Double-spindle drilling and tapping center

Abstract

The utility model belongs to the technical field of machining centers, and particularly relates to a double-spindle drilling and tapping center which comprises a machine tool base, a saddle and a machine tool stand column, the machine tool base is horizontally arranged, and a Y-axis driving module moving in the Y-axis direction is arranged at the upper end of the machine tool base. The saddle is arranged at the driving end of the Y-axis driving module. A first X-axis driving module and a second X-axis driving module are arranged at the left end and the right end of the saddle correspondingly. The first workbench and the second workbench are arranged on the first X-axis driving module and the second X-axis driving module respectively. A machine tool stand column is arranged on the machine tool base, two containing cavities are formed in the machine tool stand column, a left Z-axis driving module and a right Z-axis driving module are sequentially placed in the two containing cavities, and the left Z-axis driving module is connected with the left spindle box. A left main shaft is installed in the left main shaft box, and the left flying saucer type tool magazine is detachably connected with the left main shaft. The driving end of the right Z-axis driving module is vertically connected with the right spindle box. A right main shaft is installed in the left main shaft box, a right flying saucer type tool magazine is arranged on the upper side of the corresponding containing cavity, and the right flying saucer type tool magazine is detachably connected with the right main shaft.

Description

Technical Field

[0001] This utility model belongs to the field of machining center technology, and in particular relates to a dual-spindle drilling and tapping center. Background Technology

[0002] With the development of manufacturing, drilling and tapping machines, as an important type of metal cutting equipment, are widely used in aerospace, automobile manufacturing, mold processing, and many other industries. With the development of automation and the advent of new industrial equipment, the application of drilling and tapping machines is becoming increasingly widespread, and the demand is growing. Drilling and tapping machines on the market are typically three-axis machine tools. These machines have only one workstation on their worktable. Each time a workpiece is processed, processing needs to be stopped after completion, followed by loading and unloading of workpieces from the worktable. During this loading and unloading process, the processing speed of the drilling and tapping machine is significantly affected.

[0003] Chinese patent publication CN111097947A discloses a three-axis CNC machining center, including a horizontally arranged bed and a wall-type column fixedly installed on the upper surface of the bed. A worktable is mounted on the upper surface of the bed via a Y-axis motion mechanism, which drives the worktable to move horizontally along the Y-axis. A slide is mounted on the vertical working surface of the wall-type column near the worktable via an X-axis motion mechanism, which drives the slide to move horizontally along the X-axis. A spindle box is mounted on the outer side of the slide via a Z-axis motion mechanism, which drives the spindle box to move vertically along the Z-axis. A vertical spindle is mounted on the spindle box. In this design, the worktable has only one station. Each time a workpiece is processed, processing must be stopped after completion. Workpieces are then loaded and unloaded from the worktable. Only after a workpiece is finished can it be removed, and another workpiece placed on the worktable. During this process, the loading and unloading time significantly affects the machining rate of the machine tool, reducing work efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a dual-spindle drilling and tapping center, which aims to solve the technical problem of low processing efficiency in existing drilling and tapping machines.

[0005] To achieve the above objectives, this utility model provides a dual-spindle drilling and tapping center, including a machine tool base, a saddle, and a machine tool column. The machine tool base is horizontally positioned, and its upper end is equipped with a Y-axis drive module that moves along the Y-axis. The saddle is mounted on the drive end of the Y-axis drive module and slides along the Y-axis under its drive. A first X-axis drive module and a second X-axis drive module that move along the X-axis are respectively mounted on the left and right ends of the saddle, and the two modules are arranged opposite each other. A first worktable and a second worktable are respectively mounted on the drive ends of the first and second X-axis drive modules and slide along the X-axis under their drive. A machine tool column is vertically mounted on the machine tool base, and the machine tool column has two independent placement cavities. The left Z-axis drive module and the right Z-axis drive module are placed in the two placement cavities sequentially. The drive end of the left Z-axis drive module is vertically connected to a left spindle box and drives it to slide along the Z-axis. A left spindle with a horizontal axis is installed inside the left spindle box. A left saucer-shaped tool magazine is located on the upper side of the corresponding placement cavity. The left saucer-shaped tool magazine and the left spindle are detachably connected. The drive end of the right Z-axis drive module is vertically connected to a right spindle box and drives it to slide along the Z-axis. A right spindle with a horizontal axis is installed inside the left spindle box. A right saucer-shaped tool magazine is located on the upper side of the corresponding placement cavity. The right saucer-shaped tool magazine and the right spindle are detachably connected.

