A type of core-changing punching machine

Abstract

This utility model discloses a drill bit replacement machine, which solves the problems of inconvenient drill bit replacement and bulky equipment. The drill bit replacement machine mainly includes a mounting base, a detachable and replaceable drill bit unit, a control handle, a flexible reset component, and a drive transmission mechanism. The replaceable drill bit unit is positioned by matching its bottom outer contour with the mounting groove of the base, allowing for tool-free disassembly and replacement, improving maintenance efficiency and functional flexibility. A drive gear meshes with a transmission element with a drive engagement hole, converting the rotational motion of the control handle into vertical drilling force. Combined with the flexible reset component, the control handle automatically resets after drilling. The limiting component reduces the overall height of the machine, overcoming the storage bottleneck of traditional equipment. Its advantages include achieving drill bit replacement in seconds, effortless and smooth operation, compact structure, high space utilization, and suitability for efficient drilling needs in various scenarios such as office documents and handicrafts.

Description

Technical Field

[0001] This utility model relates to the technical field of office punching equipment, specifically to a punching machine with a replaceable core that allows for easy replacement of the core. Background Technology

[0002] With the increasing demand for office automation and personalization, there is a growing need for efficient and flexible punching of sheet materials such as documents, receipts, leather, and handicrafts. While consumers seek convenient punching operations and diverse functions, they also place higher demands on the ease of maintenance, labor-saving operation, and compact overall structure of the equipment.

[0003] Currently, most drilling equipment on the market suffers from the following significant problems: the cutting head cannot be replaced or the replacement operation is complex, resulting in high maintenance costs. Mainstream drilling machines typically use fixed cutting heads or complex replaceable cutting head designs. When the cutting head wears down and needs replacement, or when users need to switch between different hole diameters / shapes, cumbersome disassembly and assembly often requires tools, sometimes even disassembling multiple components or adjusting precision alignment mechanisms. This not only consumes time and effort, leading to a poor user experience, but also results in long downtime and high maintenance costs. Frequent disassembly and assembly can also accelerate the wear of related connecting structures, affecting the overall lifespan and accuracy of the equipment.

[0004] Therefore, this utility model provides a core-changing punching machine, which can effectively solve the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, this utility model provides a drill bit replacement machine with a simple structure and portable drill bit replacement.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] A core-changing punching machine, comprising:

[0008] Mounting base, used to support the sheet material to be drilled;

[0009] A replaceable cutting core unit is detachably mounted on the mounting base, and the replaceable cutting core unit includes a drilling assembly;

[0010] A control handle is rotatably connected to the mounting base, and rotation of the control handle drives the punching assembly of the replaceable core unit to move downward to perform punching on the sheet material supported on the mounting base.

[0011] As an improvement of this utility model, the mounting base is provided with a handle mounting shaft, and the control handle is provided with a handle mounting hole that cooperates with the handle mounting shaft. The mounting base and the control handle are rotatably connected through the handle mounting shaft.

[0012] As an improvement to this utility model, it also includes an elastic reset component, which is sleeved on the handle mounting shaft and is used to drive the control handle to automatically reset to the initial position after drilling is completed.

[0013] As an improvement of this utility model, the elastic reset assembly includes an elastic element and an abutment rod. The abutment rod is fixedly connected to the mounting base, and the elastic element is sleeved on the handle mounting shaft and abuts against the abutment rod.

[0014] As an improvement of this utility model, a limiting component is also included, which is disposed between the mounting base and the control handle, for selectively locking the control handle at the lowest swing stroke position.

[0015] As an improvement of this utility model, the limiting component includes a limiting card and a control card. The limiting card is sleeved on the handle mounting shaft and has a locking abutment. The control card is slidably connected to the mounting base and has a control abutment. When the control handle is locked at the lowest swing stroke position, the control abutment can selectively abut against the locking abutment to overcome the elastic force of the elastic reset component and lock the control handle.

