Stamping die for wire holder of circuit breaker

Abstract

The stamping die comprises a bottom plate, a mounting structure, a collecting structure, a limiting structure, a demolding structure, an adjusting structure, a guide column, a lifting plate, a lower die and an upper die. According to the scheme, the die replacement time is shortened through the mounting structure, the production efficiency is improved, and the labor intensity of operators is reduced; automatic accurate positioning and die assembly avoiding of the plate are achieved through the limiting structure, and the stamping precision and the product consistency are improved; by means of the demolding structure, the workpiece is ejected out of the surface of the lower mold after stamping is completed, the problem that the mold is clamped by the workpiece is solved, and rapid and lossless demolding is achieved; by arranging the collecting structure, stamping waste is collected in the collecting box in the lower die, the cleanliness of a working area is kept, the cleaning time is shortened, by arranging the adjusting structure, an operator is allowed to finely adjust the lower dead center or buffer pressure of the upper die according to actual needs, and the adaptability of the die to different technological parameters is enhanced.

Description

Technical Field

[0001] This invention relates to the field of stamping die technology, specifically to a stamping die for a circuit breaker terminal block. Background Technology

[0002] Circuit breaker terminals are critical components in power systems used to connect circuit breakers to power lines and load lines. The quality of their stamping directly affects the reliability of the connection and electrical safety. Stamping dies are key process equipment for achieving mass production, high efficiency, and high precision. To improve production efficiency, stamping die technology is developing towards integration and continuous production. For example, a utility model patent with authorization announcement number CN222830522U discloses a stamping die for circuit breaker terminals. This die has multiple functional components arranged sequentially along the feeding direction in one cavity, including pre-punching, shaping, embossing, hole expansion, separation, spacing expansion, trimming, and cutting. Its technical advantage is that, through one clamping and continuous feeding, the blank can complete all processing steps from pre-forming to the final product in one die, avoiding repeated transfer between multiple machines or dies, and significantly improving the production efficiency and batch consistency of circuit breaker terminals. However, the upper and lower molds of this mold are fixedly connected to the main frame as one piece, and all functional components are integrated into this mold in a non-removable manner. This means that once the product design changes or a different specification of terminal block needs to be produced, the entire mold must be replaced, which is a relatively heavy and time-consuming process. At the same time, during the stamping process, the positioning of the sheet metal to be processed mainly relies on manual labor or simple stops, making it difficult to guarantee accuracy and consistency, and easily generating scrap. After stamping, the workpiece may get stuck in the lower mold cavity, making demolding difficult and requiring the use of tools to knock it off, which can easily damage the workpiece or the mold. The waste generated during stamping (such as scrap and punching waste) is scattered, making collection inconvenient and affecting the working environment and subsequent cleaning. Summary of the Invention

[0003] The purpose of this invention is to provide a stamping die for circuit breaker terminals to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: A stamping die for a circuit breaker terminal block includes a base plate, four guide columns fixedly connected to the base plate, a lifting plate slidably connected to the four guide columns, an installation structure on the base plate and the lifting plate, a lower die mounted on the base plate via the installation structure, an upper die mounted on the lifting plate via the installation structure, and a limiting structure on the lower die. The limiting structure includes a limiting strip and a limiting groove provided on the limiting strip. The lower mold is provided with two sets of limiting strips, with the two limiting strips in each set arranged symmetrically. A slider is fixedly connected to the bottom end of the limiting strip. The slider is slidably connected to the lower mold. A third spring is fixedly connected between the slider and the lower mold. The upper edge of the limiting groove is inclined. An inclined pressure groove is provided on the limiting strip. Four pressure rollers that can be rolled and connected to the pressure groove are fixedly connected to the upper mold.

[0005] To ensure the linearity and stability of the movement of the limiting bar, as a preferred embodiment of the present invention: a fixed rod passes through the interior of the third spring, the fixed rod is fixedly connected to the interior of the lower mold, and the slider is slidably connected to the fixed rod.

