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