Multifunctional integrated cutting machine trolley device

Abstract

The invention relates to a multifunctional integrated cutting machine trolley device, and belongs to the technical field of automatic machining equipment. The device aims at solving the problems that an existing tool replacement mechanism is complex in operation, low in efficiency and poor in repeated positioning precision. The core structure comprises a saddle, a driving device (such as a voice coil motor) for driving a cutter to lift, a rotating motor for driving the cutter to rotate, and a modular cutter module. The cutter module adopts a three-section design: a cutter head, a connecting shell and a fixed seat are quickly disassembled and assembled through a D-shaped shaft, a limiting block and a bolt, and replacement can be completed within seconds without tools.

Description

Technical Field

[0001] The present invention relates to the technical field of automated processing equipment, in particular to a multifunctional integrated cutting machine trolley device. Background Art

[0002] With the rise of personalized customization and flexible manufacturing, integrated processing equipment capable of performing multiple functions such as cutting, engraving, drawing, and marking on a single device is becoming increasingly popular in the market. Among these devices, small, mobile cutting machine carts are widely used in advertising production, model making, electronic circuit board (PCB) proofing, education, and home DIY due to their high flexibility, small footprint, and relatively low cost.

[0003] Currently, multi-functional cutting machines on the market often require replacement of different cutting tools to achieve diverse processing functions. For example, cutting vinyl stickers requires a cutting tool head, engraving acrylic sheets requires a V-shaped engraving tool, and drawing circuit diagrams requires a dedicated drawing pen. However, existing tool replacement mechanisms often suffer from the following drawbacks:

[0004] Complicated and inefficient: Tool replacement on most machines requires the use of multiple tools, such as wrenches and screwdrivers, to loosen multiple screws, remove the entire tool, including its clamping base or transmission components, and then install the new tool. This entire process is time-consuming, often taking several minutes or longer. In a production environment requiring frequent process changes, this low tool change efficiency significantly impacts overall processing efficiency, becoming a bottleneck in the production process.

[0005] Repeatable positioning accuracy is difficult to guarantee: Because each tool change may involve disassembly and assembly of the tool holder and even part of the transmission mechanism, key parameters such as tool installation coaxiality, perpendicularity, and the precise height of the tool tip (Z-axis coordinate) can easily accumulate errors. Operators often need to redo the tedious tool setting and calibration work after each tool change, which not only increases the workload but also directly affects the processing quality of the final product if the calibration is inaccurate, resulting in increased scrap rate. Summary of the Invention

[0006] In view of the above situation, it is necessary to provide a multifunctional integrated cutting machine trolley device that solves at least one of the above problems, comprising:

[0007] Car seat (1);

[0008] A driving device (2) disposed on the vehicle seat (1) and used for driving the tool (3) to move up and down;

[0009] a rotary motor (5) disposed on the vehicle seat (1) and used for driving the tool (3) to rotate;

[0010] The tool (3) comprises a detachably connected tool head (31), a connecting shell (32) and a fixing seat (33);

[0011] and a transmission structure (6) arranged between the rotating motor (5) and the tool (3);

[0012] The fixing seat (33) is fixedly connected to the transmission structure (6); the connecting shell (32) is detachably mounted on the fixing seat (33); and the tool head (31) is fixed to the connecting shell (32) to achieve a detachable connection with the fixing seat (33) through the connecting shell (32).

[0013] Preferably, identification surfaces for identifying tool information are provided on the outer side surfaces on two opposite sides of the tool head (31).

[0014] Preferably, the port of the tool head (31) is provided with a first D-shaped shaft (311), and the bottom of the connecting shell (32) is provided with a socket (321) matching the first D-shaped shaft (311); the top of the connecting shell (32) is provided with a limit block (322), and both sides of the fixing seat (33) are provided with notches (331) for accommodating the two ends of the limit block (322).

[0015] Preferably, the fixed seat (33) and the transmission structure (6) are connected via a rotating shaft (332), and the fixed seat (33) and the rotating shaft (332) are fixed via a first latch (71); the tool head (31) and the connecting housing (32) are fixed via a second latch (72).