[0006] To facilitate demolding and prevent workpiece jamming and mold damage, a preferred embodiment of the present invention is provided: the lower mold is provided with a demolding structure, the demolding structure includes a connecting strip and two ejector blocks fixedly connected to the connecting strip, a T-shaped connecting strip is slidably connected inside the lower mold, the ejector blocks are slidably connected to the lower mold, a fourth spring is fixedly connected between the connecting strip and the lower mold, a pressing rod is fixedly connected to the connecting strip, and the pressing rod is slidably connected to the lower mold.

[0007] To ensure that the demolding force is applied evenly to the workpiece, as a preferred embodiment of the present invention: a guide strip runs through the interior of the fourth spring, the guide strip is fixedly connected to the interior of the lower mold, and the connecting strip is slidably connected to the guide strip.

[0008] To facilitate rapid clamping and release of the mold, a preferred embodiment of the present invention includes: the mounting structure comprising a mounting frame and a fixing plate; a mounting frame is fixedly connected to both the base plate and the lifting plate; the upper mold and the lower mold are inserted into the mounting frames; two fixing plates are fixedly connected to both the base plate and the lifting plate; two locking blocks are symmetrically slidably connected to each fixing plate; four locking slots are provided on each of the upper and lower molds; the locking blocks engage with the locking slots; a pressing block is slidably connected to the fixing plate; two inclined drive slots are symmetrically provided on each pressing block; a drive shaft is rotatably connected to the locking block; the drive shaft is rollably connected to the drive slot; a fixing block is fixedly connected to the pressing block; and a first spring is fixedly connected between the fixing block and the fixing plate.

[0009] To ensure that the locking block can only slide horizontally in a preset direction and to prevent the first spring from deflecting, as a preferred embodiment of the present invention: two T-shaped guide rails are fixedly connected inside each of the fixed plates, the locking block is slidably connected to the guide rails, a guide shaft passes through the inside of the first spring, the guide shaft is fixedly connected to the inside of the fixed plate, and the fixed block is slidably connected to the guide shaft.

[0010] In order to collect the waste generated during stamping, as a preferred embodiment of the present invention: the lower mold is provided with a collection structure, the collection structure includes a collection box and a handle fixedly connected to the collection box, the collection box is slidably connected inside the lower mold, and an L-shaped sliding plate is slidably connected to the lower mold, the sliding plate abuts against the collection box, the side of the collection box away from the sliding plate abuts against the side of the pressing block, and a second spring is fixedly connected between the sliding plate and the lower mold.

[0011] To ensure smooth skateboard movement, as a preferred embodiment of the present invention, a guide rod is fixedly connected to the skateboard, and the guide rod is slidably connected to the lower mold.

[0012] To adapt to different sheet thicknesses or different process requirements and improve the adaptability of the mold, as a preferred embodiment of the present invention: the guide post is provided with an adjustment structure, the adjustment structure includes an external threaded sleeve and an internal threaded sleeve, the external threaded sleeve is fixedly connected to the guide post, the internal threaded sleeve is threadedly connected to the external threaded sleeve, a fifth spring is clamped between the internal threaded sleeve and the lifting plate, and a rotating block is fixedly connected to the internal threaded sleeve.

[0013] To facilitate operation using a standard wrench, as a preferred embodiment of the present invention, the cross-section of the internal threaded sleeve is a T-shaped structure, and the cross-section of the rotating block is a regular hexagonal structure.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1) Through the set installation structure, the mold can be quickly locked and released by the engagement of the card block and the card slot. With the operation of the pressing block, there is no need to use tools to tighten multiple bolts, which significantly shortens the mold change time, improves production efficiency, and reduces the labor intensity of operators.

[0015] 2) By setting a limit structure, the automatic and precise positioning of the sheet metal and the mold closing avoidance are realized, which improves the stamping accuracy and product consistency and reduces manual intervention.

