Double-workbench horizontal machining center structure

Abstract

The utility model belongs to the technical field of numerical control machine tools, and particularly relates to a double-workbench horizontal machining center structure which comprises a base, a saddle, a first driving mechanism, a spindle seat and a second driving mechanism, the saddle is arranged on the base in a sliding mode, the first driving mechanism is connected with the saddle, the spindle seat is arranged on the saddle in a sliding mode, and the second driving mechanism is connected with the spindle seat. The spindle seat is provided with a spindle; the device further comprises a rotating driving mechanism, a rotating base, a workbench and a lifting driving mechanism. The rotating driving mechanism is arranged on the base, the rotating seat is arranged on the rotating driving mechanism, the two sides of the rotating seat are respectively provided with a workbench, the workbenches are connected with the rotating seat in an up-down sliding mode, the workbenches are connected with the same lifting driving mechanism, and the lifting driving mechanism alternately drives the workbenches on the two sides of the rotating seat to ascend and descend; and the rotary driving mechanism drives the rotary seat and is used for driving the workbenches on different sides of the rotary seat to alternately face the main shaft.

Description

Technical Field

[0001] This utility model belongs to the field of CNC machine tool technology, and in particular relates to a structure of a horizontal machining center with a double worktable. Background Technology

[0002] Horizontal machining centers, as a common type of machine tool, play a vital role in modern manufacturing. Traditional horizontal machining centers typically employ a single worktable structure. While this structure is simple and reliable, frequent workpiece changes significantly impact production efficiency in practical applications. With the continuous improvement of industrial automation, the market demand for efficient and flexible machining equipment is increasing. Therefore, developing dual-worktable horizontal machining centers capable of rapid worktable switching has become a research hotspot. Existing technological solutions: Currently, some horizontal machining centers on the market are attempting to improve work efficiency by modifying the worktable design.

[0003] For example, Chinese utility model patent document CN221848663U discloses a horizontal machining center, including a base, wherein: a main electric rotary table is fixedly installed at one end of the base, and a Z-axis linear drive mechanism is fixedly installed on the base; several material tables are evenly distributed and fixedly installed on the output end of the main electric rotary table; a frame is fixedly installed on the Z-axis linear drive mechanism, and the frame is slidably connected to the base; a Y-axis linear drive mechanism is fixedly installed on the frame, and an X-axis linear drive mechanism is installed on the Y-axis linear drive mechanism via threaded transmission, and the X-axis linear drive mechanism is slidably connected to the frame; two slides are fixedly installed at the bottom of the frame, and the slides are slidably connected to the Z-axis linear drive mechanism; a spindle seat is installed on the X-axis linear drive mechanism via threaded transmission, and a spindle is fixedly installed on the spindle seat. By placing the workpiece on the corresponding machining table, while the spindle is processing the workpiece on one of the machining tables, the workpiece to be processed can be placed on other machining tables in advance. In this way, during the workpiece alternation process, the spindle waiting time can be reduced, the waste of time can be reduced, and the processing efficiency of the workpiece can be effectively improved.

[0004] The technical solution disclosed in the aforementioned patent document uses a turntable to switch the worktable. During processing, the column is driven to move and the spindle moves up and down. Therefore, a large driving force is required, which increases the driving energy consumption. In addition, the guide rail supporting the column is subjected to a large load, which increases wear and other problems. Utility Model Content

[0005] The purpose of this utility model is to provide a dual-table horizontal machining center structure to solve the problem that keeping the height of the worktable constant in the horizontal machining center and allowing the spindle to move forward, backward, left, right, up, and down will increase the load on the drive column and accelerate the wear of the guide rail at the bottom of the column.

[0006] To achieve the above objectives, this utility model provides a dual-table horizontal machining center structure, including a base, a saddle, a first drive mechanism, a spindle seat, and a second drive mechanism. The saddle is slidably mounted on the base. The first drive mechanism is connected to the saddle and drives the saddle to translate. The spindle seat is slidably mounted on the saddle. The second drive mechanism is connected to the spindle seat and drives the spindle seat to move, perpendicular to the direction of movement of the saddle. The spindle seat has a spindle. The system also includes a rotary drive mechanism, a rotary seat, worktables, and a lifting drive mechanism. The rotary drive mechanism is mounted on the base, and the rotary seat is mounted on the rotary drive mechanism. A worktable is provided on each side of the rotary seat, and the worktables are slidably connected to the rotary seat. Each worktable is connected to the same lifting drive mechanism, which alternately drives the worktables on both sides of the rotary seat to rise and fall. The rotary drive mechanism drives the rotary seat, causing the worktables on different sides of the rotary seat to alternately face the spindle.

