Multi-axis numerical control machining equipment

Abstract

The utility model discloses multi-axis numerical control machining equipment which comprises a machine base, a portal frame, a machining mechanism, a tool changing driving piece and a plurality of tool changing mechanisms, the portal frame comprises two stand columns and a transverse column connected between the two stand columns, and the transverse column stretches across the upper portion of the machine base; the machining mechanism is arranged on the transverse column and comprises a plurality of machining spindles. The tool changing driving piece is arranged on the machine base. The multiple tool changing mechanisms are connected to the machine base and distributed below the machining mechanism in the length direction of the transverse column at intervals. The tool changing mechanism comprises at least two transmission gears, an annular piece and a plurality of tool frames, the transmission gears are arranged at intervals in the width direction of the transverse column, and the transmission gears are rotationally arranged on the machine base; each transmission gear is sleeved with the annular piece, and the annular piece is in meshed connection with each transmission gear; the multiple tool frames are distributed at intervals along the whole circle of the annular piece so as to store tools taken by the machining main shaft. Manual intervention is not needed in the production and machining process of the equipment, production cost is reduced, production efficiency is improved, and the equipment is more suitable for large-scale production and machining.

Description

Technical Field

[0001] This utility model relates to the field of CNC machining equipment, and in particular to a multi-axis CNC machining equipment. Background Technology

[0002] Numerical control (NC) machining equipment has a wide range of applications and is known as the "mother of machine tools." Traditional NC machining equipment includes CNC machines, which include machining devices used to process workpieces, such as machining spindles.

[0003] In related technologies, CNC equipment needs to perform machining on workpieces with multiple features. Therefore, CNC equipment needs to be equipped with a tool magazine to store different tools for the machining spindle to use. During the machining process, when the machining requirements change, the machining spindle needs to be changed, so a tool changing device is required.

[0004] However, the related technologies have the following problems: when machining multiple workpieces simultaneously, multiple machining spindles need to be set up. However, the tool changing devices in the related technologies change the tools of multiple machining spindles sequentially, which results in low tool changing efficiency. Utility Model Content

[0005] The main purpose of this invention is to propose a multi-axis CNC machining equipment, which aims to improve tool changing efficiency.

[0006] To achieve the above objectives, this utility model proposes a multi-axis CNC machining equipment, comprising:

[0007] Base;

[0008] The gantry includes two uprights spaced apart from the base, and a horizontal column connecting the two uprights, the horizontal column spanning across the top of the base;

[0009] A machining mechanism is provided on the horizontal column and includes multiple machining spindles, which are spaced apart along the length of the horizontal column.

[0010] A tool changer drive unit is located on the machine base;

[0011] Multiple tool changing mechanisms are connected to the machine base, and each tool changing mechanism is spaced apart below the machining mechanism along the length direction of the cross column. Each tool changing mechanism corresponds to a machining spindle. The tool changing mechanism includes:

[0012] At least two transmission gears are provided, each of which is spaced apart along the width direction of the cross column, and the transmission gears are rotatably mounted on the base;

[0013] An annular component is sleeved on each of the aforementioned transmission gears and meshes with each of the aforementioned transmission gears;

[0014] Multiple tool holders are distributed at intervals along the entire circumference of the annular member, and the tool holders are used to store tools for use by the machining spindle;

[0015] The tool changer drive unit is used to drive the transmission gears of each tool changer mechanism to move synchronously, so that the annular component of each tool changer mechanism drives the tool holder to move synchronously in the direction toward or away from the machining spindle.

[0016] In some embodiments, the at least two transmission gears include a first driven gear and a second driven gear, and the multi-axis CNC machining equipment further includes:

[0017] A transmission rod is provided, which passes through and connects to each of the first driven gears and is also connected to the output end of the tool changer drive unit, so as to be driven by the tool changer drive unit to rotate, so that each of the first driven gears rotates synchronously.

[0018] A fixed rod is rotatably mounted on the machine base, and the fixed rod passes through and connects to each of the second driven gears.

[0019] In some embodiments, the tool changing mechanism further includes:

[0020] At least two first bearing seats are connected to the machine base, and the transmission rod is rotatably passed through the first bearing seats; each of the first bearing seats is spaced apart along the length direction of the cross column;

[0021] At least two second bearing seats are connected to the machine base and are spaced apart from the first bearing seats along the length direction of the cross column. They are rotatably inserted through the second bearing seats, and each second bearing seat is spaced apart along the length direction of the cross column.

[0022] At least one of the tool changing mechanisms is provided between any two adjacent first bearing seats or any two adjacent second bearing seats.

[0023] In some embodiments, the multi-axis CNC machining equipment further includes:

[0024] The third bearing housing, connected to the machine base, is disposed between the first bearing housing and the second bearing housing;

[0025] An idler wheel is rotatably mounted on the third bearing housing and is engaged with the annular member.