[0016] Preferably, the driving device (2) includes a slider structure (21), a hollow slider (22), a transmission plate (23) and a fixed plate (24); the driving device (2) further includes a driver (4) arranged at the bottom of the transmission plate (23); the slider (22) is vertically fixed to the transmission plate (23), and the slider structure (21) is connected to the hollow area of ​​the slider (22) through an axis; the fixed plate (24) is fixedly arranged on the side of the slider structure (21), and a mounting hole (241) for mounting the transmission structure (6) is provided in the middle of the fixed plate (24).

[0017] Preferably, the driver (4) is two voice coil motors, and the two voice coil motors are symmetrically arranged on both sides of the driving device (2).

[0018] Preferably, the transmission structure (6) comprises a driving gear (61) arranged on the output shaft of the rotating motor (5) and a driven gear (62) sleeved in the mounting hole (241); the driven gear (62) is connected to the fixing seat (33) via a second D-shaped shaft (621).

[0019] Preferably, the vehicle further comprises a locking structure (8) for limiting the position of the tool head (31) in a non-working state; the locking structure (8) comprises an annular seat (81) fixedly arranged on the vehicle seat (1), a locking block (82) pivotally connected to one side of the annular seat (81), and a locking rod (83) pivotally connected to the other side of the annular seat (81).

[0020] Preferably, a threaded locking portion (831) is provided at one end of the locking rod (83) away from the pivot end, and an adapting groove (821) adapted to the locking rod (83) is provided at one end of the locking block (82).

[0021] Preferably, when the connecting shell (32) is installed on the fixing seat (33), the ends of the limiting blocks (322) are respectively embedded in the notches (331) to achieve circumferential limiting of the connecting shell (32) relative to the fixing seat (33).

[0022] Beneficial effects: Compared with the prior art, the beneficial effects of the present invention are significant:

[0023] High replacement efficiency: Through the "head-shell-base" three-section structure and latch-type quick-change design, the tool replacement process can be completed in seconds without any complex tools. The operation is extremely simple and minimizes the downtime of the equipment caused by tool replacement.

[0024] Positioning Accuracy: Because the tool holder remains permanently connected to the drive system, its positioning accuracy is unaffected during tool changes. Only the tool head is replaced each time, and the precise fit between the D-shaped shaft and the stopper / slot ensures highly consistent positioning and orientation for each installation, eliminating the tedious task of repeated tool calibration.

[0025] Multifunctional integration: The convenience of tool replacement greatly encourages users to switch functions at any time according to processing needs, so that the cutting, engraving, drawing and other functions of the equipment can be fully utilized, realizing the true meaning of one machine for multiple uses and enhancing the value and application range of the equipment.

[0026] Compact and reliable structure, controllable cost: The D-shaped shaft, limit block, latch, etc. used in the present invention are all mature, reliable and low-cost mechanical components. The entire quick-change system has no complicated hydraulic or pneumatic parts, has a compact structure, and is easy to implement on miniaturized equipment, while ensuring a long service life and low maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of a multifunctional integrated cutting machine trolley device of the present invention.

[0028] Figure 2 It is a schematic diagram of the exploded structure of the combination of the driving device and the tool part in the present invention.

[0029] Figure 3 It is a schematic diagram of the decomposed structure of the tool module in the present invention.

[0030] Figure 4 It is a cross-sectional schematic diagram of the connection between the tool head and the connecting shell in the present invention, showing the matching relationship of the first D-shaped shaft.

[0031] Figure 5 It is a top view schematic diagram of the connecting shell when it is installed on the fixing seat in the present invention, showing the matching relationship between the limit block and the notch.

[0032] Figure 6 It is a schematic diagram of the working state of the tool head locking structure in the present invention. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the following is a further detailed description of the multifunctional integrated cutting machine trolley device of the present invention in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0034] In the description of the present invention, unless otherwise specified, "plurality" means two or more; the terms "center", "longitudinal", "lateral", "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0035] In the description of this utility, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility based on specific circumstances.

[0036] The following will be combined with the Figures 1 to 6 It should be noted that the preferred embodiments described in this section are intended to explain the present invention, but do not constitute any form of limitation to the present invention.