[0006] Furthermore, the saddle has X-axis guide rails at both ends. The first X-axis drive module includes a first X-axis screw, a first X-axis motor, a first X-axis nut seat, and a first X-axis tailstock. The first X-axis motor and the first X-axis tailstock are both located at the upper end of the saddle. One end of the first X-axis screw is connected to the first X-axis motor, and the other end is connected to the first X-axis tailstock. The bottom end of the first worktable has a first X-axis slider, which is slidably connected to the X-axis guide rails. The first X-axis nut seat is sleeved on the first X-axis screw, and the top end of the first X-axis nut seat is connected to the first worktable, allowing the first worktable to slide on the saddle in conjunction with the X-axis guide rails and the first X-axis slider. The second X-axis drive module includes a second X-axis screw, a second X-axis motor, a second X-axis nut seat, and a second X-axis tailstock. The second X-axis motor and the second X-axis tailstock are both located at the upper end of the saddle. One end of the second X-axis screw is connected to the second X-axis motor, and the other end is connected to the second X-axis tailstock. The bottom of the second worktable is equipped with a second X-axis slider, which is slidably connected to the X-axis guide rail. The second X-axis nut seat is sleeved on the second X-axis screw, and the top of the second X-axis nut seat is connected to the second worktable. Together with the X-axis guide rail and the second X-axis slider, the second worktable slides on the saddle.

[0007] Furthermore, the Y-axis drive module includes two Y-axis guide rails, a Y-axis motor, a Y-axis screw, a Y-axis nut seat, and a Y-axis tailstock. The Y-axis motor and tailstock are both located on the upper end of the machine tool base. One end of the Y-axis screw is connected to the Y-axis motor, and the other end is connected to the Y-axis tailstock. The two Y-axis guide rails are located at both ends of the machine tool base, and a Y-axis slider is provided at the bottom of the corresponding saddle. The Y-axis slider is slidably connected to the Y-axis guide rails. The Y-axis nut seat is fitted onto the Y-axis screw, and the top of the Y-axis nut seat is connected to the saddle, allowing the saddle to slide on the machine tool base in conjunction with the Y-axis guide rails and the Y-axis slider.

[0008] Furthermore, a main tool magazine support is provided at the top of the machine tool column. One end of the main tool magazine support is connected to the left flying saucer-type tool magazine, and the lower end of the left flying saucer-type tool magazine is also connected to the lower end of the main tool magazine support by a spring. The other end of the main tool magazine support is connected to the right flying saucer-type tool magazine, and the lower end of the right flying saucer-type tool magazine is also connected to the lower end of the main tool magazine support by another spring.

[0009] Furthermore, the main tool magazine support is also equipped with a left tool magazine support and a right tool magazine support in sequence. One end of the left tool magazine support is connected to the left saucer-shaped tool magazine, and the lower end of the left saucer-shaped tool magazine is also connected to the lower end of the left tool magazine support via a spring. One end of the right tool magazine support is connected to the right saucer-shaped tool magazine, and the lower end of the right saucer-shaped tool magazine is also connected to the lower end of the right tool magazine support via a spring.

[0010] Furthermore, the left Z-axis drive module includes two left Z-axis guide rails, a left Z-axis screw, a left Z-axis motor, a left Z-axis nut seat, and a left Z-axis tailstock. The left Z-axis motor and the left Z-axis tailstock are both mounted on the inner wall of one of the mounting cavities. One end of the left Z-axis screw is connected to the left Z-axis motor, and the other end is connected to the left Z-axis tailstock. The two left Z-axis guide rails are located at both ends of the machine tool column, and a left Z-axis slider is provided corresponding to the left spindle box. The left Z-axis slider is slidably connected to the left Z-axis guide rails. The left Z-axis nut seat is sleeved on the left Z-axis screw, and the top end of the left Z-axis nut seat is connected to the left spindle box. Together with the left Z-axis guide rails and the left Z-axis slider, the left spindle box slides on the machine tool column.

[0011] Furthermore, the right Z-axis drive module includes two right Z-axis guide rails, a right Z-axis screw, a right Z-axis motor, a right Z-axis nut seat, and a right Z-axis tailstock. The right Z-axis motor and tailstock are both mounted on the inner wall of another mounting cavity. One end of the right Z-axis screw is connected to the right Z-axis motor, and the other end is connected to the right Z-axis tailstock. The two right Z-axis guide rails are located at both ends of the machine tool column, and a right Z-axis slider is provided corresponding to the right spindle box. The right Z-axis slider is slidably connected to the right Z-axis guide rails. The right Z-axis nut seat is sleeved on the right Z-axis screw, and the top of the right Z-axis nut seat is connected to the right spindle box. Together with the right Z-axis guide rails and the right Z-axis slider, the right spindle box slides on the machine tool column.