[0026] In some embodiments, the tool holder includes a base and two jaws. The base is disposed on the annular member, and the two jaws are spaced apart on both sides of the base in the horizontal direction to hold the tool for use by the machining spindle.

[0027] In some embodiments, the ring-shaped component is a chain; or, the ring-shaped component is a belt.

[0028] In some embodiments, the multi-axis CNC machining equipment further includes:

[0029] The mounting bracket is connected between the two uprights and located below the horizontal column;

[0030] The mounting plate is slidably connected to the mounting bracket for mounting the tool changing mechanism and the tool changing drive component;

[0031] A first transfer drive is disposed on the mounting bracket. The output end of the first transfer drive is connected to the mounting plate to drive the mounting plate to move along the width direction of the horizontal column, so as to drive the tool changing mechanism and the tool changing drive to approach or move away from the machining spindle in the horizontal direction.

[0032] In some embodiments, the processing mechanism further includes:

[0033] The main shaft mounting component is slidably connected to the cross column;

[0034] A second transfer drive is provided on the cross column, and the output end of the second transfer drive is connected to the spindle mounting component to drive the spindle mounting component to move along the length direction of the cross column;

[0035] Multiple third transfer drive units are spaced apart on the spindle mounting component along the length direction of the cross column. Each of the third transfer drive units has a machining spindle mounted at its output end to drive the machining spindle to move in the vertical direction.

[0036] In some embodiments, the multi-axis CNC machining equipment further includes a workpiece mounting mechanism, which is spaced apart from the tool changing mechanism and located below the machining spindle. The workpiece mounting mechanism includes:

[0037] The fourth transfer drive component is disposed on the base;

[0038] The clamp mounting component is slidably connected to the machine base;

[0039] Multiple clamps are spaced apart on the clamp mounting member along the length of the cross column to clamp the workpiece;

[0040] The fourth transfer drive is used to drive the fixture mounting member to move horizontally along the width direction of the cross column, so as to drive the plurality of fixtures to approach or move away from the machining spindle in the horizontal direction.

[0041] In some embodiments, the clamp mounting member includes a flat plate portion and two vertical plates protruding from the flat plate portion, the two vertical plates being spaced apart on both sides of the flat plate portion along the width direction of the crossbar, and the workpiece mounting mechanism further includes:

[0042] A swing arm is disposed between the two upright plates, with both ends of the swing arm rotatably connected to the two upright plates respectively, and the plurality of clamps are disposed on the swing arm;

[0043] A swing drive is provided on one of the two upright plates. The output end of the swing drive is connected to the swing arm, which drives the swing arm to swing relative to the machining spindle.

[0044] This application utilizes a tool changer drive unit to provide the power to drive the transmission gears. The transmission gears of each tool changer mechanism are meshed with an annular component. The tool changer drive unit drives the transmission gears to rotate, causing the annular component to move along with the rotation of the transmission gears. The movement of the annular component further drives the tool holder on it to move towards or away from the corresponding machining spindle, so that the tool holder that needs to be picked up by the first driven gear aligns with the corresponding machining spindle, or moves the tool holder currently aligned with the machining spindle away from the corresponding machining spindle, so that another tool holder aligns with the corresponding machining spindle. Multiple tool changers are arranged along the length of the crossbar, achieving synchronous tool change operations corresponding to each spindle. Through the above arrangement, the annular components of all tool changers can move synchronously, allowing multiple machining spindles to change tools simultaneously, resulting in high tool change efficiency. Attached Figure Description

[0045] Figure 1 This is a schematic diagram of the structure of a multi-axis CNC machining equipment according to one embodiment of the present invention;

[0046] Figure 2 for Figure 1 A schematic diagram of the structure of a multi-axis CNC machining equipment in one embodiment of the present invention from another perspective;

[0047] Figure 3 This is a partial structural schematic diagram of a multi-axis CNC machining equipment in one embodiment of the present invention.

[0048] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0049] The solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0050] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0051] It should also be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intervening component present. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or there may be an intervening component present.

[0052] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0053] Please refer to Figures 1 to 3 This utility model proposes a multi-axis CNC machining equipment, comprising:

[0054] Base 1;

[0055] The gantry 2 includes two uprights 21 spaced apart from the base 1, and a horizontal column 22 connecting the two uprights 21, with the horizontal column 22 spanning across the top of the base 1;

[0056] The machining mechanism 3 is set on the horizontal column 22 and includes multiple machining spindles 31, which are spaced apart along the length of the horizontal column 22.