[0037] Overall structure

[0038] Reference Figure 1 The present invention provides a multifunctional integrated cutting machine trolley device. The device is mainly constructed on a trolley seat (1). The trolley seat (1) is usually made of a high-strength lightweight alloy material (such as 6061-T6 aluminum alloy) through CNC processing, and the surface is anodized to improve hardness and corrosion resistance.

[0039] On the vehicle seat (1), the core functional module includes a drive device (2) for driving the tool (3) to rise and fall in the vertical direction (Z axis), a rotary motor (5) for driving the tool (3) to rotate, and the core of the present invention - the modular tool (3) itself. In addition, there is a locking structure (8) for protecting and fixing the tool (3).

[0040] Z-axis drive (2) and tool rotation drive:

[0041] Reference Figure 2 , which is a detailed exploded view of the drive unit (2) and the tool (3). The drive unit (2) is the key to achieving precise positioning of the tool. In this embodiment, it is designed as a high-precision Z-axis linear module.

[0042] The module is based on a transmission plate (23). A slide plate (22) serving as a linear guide is fixed vertically to the front side of the transmission plate (23). The slide plate (22) is made of ground-grade stainless steel and has extremely high straightness. The middle area of ​​the slide plate (22) is hollow to reduce weight and facilitate wiring.

[0043] A slider structure (21) slides with a slide plate (22) through its internal balls, forming a high-precision linear motion pair. A fixed plate (24) is firmly installed on the side of the slider structure (21). This fixed plate (24) is the carrier of the entire tool rotation and clamping system.

[0044] The source of the driving force is two drivers (4) arranged on both sides of the bottom of the transmission plate (23). In this preferred embodiment, the two drivers (4) are high-performance voice coil motors. Each voice coil motor includes a fixed magnetic track and a moving coil part. The magnetic track is fixed on the transmission plate (23), and the coil part is rigidly connected to the slider structure (21) (or a bracket connected to the slider structure). When the controller passes current to the coil, the coil is acted upon by the Lorentz force in the magnetic field, generating a precise linear thrust, thereby driving the entire slider structure (21) together with all the components loaded thereon (including the fixed plate (24) and the tool (3)) to perform a smooth, fast, and high-precision lifting and lowering motion along the slide plate (22). The selection of two voice coil motors arranged symmetrically can provide a more stable and balanced thrust, avoid the deflection torque that may be caused by unilateral drive, and further ensure the accuracy of the movement.

[0045] The rotary power of the tool (3) is provided by a rotary motor (5). The rotary motor (5) can be a high-speed brushless DC motor, which is installed at an appropriate position of the vehicle seat (1). A driving gear (61) is fixed on its output shaft. A precise mounting hole (241) is opened in the middle of the fixed plate (24), and a driven gear (62) is supported in the hole by two angular contact ball bearings installed back to back. The driving gear (61) and the driven gear (62) are driven by a synchronous belt or direct meshing. The center hole of the driven gear (62) is processed into the form of a second D-shaped shaft (621) for transmitting the rotary motion to the fixed seat (33) of the tool (3).

[0046] Modular quick-change structure of tool (3):

[0047] Reference Figure 3 、 Figure 4 and Figure 5 The core innovation of the present invention, the modular quick-change structure of the tool (3), is described in detail. The tool (3) is cleverly decomposed into three independent and precisely matched parts: the tool head (31), the connecting shell (32) and the fixing seat (33).

[0048] Fixed seat (33): This is the bridge connecting the transmission system and the tool functional module and is a semi-permanent component. It is made of quenched tool steel to ensure high hardness and wear resistance. The upper end has a D-shaped hole that is completely matched with the second D-shaped shaft (621) of the driven gear (62), thereby achieving gapless torque reception. The fixed seat (33) passes through the center of the driven gear (62) through a rotating shaft (332) and is locked by a first pin (71) that radially passes through the preset hole position on the fixed seat (33) and the rotating shaft (332). In this way, the fixed seat (33) is completely fixed to the driven gear (62) in both the axial and circumferential directions. Two rectangular notches (331) are symmetrically opened on the outer side of the lower part of the fixed seat (33), which is one of the key structures for achieving precise positioning.