[0016] 3) Through the demolding structure, the ejector block is driven to eject the workpiece from the surface of the lower mold after stamping, which solves the problem of workpiece jamming, realizes fast and non-destructive demolding, and protects the surface quality of the workpiece and the life of the mold.

[0017] 4) By setting up a collection structure, stamping waste is collected in the collection box inside the lower die, and can be easily removed and cleaned when the lower die is disassembled, keeping the work area clean, reducing cleaning time, and facilitating the centralized treatment of waste.

[0018] 5) The adjustable structure allows the operator to fine-tune the lower stop point or buffer pressure of the upper mold according to actual needs, which enhances the mold's adaptability to different process parameters and improves the equipment's versatility and flexibility. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the connection structure between the lower mold and the collecting structure of the present invention; Figure 3 for Figure 2 The diagram shown is an enlarged view of the structure of part A. Figure 4 This is a schematic diagram of the connection structure between the external threaded sleeve and the internal threaded sleeve of the present invention; Figure 5 for Figure 4 The diagram shown is an enlarged view of the structure of section B. Figure 6 This is a schematic diagram of the connection structure between the lower mold and the mounting frame of the present invention; Figure 7 for Figure 6 The diagram shows an enlarged view of section C. Figure 8 This is a schematic diagram of the connection structure between the guide column and the lifting plate of the present invention; Figure 9 for Figure 8 The diagram shows an enlarged view of the structure of part D.

[0020] In the diagram: 1. Base plate; 2. Mounting structure; 201. Mounting frame; 202. Fixing plate; 203. Pressing block; 204. Drive groove; 205. Guide rail; 206. Locking block; 207. Locking groove; 208. Drive shaft; 209. Fixing block; 210. Guide shaft; 211. First spring; 3. Collection structure; 301. Collection box; 302. Handle; 303. Slide plate; 304. Guide rod; 305. Second spring; 4. Limiting structure; 401. Limiting strip 402. Limiting groove; 403. Pressing groove; 404. Pressing roller; 405. Sliding block; 406. Fixing rod; 407. Third spring; 5. Demolding structure; 501. Connecting strip; 502. Guide strip; 503. Fourth spring; 504. Ejector block; 505. Pressing rod; 6. Adjustment structure; 601. External threaded sleeve; 602. Internal threaded sleeve; 603. Fifth spring; 604. Rotating block; 7. Guide column; 8. Lifting plate; 9. Lower mold; 10. Upper mold. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please see Figure 1-9 The present invention provides a technical solution: a circuit breaker terminal block stamping die, including a base plate 1, four guide columns 7 fixedly connected on the base plate 1, a lifting plate 8 slidably connected on the four guide columns 7, an installation structure 2 provided on the base plate 1 and the lifting plate 8, a lower die 9 installed on the base plate 1 through the installation structure 2, an upper die 10 installed on the lifting plate 8 through the installation structure 2, and a limiting structure 4 provided on the lower die 9; The limiting structure 4 includes a limiting strip 401 and a limiting groove 402 provided on the limiting strip 401. The lower mold 9 is provided with two sets of limiting strips 401, and the two limiting strips 401 in each set are symmetrically arranged. A slider 405 is fixedly connected to the bottom end of the limiting strip 401. The slider 405 is slidably connected to the lower mold 9. A third spring 407 is fixedly connected between the slider 405 and the lower mold 9. The upper edge of the limiting groove 402 is inclined. An inclined pressure groove 403 is provided on the limiting strip 401. Four pressure rollers 404 that can be rolled and connected with the pressure groove 403 are fixedly connected to the upper mold 10.