[0057] Tool changer drive unit 4 is located on machine base 1;

[0058] Multiple tool changing mechanisms 5 are connected to the machine base 1. Each tool changing mechanism 5 is spaced apart below the machining mechanism 3 along the length of the transverse column 22, and each tool changing mechanism 5 corresponds to a machining spindle 31. The tool changing mechanism 5 includes:

[0059] At least two transmission gears 51 are provided, each transmission gear 51 is spaced apart along the width direction of the cross column 22, and the transmission gears 51 are rotatably mounted on the base 1;

[0060] The annular component 52 is sleeved on each transmission gear 51 and meshes with each transmission gear 51.

[0061] Multiple tool holders 53 are distributed at intervals along the entire circumference of the annular member 52. The tool holders 53 are used to store tools for the machining spindle 31 to access.

[0062] Among them, the tool changer drive 4 is used to drive the transmission gear 51 of each tool changer 5 to move synchronously, so that the ring 52 of each tool changer 5 drives the tool holder 53 to move synchronously toward or away from the machining spindle 31.

[0063] In this embodiment, the base 1 serves as the supporting foundation of the equipment, and the gantry 2 is installed on the base 1. The design of the two columns 21 and the cross column 22 provides lateral and vertical support for the processing mechanism 3.

[0064] The machining mechanism 3 includes multiple machining spindles 31, which are distributed along the length of the horizontal column 22. Each machining spindle 31 can be responsible for machining the same workpiece with different machining features or machining precision, or each of the multiple machining spindles 31 can simultaneously machine a workpiece with the same feature.

[0065] The tool changer drive 4 provides the power to drive the transmission gears 51 to rotate. Each transmission gear 51 is connected to the ring member 52 through meshing. The tool changer drive 4 drives the transmission gears 51 to rotate, thereby causing the ring member 52 to move with the rotation of the transmission gears 51. The movement of the ring member 52 further drives the tool holder 53 on it to move toward or away from the corresponding machining spindle 31, so that the tool holder 53 that needs to pick up the tool is aligned with the corresponding machining spindle 31, or moves the tool holder 53 currently aligned with the machining spindle 31 away from the corresponding machining spindle 31, so that another tool holder 53 is aligned with the corresponding machining spindle 31.

[0066] Multiple tool changing mechanisms 5 are arranged along the length of the horizontal column 22 to achieve synchronous tool changing operations corresponding to each spindle. Through the centralized drive of the tool changing drive unit 4, the transmission gears 51 of all tool changing mechanisms 5 move synchronously, ensuring that the ring parts 52 and tool holders 53 of each tool changing mechanism 5 move at the same time, thereby achieving high efficiency and consistency in the tool changing process.

[0067] Specifically, during the machining stage, multiple machining spindles 31 perform machining operations on the workpiece according to the programming path and process requirements. Each spindle can work simultaneously to improve machining efficiency.

[0068] When the machining spindle 31 needs to change tools, the tool changer drive 4 is activated, driving the transmission gear 51 in the tool changer mechanism 5 to rotate. The transmission gear 51 drives the ring member 52 to move, and any tool holder 53 moves to the position corresponding to the machining spindle 31 under the drive of the ring member 52. That is, the tool stored in the tool holder 53 is moved below the machining spindle 31 for the machining spindle 31 to use. It can be understood that the machining spindle 31 can first release the old tool to the empty tool holder 53, and then the tool changer drive 4 drives the ring member 52 to move the tool holder 53 carrying the old tool away from the machining spindle 31. At the same time, the tool holder 53 with the new tool moves to align with the machining spindle 31 for the machining spindle 31 to use, thus completing the tool change operation.

[0069] This application achieves the following effects by using a multi-axis CNC machining equipment with the above-described structure:

[0070] Firstly, the design of the multi-spindle machining center 31 allows for simultaneous machining of multiple areas of the workpiece, significantly reducing machining time. Simultaneously, multiple tool change mechanisms 5 can support tool changes for each spindle at the same time, reducing waiting time and improving overall machining efficiency.

[0071] Secondly, the design of the synchronous tool changing mechanism 5 reduces non-machining time and avoids affecting machining accuracy due to tool changing errors by precisely controlling the tool changing process.

[0072] Third, the automated tool change function reduces the need for manual operation and improves the automation level of the production line. The tool holder 53 stores a variety of tools to meet the needs of long-term, continuous machining, and the machining operation can be completed in a single clamping, resulting in high machining efficiency.

[0073] In some embodiments, the tool changer drive 4 can be configured as one, with one tool changer drive 4 simultaneously driving and connecting all transmission gears 51 of all tool changer mechanisms 5; or simultaneously driving and connecting any one of all transmission gears 51 in all tool changer mechanisms 5, with the remaining transmission gears 51 rotatably connected to the machine base 1; or multiple tool changer drive 4 can be configured, with each tool changer drive 4 connected to at least one of all transmission gears 51 of a tool changer mechanism 5. The above examples are only illustrative and not restrictive. The specific configuration can be selected according to the design requirements and is not limited to the above examples.

