Double-workbench bidirectional translation exchange device, exchange method and machining center

Abstract

The invention relates to the technical field of machining centers, and particularly provides a double-workbench bidirectional translation exchange device, an exchange method and a machining center. The double-workbench bidirectional translation exchange device comprises a machining area, a feeding and discharging area and two workbenches matched in the machining area and the feeding and discharging area for mobile exchange; the machining area is provided with a shifting mechanism, and the feeding and discharging area is provided with a two-way exchange station. The machining area is provided with a first transposition point and a second transposition point, and the feeding and discharging area is provided with a third transposition point and a fourth transposition point. Through the four-transposition-point layout of the machining area and the feeding and discharging area, the independent circulation design of the double workbenches and the cooperative cooperation of the displacement mechanism and the two-way exchange station, complete parallel machining, feeding and discharging and uniform feeding and discharging positions are achieved, and the machining efficiency is greatly improved; a full-translation type exchange structure is adopted, a traditional rotating arm design is abandoned, the space layout is optimized, and the operation safety and the workshop space utilization rate are improved.

Description

A dual-table bidirectional translational exchange device, exchange method, and machining center Technical Field

[0001] This invention relates to the field of machining center technology, specifically to a dual-table bidirectional translational exchange device, exchange method, and machining center. Background Technology

[0002] A machining center is a highly automated, multi-functional CNC machine tool equipped with a tool magazine and automatic tool changer. With continuous technological advancements, various types of machining centers have emerged to adapt to different machining conditions and requirements. Among them, a vertical machining center refers to a machining center where the spindle axis is perpendicular to the worktable. It is mainly suitable for machining complex parts such as sheet metal, discs, molds, and small housings. Vertical machining centers can perform milling, boring, drilling, tapping, and thread cutting operations.

[0003] Traditional machining centers often employ unidirectional translation or segmented interchange structures for loading and unloading. The loading and unloading areas are frequently distributed on both sides of the equipment or at different workstations, requiring manual or automated loading and unloading devices to frequently adjust their working positions. This is cumbersome and prone to interference during loading and unloading. Furthermore, the workbench exchange process of some devices can only be started after the processing area has been completed, resulting in significant waiting gaps and preventing fully parallel operations, thus limiting processing efficiency. Some exchange devices also use a rotating arm structure, which occupies a large amount of side space during rotation. This not only restricts the flexibility of workshop layout but also increases the risk of collisions with operators or surrounding equipment, posing safety hazards. Summary of the Invention

[0004] In view of the shortcomings of the prior art described above, the purpose of this invention is to provide a dual-worktable bidirectional translational exchange device, exchange method and machining center to solve the problems of inconvenience in loading and unloading operations using unidirectional translation or segmented switching structures in the prior art, as well as the problems of significant waiting gaps during loading and unloading and the large amount of side space occupied by rotating arm structures for loading and unloading.

[0005] To achieve the above and other related objectives, the present invention provides a dual-worktable bidirectional translational exchange device, including a processing area and a loading / unloading area, and two worktables that cooperate to move and exchange between the processing area and the loading / unloading area; the processing area is equipped with a shifting mechanism, and the loading / unloading area is equipped with a bidirectional exchange station; the processing area is equipped with a first exchange point P71 and a second exchange point P72, and the loading / unloading area is equipped with a third exchange point P73 and a fourth exchange point P74; the shifting mechanism cooperates with the bidirectional exchange station to drive the two worktables to move and exchange between the first exchange point P71, the second exchange point P72, the third exchange point P73, and the fourth exchange point P74; the shifting mechanism is equipped with a sliding mechanism, the sliding mechanism including a sliding body, and a longitudinal linear actuator and a first X-axis linear actuator at the upper end of the sliding body; the bidirectional exchange station includes: a simultaneous position The support frame at the third switching point P73 and the fourth switching point P74 is equipped with a first lifting platform assembly and a second lifting platform assembly; two sets of X-axis pulley assemblies are mounted on the upper end of the support frame and located at the third switching point P73 and the fourth switching point P74 respectively; two sets of Y-axis pulley assemblies and two sets of second X-axis linear actuators are mounted on the upper ends of the second lifting platform assembly and the first lifting platform assembly and located at the third switching point P73 and the fourth switching point P74 respectively; a second linear actuator is mounted above the first lifting platform assembly and the second lifting platform assembly and located between the two sets of Y-axis pulley assemblies, and the movable end of the second linear actuator is provided with a transversely distributed U-shaped hanging groove. The second linear actuator passes through the third switching point P73 and the fourth switching point P74; the worktable is movably fitted on one of the sets of X-axis pulley assemblies.

