Horizontal Machining Center

Abstract

The present invention discloses a horizontal machining center, which comprises a base, a workbench assembly, a tool magazine assembly and a machining assembly; the workbench assembly includes a workpiece positioning mechanism and a workpiece fixture, the workpiece positioning mechanism is connected to the base, and the workpiece fixture is connected to the workpiece positioning mechanism; the tool magazine assembly is located above the workbench assembly, the tool magazine assembly includes a tool disc, and the tool disc is provided with a plurality of tool seats; the machining assembly is located on the same side of the workbench assembly and the tool magazine assembly, the machining assembly includes a fixed frame, a machining positioning mechanism and a main shaft, the machining positioning mechanism is connected to the fixed frame, the center of gravity of the machining positioning mechanism is located within the fixed frame, and the plane formed by the axes of all the tool seats is parallel to the axis of the main shaft. The present invention arranges the longitudinally arranged tool magazine assembly and workbench assembly on the same side of the machining assembly, and the space utilization rate of the overall structure is high.

Description

Technical Field

[0001] The present invention relates to the technical field of machining centers, and particularly to a horizontal machining center. Background Art

[0002] A machining center generally refers to a numerically controlled milling machine equipped with a tool magazine. By setting up the tool magazine, the tool change operation of the numerically controlled milling machine can be facilitated, thereby improving the working efficiency. A horizontal machining center is a machine tool that realizes corresponding milling operations through a structure with a horizontally arranged spindle.

[0003] A machining center mainly includes a tool magazine, a spindle, and a worktable. The worktable is used to clamp and drive the workpiece to be machined to rotate, and the tool installed on the spindle is used to machine the workpiece to be machined. In the related art, the layouts of the tool magazine, spindle, and worktable of the horizontal machining center are simple, and the overall occupied space of the horizontal machining center is large. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. For this purpose, the present invention provides a horizontal machining center with a compact layout, small occupied space, and stable and reliable positioning actions of the overall structure.

[0005] A horizontal machining center according to an embodiment of the present invention includes a base, a worktable assembly, a tool magazine assembly, and a machining assembly; the worktable assembly includes a workpiece positioning mechanism and a workpiece fixture. The workpiece positioning mechanism is connected to the base, and the workpiece fixture is connected to the workpiece positioning mechanism. The workpiece fixture is used to clamp the workpiece to be machined, and the workpiece positioning mechanism is used to drive the workpiece fixture to move; the tool magazine assembly is located above the worktable assembly. The tool magazine assembly includes a tool disc, and the tool disc is provided with a plurality of tool seats. The tool seats are used to coaxially install tools; the machining assembly is located on the same side of the worktable assembly and the tool magazine assembly. The machining assembly includes a fixed frame, a machining positioning mechanism, and a spindle. The fixed frame is connected to the base, the machining positioning mechanism is connected to the fixed frame, the center of gravity of the machining positioning mechanism is located within the fixed frame, the spindle is connected to the machining positioning mechanism, and the machining positioning mechanism is used to drive the spindle to move so that the spindle reaches one side of the worktable assembly or the tool magazine assembly. The plane formed by the axes of all the tool seats is parallel to the axis of the spindle.

[0006] A horizontal machining center according to an embodiment of the present invention has at least the following beneficial effects: By longitudinally arranging the tool magazine assembly and the workbench assembly, and setting the longitudinally arranged tool magazine assembly and workbench assembly on the same side of the machining assembly, it can effectively reduce the occupied area of the horizontal machining center in the horizontal position, and at the same time can effectively utilize the space above the workbench assembly, with a high space utilization rate of the overall structure. The tool disc and the tool holder connected thereto are horizontally arranged, which can effectively avoid the tool magazine assembly occupying additional longitudinal space, further controlling the occupied space of the horizontal machining center, with a compact layout of the overall structure, and the center of gravity of the machining positioning mechanism is located within the fixed frame, which can effectively improve the stability of the overall structure during operation.

[0007] A horizontal machining center according to some embodiments of the present invention is provided with two workpiece jigs, two tool discs, two spindles and two machining positioning mechanisms. The two spindles are respectively connected to the two machining positioning mechanisms, and each machining positioning mechanism is used to drive the corresponding spindle to move so that the spindle reaches one side of the corresponding workpiece jig or one side of the tool disc.

[0008] A horizontal machining center according to some embodiments of the present invention is provided with a positioning frame on the base. The tool magazine assembly further includes two tool change rotation modules, the tool change rotation modules are connected to the positioning frame, and the two tool discs are respectively connected to the two tool change rotation modules. The tool change rotation modules are used to drive the tool discs to rotate so that the corresponding tool holders rotate to the tool change position or the tool preparation position.