[0074] Reference Figures 1 to 3 In some embodiments, the at least two transmission gears 51 proposed in this utility model embodiment include a first driven gear 511 and a second driven gear 512, and the multi-axis CNC machining equipment further includes:

[0075] The transmission rod 6 is connected to each of the first driven gears 511 and is also connected to the output end of the tool changer 4. It is driven by the tool changer 4 to rotate so that each of the first driven gears 511 rotates synchronously.

[0076] Fixed rod 7, fixed rod 7, the fixed rod 7 is rotatably mounted on the base 1, and the fixed rod 7 is connected to each of the second driven gears 512.

[0077] In this embodiment, each first driven gear 511 is coaxially arranged and connected to the transmission rod 6. The connection method can be that the transmission rod 6 passes through the central hole of the gear. The tool changing drive 4 transmits power to the ring member 52 through the transmission rod 6. This causes the first driven gears 511 of each tool changing mechanism 5 to rotate synchronously, thereby driving the ring member 52 of each tool changing mechanism 5 to move synchronously.

[0078] Each second driven gear 512 is coaxially arranged and connected to the fixed rod 7. The connection method can be that the fixed rod 7 passes through the central hole of the gear and is rotatably connected to the base 1, or it can be connected to the bearing seat, providing support and a rotational basis for each second driven gear 512. Each second driven gear 512 meshes with the corresponding ring member 52 to assist in the smooth operation of the ring member 52.

[0079] By setting the above structure, this application can achieve the following beneficial effects:

[0080] The tool changer drive unit 4 drives the first driven gear 511 of all tool changer mechanisms 5 to rotate synchronously via the transmission rod 6, thereby driving each ring component 52 to move synchronously, achieving synchronous movement of the tool holder 53 on each ring component 52. Since the transmission rod 6 passes through the first driven gear 511, the coaxial design ensures smooth and efficient power transmission. Synchronization avoids non-machining waiting time caused by time differences between the spindles during tool change, further improving tool change efficiency and production rhythm. The second driven gear 512, supported by the fixed rod 7, plays a positioning and auxiliary role when the ring component 52 rotates, ensuring that the ring component 52 always runs smoothly along a predetermined trajectory.

[0081] In summary, this embodiment successfully achieves efficient, synchronous, and stable tool changing functionality through the structural cooperation of the first driven gear 511, the second driven gear 512, the transmission rod 6, and the fixed rod 7.

[0082] Reference Figures 1 to 3 In some embodiments, the tool changing mechanism 5 proposed in this utility model embodiment further includes:

[0083] At least two first bearing seats 54 are connected to the machine base, and the transmission rod 6 is rotatably passed through the first bearing seats 54; each first bearing seat 54 is spaced apart along the length of the cross column 22.

[0084] At least two second bearing seats 55 are connected to the machine base and are spaced apart from the first bearing seats 54 along the length direction of the cross column 22. They are rotatably inserted through the second bearing seats 55. Each second bearing seat 55 is spaced apart along the length direction of the cross column 22.

[0085] At least one tool changing mechanism 5 is provided between any two adjacent first bearing seats 54 or any two adjacent second bearing seats 55.

[0086] In this embodiment, the first bearing seat 54 is used to connect the transmission rod 6, ensuring that the transmission rod 6 can obtain stable support during the driving process and avoiding deformation or twisting caused by the excessive length of the transmission rod 6. The second bearing seat 55 is used to connect the fixed rod 7, providing support force to prevent the fixed rod 7 from bending deformation due to excessive length.

[0087] By spaced multiple bearing seats along the length of the transverse column 22, the load on the transmission rod 6 and the fixed rod 7 is evenly distributed, reducing the pressure of single-point bearing and avoiding local stress concentration. Multi-point support reduces deformation of the rod caused by processing vibration or transmission power, improving the stability and rigidity of the overall structure.

[0088] The tool changing mechanism 5 is positioned between two adjacent first bearing seats 54 or two second bearing seats 55, which reasonably separates the tool changing mechanism 5 from the bearing seats, avoiding interference while ensuring the operating space and stability of each tool changing mechanism 5. The spacing design of the bearing seats facilitates the uniform arrangement of the tool changing mechanism 5 along the length of the cross column 22, so that the machining spindle 31 and the tool changing mechanism 5 can correspond one-to-one, realizing synchronous tool changing operation.

[0089] Reference Figures 1 to 3 In some embodiments, the multi-axis CNC machining equipment proposed in this utility model embodiment further includes:

[0090] The third bearing housing 8 is connected to the base 1 and is disposed between the first bearing housing 54 and the second bearing housing 55;

[0091] The idler wheel 9 is rotatably mounted on the third bearing housing 8 and is engaged with the annular member 52.