[0012] Furthermore, a left frame extends outward from the left spindle box, with the top of the left frame connected to the left spindle motor. The drive end of the left spindle motor points downward and connects to the left spindle to drive its rotation. A right frame extends outward from the right spindle box, with the top of the right frame connected to the right spindle motor. The drive end of the right spindle motor points downward and connects to the right spindle to drive its rotation.

[0013] Furthermore, both the left and right spindles are connected to the left and right tool magazine supports respectively via a tool-breaking buffer unit. The tool-breaking buffer unit includes a tool-breaking arm, a tool-breaking block, and a roller. The tool-breaking block is mounted on the left tool magazine support. One end of the tool-breaking arm is rotatably connected to the left spindle, and the other end is rotatably connected to the roller, so that the roller moves on the tool-breaking block.

[0014] Furthermore, both the first and second worktables are provided with several parallel locking slots.

[0015] Furthermore, the left and right flying saucer tool magazines are misaligned along the X-axis, and the angle between the two tool magazines at their intersection points is an acute angle of 45 to 89 degrees. The left flying saucer tool magazine is located at the leftmost end of the left tool magazine bracket, and the right flying saucer tool magazine is located at the front end of the right tool magazine bracket.

[0016] The above-mentioned technical solutions in the dual-spindle drilling and tapping center provided in this embodiment of the utility model have at least one of the following technical effects:

[0017] In this design, two workpieces to be processed are placed on the first and second worktables respectively, and adjusted to their initial processing positions via the X-axis and Y-axis drive modules. After the equipment is started, the left and right spindles perform drilling, tapping, and other machining operations on the workpieces on the left and right worktables according to program instructions. Simultaneously, the saucer-type tool magazine allows for tool changes as needed, ensuring continuous processing. After processing is complete, the worktables are moved to the unloading position via the X-axis and Y-axis drive modules, unloading the processed workpieces and preparing for the next round of processing. The independent X-axis drive module and worktable configuration allow for independent control of each worktable, and the dual-spindle design allows for simultaneous processing of two workpieces at different positions, significantly shortening the processing cycle. The saucer-type tool magazine's quick tool change function reduces tool change time, while the high-precision control of each axis drive module ensures machining accuracy. Attached Figure Description

[0018] 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.

[0019] Figure 1A schematic diagram of the overall structure of the dual-spindle drilling and tapping center provided in an embodiment of this utility model;

[0020] Figure 2 A schematic diagram of the structure of the machine tool base of the dual-spindle drilling and tapping center provided in this embodiment of the utility model;

[0021] Figure 3 A schematic diagram of the structure of the saddle for the dual-spindle drilling and tapping center provided in this embodiment of the utility model;

[0022] Figure 4 A schematic diagram of the left Z-axis drive module of the dual-spindle drilling and tapping center provided in this embodiment of the utility model;

[0023] Figure 5 A schematic diagram of the right Z-axis drive module of the dual-spindle drilling and tapping center provided in this embodiment of the utility model;

[0024] Figure 6 A schematic diagram of the tool buffer unit of the dual-spindle drilling and tapping center provided in this embodiment of the utility model.

[0025] Figure 7 This is a top view of the dual-spindle drilling and tapping center provided in an embodiment of the present invention.

[0026] The following are the labeling elements in the figure:

[0027] 100. Machine tool base; 110. Saddle; 120. Machine tool column; 121. Placement cavity; 130. First worktable; 140. Second worktable; 150. Locking slot;

[0028] 200. First X-axis drive module; 201. First X-axis screw; 202. First X-axis motor; 203. First X-axis nut seat; 204. First X-axis tailstock; 205. First X-axis slider; 210. Second X-axis drive module; 211. Second X-axis screw; 212. Second X-axis motor; 213. Second X-axis nut seat; 214. Second X-axis tailstock; 215. Second X-axis slider; 230. X-axis guide rail;

[0029] 300. Y-axis drive module; 310. Y-axis guide rail; 320. Y-axis motor; 330. Y-axis screw; 340. Y-axis nut seat; 350. Y-axis tailstock; 360. Y-axis slider;

[0030] 400. Left Z-axis drive module; 401. Left Z-axis guide rail; 402. Left Z-axis screw; 403. Left Z-axis motor; 404. Left Z-axis nut seat; 405. Left Z-axis tailstock; 406. Left Z-axis slider;

[0031] 410. Right Z-axis drive module; 411. Right Z-axis guide rail; 412. Right Z-axis screw; 413. Right Z-axis motor; 414. Right Z-axis nut seat; 415. Right Z-axis tailstock; 416. Right Z-axis slider;

[0032] 500, Left spindle box; 510, Left spindle; 520, Left saucer-type tool magazine; 530, Right spindle box; 540, Right spindle; 550, Right saucer-type tool magazine;

[0033] 600. Main tool magazine support; 610. Left tool magazine support; 611. Right tool magazine support; 620. Left frame; 630. Right frame; 640. Left spindle motor; 650. Right spindle motor;

[0034] 700, Cutting blade buffer unit; 710, Cutting blade arm; 720, Cutting blade block; 730, Roller. Detailed Implementation

[0035] The embodiments of this utility model are described in detail below, examples of which are shown in the accompanying drawings 1-7, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The following description is based on the accompanying drawings. Figure 1-7 The described embodiments are exemplary and intended to explain embodiments of the present invention, and should not be construed as limiting the present invention.