[0023] In practical use, the sheet metal to be stamped is first placed on the forming surface of the lower mold 9. The edge of the sheet metal will be inserted into the limiting groove 402 between two sets of symmetrical limiting strips 401. As the upper mold 10 moves downward, the pressure roller 404 fixed on the upper mold 10 begins to contact and enter the inclined pressure groove 403 on the limiting strip 401. The pressure roller 404 rolls along the pressure groove 403, generating an outward component force on the limiting strip 401, overcoming the elastic force of the third spring 407, and pushing the limiting strip 401 to slide inward, so that the limiting groove 402 presses the sheet metal, thereby fixing the sheet metal. The limiting strip 401 generates a certain clamping force on the sheet metal to achieve sheet metal positioning. After the upper mold 10 is fully closed and stamping is completed, it begins to return upward. The pressure roller 404 disengages from the pressure groove 403, and the third spring 407 pushes the slider 405 and the limiting strip 401 to reset, returning to the loosened state, preparing for the next sheet metal loading.

[0024] A fixing rod 406 runs through the interior of the third spring 407. The fixing rod 406 is fixedly connected to the interior of the lower mold 9. The slider 405 is slidably connected to the fixing rod 406.

[0025] In practical use, the fixed rod 406 ensures that the slider 405 and the limit bar 401 always slide along a straight trajectory, preventing them from getting stuck or wobbling due to lateral force, and ensuring the reliability and repeatability of the positioning action.

[0026] The lower mold 9 is provided with a demolding structure 5, which includes a connecting strip 501 and two ejector blocks 504 fixedly connected to the connecting strip 501. The connecting strip 501 with a T-shaped cross section is slidably connected inside the lower mold 9. The ejector blocks 504 are slidably connected to the lower mold 9. A fourth spring 503 is fixedly connected between the connecting strip 501 and the lower mold 9. A pressing rod 505 is fixedly connected to the connecting strip 501 and is slidably connected to the lower mold 9.

[0027] In practical use, after stamping, the workpiece may get stuck in the cavity of the lower mold 9 due to shrinkage or other reasons. During stamping, the upper mold 10 will first press the pressing rod 505 located on the lower mold 9. The pressing rod 505 drives the connecting bar 501 to move downward against the elastic force of the fourth spring 503. The downward movement of the connecting bar 501 drives the two ejector blocks 504 fixed on it to move downward synchronously, so that the ejector blocks 504 continue to shrink into the interior of the lower mold 9. When the upper mold 10 continues to press down, the stamping operation is realized. After stamping, the upper mold 10 gradually stops resisting the pressing rod 505. The fourth spring 503 resets and drives the connecting bar 501 and the ejector blocks 504 to rise, smoothly ejecting the workpiece out of the cavity and completing the demolding.

[0028] The fourth spring 503 has a guide bar 502 running through its interior. The guide bar 502 is fixedly connected to the interior of the lower mold 9. The connecting bar 501 is slidably connected to the guide bar 502.

[0029] In practical use, the guide bar 502 provides rigid guidance for the up and down movement of the connecting bar 501, ensuring that the movement direction of the ejector block 504 is vertically upward, and that the force transmission is direct and effective, avoiding uneven ejection force or jamming due to the skewness of the connecting bar 501.

[0030] The mounting structure 2 includes a mounting frame 201 and a fixing plate 202. A mounting frame 201 is fixedly connected to the base plate 1 and the lifting plate 8. The upper mold 10 and the lower mold 9 are inserted into the mounting frame 201. Two fixing plates 202 are fixedly connected to the base plate 1 and the lifting plate 8. Two locking blocks 206 are symmetrically slidably connected to each fixing plate 202. The upper mold 10 and the lower mold 9 are each provided with four slots 207. The locking blocks 206 engage with the slots 207. A pressing block 203 is slidably connected to the fixing plate 202. Two inclined drive grooves 204 are symmetrically provided on each pressing block 203. A drive shaft 208 is rotatably connected to the locking block 206. The drive shaft 208 is slidably connected to the drive groove 204. A fixing block 209 is fixedly connected to the pressing block 203. A first spring 211 is fixedly connected between the fixing block 209 and the fixing plate 202.