[0049] Connecting shell (32): This is an adapter part, usually made of aviation aluminum to achieve lightness. A protruding stopper (322) is integrally formed on the top of the connecting shell. The shape and size of the stopper precisely match the notch (331) on the fixing seat (33). When the connecting shell (32) is put on the fixing seat (33) from below, the stopper (322) will be completely embedded in the notch (331) (e.g. Figure 5 This mating relationship simultaneously serves two crucial functions: first, it precisely defines the installation depth of the connecting housing (32), ensuring high consistency in the Z-axis direction; and second, through the close contact of the side walls, it provides strong anti-torsion capability, preventing the tool from rotating and deflecting when subjected to cutting resistance. The bottom of the connecting housing (32) is machined with a vertical socket (321) with a specific depth. The cross-section of the socket is D-shaped and is used to install the tool head (31).

[0050] Tool head (31): This is a functional module that performs specific processing tasks and can be designed into various types according to needs. For example, a drag cutter head for cutting, a V-shaped or ball-end milling head for engraving, a pen holder head for drawing, etc. All tool heads (31) with different functions have a unified and standardized upper connection structure, that is, a first D-shaped shaft (311) (such as a D-shaped shaft) that matches the socket (321) of the connection housing (32). Figure 4 When the tool head (31) is inserted into the connecting housing (32), the first D-shaped shaft (311) and the D-shaped surface of the socket (321) cooperate with each other, ensuring that the torque transmitted from the connecting housing can be effectively transmitted to the tool head. The tool head (31) and the connecting housing (32) are locked by a second latch (72), which passes through the through hole on the connecting housing wall and the first D-shaped shaft (311).

[0051] A flat identification surface is specially provided on the side of the tool head (31) for knowing the front of the tool head (31).

[0052] Quick change operation process

[0053] The tool replacement process of the present invention is extremely simple and quick:

[0054] Disassembly: The operator pulls out the second latch (72) with his fingers.

[0055] Separation: Pull out the old cutting head (31) downwards.

[0056] Installation: Align the first D-shaped shaft (311) of the new tool head (31) with the socket (321) of the connecting housing (32) and insert it to the bottom.

[0057] Locking: Insert the second latch (72) back to its original position to lock the tool head.

[0058] The entire process can be completed within 5-10 seconds without any tools, and since the positions of the fixing base (33) and the connecting shell (32) remain unchanged, the tip position of the new tool head can be repeatedly positioned with extremely high accuracy.

[0059] In some applications, the connecting housing (32) and the cutting tool head (31) can be pre-assembled into one piece, and when replacing, the connecting housing (32) and the fixing base (33) can be directly separated and connected. This is also very convenient, and only a latch for locking the connecting housing and the fixing base is required.

[0060] Tool head locking structure (8):

[0061] Reference Figure 6 In order to further improve the safety and reliability of the device, the present invention also designs an ingenious locking structure (8). The structure is fixed to a bracket of the vehicle seat (1). It includes a fixed annular seat (81), one side of the annular seat (81) is pivotally connected to a crescent-shaped locking block (82) through a pin, and the other side is pivotally connected to a locking rod (83). The free end of the locking rod (83) is processed with a threaded locking portion (831) (for example, an external thread plus a knurled handwheel), and the free end of the locking block (82) is provided with an adapter groove (821) adapted to the locking rod (83).

[0062] When the tool needs to be locked, the operator moves the drive unit (2) to the lowest position, allowing the lower part of the tool head (31) to enter the center of the annular seat (81). Then, the locking block (82) and the locking rod (83) are brought together to fit the locking rod (83) into the adapter groove (821), and finally, the threaded locking portion (831) is tightened. At this point, the locking block (82) and the locking rod (83) will gently clamp the tool head (31) from both sides, firmly locking it in the annular seat (81), effectively preventing damage to the precision tool and the Z-axis mechanism caused by accidental collision or vibration.