[0036] 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.

[0037] 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.

[0038] 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.

[0039] In one embodiment of this utility model, such as Figure 1-6 As shown, a dual-spindle drilling and tapping center is provided, including a machine tool base 100, a saddle 110, and a machine tool column 120. The machine tool base 100 is horizontally arranged, and a Y-axis drive module 300 that moves along the Y-axis is provided at its upper end. The saddle 110 is disposed on the drive end of the Y-axis drive module 300 and slides along the Y-axis direction under its drive. A first X-axis drive module 200 and a second X-axis drive module 210 that move along the X-axis are respectively provided at the left and right ends of the saddle 110, and the two modules are arranged opposite to each other. A first worktable 130 and a second worktable 140 are respectively disposed on the drive end of the first X-axis drive module 200 and the drive end of the second X-axis drive module 210, and slide along the X-axis direction under their drive. A machine tool column 120 is vertically mounted on the machine tool base 100. The machine tool column 120 has two independent placement cavities 121, which sequentially house a left Z-axis drive module 400 and a right Z-axis drive module 410. The drive end of the left Z-axis drive module 400 is vertically connected to a left spindle box 500, driving it to slide along the Z-axis. A left spindle 510 with a horizontal axis is installed inside the left spindle box 500. A left saucer-shaped tool magazine 520 is located on the upper side of the corresponding placement cavity 121, and the left saucer-shaped tool magazine 520 is detachably connected to the left spindle 510. The drive end of the right Z-axis drive module 410 is vertically connected to a right spindle box 530 and drives it to slide along the Z-axis direction; a right spindle 540 with a horizontal axis is installed in the left spindle box 500, and a right flying saucer-type tool magazine 550 is provided on the upper side of the corresponding placement cavity 121. The right flying saucer-type tool magazine 550 and the right spindle 540 are detachably connected.

[0040] Specifically, the two workpieces to be processed are placed on the first worktable 130 and the second worktable 140 respectively, and adjusted to the initial processing position by the X-axis and Y-axis drive modules 300. After the equipment is started, the left and right spindles perform drilling, tapping, and other processing operations on the workpieces on the left and right worktables respectively according to the program instructions. At the same time, the saucer-type tool magazine can change tools as needed to ensure continuous processing. After processing is completed, the worktables are moved to the unloading position by the X-axis and Y-axis drive modules 300 to unload the processed workpieces and prepare for the next round of processing. The independent X-axis drive module and worktable configuration allow each worktable to be controlled independently, and the dual-spindle design allows for the simultaneous processing of two workpieces at different positions, significantly shortening the processing cycle. The quick tool change function of the saucer-type tool magazine reduces tool change time, while the high-precision control of each axis drive module ensures processing accuracy.

[0041] Furthermore, such as Figure 1 , 3As shown, the saddle 110 has X-axis guide rails 230 at both ends. The first X-axis drive module 200 includes a first X-axis screw 201, a first X-axis motor 202, a first X-axis nut seat 203, and a first X-axis tailstock 204. The first X-axis motor 202 and the first X-axis tailstock 204 are both located at the upper end of the saddle 110. One end of the first X-axis screw 201 is connected to the first X-axis motor 202, and the other end is connected to the first X-axis tailstock 204. The bottom end of the first worktable 130 has a first X-axis slider 205, which is slidably connected to the X-axis guide rails 230. The first X-axis nut seat 203 is sleeved on the first X-axis screw 201, and the top end of the first X-axis nut seat 203 is connected to the first worktable 130. The first worktable 130 slides on the saddle 110 in conjunction with the X-axis guide rails 230 and the first X-axis slider 205. The second X-axis drive module 210 includes a second X-axis screw 211, a second X-axis motor 212, a second X-axis nut seat 213, and a second X-axis tailstock 214. The second X-axis motor 212 and the second X-axis tailstock 214 are both located on the upper end of the saddle 110. One end of the second X-axis screw 211 is connected to the second X-axis motor 212, and the other end is connected to the second X-axis tailstock 214. A second X-axis slider 215 is provided at the bottom of the second worktable 140, and the second X-axis slider 215 is slidably connected to the X-axis guide rail 230. The second X-axis nut seat 213 is sleeved on the second X-axis screw 211, and the top end of the second X-axis nut seat 213 is connected to the second worktable 140. Together with the X-axis guide rail 230 and the second X-axis slider 215, the second worktable 140 slides on the saddle 110. Specifically, the two X-axis drive modules share the same X-axis guide rail 230. Through precise design of the X-axis guide rail 230 and the slider, the stability and accuracy of the first worktable 130 and the second worktable 140 during sliding are ensured, thereby improving machining accuracy. The first X-axis drive module 200 and the second X-axis drive module 210 are independently configured, allowing for separate control of the movement of the first worktable 130 and the second worktable 140 along the X-axis direction, enhancing the flexibility of the equipment and enabling it to adapt to various machining needs.