[0009] A horizontal machining center according to some embodiments of the present invention is provided with a reinforcement bridge at the top of the positioning frame, and the two ends of the reinforcement bridge are respectively connected to the fixed frame and the positioning frame.

[0010] A horizontal machining center according to some embodiments of the present invention, the tool magazine assembly further includes a protective cover, the protective cover covers the outside of the tool disc, the protective cover is provided with a tool change opening and a tool preparation opening, the tool change opening faces the machining assembly, and the tool change opening is used to make way for tool change between the tool disc and the spindle, and the tool preparation opening is used to make way for tool preparation of the tool disc.

[0011] A horizontal machining center according to some embodiments of the present invention, the workpiece positioning mechanism includes two first material change rotation modules and two first workpiece rotation modules. The two workpiece jigs are respectively connected to the two first workpiece rotation modules, and the first workpiece rotation modules are used to drive the workpiece jigs to rotate. The two first material change rotation modules are both connected to the base, and the two first workpiece rotation modules are respectively connected to the two first material change rotation modules. The first material change rotation modules are used to drive the first workpiece rotation modules to rotate so that the workpiece to be machined moves closer to or away from the spindle.

[0012] A horizontal machining center according to some embodiments of the present invention, the first loading and rotating module includes a loading motor and a loading rotating member, the first workpiece rotating module is connected to the loading rotating member, the loading motor is connected to the base, the bottom of the loading rotating member is connected to the loading motor, the top of the loading rotating member is rotatably connected to the positioning frame, and the loading motor is used to drive the loading rotating member to rotate.

[0013] A horizontal machining center according to some embodiments of the present invention, the workpiece positioning mechanism includes a second loading and rotating module, two cradle rotating modules and four second workpiece rotating modules, each cradle rotating module is connected to two second workpiece rotating modules, there are four workpiece fixtures, and the four workpiece fixtures are respectively connected to the four second workpiece rotating modules. The cradle rotating module is used to drive the second workpiece rotating module to rotate so as to adjust the workpiece to be machined to the target angle. Both of the two cradle rotating modules are connected to the second loading and rotating module, and the second loading and rotating module is used to drive the cradle rotating module to move closer to or away from the spindle.

[0014] A horizontal machining center according to some embodiments of the present invention, the machining positioning mechanism includes a y-axis linear module, a y-axis moving member, a z-axis linear module, a z-axis moving member, an x-axis linear module and an x-axis moving member. The y-axis linear module is connected to the fixed frame, the y-axis moving member is connected to the y-axis linear module, and the y-axis linear module is used to drive the y-axis moving member to move along the y-axis direction; the z-axis linear module is connected to the y-axis moving member, the z-axis moving member is connected to the z-axis linear module, and the z-axis linear module is used to drive the z-axis moving member to move along the z-axis direction; the x-axis linear module is connected to the z-axis moving member, the x-axis moving member is connected to the x-axis linear module, and the x-axis linear module is used to drive the x-axis moving member to move along the x-axis direction, and the spindle is connected to the x-axis moving member.

[0015] The machining positioning mechanism according to some embodiments of the present invention further includes y-axis guide rails, z-axis guide rails and x-axis guide rails. There are at least two y-axis guide rails and all are connected to the fixed frame. All the y-axis guide rails are evenly distributed around the y-axis moving member, and the y-axis moving member is connected to each y-axis guide rail; there are at least two z-axis guide rails and all are connected to the y-axis moving member. All the z-axis guide rails are evenly distributed around the z-axis moving member, and the z-axis moving member is connected to each z-axis guide rail; there are at least two x-axis guide rails and all are connected to the z-axis moving member. All the x-axis guide rails are evenly distributed around the x-axis moving member, and the x-axis moving member is connected to each x-axis guide rail.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and be readily understood from the following description of embodiments in conjunction with the accompanying drawings, in which:

[0018] Figure 1 Schematic structural diagram of a horizontal machining center according to an embodiment of the present invention;

[0019] Figure 2 Schematic structural diagram of a horizontal machining center according to an embodiment of the present invention when applying a protective cover;

[0020] Figure 3 Schematic structural diagram of a horizontal machining center according to an embodiment of the present invention when applying a protective cover from another perspective;

[0021] Figure 4 Schematic structural diagram of a horizontal machining center according to another embodiment of the present invention;

[0022] Figure 5 Schematic structural diagram of a horizontal machining center according to another embodiment of the present invention from another perspective;

[0023] Figure 6 Schematic structural diagram of a horizontal machining center according to still another embodiment of the present invention;

[0024] Figure 7 Schematic structural diagram of a horizontal machining center according to still another embodiment of the present invention from another perspective.