[0031] In practical use, when installing the mold, align the lower mold 9 with the mounting frame 201 on the base plate 1 and insert it, and align the upper mold 10 with the mounting frame 201 on the lifting plate 8 and insert it. During the insertion process, first press the pressing block 203 to retract the two locking blocks 206 into the interior of the fixing plate 202. When pressing the pressing block 203, the first spring 211 is compressed, the position of the drive groove 204 changes, and the drive shaft 208 then rolls within the drive groove 204, thereby driving the locking blocks 206 to slide towards each other. When the mold is fully inserted and the locking groove 207 on it is aligned with the position of the locking block 206, release the pressing block 203. 03. Under the restoring force of the first spring 211, the pressing block 203 moves outward, the driving groove 204 pushes the driving shaft 208, and then drives the locking block 206 to extend horizontally and accurately lock into the slot 207 of the mold, realizing automatic locking. When disassembling, simply press the two pressing blocks 203 (for the lower mold 9) or the corresponding pressing block 203 on the lifting plate 8 (for the upper mold 10) at the same time to overcome the force of the first spring 211, drive the groove 204 to move, and pull the locking block 206 back through the driving shaft 208, so that it is disengaged from the slot 207, and the mold can be pulled out from the mounting frame 201.

[0032] Each fixed plate 202 has two T-shaped guide rails 205 fixedly connected inside. The locking block 206 is slidably connected to the guide rails 205. The first spring 211 has a guide shaft 210 passing through it. The guide shaft 210 is fixedly connected to the inside of the fixed plate 202. The fixed block 209 is slidably connected to the guide shaft 210.

[0033] In practical use, the T-shaped guide rail 205 strictly restricts the locking block 206 to slide only in the horizontal direction, preventing it from wobbling up and down or left and right, and ensuring locking accuracy. The guide shaft 210 guides the pressing block 203 and the fixing block 209 to move in a straight line, making the compression and release process of the first spring 211 smooth, and ensuring the reliability and synchronicity of the extension and retraction of the locking block 206.

[0034] The lower mold 9 has a collection structure 3 inside. The collection structure 3 includes a collection box 301 and a handle 302 fixedly connected to the collection box 301. The collection box 301 is slidably connected inside the lower mold 9. A slide plate 303 with an L-shaped cross section is slidably connected to the lower mold 9. The slide plate 303 abuts against the collection box 301. The side of the collection box 301 away from the slide plate 303 abuts against the side of the pressing block 203. A second spring 305 is fixedly connected between the slide plate 303 and the lower mold 9.

[0035] In practical use, the waste generated during the stamping process (such as blanking blanks) falls into the collection box 301 inside the lower die 9 through the blanking hole. When the lower die 9 needs to be installed, as the lower die 9 is pushed into the mounting frame 201 of the base plate 1 and locked, the pressing block 203 on its side will squeeze the collection box 301 inward, so that it is completely retracted into the lower die 9. At the same time, the second spring 305 is compressed. When the waste needs to be cleaned up, first press the pressing block 203 on one side of the handle 302. The pressing block 203 is released from the obstruction of the collection box 301. At this time, the compressed second spring 305 is released, pushing the slide plate 303 outward. The L-shaped structure of the slide plate 303 abuts against the inner side of the collection box 301, thereby pushing the collection box 301 partially out of the shell of the lower die 9. The operator can then easily pull out the collection box 301 completely through the handle 302, empty the waste, and push it back to its original position for the next use.

[0036] A guide rod 304 is fixedly connected to the slide plate 303, and the guide rod 304 is slidably connected to the lower mold 9.

[0037] In actual use, the guide rod 304 ensures that the slide plate 303 moves in a straight line under the action of the second spring 305, smoothly pushing out the collection box 301 and preventing the slide plate 303 from tilting and getting stuck.

[0038] The guide column 7 is provided with an adjustment structure 6, which includes an external threaded sleeve 601 and an internal threaded sleeve 602. The external threaded sleeve 601 is fixedly connected to the guide column 7, and the internal threaded sleeve 602 is threadedly connected to the external threaded sleeve 601. A fifth spring 603 is clamped between the internal threaded sleeve 602 and the lifting plate 8, and a rotating block 604 is fixedly connected to the internal threaded sleeve 602.