[0042] Furthermore, such as Figure 1 , 2As shown, the Y-axis drive module 300 includes two Y-axis guide rails 310, a Y-axis motor 320, a Y-axis screw 330, a Y-axis nut seat 340, and a Y-axis tailstock 350. The Y-axis motor 320 and the Y-axis tailstock 350 are both located on the upper end of the machine tool base 100. One end of the Y-axis screw 330 is connected to the Y-axis motor 320, and the other end is connected to the Y-axis tailstock 350. The two Y-axis guide rails 310 are located at both ends of the machine tool base 100. A Y-axis slider 360 is provided at the bottom of the saddle 110, and the Y-axis slider 360 is slidably connected to the Y-axis guide rails 310. The Y-axis nut seat 340 is sleeved on the Y-axis screw 330, and the top end of the Y-axis nut seat 340 is connected to the saddle 110, allowing the saddle 110 to slide on the machine tool base 100 in conjunction with the Y-axis guide rails 310 and the Y-axis slider 360. Specifically, the Y-axis drive module 300 is integrated onto the machine tool base 100, making the entire device compact in structure and small in footprint, facilitating installation and use in limited spaces. The precise design of the Y-axis guide rail 310 and slider ensures the stability and accuracy of the saddle 110 during sliding, thereby improving the overall machining precision of the device.

[0043] Furthermore, such as Figure 1 , 4As shown in Figure 5, a main tool magazine support 600 is provided at the top of the machine tool column 120. One end of the main tool magazine support 600 is connected to the left disc-shaped tool magazine 520, and the lower end of the left disc-shaped tool magazine 520 is also connected to the lower end of the main tool magazine support 600 by a spring. The other end of the main tool magazine support 600 is connected to the right disc-shaped tool magazine 550, and the lower end of the right disc-shaped tool magazine 550 is also connected to the lower end of the main tool magazine support 600 by another spring. The main tool magazine support 600 is provided with a left tool magazine support 610 and a right tool magazine support 611 in sequence. One end of the left tool magazine support 610 is connected to the left disc-shaped tool magazine 520, and the lower end of the left disc-shaped tool magazine 520 is also connected to the lower end of the left tool magazine support 610 by a spring. One end of the right tool magazine bracket 611 is connected to the right flying saucer-type tool magazine 550, and the lower end of the right flying saucer-type tool magazine 550 is also connected to the lower end of the right tool magazine bracket 611 by a spring. Specifically, the tool magazine bracket can be integrated or separate. By programming the machining center and adding a tool changing program, taking the left spindle box 500 as an example, the left spindle box 500 is moved to a designated position by the left Z-axis drive module 400. The movement of the left spindle box 500 locks the tool on the left spindle 510 into the slot of the left flying saucer-type tool magazine 520. The left flying saucer-type tool magazine 520 is set in the left tool magazine bracket 610 and moves relative to the left spindle 510 under the action of the spring. Therefore, the left Z-axis drive module 400 further controls the removal and return of the tool at the lower end of the left spindle 510 to the corresponding position of the left flying saucer-type tool magazine 520, thus completing the tool removal. The system's tool change signal controls the rotation of the left saucer-type tool magazine 520, moving the corresponding tool to the designated position. The left Z-axis drive module 400 then drives the left spindle 510 to press down and install the new tool, completing the tool change. The saucer-type tool magazine is an existing technology widely used in drilling and tapping machines, allowing for rapid tool selection and replacement, thereby improving machining efficiency.

[0044] Furthermore, such as Figure 1 , 4As shown in Figure 5, the left Z-axis drive module 400 includes two left Z-axis guide rails 401, a left Z-axis screw 402, a left Z-axis motor 403, a left Z-axis nut seat 404, and a left Z-axis tailstock 405. The left Z-axis motor 403 and the left Z-axis tailstock 405 are both mounted on the inner wall of one of the placement cavities 121. One end of the left Z-axis screw 402 is connected to the left Z-axis motor 403, and the other end is connected to the left Z-axis tailstock 405. The two left Z-axis guide rails 401 are located at both ends of the machine tool column 120. A left Z-axis slider 406 is provided corresponding to the left spindle box 500, and the left Z-axis slider 406 is slidably connected to the left Z-axis guide rails 401. The left Z-axis nut seat 404 is fitted onto the left Z-axis screw 402, and the top of the left Z-axis nut seat 404 is connected to the left spindle box 500. Together with the left Z-axis guide rail 401 and the left Z-axis slider 406, the left spindle box 500 slides on the machine tool column 120. Through the precise design of the left Z-axis guide rail 401 and slider, the stability and accuracy of the left spindle box 500 during sliding are ensured, thereby improving the overall machining accuracy of the equipment.