[0025] Reference numerals:

[0026] Base 1000, positioning frame 1100, reinforcement bridge 1200;

[0027] Workbench assembly 2000, workpiece positioning mechanism 2100, first material-changing rotation module 2110, material-changing motor 2111, material-changing rotating part 2112, first workpiece rotation module 2120, second material-changing rotation module 2130, cradle rotation module 2140, cradle rotation motor 2141, cradle swing seat 2142, second workpiece rotation module 2150, workpiece fixture 2200;

[0028] Tool magazine assembly 3000, tool disc 3100, tool holder 3110, tool 3111, tool-changing rotation module 3200, protective cover 3300, tool-changing opening 3310, standby tool opening 3320;

[0029] Processing assembly 4000, fixed frame 4100, processing positioning mechanism 4200, y-axis linear module 4210, y-axis moving part 4211, y-axis guide rail 4212, z-axis linear module 4220, z-axis moving part 4221, z-axis guide rail 4222, x-axis linear module 4230, x-axis moving part 4231, x-axis guide rail 4232, spindle 4300. Detailed Embodiments

[0030] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0031] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as up, down, left, right, front, back, etc., is based on the orientation or positional relationship shown in the accompanying drawings. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0032] In the description of the present invention, if the first and second are described only for the purpose of distinguishing technical features, they should not be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or the sequence of the indicated technical features.

[0033] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installation, and connection should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.

[0034] In the related art, the spindle of a horizontal machining center is horizontally arranged. To cooperate with it to achieve corresponding actions, the workbench for clamping and driving the workpiece to be machined and the tool magazine for storing tools are horizontally distributed around the spindle. When corresponding actions need to be achieved, it is necessary to drive the workbench, the tool magazine or the spindle to perform complex movements to make the spindle reach one side of the workbench or one side of the tool magazine. Such a horizontal machining center occupies a large space, and cumbersome positioning operations are required to achieve related machining or tool change actions. The overall structure is complex and the machining stability is low.

[0035] Based on this, referring to Figures 1 to 7 , the embodiments of the present invention provide a horizontal machining center. By arranging each component to make full use of the horizontal and longitudinal spaces, the layout of the overall structure is compact, the occupied space of the horizontal machining center is small, and the machining actions of the overall structure are stable and reliable.

[0036] Referring to Figures 1 to 7, a horizontal machining center according to an embodiment of the present invention includes a base 1000, a workbench assembly 2000, a tool magazine assembly 3000, and a machining assembly 4000; the workbench assembly 2000 includes a workpiece positioning mechanism 2100 and a workpiece fixture 2200, the workpiece positioning mechanism 2100 is connected to the base 1000, the workpiece fixture 2200 is connected to the workpiece positioning mechanism 2100, the workpiece fixture 2200 is used for clamping a workpiece to be machined, and the workpiece positioning mechanism 2100 is used for driving the workpiece fixture 2200 to move so as to position the workpiece to be machined at machining positions in different dimensions to achieve multi-dimensional machining of complex workpieces; during the machining process, the chips generated will tend to move downward under the action of their own gravity. The tool magazine assembly 3000 is located above the workbench assembly 2000, which can avoid the chips formed in the area of the workbench assembly 2000 from reaching the area where the tool magazine assembly 3000 is located to the greatest extent. The tool magazine assembly 3000 includes a tool disc 3100, and the tool disc 3100 is provided with a plurality of tool seats 3110. The axis of the tool seat 3110 is arranged along the radial direction of the tool disc 3100, and the tool seat 3110 is used for coaxially mounting a tool 3111, that is, the axis of the tool seat 3110 is collinear with the axis of the tool 3111 it mounts; the machining assembly 4000 is located on the same side of the workbench assembly 2000 and the tool magazine assembly 3000. The machining assembly 4000 includes a fixed frame 4100, a machining positioning mechanism 4200, and a spindle 4300. The fixed frame 4100 is connected to the base 1000, and the machining positioning mechanism 4200 is connected to the fixed frame 4100. The fixed frame 4100 can be set as a rectangular frame structure, that is, the fixed frame 4100 is a frame structure surrounding a closed loop, which can effectively improve the structural stability of the fixed frame 4100. The center of gravity of the machining positioning mechanism 4200 is located within the fixed frame 4100, which can ensure that the machining positioning mechanism 4200 is evenly stressed within the fixed frame 4100, thereby improving the stability of the positioning action formed by the machining positioning mechanism 4200. The spindle 4300 is connected to the machining positioning mechanism 4200. The machining positioning mechanism 4200 is used for driving the spindle 4300 to achieve multi-dimensional movement so that the spindle 4300 reaches one side of the workbench assembly 2000 or one side of the tool magazine assembly 3000, and corresponding machining operations or tool changing operations are realized. The machining positioning mechanism 4200 can also drive the spindle 4300 to achieve other movements to cooperate with different machining requirements. The plane formed by the axes of all the tool seats 3110 is parallel to the axis of the spindle 4300, that is, after the tools 3111 are installed in the tool seats 3110, the plane formed by the axes of all the tools 3111 is parallel to the axis of the spindle 4300, which can reduce the position adjustment required for tool changing operations. In addition, both the tool seats 3110 and the tool disc 3100 are horizontally arranged, which can effectively save the longitudinal space and improve the compactness of the overall structure, and the space utilization rate of the overall structure is high.