[0039] In practical use, when it is necessary to fine-tune the downward termination position of the upper mold 10 or change the mold closing buffer force, a wrench can be used to hold the rotating block 604 and rotate it. Rotating the rotating block 604 clockwise causes the inner threaded sleeve 602 to move downward along the outer threaded sleeve 601, compressing the fifth spring 603. This will cause the lifting plate 8 to drop slightly relative to the reference position of the guide post 7 during the return stroke, or increase the buffer resistance at the end of the downward movement of the upper mold. Rotating counterclockwise has the opposite effect. Through this adjustment, it is possible to adapt to sheet metal of different thicknesses or materials and optimize the stamping effect.

[0040] The internal threaded sleeve 602 has a T-shaped cross-section, and the rotating block 604 has a regular hexagonal cross-section.

[0041] In practical use, the regular hexagonal swivel block 604 is easy to operate with a standard open-end wrench, and the force is convenient and stable.

[0042] Working principle: First, the sheet metal to be stamped is placed on the forming surface of the lower die 9. The edge of the sheet metal will be inserted into the limiting groove 402 between two sets of symmetrical limiting strips 401. As the upper die 10 moves downward, the pressure roller 404 fixed on the upper die 10 begins to contact and enter the inclined pressing groove 403 on the limiting strip 401. The pressure roller 404 rolls along the pressing groove 403, generating an outward component force on the limiting strip 401, overcoming the elastic force of the third spring 407, and pushing the limiting strip 401 to slide inward, so that the limiting groove 402 presses the sheet metal. This fixes the sheet metal, and the limiting strip 401 exerts a certain clamping force on the sheet metal to achieve sheet metal positioning. After the upper mold 10 is fully closed and the stamping is completed, it begins to return upward. The pressure roller 404 disengages from the pressure groove 403, and the third spring 407 pushes the slider 405 and the limiting strip 401 to reset and return to the loosened state, preparing for the next sheet metal loading. The fixing rod 406 ensures that the slider 405 and the limiting strip 401 always slide along a straight trajectory to prevent them from jamming or swaying due to lateral force, thus ensuring the reliability and repeatability of the positioning action. After stamping, the workpiece may get stuck in the cavity of the lower mold 9 due to shrinkage or other reasons. During stamping, the upper mold 10 will first press the pressing rod 505 located on the lower mold 9. The pressing rod 505 drives the connecting bar 501 to move downward against the elastic force of the fourth spring 503. The downward movement of the connecting bar 501 drives the two ejector blocks 504 fixed on it to move downward synchronously, so that the ejector blocks 504 continue to shrink into the interior of the lower mold 9. When the upper mold 10 continues to press down, the stamping operation is realized. After stamping, the upper mold 10 gradually stops resisting the pressing rod 505. The fourth spring 503 resets and drives the connecting bar 501 and the ejector blocks 504 to rise, smoothly ejecting the workpiece out of the cavity and completing the demolding. The guide bar 502 provides rigid guidance for the up and down movement of the connecting bar 501, ensuring that the movement direction of the ejector blocks 504 is vertically upward, and the force transmission is direct and effective, avoiding uneven ejection force or jamming due to the skew of the connecting bar 501. When installing the mold, align the lower mold 9 with the mounting frame 201 on the base plate 1 and insert it. Align the upper mold 10 with the mounting frame 201 on the lifting plate 8 and insert it. During insertion, first press the pressing block 203 to retract the two locking blocks 206 into the interior of the fixing plate 202. When pressing the pressing block 203, the first spring 211 is compressed, the position of the drive groove 204 changes, and the drive shaft 208 rolls within the drive groove 204, thereby driving the locking blocks 206 to slide towards each other. When the mold is fully inserted and the locking groove 207 on it is aligned with the position of the locking blocks 206, release the pressing block 203. Under the restoring force of the first spring 211, the pressing block 203... The outward movement of the drive groove 204 pushes the drive shaft 208, which in turn drives the locking block 206 to extend horizontally and precisely engage in the slot 207 of the mold, achieving automatic locking. For disassembly, simply press both pressing blocks 203 (for the lower mold 9) or the corresponding pressing block 203 on the lifting plate 8 (for the upper mold 10) simultaneously to overcome the force of the first spring 211. The drive groove 204 moves, pulling the locking block 206 back through the drive shaft 208, disengaging it from the slot 207, allowing the mold to be pulled out of the mounting frame 201. The T-shaped guide rail 205 strictly restricts the locking block 206 to slide only horizontally, preventing it from wobbling up and down or left and right, ensuring engagement accuracy. The guide shaft 210 guides the pressing block 203 and the fixing block 209 to move linearly, ensuring smooth compression and release of the first spring 211 and guaranteeing the reliability and synchronicity of the locking block 206's extension and retraction. Waste material generated during the stamping process (such as blanking blanks) falls into the collection box 301 inside the lower die 9 through the blanking hole. When the lower die 9 needs to be installed, as it is pushed into the mounting frame 201 of the base plate 1 and locked, the pressing block 203 on its side will press the collection box 301 inward, causing it to retract completely into the lower die 9, while simultaneously compressing the second spring 305. When it is necessary to clean up the waste material, first press the pressing block 203 on one side of the handle 302, causing the pressing block 203 to disengage from obstructing the collection box 301. When the second spring 305 is released, it pushes the slide plate 303 outward. The L-shaped structure of the slide plate 303 abuts against the inside of the collection box 301, thereby pushing part of the collection box 301 out of the shell of the lower mold 9. The operator can then easily pull the collection box 301 out completely through the handle 302, empty the waste, and push it back to its original position for the next use. The guide rod 304 ensures that the slide plate 303 moves in a straight line under the action of the second spring 305, smoothly pushing out the collection box 301 and preventing the slide plate 303 from tilting and getting stuck. When it is necessary to fine-tune the downward termination position of the upper mold 10 or change the mold closing buffer force, a wrench can be used to hold the rotating block 604 for rotation. Rotating the rotating block 604 clockwise causes the inner threaded sleeve 602 to move downward along the outer threaded sleeve 601, compressing the fifth spring 603. This causes the lifting plate 8 to drop slightly relative to the reference position of the guide post 7 during the return stroke, or increases the buffer resistance at the end of the downward movement of the upper mold. Rotating counterclockwise has the opposite effect. Through this adjustment, it is possible to adapt to sheet metal of different thicknesses or materials and optimize the stamping effect. The regular hexagonal rotating block 604 is easy to operate with a standard open-end wrench, and the force is convenient and stable.