[0007] Furthermore, the lifting drive mechanism includes a motor, a lead screw, a nut seat, and a clutch assembly; the rotating seat has a hollow internal structure, the motor is mounted on the rotating seat, one end of the lead screw is connected to the main shaft of the motor, and the other end is rotatably connected to the rotating seat, the nut seat is provided with a ball nut that cooperates with the lead screw; a clutch assembly is provided between each worktable and the nut seat for connecting the nut seat and the worktable.

[0008] Furthermore, the clutch assembly includes a connecting seat and a telescopic cylinder. The connecting seat is located on the inner side of the worktable, the telescopic cylinder is located on the connecting seat, and the nut seat is provided with a positioning groove that mates with the telescopic end of the telescopic cylinder.

[0009] Furthermore, the connecting seat has a positioning cavity on the side near the nut seat, the telescopic cylinder is located in the positioning cavity, and the telescopic end of the telescopic cylinder is also provided with a positioning block, one end of the positioning block is slidably engaged with the positioning cavity.

[0010] Furthermore, a support base is provided on one side of the base, and the support base is equipped with a tool magazine.

[0011] Furthermore, one end of the base is provided with a boss, and the other end is provided with a groove. The saddle is provided on the boss, and the rotary drive mechanism is provided in the groove. The groove has two inclined sides. The bottom end of the boss is provided with a chip removal groove. The chip removal groove passes through the boss, and one end is higher than the bottom of the groove, while the other end extends downward at an incline.

[0012] Furthermore, one end of the saddle extends out of the base, and the bottom of the end of the saddle extending out of the base is provided with an inclined cut.

[0013] The above-mentioned technical solutions in the dual-table horizontal machining center structure provided by this utility model embodiment have at least the following technical effects:

[0014] First, the workpiece to be processed is positioned on a worktable away from the spindle. The rotary drive mechanism drives the rotary seat to rotate, so that the worktable holding the workpiece faces the spindle. This worktable is driven up and down by a lifting drive mechanism. The other worktable is positioned away from the spindle, and the two worktables move up and down independently. Therefore, when the worktable facing the spindle is processing the workpiece, it does not affect the workpiece clamping on the other worktable. Thus, while one worktable is processing a workpiece, the other worktable can be clamped, improving efficiency. Because the worktable rises and falls while the saddle moves horizontally during workpiece processing, the overall load on the machine tool is more reasonable, avoiding wear caused by excessive load. Furthermore, the worktable is supported on the side of the rotary seat. During processing, the force exerted by the spindle on the worktable is supported by the side of the rotary seat, making the workpiece on the worktable more stable during processing and preventing workpiece loosening due to excessive cutting force. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A structural diagram of a dual-worktable horizontal machining center provided in an embodiment of this utility model.

[0017] Figure 2 This is a structural diagram of the other side of the dual-worktable horizontal machining center structure provided in an embodiment of the present utility model.

[0018] Figure 3 A cross-sectional view of the rotary table of the horizontal machining center structure with dual worktables provided in this embodiment of the utility model. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein 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 intended to explain the embodiments of this utility model, and should not be construed as limiting the utility model.

[0020] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0022] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0023] In one embodiment of the dual-table horizontal machining center structure of this utility model, please refer to... Figures 1 to 3A dual-table horizontal machining center includes a base 100, a saddle 200, a first drive mechanism 300, a spindle seat 400, a second drive mechanism 500, a rotary drive mechanism 600, a rotary table 700, a worktable 800, and a lifting drive mechanism 900. The saddle 200 is slidably mounted on the base 100. The first drive mechanism 300 is connected to the saddle 200 and drives the saddle 200 to translate. The spindle seat 400 is slidably mounted on the saddle 200. The second drive mechanism 500 is connected to the spindle seat 400 and drives the spindle seat 400 to move, perpendicular to the direction of movement of the saddle 200. Specifically, both the first drive mechanism 300 and the second drive mechanism 500 are electric lead screw assemblies or linear motors. The spindle seat 400 is equipped with a spindle 410. A rotary drive mechanism 600 is mounted on the base 100, and a rotary seat 700 is mounted on the rotary drive mechanism 600. The rotary drive mechanism 600 drives the rotary seat 700 to rotate and change direction. Preferably, the rotary drive mechanism 600 is a hydraulic rotary table. A worktable 800 is provided on each side of the rotary seat 700, and the worktables 800 are slidably connected to the rotary seat 700 vertically. A lifting drive mechanism 900 is connected to the worktables 800, alternately driving the worktables 800 on both sides of the rotary seat 700 to rise and fall. The rotary drive mechanism 700 drives the rotary seat 700, thereby driving the worktables 800 on different sides of the rotary seat 700 to alternately face the spindle 810. Preferably, worktables 800 are provided on opposite sides of the rotary seat 700. Therefore, the rotary drive mechanism 700 drives the rotary seat 700 to rotate 180° to achieve position switching, facilitating the change of workpieces on the worktables 800 by the operator.