[0092] In this embodiment, the idler wheel 9 engages with the annular component 52, providing additional support and / or guidance for its movement through its rotatable characteristic. This disperses the load borne by the annular component 52 during operation, reducing deformation or vibration during long-distance transmission. The engagement between the idler wheel 9 and the annular component 52 stabilizes its operation, preventing offset or trajectory deviation caused by uneven force distribution or mechanical loosening. It also provides additional guidance for the direction of movement of the annular component 52, ensuring smooth movement along a fixed trajectory. For layouts with large spans and multiple tool changers 5, the annular component 52 may experience offset or sagging due to tension concentration during transmission. The idler wheel 9 effectively disperses this tension, maintaining appropriate tension in the annular component 52 and improving system operating efficiency.

[0093] In this embodiment, the idler wheel 9 is mainly used to provide support, guidance and tension distribution for the ring part 52. By reducing vibration, reducing stress and improving stability, the transmission performance and stability of the multi-axis CNC machining equipment are optimized.

[0094] Reference Figures 1 to 3 In some embodiments, the tool holder 53 proposed in this utility model embodiment includes a base 531 and two grippers 532. The base 531 is disposed on the annular part 52, and the two grippers 532 are spaced apart on both sides of the base 531 along the horizontal direction to hold the tool for the machining spindle 31 to take.

[0095] In this embodiment, the base 531 serves as the mounting base for the grippers 532, and is mounted on the annular member 52, moving with the movement of the annular member 52. Two grippers 532 are spaced apart on both sides of the base 531, forming a clamping structure. They clamp the tool using mechanical or elastic force, ensuring that the tool does not loosen during movement or vibration transmission. The two grippers 532 can open and close. When the machining spindle 31 needs to pick up the tool, the grippers 532 release the tool to cooperate with the spindle's gripping action; when the tool is replaced back into the tool holder 53, the grippers 532 re-clamp the tool, completing the fixation. This opening and closing effect can be achieved through an elastic connection, or by a cylinder or drive element driving the two grippers 532 to open and close. This is merely an example and not a limitation.

[0096] Reference Figures 1 to 3 In some embodiments, the annular component 52 proposed in this utility model embodiment is a chain; in some embodiments, the annular component 52 is a belt.

[0097] In this embodiment, when the ring component 52 is a chain, the chain possesses high rigidity and strength, capable of withstanding significant tension and load, making it suitable for heavy-duty machining tasks or high-intensity scenarios requiring frequent tool changes. The chain meshes precisely with the transmission gear 51, minimizing slippage during movement and enabling high-precision tool positioning. Due to the chain's wear-resistant structure, it is suitable for long-term operation, resulting in relatively low maintenance costs. This makes it suitable for scenarios requiring high strength, durability, and precision, such as multi-axis CNC machining equipment operating in complex processes.

[0098] When the annular component 52 is a belt (conveyor belt), the belt is lightweight and flexible, resulting in smoother and quieter operation with lower noise. Compared to chains, belts are lighter, reducing the transmission inertia of the equipment and improving the response speed of tool changes. Belts are suitable for medium to light load transmission requirements, with low operating resistance and high efficiency. They are ideal for small to medium-sized equipment or scenarios with high requirements for noise and operational stability, such as multi-axis CNC equipment operating in precision machining processes, or when the tool holder 53 is not heavy.

[0099] Reference Figures 1 to 3 In some embodiments, the multi-axis CNC machining equipment proposed in this utility model embodiment further includes:

[0100] Mounting bracket 10 is connected between two uprights 21 and located below the horizontal column 22;

[0101] Mounting plate 11 is slidably connected to mounting bracket 10 and is used to mount tool changing mechanism 5 and tool changing drive component 4;

[0102] The first transfer drive 12 is mounted on the mounting bracket 10. The output end of the first transfer drive 12 is connected to the mounting plate 11 to drive the mounting plate 11 to move along the width direction of the horizontal column 22, so as to drive the tool changing mechanism 5 and the tool changing drive 4 to approach or move away from the machining spindle 31 in the horizontal direction.

[0103] In this embodiment, the mounting bracket 10 is connected between the two columns 21, providing support and a mounting base for the mounting plate 11. In some embodiments, the aforementioned first bearing seat 54, second bearing seat 55, and third bearing seat 8 can all be disposed on the mounting plate 11.