[0043] The contents not described in detail in this description are existing technologies known to those skilled in the art. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A stamping die for a circuit breaker terminal block, comprising a base plate (1), wherein four guide posts (7) are fixedly connected to the base plate (1), and lifting plates (8) are slidably connected to the four guide posts (7), characterized in that, The base plate (1) and the lifting plate (8) are provided with an installation structure (2). The base plate (1) is provided with a lower mold (9) through the installation structure (2). The lifting plate (8) is provided with an upper mold (10) through the installation structure (2). The lower mold (9) is provided with a limiting structure (4). The limiting structure (4) includes a limiting strip (401) and a limiting groove (402) provided on the limiting strip (401). The lower mold (9) is provided with two sets of limiting strips (401). The two limiting strips (401) in each set are symmetrically arranged. A slider (405) is fixedly connected to the bottom end of the limiting strip (401). The slider (405) is slidably connected to the lower mold (9). A third spring (407) is fixedly connected between the slider (405) and the lower mold (9). The upper edge of the limiting groove (402) is inclined. An inclined pressure groove (403) is provided on the limiting strip (401). Four pressure rollers (404) that can be rolled and connected to the pressure groove (403) are fixedly connected on the upper mold (10).

2. The stamping die for a circuit breaker terminal block according to claim 1, characterized in that: The third spring (407) has a fixed rod (406) running through its interior. The fixed rod (406) is fixedly connected to the interior of the lower mold (9). The slider (405) is slidably connected to the fixed rod (406).