[0024] A specific embodiment of the lifting drive mechanism 900 driving the two worktables 800 to alternately lift and lower. Specifically, refer to... Figures 1 to 3The lifting drive mechanism 900 includes a motor 910, a lead screw 920, a nut seat 930, and a clutch assembly 940. The rotary seat 700 has a hollow internal structure. The motor 910 is mounted on the rotary seat 700. One end of the lead screw 920 is connected to the main shaft of the motor 910, and the other end is rotatably connected to the rotary seat 700. The nut seat 930 has a ball nut 931 that mates with the lead screw 920. A clutch assembly 940 is provided between each worktable 800 and the nut seat 930 to connect the nut seat 930 and the worktable 800. The workpiece to be processed is positioned on a worktable 800 away from the spindle 410. A rotary drive mechanism 700 drives a rotary seat 700 to rotate, causing the worktable 800 holding the workpiece to face the spindle 410. The clutch assembly 940 of this worktable 800 is connected to a nut seat 930, forming a single unit between the worktable 800 and the nut seat 930. Meanwhile, the clutch assembly 940 of the other worktable 800 is disengaged from the nut seat 930. A motor 910 drives a lead screw 920, causing the worktable 800 connected to the nut seat 930 to rise and fall. The other worktable can then be used to load and unload the workpiece, clamping it onto the worktable 800. Therefore, this embodiment utilizes a set of lifting drive mechanisms 900 to alternately drive the two worktables 800. While one worktable 800 is being driven to rise and fall, the other worktable 800 can descend to the bottom of the rotary seat 700, facilitating the loading and unloading of parts.

[0025] Furthermore, referring to Figure 3 The clutch assembly 940 includes a connecting seat 941 and a telescopic cylinder 942. The connecting seat 941 is located inside the worktable 800, and the telescopic cylinder 942 is located on the connecting seat 941. The nut seat 930 has a positioning groove 932 that mates with the telescopic end of the telescopic cylinder 942. In this embodiment, at least one clutch assembly 940 must always be engaged with the nut seat 930 to ensure that the nut seat 930 can rise and fall normally. Specifically, the motor 910 drives the lead screw 920 suspension seat, causing the nut seat 930 to move the worktable 800 connected to it to the lowest position, and the clutch assembly 940 in the worktable 800 connected to the nut seat 930 must engage with the nut seat 930. Specifically, the telescopic cylinder 942 extends into the positioning groove 932, thereby connecting the worktable 800 with the nut seat 930.

[0026] Furthermore, refer to Figure 3 The connecting seat 941 has a positioning cavity 943 on the side near the nut seat 930. The telescopic cylinder 942 is located in the positioning cavity 943, and the telescopic end of the telescopic cylinder 942 is also provided with a positioning block 944. One end of the positioning block 944 is slidably engaged with the positioning cavity 943. Specifically, in this embodiment, when the worktable 800 is connected to the nut seat 930, the telescopic cylinder 942 pushes the positioning block 944 into the positioning groove 932 to achieve positioning.

[0027] Furthermore, refer to Figure 1 and Figure 2 A support base 110 is provided on one side of the base 100, and a tool magazine 120 is provided on the support base 110. This enables the spindle 410 to automatically change cutting tools.

[0028] Furthermore, refer to Figure 1 and Figure 2 The base 100 has a boss 130 at one end and a groove 101 at the other end. A saddle 200 is mounted on the boss 130, and a rotary drive mechanism 600 is located within the groove 101. The groove 101 has two inclined sides. The bottom end of the boss 130 has a chip removal groove 131 that extends through the boss 130, with one end higher than the bottom of the groove 101 and the other end extending downwards at an incline. In this embodiment, the processed debris and coolant can be collected in the groove 131 and discharged from the chip removal groove 131.

[0029] Furthermore, refer to Figure 1 , Figure 2 One end of the saddle 200 extends out of the base 100, and the bottom of the end of the saddle 200 extending out of the base 100 is provided with an inclined cut 201. In this embodiment, the length of the saddle 200 can be increased, thereby increasing the stroke of the spindle seat 400. At the same time, the weight of the saddle 200 can be reduced while ensuring the strength of the part of the saddle 200 extending out of the base 100.