[0037] During operation, the workpiece to be machined is clamped by the workpiece fixture 2200. The workpiece positioning mechanism 2100 drives the workpiece fixture 2200 and the workpiece to be machined to perform rotational and other movements. The machining positioning mechanism 4200 drives the spindle 4300 to move closer to the workpiece to be machined, thereby realizing the corresponding milling machining. When tool change is required, the machining positioning mechanism 4200 drives the spindle 4300 to reach one side of the tool holder 3110. At this time, the axis of the spindle 4300 and the axis of the tool holder 3110 are in the same horizontal plane, and the axis of the spindle 4300 is collinear with the axis of the opposite tool holder 3110. An efficient and reliable tool change operation can be achieved between the spindle 4300 and the tool holder 3110.

[0038] By longitudinally arranging the tool magazine assembly 3000 and the workbench assembly 2000, and setting the longitudinally arranged tool magazine assembly 3000 and workbench assembly 2000 on the same side of the machining assembly 4000, the occupied area of the horizontal machining center in the horizontal position can be effectively reduced. At the same time, the space above the workbench assembly 2000 can be effectively utilized, and the space utilization rate of the overall structure is high. The tool 3111 installed on the tool disc 3100 and the tool holder 3ll0 is horizontally arranged, that is, the tool magazine assembly 3000 is horizontally arranged, which can effectively avoid the tool magazine assembly 3000 occupying additional longitudinal space, further controlling the occupied space of the horizontal machining center. The layout of the overall structure is compact, and the machining positioning mechanism 4200 can drive the spindle 4300 to perform lifting movement. The center of gravity of the machining positioning mechanism 4200 is located within the fixed frame 4100. The rectangular fixed frame 4100 can provide sufficient space for the machining positioning mechanism 4200 and the spindle 4300, which can not only effectively improve the stability of the overall structure during operation, with a simple structure, but also further improve the space utilization rate of the overall structure.

[0039] It can be understood that there are two workpiece fixtures 2200, two tool discs 3100, each tool disc 3100 is connected with a plurality of tool holders 3110, there are two spindles 4300 and two machining positioning mechanisms 4200. The two spindles 4300 are respectively connected to the two machining positioning mechanisms 4200. Each machining positioning mechanism 4200 is used to drive the spindle 4300 it is connected to, so that the spindle 4300 reaches one side of the corresponding workpiece fixture 2200 or one side of the tool disc 3100. The two workpiece fixtures 2200 can both clamp the workpiece to be machined. The two machining positioning mechanisms 4200 respectively drive the two spindles 4300 to perform corresponding milling machining on the workpiece to be machined. This horizontal machining center can simultaneously perform milling machining on two workpieces to be machined, with high machining efficiency. The two machining positioning mechanisms 4200 are connected to the same fixed frame 4100, which can simplify the structure of the horizontal machining center while improving the machining efficiency, and the space utilization rate of the overall structure is high. According to application requirements, the workpiece fixture 2200 can be set as a zero-point positioning disc.

[0040] It can be understood that a positioning frame 1100 is provided on the base 1000. The tool magazine assembly 3000 further includes two tool change rotation modules 3200. The tool change rotation modules 3200 are connected to the positioning frame 1100. Two tool disks 3100 are respectively connected to the two tool change rotation modules 3200. The tool change rotation modules 3200 are used to drive the tool disks 3100 to rotate, so that the corresponding tool holders 3110 rotate to the tool change position or the tool preparation position. Among them, when the tool holder 3110 reaches the tool change position, it is used to perform tool change with the machining assembly 4000.

[0041] Specifically, one side of the tool disk 3100 is rotatably connected to the positioning frame 1100 through a bearing, and the other side of the tool disk 3100 is connected to the tool change rotation module 3200. By setting that both sides of the tool disk 3100 are connected with corresponding positioning mechanisms, it can ensure the balanced force when the tool disk 3100 rotates, thereby improving the stability of the movement of the tool disk 3100, and further improving the accuracy of the horizontal machining center to perform corresponding operations.

[0042] It can be understood that a reinforcement bridge 1200 is provided on the top of the positioning frame 1100. The two ends of the reinforcement bridge 1200 are respectively connected to the fixed frame 4100 and the positioning frame 1100. The bottom of the fixed frame 4100 and the bottom of the positioning frame 1100 are both connected to the base 1000. The two ends of the reinforcement bridge 1200 are respectively connected to the top of the fixed frame 4100 and the top of the positioning frame 1100. A structure with the base 1000, the positioning frame 1100, the reinforcement bridge 1200 and the fixed frame 4100 forming a head-to-tail connection can provide a firm installation foundation for each positioning mechanism, thereby improving the reliability of the cooperation between each component, and further improving the machining accuracy.