[0104] Mounting plate 11 is slidably connected to mounting frame 10 and can move relative to mounting frame 10 to support tool changing mechanism 5 and tool changing drive 4. The position of mounting plate 11 relative to mounting frame 10 (machine base 1, gantry 2) can be changed by the drive, thereby adjusting the relative position of tool changing mechanism 5 and machining spindle 31. First transfer drive 12 is disposed on mounting frame 10, with its output end connected to mounting plate 11, and is used to drive mounting plate 11 to move along the width direction of cross column 22. First transfer drive 12 can be an electric motor, cylinder or other linear drive device, and the movement of mounting plate 11 is realized through motion transmission system (such as lead screw or slide rail).

[0105] Before machining begins, the position of the mounting plate 11 is set according to requirements, ensuring the tool changer 5 and tool changer drive 4 are in a suitable initial state. When the tool changer 5 needs to be moved closer to or further away from the machining spindle 31, the first transfer drive 12 is activated, applying driving force to the mounting plate 11. The mounting plate 11 slides along the slide rail of the mounting bracket 10, achieving lateral movement. This process can be precisely controlled according to the machining program to ensure accurate docking of the tool changer 5 with the tool. After moving to the appropriate position, the tool changer drive 4 is activated, performing tool gripping or release.

[0106] The movement of the mounting plate 11 allows the tool changer 5 to flexibly approach or move away from the machining spindle 31, adapting to the tool changing requirements of different tools. The design of the mounting bracket 10 and the mounting plate 11 can accommodate various models and specifications of tool changers 5 and tools, giving the equipment stronger change and adaptability, suitable for different machining tasks. The efficient drive of the first transfer drive 12 allows for quick and accurate adjustment of the tool change position, shortening the non-machining time caused by tool changing and improving overall production efficiency.

[0107] In summary, this embodiment, by introducing the mounting bracket 10, mounting plate 11, and first transfer drive component 12, forms a highly efficient and flexible tool changing system architecture. The collaborative work of these components allows the tool changing mechanism 5 to flexibly adjust its position as needed, improving tool changing efficiency and accuracy, thereby reducing downtime during tool changing and enhancing the overall operating efficiency of the production line.

[0108] Reference Figure 1 and Figure 2 In some embodiments, the processing mechanism 3 proposed in this utility model embodiment further includes:

[0109] Spindle mounting component 32, sliding connecting column 22;

[0110] The second transfer drive 33 is provided on the cross column 22. The output end of the second transfer drive 33 is connected to the spindle mounting component and is used to drive the spindle mounting component 32 to move along the length direction of the cross column 22.

[0111] Multiple third transfer drive units 34 are spaced apart on the spindle mounting unit 32 along the length of the cross column 22. Each third transfer drive unit 34 has a machining spindle 31 mounted at its output end to drive the machining spindle 31 to move in the vertical direction.

[0112] In this embodiment, the spindle mounting component 32 is slidably connected to the cross column 22, providing a movable support structure for mounting the machining spindle 31.

[0113] The second transfer drive unit 33 is mounted on the cross column 22, and its output end is connected to the spindle mounting unit 32. The function of the drive unit is to generate power to drive the spindle mounting unit 32 to move along the length of the cross column 22, so as to realize the processing of different areas of the workpiece by the machining spindle 31.

[0114] Multiple third transfer drive units 34 are arranged at intervals along the length of the horizontal column 22. The output end of each third transfer drive unit 34 is connected to a machining spindle 31. Each third transfer drive unit 34 independently drives its connected machining spindle 31, enabling the machining spindle 31 to move in the vertical direction and providing flexible adjustment capability for different workpiece heights or different processing requirements.

[0115] When processing is required, the second transfer drive 33 is activated, driving the spindle mount 32 to move along the cross column 22, thereby moving the machining spindle 31 on it to different positions, thus covering different processing areas of the workpiece.

[0116] When the machining spindle 31 needs to be moved vertically (relative to the horizontal direction of the machine base 1), the third transfer drive 34 drives the machining spindle 31 to move upward or downward to adapt to the height of the workpiece or to install / unload the tool. The process can be controlled by a program to achieve automated operation, resulting in efficient tool changing and machining.

[0117] Due to the design of multiple third transfer drive components 34, multiple machining spindles 31 can be driven to move in the vertical direction simultaneously, achieving synchronous machining of multiple spindles. This allows multiple parts to be processed simultaneously during the machining process, improving production efficiency.

[0118] In summary, this embodiment, through the introduction of the spindle mounting component 32, the second transfer drive component 33, and multiple third transfer drive components 34, forms a highly efficient multi-dimensional machining system. This system not only improves machining flexibility and production efficiency but also achieves high-precision control and automated operation.