3. The circuit breaker terminal block stamping die according to claim 1, characterized in that: The lower mold (9) is provided with a demolding structure (5). The demolding structure (5) includes a connecting strip (501) and two ejector blocks (504) fixedly connected to the connecting strip (501). The lower mold (9) is slidably connected to the connecting strip (501) with a T-shaped cross section. The ejector blocks (504) are slidably connected to the lower mold (9). A fourth spring (503) is fixedly connected between the connecting strip (501) and the lower mold (9). A pressing rod (505) is fixedly connected to the connecting strip (501). The pressing rod (505) is slidably connected to the lower mold (9).

4. The circuit breaker terminal block stamping die according to claim 3, characterized in that: The fourth spring (503) has a guide bar (502) running through its interior. The guide bar (502) is fixedly connected to the interior of the lower mold (9). The connecting bar (501) is slidably connected to the guide bar (502).

5. The stamping die for a circuit breaker terminal block according to claim 1, characterized in that: The installation structure (2) includes an installation frame (201) and a fixing plate (202). An installation frame (201) is fixedly connected to each of the base plate (1) and the lifting plate (8). The upper mold (10) and the lower mold (9) are inserted into the installation frame (201). Two fixing plates (202) are fixedly connected to each of the base plate (1) and the lifting plate (8). Two locking blocks (206) are symmetrically slidably connected to each fixing plate (202). The upper mold (10) and the lower mold (9) each have four locking slots (207). The card block (206) engages with the card slot (207), the fixing plate (202) is slidably connected to the pressing block (203), each pressing block (203) is symmetrically provided with two inclined drive slots (204), the card block (206) is rotatably connected to the drive shaft (208), the drive shaft (208) is slidably connected to the drive slot (204), the pressing block (203) is fixedly connected to the fixing block (209), and the fixing block (209) is fixedly connected to the fixing plate (202) with a first spring (211).

6. The circuit breaker terminal block stamping die according to claim 5, characterized in that: Each of the fixed plates (202) has two T-shaped guide rails (205) fixedly connected inside. The locking block (206) is slidably connected to the guide rails (205). The first spring (211) has a guide shaft (210) passing through its interior. The guide shaft (210) is fixedly connected to the interior of the fixed plate (202). The fixed block (209) is slidably connected to the guide shaft (210).

7. A stamping die for a circuit breaker terminal block according to claim 5, characterized in that: The lower mold (9) is provided with a collection structure (3) inside. The collection structure (3) includes a collection box (301) and a handle (302) fixedly connected to the collection box (301). The collection box (301) is slidably connected inside the lower mold (9). A slide plate (303) with an L-shaped cross section is slidably connected on the lower mold (9). The slide plate (303) abuts against the collection box (301). The side of the collection box (301) away from the slide plate (303) abuts against the side of the pressing block (203). A second spring (305) is fixedly connected between the slide plate (303) and the lower mold (9).

8. A stamping die for a circuit breaker terminal block according to claim 7, characterized in that: A guide rod (304) is fixedly connected to the slide plate (303), and the guide rod (304) is slidably connected to the lower mold (9).

9. A stamping die for a circuit breaker terminal block according to claim 1, characterized in that: The guide post (7) is provided with an adjustment structure (6), the adjustment structure (6) includes an external threaded sleeve (601) and an internal threaded sleeve (602). The external threaded sleeve (601) is fixedly connected to the guide post (7), and the internal threaded sleeve (602) is threadedly connected to the external threaded sleeve (601). A fifth spring (603) is held between the internal threaded sleeve (602) and the lifting plate (8). A rotating block (604) is fixedly connected to the internal threaded sleeve (602).

10. A stamping die for a circuit breaker terminal block according to claim 9, characterized in that: The cross-section of the internal threaded sleeve (602) is T-shaped, and the cross-section of the rotating block (604) is a regular hexagonal structure.

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