[0043] It can be understood that, referring to Figures 1 to 5, the tool magazine assembly 3000 further includes a protective cover 3300. The protective cover 3300 is disposed outside the tool disc 3100. The protective cover 3300 has a good protective effect on the tool disc 3100 and the tool holders 3110 and tools 3111 connected thereto, and can effectively improve the reliability of the structure of the tool magazine assembly 3000. The protective cover 3300 is provided with a tool changing opening 3310 and a tool preparation opening 3320. The tool changing opening 3310 faces the machining assembly 4000. The tool changing opening 3310 is used to make way for the tool changing operation between the tool disc 3100 and the spindle 4300. The tool preparation opening 3320 is used to make way for the tool preparation operation of the tool disc 3100. The grabbed tool 3111 can pass through the tool changing opening 3310 or the tool preparation opening 3320 to implement the corresponding tool changing or tool preparation operation. The tool changing opening 3310 and the tool preparation opening 3320 are respectively arranged on the opposite circumferential surfaces of the tool disc 3100. When the horizontal machining center is equipped with two workpiece fixtures 2200, two tool discs 3100 and two spindles 4300, the two tool changing openings 3310 are both arranged on the side facing the machining assembly 4000, and the two tool preparation openings 3320 are both arranged on the side facing away from the machining assembly 4000. When performing the tool preparation operation, the tool preparation manipulator or the operator can implement the corresponding tool preparation operation on the same side of the tool magazine assembly 3000, which can effectively reduce the difficulty of tool preparation.

[0044] It can be understood that with reference to Figures 1 to 3, the workpiece positioning mechanism 2100 includes two first loading and unloading rotary modules 2110 and two first workpiece rotary modules 2120. Two workpiece clamps 2200 are respectively connected to the two first workpiece rotary modules 2120. The first workpiece rotary module 2120 is used to drive the workpiece clamp 2200 to rotate to cooperate with the main shaft 4300 to perform corresponding machining. Both of the two first loading and unloading rotary modules 2110 are connected to the base 1000, and the two first workpiece rotary modules 2120 are respectively connected to the two first loading and unloading rotary modules 2110. The first loading and unloading rotary module 2110 is used to drive the corresponding first workpiece rotary module 2120 to rotate, so that the workpiece to be machined connected to the first workpiece rotary module 2120 through the workpiece clamp 2200 moves closer to or farther away from the corresponding main shaft 4300. Finally, the workpiece to be machined is in a position facing or back to the main shaft 4300. For example: when the first loading and unloading rotary module 2110 indirectly drives the workpiece to be machined to rotate to face the main shaft 4300, the main shaft 4300 can perform corresponding milling machining on the workpiece to be machined; when the first loading and unloading rotary module 2110 indirectly drives the workpiece to be machined to rotate to face away from the main shaft 4300, an external manipulator or worker can perform loading and unloading on the workpiece clamp 2200. The first loading and unloading rotary module 2110 can also be used to cooperate with the first workpiece rotary module 2120 to adjust the position of the workpiece to be machined, which can achieve a higher degree of freedom adjustment effect, and thus meet the requirements of multi-dimensional machining. Each set of the first loading and unloading rotary module 2110, the first workpiece rotary module 2120 and the workpiece clamp 2200 can perform independent driving and positioning actions on a workpiece to be machined. The operations of the two sets of structures on the two workpieces to be machined do not affect each other. Even if a workpiece to be machined in one set of structures fails during machining, it will not affect the machining operation of the workpiece to be machined in the other set of structures, which can further ensure the machining efficiency of the horizontal machining center. The first workpiece rotary module 2120 can be set as a torque motor.

[0045] It can be understood that with reference to Figures 1 to 3 , the first loading and unloading rotary module 2110 includes a loading and unloading motor 2111 and a loading and unloading rotating member 2112. The first workpiece rotary module 2120 is connected to the loading and unloading rotating member 2112. The loading and unloading motor 2111 is connected to the base 1000. The bottom of the loading and unloading rotating member 2112 is connected to the loading and unloading motor 2111, and the top of the loading and unloading rotating member 2112 is rotatably connected to the positioning frame 1100. The loading and unloading motor 2111 is used to drive the loading and unloading rotating member 2112 to rotate, so as to rotate the workpiece to be machined clamped by the corresponding workpiece clamp 2200 to face or back to the main shaft 4300. Corresponding rotation positioning structures are provided at both the upper and lower ends of the loading and unloading rotating member 2112, which can ensure the force balance when the loading and unloading rotating member 2112 rotates, thereby effectively improving the reliability of the rotation positioning action of the first loading and unloading rotary module 2110. Optionally, the loading and unloading motor 2111 is set as a torque motor.