[0016] As an improvement to this utility model, it also includes a drive gear and a transmission element. The drive gear is fixedly sleeved on the handle mounting shaft and has a first tooth. The mounting base has a mounting slide rail. The transmission element is vertically and slidably connected to the mounting slide rail and has a transmission engagement hole that meshes with the first tooth. When the control handle is rotated downward, the drive gear rotates accordingly and drives the transmission element to move downward along the mounting slide rail through the meshing of the first tooth with the transmission engagement hole.

[0017] As an improvement of this utility model, the transmission element is further provided with an execution plate, the execution plate is provided with an execution slot, and the drilling assembly includes a drilling pressure plate and a drilling knife. The execution slot is engaged with the drilling pressure plate, and the drilling pressure plate abuts against the drilling knife. When the transmission element moves downward, it drives the execution plate to move downward, and then drives the drilling knife to move downward through the drilling pressure plate engaged with the execution slot, so as to drill holes in the sheet material supported on the mounting base.

[0018] As an improvement to this utility model, it also includes a base positioning component, which is disposed on the mounting base and is used to adjust the position of the sheet to be punched laterally.

[0019] As an improvement of this utility model, the mounting base is provided with a mounting groove, and the outer contour of the bottom of the replaceable blade unit matches the mounting groove.

[0020] The beneficial effects of this utility model are as follows: Through the above-described structure, the detachable installation design of the replaceable blade unit allows the equipment to flexibly adapt to the drilling needs of various sheet materials (such as paper, leather, and plastic sheets) by replacing different specifications of the replaceable blade unit. This not only reduces equipment purchase costs but also simplifies subsequent maintenance procedures—when the replaceable blade unit is worn or damaged, only the replaceable blade unit needs to be replaced individually, without disassembling the main body of the equipment, effectively improving the equipment's versatility and service life. The rotating connection structure between the control handle and the mounting base conforms to ergonomic principles, driving the drilling component downwards through rotation, reducing operational intensity, and allowing users to precisely adjust the punching force and stroke through the rotation of the control handle, adapting to materials of different thicknesses and materials, avoiding incomplete drilling or material damage, and ensuring the stability of processing quality. The mounting base provides stable support for sheet materials, reducing positional deviations during drilling. The simple component layout makes the device size easy to control, making it suitable for lightweight scenarios such as desktop operation and handcrafting, while balancing processing accuracy and ease of use. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. The drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In addition, the drawings are not drawn to a 1:1 scale, and the relative dimensions of each component are only illustrated in the drawings and are not necessarily drawn to the actual scale.

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Figure 1 This is a schematic diagram of the overall structure of the control handle 300 of the tool-changing punching machine of this utility model at the first angle when it is in the initial position;

[0024] Figure 2 This is a schematic diagram of the overall structure of the control handle 300 of the tool-changing punching machine of this utility model at the second angle when it is in the initial position;

[0025] Figure 3This is an exploded structural diagram of the tool-changing punching machine of this utility model from one angle;

[0026] Figure 4 yes Figure 3 Enlarged view of circle A;

[0027] Figure 5 This is a partial structural diagram of the control handle 300 of the tool-changing punching machine of this utility model when it is in the lowest stroke position;

[0028] Figure 6 This is an exploded structural diagram of the replaceable core unit 200° angle described in the present invention, which is a core-changing drilling machine.

[0029] Figure 7 This is a schematic diagram of the structure of the tool-changing punching machine that assists in installing and binding iron rings on sheet materials that have been punched.

[0030] Figure 8 This is a schematic diagram of the overall structure of the tool-changing punching machine of this utility model when used for pressing iron rings;

[0031] Figure 9 This is a schematic diagram of the overall structure of the tool-changing punching machine used for pressing iron rings.