[0045] Furthermore, such as Figure 1 , 4 As shown in Figure 5, the right Z-axis drive module 410 includes two right Z-axis guide rails 411, a right Z-axis screw 412, a right Z-axis motor 413, a right Z-axis nut seat 414, and a right Z-axis tailstock 415. The right Z-axis motor 413 and the right Z-axis tailstock 415 are both mounted on the inner wall of another placement cavity 121. One end of the right Z-axis screw 412 is connected to the right Z-axis motor 413, and the other end is connected to the right Z-axis tailstock 415. The two right Z-axis guide rails 411 are mounted at both ends of the machine tool column 120, and a right Z-axis slider 416 is provided corresponding to the right spindle box 530. The right Z-axis slider 416 is slidably connected to the right Z-axis guide rails 411. The right Z-axis nut seat 414 is fitted onto the right Z-axis screw 412, and the top of the right Z-axis nut seat 414 is connected to the right spindle box 530. Together with the right Z-axis guide rail 411 and the right Z-axis slider 416, the right spindle box 530 slides on the machine tool column 120. Through the precise design of the right Z-axis guide rail 411 and slider, the stability and accuracy of the right spindle box 530 during sliding are ensured, thereby improving the overall machining accuracy of the equipment.

[0046] Furthermore, such as Figure 1 , 4As shown in Figure 5, a left spindle box 500 extends outward to form a left frame 620. The top of the left frame 620 is connected to a left spindle motor 640. The drive end of the left spindle motor 640 points downward and connects to the left spindle 510 to drive the left spindle 510 to rotate. A right spindle box 530 extends outward to form a right frame 630. The top of the right frame 630 is connected to a right spindle motor 650. The drive end of the right spindle motor 650 points downward and connects to the right spindle 540 to drive the right spindle 540 to rotate. Specifically, the left spindle box 500 and the right spindle box 530 extend outward to form the left frame 620 and the right frame 630, respectively, making the installation of the motor and spindle more compact, reducing the floor space occupied, and facilitating installation and use in limited spaces.

[0047] Furthermore, such as Figure 1 , 6 As shown, the left spindle 510 and the right spindle 540 are both connected to the left tool magazine support 610 and the right tool magazine support 611 respectively through the tool-breaking buffer unit 700. The tool-breaking buffer unit 700 includes a tool-breaking arm 710, a tool-breaking block 720 and a roller 730. The tool-breaking block 720 is mounted on the left tool magazine support 610. One end of the tool-breaking arm 710 is rotatably connected to the left spindle 510, and the other end is rotatably connected to the roller 730, so that the roller 730 moves on the tool-breaking block 720. Specifically, when a tool needs to be changed, the tool-changing arm 710 rotates under the drive of the spindle, causing the roller 730 to roll on the tool-changing block 720. During its movement, the roller 730 releases and clamps the tool through its rolling motion. Once the tool is released, a new tool can be pushed from the tool magazine to the spindle position and clamped onto the spindle by the actions of the tool-changing arm 710 and the roller 730. The entire process is automatically controlled, and tool changes can be quickly achieved through the machine tool's control system. This results in a smooth tool changing process and reduces vibration and impact caused by tool changes.

[0048] Furthermore, such as Figure 3 As shown, both the first worktable 130 and the second worktable 140 are provided with several parallel locking grooves 150 for fixing the workpiece.

[0049] Furthermore, such as Figure 1 , 7 As shown, the left saucer-type tool magazine 520 and the right saucer-type tool magazine 550 are offset along the X-axis. The angle between the intersection points of the two tool magazines is an acute angle of 45 to 89 degrees, with 85 degrees being preferred (a1 and a2 are equal in geometric relationship). The left saucer-type tool magazine 520 is located at the leftmost end of the left tool magazine bracket 610, and the right saucer-type tool magazine 550 is located at the front end of the right tool magazine bracket 611. To optimize space utilization and avoid interference between the tool magazines during tool changing or loading, necessary clearance space is left between them.