[0046] It can be understood that with reference to Figure 4 and Figure 5 , the workpiece positioning mechanism 2100 includes a second material-changing rotary module 2130, two cradle rotary modules 2140, and four second workpiece rotary modules 2150. Two second workpiece rotary modules 2150 are connected to each cradle rotary module 2140. There are four workpiece clamps 2200, and the four workpiece clamps 2200 are respectively connected to the four second workpiece rotary modules 2150. The cradle rotary module 2140 is used to drive the second workpiece rotary module 2150, the workpiece clamp 2200 connected thereto, and the workpiece to be machined to rotate, so that the workpiece to be machined is adjusted to a target angle to cooperate with the corresponding machining. A non-zero angle is formed between the rotation axis of the cradle rotary module 2140 and the rotation axis of the second workpiece rotary module 2150, which can improve the controllability of the positioning action of the workpiece to be machined. The two cradle rotary modules 2140 are both connected to the second material-changing rotary module 2130, that is, the second workpiece rotary module 2150 is connected to the second material-changing rotary module 2130 through the cradle rotary module 2140. The second material-changing rotary module 2130 is used to drive the corresponding cradle rotary module 2140 to move closer to or away from the main shaft 4300, so that the workpiece to be machined installed at the corresponding position moves to face or back to the main shaft 4300. When one of the cradle rotary modules 2140 is in a position close to the main shaft 4300, the workpiece to be machined indirectly provided on the cradle rotary module 2140 can cooperate with the main shaft 4300 to perform the corresponding milling machining, while the other cradle rotary module 2140 is in a position far from the main shaft 4300, and the workpiece clamp 2200 provided on the cradle rotary module 2140 can be replaced with materials. The processing efficiency of the overall structure can be effectively improved by the alternate feeding method. The second material-changing rotary module 2130 can also be used to cooperate with the cradle rotary module 2140 and the second workpiece rotary module 2150 to adjust the position of the workpiece to be machined, and a higher degree of freedom adjustment effect can be achieved, so as to meet the requirements of multi-dimensional machining. There are two tool holders 3100 and two main shafts 4300. The two tool holders 3100 are used for the two main shafts 4300 to perform the corresponding tool changing operations, and the two main shafts 4300 respectively perform the corresponding milling machining on the two workpieces to be machined indirectly connected in the middle of the same cradle rotary module 2140. Optionally, both the second material-changing rotary module 2130 and the second workpiece rotary module 2150 are set as torque motors.

[0047] Specifically, the cradle rotation module 2140 includes a cradle rotation motor 2141 and a cradle swing seat 2142. The cradle rotation motor 2141 is connected to the second material-changing rotation module 2130, the cradle swing seat 2142 is connected to the cradle rotation motor 2141, and the second workpiece rotation module 2150 is connected to the cradle swing seat 2142. The cradle rotation motor 2141 is used to drive the cradle swing seat 2142 to swing and rotate, so that the workpiece to be processed indirectly connected to the cradle swing seat 2142 rotates to the target angle, thereby meeting the corresponding processing requirements.

[0048] It can be understood that, with reference to Figure 6 and Figure 7 , the workpiece positioning mechanism 2100 includes a material-changing motor 2111 and a material-changing rotating part 2112. There are two workpiece clamps 2200, and the two workpiece clamps 2200 are connected to the opposite sides of the material-changing rotating part 2112. The material-changing motor 2111 is used to drive the material-changing rotating part 2112 to rotate, so that the two workpiece clamps 2200 can exchange positions to achieve alternate loading and unloading. In addition, the material-changing motor 2111 can drive the material-changing rotating part 2112 to rotate, so that the workpiece to be processed clamped by the workpiece clamp 2200 rotates by a specified angle, thereby meeting the processing requirements in different dimensions.

[0049] It can be understood that the machining positioning mechanism 4200 includes a y-axis linear module 4210, a y-axis moving part 4211, a z-axis linear module 4220, a z-axis moving part 4221, an x-axis linear module 4230, and an x-axis moving part 4231. The y-axis linear module 4210 is connected to the fixed frame 4100, the y-axis moving part 4211 is connected to the y-axis linear module 4210, and the y-axis linear module 4210 is used to drive the y-axis moving part 4211 to move in a direction parallel to the y-axis; the z-axis linear module 4220 is connected to the y-axis moving part 4211, the z-axis moving part 4221 is connected to the z-axis linear module 4220, and the z-axis linear module 4220 is used to drive the z-axis moving part 4221 to move in a direction parallel to the z-axis; the x-axis linear module 4230 is connected to the z-axis moving part 4221, the x-axis moving part 4231 is connected to the x-axis linear module 4230, and the x-axis linear module 4230 is used to drive the x-axis moving part 4231 to move in a direction parallel to the x-axis. The main shaft 4300 is connected to the x-axis moving part 4231, and the machining positioning mechanism 4200 can drive the main shaft 4300 to perform three-dimensional xyz movement.