[0032] Explanation of reference numerals in the attached figures:

[0033] 100. Mounting base; 200. Replaceable blade unit; 300. Control handle; 400. Elastic reset assembly; 500. Limiting assembly; 600. Drive gear; 700. Transmission element; 800. Base positioning assembly; 900. Extended positioning assembly; 110. Handle mounting shaft; 120. Mounting slide rail; 130. Mounting groove; 140. Iron ring mounting part; 150. Iron ring pressing assembly; 151. Pressing fixing plate; 152. Pressing movable plate ; 153, Connecting component; 1531, Pressing engagement hole; 210, Drilling assembly; 211, Drilling pressure plate; 212, Drilling knife; 310, Handle mounting hole; 410, Elastic element; 420, Abutment rod; 510, Limiting card; 511, Locking abutment part; 520, Control card; 521, Control abutment part; 610, First tooth; 620, Second tooth; 710, Transmission engagement hole; 720, Actuation plate; 721, Actuation slot. Detailed Implementation

[0034] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0035] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0036] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0037] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0038] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0039] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0040] Reference Figures 1 to 9 A core-changing punching machine, comprising:

[0041] Mounting base 100 is used to support the sheet material to be drilled;

[0042] A replaceable core unit 200 is detachably mounted on the mounting base 100, and the replaceable core unit 200 includes a drilling assembly 210.

[0043] A control handle 300 is rotatably connected to the mounting base 100, and the rotation of the control handle 300 drives the punching assembly 210 of the replaceable core unit 200 to move downward to perform punching on the sheet material supported on the mounting base 100.

[0044] With the above-described structure, the mounting base 100 serves as the basic load-bearing structure, providing a stable platform for the sheet material to be punched, ensuring the material's position is fixed during punching, and acting as the benchmark for the entire equipment's operation. The replaceable blade unit 200 is detachably connected to the mounting base 100, and its punching component 210 is the core component for performing the punching operation. The detachable design allows the equipment to quickly replace the appropriate replaceable blade unit 200 according to different punching needs, greatly improving the equipment's versatility and flexibility. The control handle 300 is rotatably connected to the mounting base 100. The operator drives the punching component 210 downward by rotating the control handle 300, using mechanical transmission to punch holes in the sheet material. This simplifies the operation process and ensures stable and controllable punching force through the force transmission of the control handle 300. Through the functional division and linkage of each component, the entire system achieves convenient, precise, and flexibly adjustable punching operations on sheet materials.

[0045] In this embodiment, the mounting base 100 is provided with a handle mounting shaft 110, and the control handle 300 is provided with a handle mounting hole 310 that mates with the handle mounting shaft 110. The mounting base 100 and the control handle 300 are rotatably connected via the handle mounting shaft 110. With this structure, during use, the handle mounting shaft 110 of the mounting base 100 and the handle mounting hole 310 of the control handle 300 form a precise fit. From a connection perspective, the shaft-hole fit enables a rotatable connection between the mounting base 100 and the control handle 300, providing a stable rotation fulcrum for the control handle 300, ensuring that it will not loosen or shift during rotation, and guaranteeing the stability of the equipment structure. From a transmission perspective, this connection structure allows the force to be precisely and efficiently transmitted to the punching assembly 210 of the replaceable core unit 200 when the operator rotates the control handle 300. This drives the assembly to move stably downwards to complete the punching action, avoiding poor punching results caused by force loss or transmission deviation. Simultaneously, this shaft-hole fit design is simple and easy to process and assemble, reducing the equipment's manufacturing cost and facilitating subsequent maintenance and repair. This further enhances the equipment's practicality and reliability, aligning with the overall structure's goal of efficient and flexible punching.