[0119] Reference Figure 1 and Figure 2In some embodiments, the multi-axis CNC machining equipment proposed in this utility model embodiment further includes a workpiece mounting mechanism 13. The workpiece mounting mechanism 13 is spaced apart from the tool changing mechanism 5 and is located below the machining spindle 31. The workpiece mounting mechanism 13 includes:

[0120] The fourth transfer drive component 131 is mounted on the base 1;

[0121] Fixture mounting component 132, sliding connection base 1;

[0122] Multiple clamps 133 are spaced apart on the clamp mounting part 132 along the length of the horizontal column 22 to clamp the workpiece;

[0123] The fourth transfer drive 131 is used to drive the fixture mounting 132 to move horizontally along the width direction of the cross column 22, so as to drive multiple fixtures 133 to approach or move away from the machining spindle 31 in the horizontal direction.

[0124] In this embodiment, the fourth transfer drive 131 is disposed on the machine base 1 and is responsible for providing power to drive the fixture mounting member 132 to move horizontally along the width direction of the cross column 22. The fourth transfer drive 131 can be an electric motor, a pneumatic cylinder, or other linear drive device, and the movement of the fixture mounting member 132 is realized through a motion transmission system (such as a slide rail or lead screw). The fixture mounting member 132 is slidably connected to the machine base 1, providing support for the fixture 133, and can move horizontally under the action of the drive. Multiple fixtures 133 are evenly distributed on the fixture mounting member 132 for clamping workpieces. The fixtures 133 can move along with the fixture mounting member 132 when it moves horizontally, thereby achieving precise docking between the fixtures 133 and the machining spindle 31. In some embodiments, each fixture 133 may be equipped with a clamping device (such as a pneumatic clamp, mechanical clamp, etc.) for fixing the workpiece, which can be clamped manually or driven by electrical components, and is not limited here. When a workpiece needs to be processed, the fourth transfer drive 131 is activated, driving the fixture mounting member 132 to move along the width direction of the horizontal column 22. During the movement, multiple fixtures 133 move to their respective working positions corresponding to their respective machining spindles 31. The machining spindle 31 begins processing the workpiece by setting the machining program. After processing is completed, the fixtures 133 are released, releasing the workpiece. Subsequently, the fourth transfer drive 131 is activated to move the fixtures 133 to the loading / unloading position for workpiece replacement, preparing for the next processing. The fourth transfer drive 131 can also cooperate with the machining spindle 31 to achieve dynamic compensation, that is, to control the movement of the workpiece relative to the machining spindle 31 during processing, which is only illustrated here.

[0125] Reference Figure 1In some embodiments, the clamp mounting member 132 proposed in this utility model embodiment includes a flat plate portion 1321 and two vertical plate portions 1322 protruding from the flat plate portion 1321. The two vertical plate portions 1322 are spaced apart on both sides of the flat plate portion 1321 along the width direction of the horizontal column 22. The workpiece mounting mechanism 13 further includes:

[0126] A swing arm 134 is located between two upright plates 1322. The two ends of the swing arm 134 are rotatably connected to the two upright plates 1322 respectively. Multiple clamps 133 are located on the swing arm 134.

[0127] A swing drive 135 is provided on one of the two upright plates 1322. The output end of the swing drive 135 is connected to a swing arm 134 to drive the swing arm 134 to swing multiple clamps 133 relative to the machining spindle 31.

[0128] In this embodiment, the fixture mounting member 132 consists of a flat plate portion 1321 and two protruding vertical plate portions 1322. The vertical plate portions 1322 are spaced apart on both sides of the flat plate portion 1321 along the width direction of the horizontal column 22. A swing arm 134 is disposed between the two vertical plate portions 1322, with its two ends rotatably connected to the two vertical plate portions 1322. The design of the swing arm 134 allows multiple fixtures 133 to adjust their clamping angle relative to the machining spindle 31 as the swing arm 134 swings, increasing the machining angle of the workpiece. A swing drive member 135 is disposed on one of the two vertical plate portions 1322, and its output end is connected to the swing arm 134. It is used to drive the swing arm 134 to swing relative to the machining spindle 31 at a certain angle, in accordance with the characteristic that the machining spindle 31 is tilted at a certain angle relative to the workpiece axially or radially, thereby enhancing the machining applicability of this equipment.

[0129] The above description is only a part or preferred embodiment of this utility model. Neither the text nor the drawings should limit the scope of protection of this utility model. All equivalent structural transformations made using the content of this utility model specification and drawings under the overall concept of this utility model, or direct / indirect applications in other related technical fields, are included within the scope of protection of this utility model.