[0050] Specifically, the main shaft 4300 is parallel to the x-axis. Along the x-axis direction, the workbench assembly 2000 and the tool magazine assembly 3000 are arranged on the same side of the machining assembly 4000, and the z-axis represents the up and down direction.

[0051] It can be understood that the machining positioning mechanism 4200 further includes a y-axis guide rail 4212, a z-axis guide rail 4222, and an x-axis guide rail 4232. There are at least two y-axis guide rails 4212, and all the y-axis guide rails 4212 are connected to the fixed frame 4100. All the y-axis guide rails 4212 are evenly distributed around the y-axis moving part 4211. The y-axis moving part 4211 is connected to each y-axis guide rail 4212, and the y-axis moving part 4211 can slide relative to the y-axis guide rail 4212. The y-axis guide rail 4212 is used to achieve a reliable limiting effect on the y-axis moving part 4211. Under the restriction of the y-axis guide rails 4212 evenly distributed around it, the y-axis moving part 4211 can obtain a uniform limiting force, so as to ensure that the y-axis moving part 4211 can achieve stable linear motion; there are at least two z-axis guide rails 4222, and all the z-axis guide rails 4222 are connected to the y-axis moving part 4211. All the z-axis guide rails 4222 are evenly distributed around the z-axis moving part 4221. The z-axis moving part 4221 is connected to each z-axis guide rail 4222, and the z-axis moving part 4221 can slide relative to the z-axis guide rail 4222. The z-axis guide rail 4222 is used to achieve a reliable limiting effect on the z-axis moving part 4221. Under the restriction of the z-axis guide rails 4222 evenly distributed around it, the z-axis moving part 4221 can obtain a uniform limiting force, so as to ensure that the z-axis moving part 4221 can achieve stable linear motion; there are at least two x-axis guide rails 4232, and all the x-axis guide rails 4232 are connected to the z-axis moving part 4221. All the x-axis guide rails 4232 are evenly distributed around the x-axis moving part 4231. The x-axis moving part 4231 is connected to each x-axis guide rail 4232, and the x-axis moving part 4231 can slide relative to the x-axis guide rail 4232. The x-axis guide rail 4232 is used to achieve a reliable limiting effect on the x-axis moving part 4231. Under the restriction of the x-axis guide rails 4232 evenly distributed around it, the x-axis moving part 4231 can obtain a uniform limiting force, so as to ensure that the x-axis moving part 4231 can achieve stable linear motion, and finally ensure the positioning effect formed by the machining positioning mechanism 4200 on the main shaft 4300.

[0052] Specifically, both the y-axis movable member 4211 and the z-axis movable member 4221 are in a figure-eight structure. By setting the figure-eight structure, the weight of the processing component 4000 can be effectively reduced, and the lightweight degree of the overall structure can be improved. In addition, the z-axis movable member 4221 is disposed through the opening of the y-axis movable member 4211, the x-axis movable member 4231 is disposed through the opening of the z-axis movable member 4221. The center of gravity of the z-axis movable member 4221 is set inside the y-axis movable member 4211, the center of gravity of the x-axis movable member 4231 is set inside the z-axis movable member 4221, the main shaft 4300 is installed inside the x-axis movable member 4231, and the center of gravity of the main shaft 4300 is set inside the x-axis movable member 4231. Through the above settings, the stability of the positioning action during the operation of the overall processing component 4000 can be effectively improved, and the positioning accuracy formed for the main shaft 4300 can be effectively improved.

[0053] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A horizontal machining center, characterized in that, Comprising: Base; Workbench assembly, including a workpiece positioning mechanism and a workpiece fixture, the workpiece positioning mechanism is connected to the base, the workpiece fixture is connected to the workpiece positioning mechanism, the workpiece fixture is used for clamping the workpiece to be processed, and the workpiece positioning mechanism is used for driving the workpiece fixture to move; Tool magazine assembly, located above the workbench assembly, the tool magazine assembly includes a tool disc, the tool disc is provided with a plurality of tool seats, and the tool seats are used for coaxially mounting tools; Processing assembly, located on the same side of the workbench assembly and the tool magazine assembly, the processing assembly includes a fixed frame, a processing positioning mechanism and a main shaft, the fixed frame is connected to the base, the processing positioning mechanism is connected to the fixed frame, the center of gravity of the processing positioning mechanism is located within the fixed frame, the main shaft is connected to the processing positioning mechanism, and the processing positioning mechanism is used for driving the main shaft to move so that the main shaft reaches one side of the workbench assembly or the tool magazine assembly, and the plane formed by the axes of all the tool seats is parallel to the axis of the main shaft.