[0046] This embodiment also includes an elastic reset component 400, which is sleeved on the handle mounting shaft 110 and used to drive the control handle 300 to automatically reset to its initial position after drilling is completed. Through the above structural design, the design of the elastic reset component 400 sleeved on the handle mounting shaft 110 during use is a significant optimization of the overall structure of the core-changing drilling machine, forming efficient collaboration with existing components. From an operational cycle perspective, after drilling is completed, the elastic reset component 400 can drive the control handle 300 to automatically reset to its initial position using its own elastic force, eliminating the need for manual reset, significantly simplifying the operation process, reducing operational steps in continuous drilling operations, and improving work efficiency. From a structural fit perspective, the mounting method of the handle mounted on the handle mounting shaft 110 makes full use of the existing shaft structure, eliminating the need for additional mounting components. This saves space and ensures the stability of the reset force transmission. Thanks to the precise fit between the handle mounting shaft 110 and the handle mounting hole 310, the reset force can be evenly applied to the control handle 300, preventing jamming or offset during the reset process. This ensures that the control handle 300 accurately returns to its initial position each time, providing a stable starting point for the next drilling operation. Simultaneously, this design further enhances the automation function of the equipment, complementing the flexibility of the replaceable blade unit 200 and the precision of the control handle 300's transmission. This makes the entire drilling operation smoother in the "drive drilling—automatic reset" cycle, enhancing the practicality and ease of operation of the equipment.

[0047] In this embodiment, the elastic reset assembly 400 includes an elastic element 410 and an abutment rod 420. The abutment rod 420 is fixedly connected to the mounting base 100, and the elastic element 410 is sleeved on the handle mounting shaft 110 and abuts against the abutment rod 420. Through the above structural design, the cooperative design of the elastic element 410 and the abutment rod 420 in the elastic reset assembly 400 further refines and strengthens its functional realization during use. The abutment rod 420, fixedly connected to the mounting base 100, provides a stable support point for the elastic element 410. When the elastic element 410 is sleeved on the handle mounting shaft 110 and abuts against the abutment rod 420, this fixed support point ensures that after the elastic element 410 is subjected to force deformation (such as when the control handle 300 rotates and compresses the elastic element 410 during drilling), it can accurately release its own elastic potential energy, stably driving the control handle 300 to reset, avoiding insufficient reset force or directional deviation due to unstable support. Meanwhile, the elastic element 410 is sleeved on the handle mounting shaft 110, which works in conjunction with the fixed support of the abutment rod 420 to make the transmission path of the elastic force clearer—transmitted along the handle mounting shaft 110 to the control handle 300. With the precise fit between the handle mounting shaft 110 and the handle mounting hole 310, energy loss and positional deviation during the reset process are further reduced, ensuring the accuracy and consistency of the reset.

[0048] In this embodiment, a limiting component 500 is also included. The limiting component 500 is disposed between the mounting base 100 and the control handle 300, and is used to selectively lock the control handle 300 at the lowest position of its swing stroke. With the above-described structure, the design of the limiting component 500, positioned between the mounting base 100 and the control handle 300, selectively locking the control handle 300 at the lowest position of its swing stroke during use, is an important supplement to the function of the core-changing drilling machine, forming a deep synergy with the existing structure. From a functional perspective, the selective locking design of this component does not affect the automatic reset cycle of the control handle 300 under the action of the elastic reset component 400 during normal drilling, and can achieve precise locking under special requirements, balancing the equipment's normal operating efficiency and safety in special scenarios. Meanwhile, its installation between the mounting base 100 and the control handle 300 fully utilizes the connection space between the two, forming a compact fit with the handle mounting shaft 110, the elastic reset component 400, and other structures, without occupying excessive additional space. This further enhances the rationality and practicality of the equipment structure, meeting the core requirements of efficiency, safety, and flexibility in the overall design. During packaging and transportation, locking the control handle 300 at its lowest swing stroke position can also significantly reduce the packaging space occupied by the product.