Claims

1. A multi-axis CNC machining equipment, characterized in that, include: Base; The gantry includes two uprights spaced apart from the base, and a horizontal column connecting the two uprights, the horizontal column spanning across the top of the base; A machining mechanism is provided on the horizontal column and includes multiple machining spindles, which are spaced apart along the length of the horizontal column. A tool changer drive unit is located on the machine base; Multiple tool changing mechanisms are connected to the machine base, and each tool changing mechanism is spaced apart below the machining mechanism along the length direction of the cross column. Each tool changing mechanism corresponds to a machining spindle. The tool changing mechanism includes: At least two transmission gears are provided, each of which is spaced apart along the width direction of the cross column, and the transmission gears are rotatably mounted on the base; An annular component is sleeved on each of the aforementioned transmission gears and meshes with each of the aforementioned transmission gears; Multiple tool holders are distributed at intervals along the entire circumference of the annular member, and the tool holders are used to store tools for use by the machining spindle; The tool changer drive is used to drive the transmission gears of each tool changer to move synchronously, so that the annular component of each tool changer drives the tool holder to move synchronously toward or away from the machining spindle.

2. The multi-axis CNC machining equipment according to claim 1, characterized in that, The at least two transmission gears include a first driven gear and a second driven gear, and the multi-axis CNC machining equipment further includes: A transmission rod is provided, which passes through and connects to each of the first driven gears and is also connected to the output end of the tool changer drive unit, so as to be driven by the tool changer drive unit to rotate, so that each of the first driven gears rotates synchronously. A fixed rod is rotatably mounted on the machine base, and the fixed rod passes through and connects to each of the second driven gears.

3. The multi-axis CNC machining equipment according to claim 2, characterized in that, The tool changing mechanism also includes: At least two first bearing seats are connected to the machine base, and the transmission rod is rotatably passed through the first bearing seats; each of the first bearing seats is spaced apart along the length direction of the cross column; At least two second bearing seats are connected to the machine base and are spaced apart from the first bearing seats along the length direction of the cross column. They are rotatably inserted through the second bearing seats, and each second bearing seat is spaced apart along the length direction of the cross column. At least one of the tool changing mechanisms is provided between any two adjacent first bearing seats or any two adjacent second bearing seats.

4. The multi-axis CNC machining equipment according to claim 3, characterized in that, The multi-axis CNC machining equipment also includes: The third bearing housing, connected to the machine base, is disposed between the first bearing housing and the second bearing housing; An idler wheel is rotatably mounted on the third bearing housing and is engaged with the annular member.

5. The multi-axis CNC machining equipment according to claim 1, characterized in that, The tool holder includes a base and two jaws. The base is located on the annular component, and the two jaws are spaced apart on both sides of the base in the horizontal direction to hold the tool for the machining spindle.

6. The multi-axis CNC machining equipment according to claim 5, characterized in that, The ring-shaped component is a chain; or, the ring-shaped component is a belt.

7. The multi-axis CNC machining equipment according to any one of claims 1-6, characterized in that, The multi-axis CNC machining equipment also includes: The mounting bracket is connected between the two uprights and located below the horizontal column; The mounting plate is slidably connected to the mounting bracket for mounting the tool changing mechanism and the tool changing drive component; A first transfer drive is disposed on the mounting bracket. The output end of the first transfer drive is connected to the mounting plate to drive the mounting plate to move along the width direction of the horizontal column, so as to drive the tool changing mechanism and the tool changing drive to approach or move away from the machining spindle in the horizontal direction.

8. The multi-axis CNC machining equipment according to any one of claims 1-6, characterized in that, The processing mechanism also includes: The main shaft mounting component is slidably connected to the cross column; A second transfer drive is provided on the cross column, and the output end of the second transfer drive is connected to the spindle mounting component to drive the spindle mounting component to move along the length direction of the cross column; Multiple third transfer drive units are spaced apart on the spindle mounting component along the length direction of the cross column. Each of the third transfer drive units has a machining spindle mounted at its output end to drive the machining spindle to move in the vertical direction.

9. The multi-axis CNC machining equipment according to claim 8, characterized in that, The multi-axis CNC machining equipment further includes a workpiece mounting mechanism, which is spaced apart from the tool changing mechanism and located below the machining spindle. The workpiece mounting mechanism includes: The fourth transfer drive component is disposed on the base; The clamp mounting component is slidably connected to the machine base; Multiple clamps are spaced apart on the clamp mounting member along the length of the cross column to clamp the workpiece; The fourth transfer drive is used to drive the fixture mounting member to move horizontally along the width direction of the cross column, so as to drive the plurality of fixtures to approach or move away from the machining spindle in the horizontal direction.

10. The multi-axis CNC machining equipment according to claim 9, characterized in that, The fixture mounting component includes a flat plate portion and two vertical plates protruding from the flat plate portion. The two vertical plates are spaced apart on both sides of the flat plate portion along the width direction of the horizontal column. The workpiece mounting mechanism further includes: A swing arm is disposed between the two upright plates, with both ends of the swing arm rotatably connected to the two upright plates respectively, and the plurality of clamps are disposed on the swing arm; A swing drive is provided on one of the two upright plates. The output end of the swing drive is connected to the swing arm, which drives the swing arm to swing relative to the machining spindle.

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