2. A horizontal machining center according to claim 1, characterized in that, There are two workpiece fixtures, two tool discs, two main shafts and two processing positioning mechanisms. The two main shafts are respectively connected to the two processing positioning mechanisms, and each processing positioning mechanism is used for driving the corresponding main shaft to move so that the main shaft reaches one side of the corresponding workpiece fixture or one side of the tool disc.

3. A horizontal machining center according to claim 2, characterized in that, A positioning frame is provided on the base, and the tool magazine assembly further includes two tool changing rotation modules. The tool changing rotation modules are connected to the positioning frame, and the two tool discs are respectively connected to the two tool changing rotation modules. The tool changing rotation modules are used for driving the tool discs to rotate so that the corresponding tool seats rotate to the tool changing position or the tool preparation position.

4. A horizontal machining center according to claim 3, characterized in that, A reinforcement bridge is provided at the top of the positioning frame, and the two ends of the reinforcement bridge are respectively connected to the fixed frame and the positioning frame.

5. A horizontal machining center according to claim 3, characterized in that, The tool magazine assembly further includes a protective cover, the protective cover covers the outside of the tool disc, the protective cover is provided with a tool changing opening and a tool preparation opening, the tool changing opening faces the processing assembly, the tool changing opening is used for making way for tool changing between the tool disc and the main shaft, and the tool preparation opening is used for making way for tool preparation of the tool disc.

6. A horizontal machining center according to claim 3, characterized in that, The workpiece positioning mechanism includes two first material changing rotation modules and two first workpiece rotation modules. The two workpiece fixtures are respectively connected to the two first workpiece rotation modules. The first workpiece rotation module is used for driving the workpiece fixture to rotate. The two first material changing rotation modules are both connected to the base, and the two first workpiece rotation modules are respectively connected to the two first material changing rotation modules. The first material changing rotation module is used for driving the first workpiece rotation module to rotate so that the workpiece to be processed moves closer to or away from the main shaft.

7. A horizontal machining center according to claim 6, characterized in that, The first material changing rotation module includes a material changing motor and a material changing rotating part. The first workpiece rotation module is connected to the material changing rotating part. The material changing motor is connected to the base. The bottom of the material changing rotating part is connected to the material changing motor. The top of the material changing rotating part is rotatably connected to the positioning frame. The material changing motor is used for driving the material changing rotating part to rotate.

8. A horizontal machining center according to claim 1, characterized in that, The workpiece positioning mechanism includes a second material changing and rotating module, two cradle rotating modules, and four second workpiece rotating modules. Each cradle rotating module is connected to two of the second workpiece rotating modules. Four workpiece clamps are provided, and the four workpiece clamps are respectively connected to the four second workpiece rotating modules. The cradle rotating module is used to drive the second workpiece rotating module to rotate so as to adjust the workpiece to be processed to a target angle. The two cradle rotating modules are both connected to the second material changing and rotating module, and the second material changing and rotating module is used to drive the cradle rotating module to move closer to or away from the main shaft.

9. A horizontal machining center according to claim 1, characterized in that, The machining positioning mechanism includes a y-axis linear module, a y-axis moving part, a z-axis linear module, a z-axis moving part, an x-axis linear module, and an x-axis moving part. The y-axis linear module is connected to the fixed frame, and the y-axis moving part is connected to the y-axis linear module. The y-axis linear module is used to drive the y-axis moving part to move along the y-axis direction. The z-axis linear module is connected to the y-axis moving part, and the z-axis moving part is connected to the z-axis linear module. The z-axis linear module is used to drive the z-axis moving part to move along the z-axis direction. The x-axis linear module is connected to the z-axis moving part, and the x-axis moving part is connected to the x-axis linear module. The x-axis linear module is used to drive the x-axis moving part to move along the x-axis direction, and the main shaft is connected to the x-axis moving part.

10. A horizontal machining center according to claim 9, characterized in that, The machining positioning mechanism further includes a y-axis guide rail, a z-axis guide rail, and an x-axis guide rail. There are at least two y-axis guide rails, and all of them are connected to the fixed frame. All the y-axis guide rails are evenly distributed around the y-axis moving part, and the y-axis moving part is connected to each y-axis guide rail. There are at least two z-axis guide rails, and all of them are connected to the y-axis moving part. All the z-axis guide rails are evenly distributed around the z-axis moving part, and the z-axis moving part is connected to each z-axis guide rail. There are at least two x-axis guide rails, and all of them are connected to the z-axis moving part. All the x-axis guide rails are evenly distributed around the x-axis moving part, and the x-axis moving part is connected to each x-axis guide rail.

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