[0049] In this embodiment, the limiting component 500 includes a limiting card 510 and a control card 520. The limiting card 510 is sleeved on the handle mounting shaft 110 and has a locking abutment part 511. The control card 520 is slidably connected to the mounting base 100 and has a control abutment part 521. When the control handle 300 is locked at the lowest swing stroke position, the control abutment part 521 can selectively abut against the locking abutment part 511 to overcome the elastic force of the elastic reset component 400 and lock the control handle 300. Through the above structural design, the cooperation design of the limiting card 510 and the control card 520 in the limiting component 500 makes the locking function more accurate and reliable during use. The limiting card 510 is sleeved on the handle mounting shaft 110 and has a locking abutment part 511, forming a corresponding action point with the control abutment part 521 of the control card 520. When the control handle 300 needs to be locked, the control card 520 is slidable (in this embodiment, a sliding control key slidably connected to the mounting base 100 is engaged with the control card 520 to control its sliding) so that the two abutment parts abut against each other, which can stably overcome the elastic force of the elastic reset component 400 and ensure that the control handle 300 does not rebound in the lowest position. This structure transmits force through a clear abutment relationship, which improves the stability of locking. Moreover, the sliding connection control method is easy to operate and is compatible with the handle mounting shaft 110, the elastic reset component 400, and other structures. It not only ensures the effective realization of the locking function but also does not affect the normal operation of the equipment, further enhancing the reliability of equipment operation.

[0050] In this embodiment, a drive gear 600 and a transmission element 700 are also included. The drive gear 600 is fixedly sleeved on the handle mounting shaft 110 and has a first tooth 610. The mounting base 100 has a mounting slide rail 120. The transmission element 700 is vertically and slidably connected to the mounting slide rail 120 and has a transmission engagement hole 710 that meshes with the first tooth 610. When the control handle 300 is rotated downwards, the drive gear 600 rotates accordingly, and the engagement of the first tooth 610 with the transmission engagement hole 710 drives the transmission element 700 to move downwards along the mounting slide rail 120. Through the above structural design, the design of the drive gear 600 and the transmission element 700 optimizes the transmission of force and motion conversion during use. The drive gear 600 is fixedly sleeved on the handle mounting shaft 110. As the control handle 300 rotates, its first tooth 610 engages with the transmission engagement hole 710 of the transmission element 700, converting the rotational motion of the handle into the vertical downward sliding of the transmission element along the mounting slide rail 120. This meshing transmission is precise and stable, efficiently transmitting power and ensuring uniform force on the drilling assembly 210. The mounting slide rail 120 provides guidance for the transmission element 700, ensuring a stable movement trajectory. This structure, in conjunction with the handle mounting shaft 110 and the elastic reset assembly 400, improves the accuracy and reliability of the drilling action, further perfecting the equipment's transmission system.

[0051] In this embodiment, the transmission element 700 is further provided with an execution plate 720, the execution plate 720 is provided with an execution slot 721, and the drilling assembly 210 includes a drilling pressure plate 211 and a drilling knife 212. The execution slot 721 is engaged with the drilling pressure plate 211, and the drilling pressure plate 211 abuts against the drilling knife 212. When the transmission element 700 moves downward, it drives the execution plate 720 to move downward, and then drives the drilling knife 212 to move downward through the drilling pressure plate 211 engaged with the execution slot 721, so as to drill holes in the sheet material supported on the mounting base 100. With the above-described structure, during use, the actuator plate 720 of the transmission element 700 engages with the punching pressure plate 211 of the punching assembly 210 via the actuator slot 721, and the punching pressure plate 211 abuts against the punching blade 212, thus achieving precise power transmission from the transmission element 700 to the punching blade 212. When the transmission element 700 moves downward along the mounting slide rail 120, the actuator plate 720 drives the punching pressure plate 211 to move downward synchronously via the actuator slot 721, thereby pushing the punching blade 212 to apply force to punch holes in the sheet material. This engagement ensures direct and unbiased force transmission, avoiding power loss. Simultaneously, the punching pressure plate 211 allows for more even force distribution on the punching blade 212, reducing damage to the blade or deformation caused by excessive localized force, thus improving punching quality. This structure, together with the drive gear 600 and the transmission system of the transmission element 700, forms a complete power transmission chain, further enhancing the stability and accuracy of the equipment's drilling action, which aligns with the overall design's goal of efficient and reliable drilling.