[0030] This utility model discloses a dual-table horizontal machining center. First, the workpiece to be processed is positioned on a worktable 800 away from the spindle 410. A rotary drive mechanism 600 drives a rotary seat 700 to rotate, causing the worktable 800 holding the workpiece to face the spindle 410. This worktable 800 is driven to move up and down by a lifting drive mechanism 900. The other worktable 800 is positioned away from the spindle 410, and the two worktables 800 move up and down independently. Therefore, when the worktable 800 facing the spindle 410 is processing the workpiece, it does not affect the workpiece clamping on the other worktable 800. Thus, while one worktable 800 is processing a workpiece, the other worktable can be clamped, improving efficiency. Because the worktable 800 moves up and down while the saddle 200 moves horizontally during workpiece processing, the overall load on the machine tool is more reasonable, avoiding the problem of excessive load and wear. In addition, the worktable 800 is supported on the side of the rotary seat 700. During machining, the force exerted by the spindle 410 on the worktable 800 is supported by the side of the rotary seat 700, which makes the workpiece on the worktable 800 more stable during machining and avoids the problem of workpiece loosening caused by excessive cutting force.

[0031] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dual table horizontal machining center structure, characterized by, The utility model provides a kind of multi-axis rotary workbench, including base, saddle, first driving mechanism, main shaft seat and second driving mechanism, the saddle is slidably provided on the base, the first driving mechanism is connected the saddle, for driving the saddle translation, the main shaft seat is slidably provided on the saddle, the second driving mechanism is connected the main shaft seat, for driving the main shaft seat moves, and with the moving direction of the saddle is mutually perpendicular, the main shaft seat is equipped with main shaft;Its characterized in that, further include rotary drive mechanism, rotary seat, workbench and lifting drive mechanism;The rotary drive mechanism is provided on the base, the rotary seat is provided on the rotary drive mechanism, both sides of the rotary seat are provided with one the workbench respectively, the workbench is slidably connected the rotary seat, each the workbench is connected same the lifting drive mechanism, the lifting drive mechanism alternately drives the workbench of the rotary seat both sides lifting;The rotary drive mechanism drives the rotary seat, for driving the workbench of the rotary seat different side alternately towards the main shaft.

2. Dual table horizontal machining center structure according to claim 1, characterized in that: Both sides of the rotary seat are provided with the workbench.

3. Double table horizontal machining center structure according to claim 1 or 2, characterized in that: The lifting drive mechanism includes motor, screw rod, nut seat and clutch assembly;The rotary seat is internally hollow structure, the motor is provided on the rotary seat, one end of the screw rod is connected the main shaft of the motor, and the other end is rotatably connected the rotary seat, the nut seat is provided with ball nut matched with the screw rod;Each the workbench is provided with clutch assembly between the nut seat, for connecting the nut seat and the workbench.

4. Dual table horizontal machining center structure according to claim 3, characterized in that: The clutch assembly includes connecting seat and telescopic cylinder, the connecting seat is provided on the inner side of the workbench, the telescopic cylinder is provided on the connecting seat, the nut seat is provided with positioning groove matched with the telescopic end of the telescopic cylinder.

5. Dual table horizontal machining center structure according to claim 4, characterized in that: The side of the connecting seat close to the nut seat is provided with positioning cavity, the telescopic cylinder is provided in the positioning cavity, the telescopic end of the telescopic cylinder is also provided with positioning block, one end of the positioning block is slidably matched with the positioning cavity.

6. Dual table horizontal machining center structure according to claim 1, characterized in that: One side of the base is provided with support seat, and the support seat is provided with tool magazine.

7. The dual table horizontal machining center structure of claim 1, wherein: One end of the base is provided with boss, and the other end is provided with recess, the saddle is provided on the boss, and the rotary drive mechanism is provided in the recess;The recess has two inclined sides, the bottom end of the boss is provided with chip removal groove, the chip removal groove penetrates the boss, and one end is higher than the groove bottom of the recess, and the other end extends downwardly and downwardly.

8. Double table horizontal machining center structure according to claim 1 or 7, characterized in that: One end of the saddle extends out of the base, and the bottom of the end of the saddle extending out of the base is provided with inclined cutout.

9. Double table horizontal machining center structure according to claim 1 or 7, characterized in that: The rotary drive mechanism is oil pressure rotary table.

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