[0063] In summary, the present invention successfully addresses the technical pain point of tool replacement difficulties on integrated trolley devices through an innovative three-section modular tool design consisting of a "functional head-adapter housing-fixing seat," combined with a series of specific technical measures such as D-shaft torque transmission, precise positioning of limit blocks / slots, and latch-type quick locking. At the same time, by introducing a high-performance voice coil motor Z-axis drive and a locking structure, the present invention provides a complete technical solution that is powerful, superior in performance, easy to use, safe, and reliable. This not only greatly improves the processing efficiency and precision of multifunctional equipment, but also greatly expands its application potential in various precise, fast, and flexible processing scenarios.

[0064] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent changes or modifications made by any person skilled in the art based on the above description without departing from the spirit of the present invention are intended to be included within the scope of protection of the present invention. The ultimate scope of protection of the present invention shall be subject to the appended claims.

Claims

1. A multifunctional integrated cutting machine trolley device, characterized in that: include: Car seat (1); A driving device (2) disposed on the vehicle seat (1) and used for driving the tool (3) to move up and down; a rotary motor (5) disposed on the vehicle seat (1) and used for driving the tool (3) to rotate; The tool (3) comprises a detachably connected tool head (31), a connecting shell (32) and a fixing seat (33); and a transmission structure (6) arranged between the rotating motor (5) and the tool (3); The fixing seat (33) is fixedly connected to the transmission structure (6); the connecting shell (32) is detachably mounted on the fixing seat (33); and the tool head (31) is fixed to the connecting shell (32) to achieve a detachable connection with the fixing seat (33) through the connecting shell (32).

2. The device according to claim 1, characterized in that The outer side surfaces on two opposite sides of the tool head (31) are provided with identification surfaces for identifying tool information.

3. The device according to claim 1 or 2, characterized in that The port of the tool head (31) is provided with a first D-shaped shaft (311), and the bottom of the connecting shell (32) is provided with a socket (321) matching the first D-shaped shaft (311); the top of the connecting shell (32) is provided with a limit block (322), and both sides of the fixing seat (33) are provided with notches (331) for accommodating the two ends of the limit block (322).

4. The device according to claim 3, characterized in that The fixing seat (33) and the transmission structure (6) are connected via a rotating shaft (332), and the fixing seat (33) and the rotating shaft (332) are fixed via a first latch (71); the tool head (31) and the connecting housing (32) are fixed via a second latch (72).

5. The device according to claim 1, characterized in that The driving device (2) comprises a slider structure (21), a hollow slide plate (22), a transmission plate (23) and a fixed plate (24); the driving device (2) further comprises a driver (4) arranged at the bottom of the transmission plate (23); the slide plate (22) is vertically fixed to the transmission plate (23), and the slider structure (21) is connected to the hollow area of ​​the slider (22) via an axis; the fixed plate (24) is fixedly arranged on the side of the slider structure (21), and a mounting hole (241) for mounting the transmission structure (6) is provided in the middle of the fixed plate (24).

6. The device according to claim 5, characterized in that The driver (4) is two voice coil motors, and the two voice coil motors are symmetrically arranged on both sides of the driving device (2).

7. The device according to claim 5, characterized in that The transmission structure (6) comprises a driving gear (61) arranged on the output shaft of the rotating motor (5) and a driven gear (62) sleeved in the mounting hole (241); the driven gear (62) is connected to the fixing seat (33) via a second D-shaped shaft (621).

8. The device according to claim 1, characterized in that The invention also includes a locking structure (8) for limiting the position of the tool head (31) in a non-working state; the locking structure (8) includes an annular seat (81) fixedly arranged on the vehicle seat (1), a locking block (82) pivotally connected to one side of the annular seat (81), and a locking rod (83) pivotally connected to the other side of the annular seat (81).

9. The device according to claim 8, characterized in that A threaded locking portion (831) is provided at one end of the locking rod (83) away from the pivot end, and an adapting groove (821) adapted to the locking rod (83) is provided at one end of the locking block (82).

10. The device according to claims 3 and 7, characterized in that When the connecting shell (32) is installed on the fixing seat (33), the ends of the limiting blocks (322) are respectively embedded in the notches (331) to achieve circumferential limiting of the connecting shell (32) relative to the fixing seat (33).

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