[0050] The above description is only a preferred embodiment of the present utility model and is 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-spindle drilling and tapping center, characterized in that, include A machine tool base (100) is horizontally arranged and has a Y-axis drive module (300) that moves along the Y-axis at its upper end. A saddle (110) is disposed on the drive end of the Y-axis drive module (300) and slides along the Y-axis direction under its drive; a first X-axis drive module (200) and a second X-axis drive module (210) that move along the X-axis are respectively disposed at the left and right ends of the saddle (110), and the two modules are disposed opposite to each other; a first worktable (130) and a second worktable (140) are respectively disposed on the drive end of the first X-axis drive module (200) and the drive end of the second X-axis drive module (210), and slide along the X-axis direction under its drive; A machine tool column (120) is vertically mounted on the machine tool base (100). The machine tool column (120) has two independent placement cavities (121). A left Z-axis drive module (400) and a right Z-axis drive module (410) are sequentially placed in the two placement cavities (121). The drive end of the left Z-axis drive module (400) is vertically connected to a left spindle box (500) and drives it to slide along the Z-axis direction. A left spindle (510) with a horizontal axis is installed inside the left spindle box (500). The corresponding placement cavity... A left saucer-shaped tool magazine (520) is provided on the upper side of (121), and the left saucer-shaped tool magazine (520) is detachably connected to the left spindle (510); the driving end of the right Z-axis drive module (410) is vertically connected to a right spindle box (530) and drives it to slide along the Z-axis direction; a right spindle (540) with a horizontal axis is installed in the left spindle box (500), and a right saucer-shaped tool magazine (550) is provided on the upper side of the corresponding placement cavity (121), and the right saucer-shaped tool magazine (550) is detachably connected to the right spindle (540).

2. The dual-spindle drilling and tapping center according to claim 1, characterized in that, The saddle (110) has X-axis guide rails (230) at both ends. The first X-axis drive module (200) includes a first X-axis screw (201), a first X-axis motor (202), a first X-axis nut seat (203), and a first X-axis tailstock (204). The first X-axis motor (202) and the first X-axis tailstock (204) are both located at the upper end of the saddle (110). One end of the first X-axis screw (201) is connected to the first X-axis motor (202), and the other end is connected to the first X-axis nut seat (203). X-axis tailstock (204); the bottom end of the first worktable (130) is provided with a first X-axis slider (205), the first X-axis slider (205) is slidably connected to the X-axis guide rail (230); the first X-axis nut seat (203) is sleeved on the first X-axis screw (201), and the top end of the first X-axis nut seat (203) is connected to the first worktable (130), which, together with the X-axis guide rail (230) and the first X-axis slider (205), enables the first worktable (130) to move in the desired direction. The second X-axis drive module (210) slides on the saddle (110); the second X-axis drive module (210) includes a second X-axis screw (211), a second X-axis motor (212), a second X-axis nut seat (213), and a second X-axis tailstock (214); the second X-axis motor (212) and the second X-axis tailstock (214) are both located at the upper end of the saddle (110), one end of the second X-axis screw (211) is connected to the second X-axis motor (212), and the other end is connected to the second X-axis tailstock (214); The bottom end of the second worktable (140) is provided with a second X-axis slider (215), which is slidably connected to the X-axis guide rail (230); the second X-axis nut seat (213) is sleeved on the second X-axis screw (211), and the top end of the second X-axis nut seat (213) is connected to the second worktable (140), which, together with the X-axis guide rail (230) and the second X-axis slider (215), allows the second worktable (140) to slide on the saddle (110).

3. The dual-spindle drilling and tapping center according to claim 1, characterized in that, The Y-axis drive module (300) includes two Y-axis guide rails (310), a Y-axis motor (320), a Y-axis screw (330), a Y-axis nut seat (340), and a Y-axis tailstock (350). The Y-axis motor (320) and the Y-axis tailstock (350) are both located at the upper end of the machine tool base (100). One end of the Y-axis screw (330) is connected to the Y-axis motor (320), and the other end is connected to the Y-axis tailstock (350). The two Y-axis guide rails (310) are located on the upper end of the machine tool base (100). At both ends of the bed base (100), corresponding to the bottom end of the saddle (110), there are Y-axis sliders (360), the Y-axis sliders (360) are slidably connected to the Y-axis guide rail (310); the Y-axis nut seat (340) is sleeved on the Y-axis screw (330), and the top end of the Y-axis nut seat (340) is connected to the saddle (110), which, together with the Y-axis guide rail (310) and the Y-axis slider (360), allows the saddle (110) to slide on the machine tool base (100).

4. The dual-spindle drilling and tapping center according to claim 1, characterized in that, The top of the machine tool column (120) is provided with a main tool magazine bracket (600). One end of the main tool magazine bracket (600) is connected to the left flying saucer-type tool magazine (520), and the lower end of the left flying saucer-type tool magazine (520) is also connected to the lower end of the main tool magazine bracket (600) by a spring. The other end of the main tool magazine bracket (600) is connected to the right flying saucer-type tool magazine (550), and the lower end of the right flying saucer-type tool magazine (611) is also connected to the lower end of the main tool magazine bracket (600) by another spring.