[0052] This embodiment also includes a base positioning component 800, which is disposed on the mounting base 100 and used for lateral adjustment of the position of the sheet to be punched. With the above structure, during use, the base positioning component 800, disposed on the mounting base 100, is used to laterally adjust the position of the sheet to be punched, which is an important guarantee for the accuracy of the equipment's punching. It can flexibly adjust the lateral position of the sheet according to the punching requirements, ensuring accurate punching position. This corresponds to the flexible adaptation of the replaceable blade unit 200, expanding the equipment's adaptability to different punching needs. Simultaneously, this component works in conjunction with the transmission element 700 and the punching component 210. After the sheet position is determined, precise power transmission and punching action further ensure the consistency and reliability of punching, enabling the equipment to operate efficiently while better meeting diverse punching position requirements, thus improving overall functionality.

[0053] This embodiment also includes an extended positioning component 900, which is disposed on the replaceable core unit 200 and used to laterally adjust the position of the sheet material to be punched, which already has some holes. With the above structure, in use, the extended positioning component 900 is disposed on the side of the replaceable core unit 200, specifically designed for scenarios where the sheet size is larger than the base size and multiple evenly punched holes along the edge are required, complementing the base positioning component 800. It can laterally adjust the position of the sheet material with existing holes, ensuring even distribution of holes along the edge during multiple punching operations. When the sheet material exceeds the base size range, the extended positioning component 900 can precisely control the sheet material movement, working in conjunction with the replaceable core unit 200 and the punching component 210 to maintain punching accuracy during multiple operations, meeting the requirement of evenly punched holes along the edge, further expanding the equipment's adaptability to large-size sheets, and improving the positioning and adjustment system.

[0054] In this embodiment, the mounting base 100 is provided with a mounting groove 130, and the outer contour of the bottom of the replaceable blade unit 200 matches the mounting groove 130. Through this structural design, the matching of the mounting groove 130 of the mounting base 100 with the bottom outer contour of the replaceable blade unit 200 provides precise installation positioning for the replaceable blade unit 200. This matching structure ensures that the replaceable blade unit 200 is stably fitted into the mounting base 100, preventing lateral displacement or shaking during drilling and ensuring accurate drilling position of the drilling assembly 210. Simultaneously, in conjunction with the extended positioning assembly 900, etc., the stable installation of the replaceable blade unit 200 provides a reliable foundation for sheet positioning and drilling accuracy during multiple drilling operations, and also facilitates quick disassembly and replacement of the replaceable blade unit 200, further improving the stability and ease of operation of the equipment. It should be noted that the bottom of the installation trough 130 is also provided with a waste discharge port, and the bottom of the installation base 100 is provided with a waste collection box directly opposite the waste discharge port. The waste generated by drilling will fall into the waste collection box through the waste discharge port.

[0055] In this embodiment, the mounting base 100 further includes a ring mounting part 140 and a ring pressing assembly 150. The ring mounting part 140 is used to assist in installing the binding ring on the perforated sheet material. The ring pressing assembly 150 includes a pressing fixing plate 151, a pressing movable plate 152, and a connecting member 153. The connecting member 153 is fixedly connected to the pressing movable plate 152 and is provided with a pressing engagement hole 1531. The drive gear 600 is also provided with a second tooth 620. When the control handle 300 is rotated downward, the drive gear 600 rotates accordingly and drives the connecting member 153 through the pressing engagement hole 1531 that meshes with the second tooth 620, thereby driving the pressing movable plate 152 to move toward the pressing fixing plate 151 and pressing the binding ring located between the pressing fixing plate 151 and the pressing movable plate 152. Through the above-described structure, the design of the iron ring mounting part 140 and the iron ring pressing assembly 150 of the mounting base 100 expands the equipment's functionality, realizing integrated operation of binding sheet materials after punching. The iron ring mounting part 140 provides assistance for installing and binding iron rings on the punched sheet material, improving the convenience of binding preparation. In the iron ring pressing assembly 150, the connecting member 153 meshes with the second tooth 620 of the drive gear 600 through the pressing engagement hole 1531. When the control handle 300 rotates, the rotation of the drive gear 600 drives the pressing movable plate 152 to move towards the pressing fixed plate 151, completing the iron ring pressing. This design reuses the power transmission of the drive gear 600, eliminating the need for an additional power source and simplifying the structure. This assembly, in conjunction with the punching-related structures, makes the equipment seamless and efficient from punching to binding, enhancing overall practicality.