5. The dual-spindle drilling and tapping center according to claim 4, characterized in that, The main tool magazine support (600) is also provided with a left tool magazine support (610) and a right tool magazine support (611) in sequence. One end of the left tool magazine support (610) is connected to the left flying saucer-shaped tool magazine (520), and the lower end of the left flying saucer-shaped tool magazine (520) is also connected to the lower end of the left tool magazine support (610) by a spring. One end of the right tool magazine support (611) is connected to the right flying saucer-shaped tool magazine (550), and the lower end of the right flying saucer-shaped tool magazine (550) is also connected to the lower end of the right tool magazine support (611) by a spring.

6. The dual-spindle drilling and tapping center according to claim 1, characterized in that, The left Z-axis drive module (400) includes two left Z-axis guide rails (401), a left Z-axis screw (402), a left Z-axis motor (403), a left Z-axis nut seat (404), and a left Z-axis tailstock (405); the left Z-axis motor (403) and the left Z-axis tailstock (405) are both disposed on the inner sidewall of one of the placement cavities (121), one end of the left Z-axis screw (402) is connected to the left Z-axis motor (403), and the other end is connected to the left Z-axis tailstock (405); the two left Z-axis guide rails (401) are disposed on the inner sidewall of one of the placement cavities (121). At both ends of the machine tool column (120), a left Z-axis slider (406) is provided corresponding to the left spindle box (500). The left Z-axis slider (406) is slidably connected to the left Z-axis guide rail (401). The left Z-axis nut seat (404) is sleeved on the left Z-axis screw (402), and the top end of the left Z-axis nut seat (404) is connected to the left spindle box (500). The left Z-axis guide rail (401) and the left Z-axis slider (406) cooperate to allow the left spindle box (500) to slide on the machine tool column (120).

7. The dual-spindle drilling and tapping center according to claim 6, characterized in that, The right Z-axis drive module (410) includes two right Z-axis guide rails (411), a right Z-axis screw (412), a right Z-axis motor (413), a right Z-axis nut seat (414), and a right Z-axis tailstock (415); the right Z-axis motor (413) and the right Z-axis tailstock (415) are both disposed on the inner sidewall of another placement cavity (121), one end of the right Z-axis screw (412) is connected to the right Z-axis motor (413), and the other end is connected to the right Z-axis tailstock (415); the two right Z-axis guide rails (411) are disposed on the inner sidewall of another placement cavity (121). At both ends of the machine tool column (120), a right Z-axis slider (416) is provided corresponding to the right spindle box (530). The right Z-axis slider (416) is slidably connected to the right Z-axis guide rail (411). The right Z-axis nut seat (414) is sleeved on the right Z-axis screw (412), and the top end of the right Z-axis nut seat (414) is connected to the right spindle box (530). The right Z-axis guide rail (411) and the right Z-axis slider (416) cooperate to allow the right spindle box (530) to slide on the machine tool column (120).

8. The dual-spindle drilling and tapping center according to claim 1, characterized in that, The left spindle box (500) extends outward to form a left frame (620). The top of the left frame (620) is connected to a left spindle motor (640). The drive end of the left spindle motor (640) is downward and connected to the left spindle to drive the left spindle to rotate. The right spindle box (530) extends outward to form a right frame (630). The top of the right frame (630) is connected to a right spindle motor (650). The drive end of the right spindle motor (650) is downward and connected to the right spindle (540) to drive the right spindle (540) to rotate.

9. The dual-spindle drilling and tapping center according to claim 5, characterized in that, The left spindle and the right spindle (540) are both connected to the left tool magazine support (610) and the right tool magazine support (611) respectively through a tool-breaking buffer unit (700). The tool-breaking buffer unit (700) includes a tool-breaking arm (710), a tool-breaking block (720) and a roller (730). The tool-breaking block (720) is mounted on the left tool magazine support (610). One end of the tool-breaking arm (710) is rotatably connected to the left spindle, and the other end is rotatably connected to the roller (730), so that the roller (730) moves on the tool-breaking block (720).

10. The dual-spindle drilling and tapping center according to claim 5, characterized in that, The left saucer-shaped tool magazine (520) and the right saucer-shaped tool magazine (550) are misaligned along the X-axis, and the angle between the two tool magazines at their intersection points is an acute angle of 45 to 89 degrees. The left saucer-shaped tool magazine (520) is located at the leftmost end of the left tool magazine bracket (610), and the right saucer-shaped tool magazine (550) is located at the front end of the right tool magazine bracket (611).

Images