[0056] The above description provides one or more embodiments in conjunction with specific content, and does not imply that the specific implementation of this utility model is limited to these descriptions. Any methods or structures that are similar to or identical to those of this utility model, or any technical deductions or substitutions made based on the concept of this utility model, should be considered within the protection scope of this utility model.

Claims

1. A punch press having a tool changer, characterized by, include: Mounting base (100) is used to support the sheet material to be drilled; A replaceable core unit (200) is detachably mounted on the mounting base (100), and the replaceable core unit (200) includes a punching assembly (210). A control handle (300) is rotatably connected to the mounting base (100), and rotation of the control handle (300) drives the punching assembly (210) of the replaceable core unit (200) to move downward to perform punching on the sheet material supported on the mounting base (100).

2. The tool changer punch of claim 1, wherein, The mounting base (100) is provided with a handle mounting shaft (110), and the control handle (300) is provided with a handle mounting hole (310) that cooperates with the handle mounting shaft (110). The mounting base (100) and the control handle (300) are rotatably connected through the handle mounting shaft (110).

3. The tool changer punch of claim 2, wherein, It also includes an elastic reset component (400), which is sleeved on the handle mounting shaft (110) and is used to drive the control handle (300) to automatically reset to the initial position after drilling is completed.

4. The tool changer punch of claim 3, wherein, The elastic reset assembly (400) includes an elastic element (410) and an abutment rod (420). The abutment rod (420) is fixedly connected to the mounting base (100). The elastic element (410) is sleeved on the handle mounting shaft (110) and abuts against the abutment rod (420).

5. The tool changer punch of claim 3 wherein, It also includes a limiting component (500) disposed between the mounting base (100) and the control handle (300) for selectively locking the control handle (300) at the lowest swing stroke position.

6. The tool changer punch of claim 5 wherein, The limiting component (500) includes a limiting card (510) and a control card (520). The limiting card (510) is sleeved on the handle mounting shaft (110) and has a locking abutment (511). The control card (520) is slidably connected to the mounting base (100) and has a control abutment (521). When the control handle (300) is locked at the lowest swing stroke position, the control abutment (521) can selectively abut against the locking abutment (511) to overcome the elastic force of the elastic reset component (400) and lock the control handle (300).

7. The tool changer punch of claim 3 wherein, It also includes a drive gear (600) and a transmission element (700). The drive gear (600) is fixedly sleeved on the handle mounting shaft (110) and has a first tooth (610). The mounting base (100) has a mounting slide rail (120). The transmission element (700) is vertically and slidably connected to the mounting slide rail (120) and has a transmission engagement hole (710) that meshes with the first tooth (610). When the control handle (300) is rotated downward, the drive gear (600) rotates accordingly and drives the transmission element (700) to move downward along the mounting slide rail (120) through the meshing of the first tooth (610) with the transmission engagement hole (710).

8. The tool changer punch of claim 7, wherein, The transmission element (700) is also provided with an execution plate (720), the execution plate (720) is provided with an execution slot (721), the drilling assembly (210) includes a drilling pressure plate (211) and a drilling knife (212), the execution slot (721) is engaged with the drilling pressure plate (211), and the drilling pressure plate (211) abuts against the drilling knife (212); when the transmission element (700) moves downward, it drives the execution plate (720) to move downward, and then drives the drilling knife (212) to move downward through the drilling pressure plate (211) engaged with the execution slot (721), so as to drill holes in the sheet material supported on the mounting base (100).

9. The tool changer punch of claim 1 wherein, It also includes a base positioning component (800), which is disposed on the mounting base (100) and is used to adjust the position of the sheet to be punched laterally.

10. The core-changing drilling machine according to claim 1, characterized in that, The mounting base (100) is provided with a mounting groove (130), and the outer contour of the bottom of the replaceable blade unit (200) matches the mounting groove (130).

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