[0006] In one embodiment of the present invention, the first X-axis linear actuator includes, from left to right, the following: a CNC moving slide, wherein input buffers and input limiters are respectively provided on the front and rear sides of the CNC moving slide; a worktable secondary input linear actuator, wherein the worktable secondary input linear actuator is mounted on the movable end of the longitudinal linear actuator, and an input connection block is provided on the output end of the worktable secondary input linear actuator; and a worktable output linear actuator, wherein an output connection block is provided on the output end of the worktable output linear actuator.

[0007] In one embodiment of the present invention, the second X-axis linear actuator includes: two sets of input linear actuators, the two sets of input linear actuators being respectively located in the right region of the third switching point P73 and the fourth switching point P74, and the output end of the input linear actuators being provided with input contacts; two sets of secondary output linear actuators, the two sets of secondary output linear actuators being respectively located in the left region of the third switching point P73 and the fourth switching point P74, and the output end of the secondary output linear actuators being provided with output contacts; the lower end of the secondary output linear actuators is provided with a Y-axis slide, and the front and rear sides of the input linear actuators are respectively provided with output buffers and output limiters.

[0008] In one embodiment of the present invention, the lower end of the worktable is provided with a pair of parallel transverse guide rails and a pair of parallel longitudinal guide rails, with the pair of parallel longitudinal guide rails distributed between the two transverse guide rails; the end of the worktable near the loading and unloading area is provided with a transverse conveying hook, which can be detachably fastened to the output connecting block; the lower end of the worktable is provided with a transversely distributed T-shaped hanging plate, which is lifted by the first lifting platform assembly and the second lifting platform assembly to make the U-shaped hanging groove engage with the T-shaped hanging plate; two sets of Y-axis pulley assemblies, which are slidably connected to the upper ends of the first lifting platform assembly and the second lifting platform assembly respectively, along the pair of longitudinal guide rails at the bottom of the worktable, drag the worktable between the third switching point P73 and the fourth switching point P74 for displacement and exchange; the worktable is movably engaged with the two sets of Y-axis pulley assemblies; the lower end of the worktable is provided with an input baffle, an output baffle and multiple positioning sleeves, with positioning cavities in the positioning sleeves; the input connecting block and the input baffle are detachably engaged, and the secondary output linear actuator contact is engaged with the output baffle.

[0009] In one embodiment of the present invention, the upper end of the slide body is provided with two pulley assemblies and two sets of lifting assemblies, the output ends of the two sets of lifting assemblies are respectively connected to the lower ends of the two pulley assemblies, and the worktable is movably fitted on the two pulley assemblies; the upper end of the slide body is also provided with multiple positioning bushings, and each of the multiple positioning bushings is provided with a locking device.

[0010] In one embodiment of the present invention, the shifting mechanism includes: a base that passes through both the first swapping point P71 and the second swapping point P72; a Y-axis linear module disposed on the base; a saddle disposed at the movable end of the Y-axis linear module; an X-axis linear module mounted on the saddle; and a slide mechanism disposed on the movable end of the X-axis linear module, with the worktable slidably fitted on the slide mechanism.

[0011] In one embodiment of the present invention, the support frame is provided with multiple sets of lifting and positioning components, each lifting and positioning component including a lifting bracket and a positioning block connected to the upper end of the lifting bracket.

[0012] This invention provides a bidirectional translational exchange method for dual worktables, including a control system and the aforementioned bidirectional translational exchange device for dual worktables. The method is characterized by controlling a single worktable to cyclically shift in both the horizontal and vertical directions via the control system, comprising the following steps: P1. After loading / unloading at the fourth exchange point P74 in the loading / unloading area, the worktable shifts to the first exchange point P71 in the processing area; P2. The worktable shifts from the first exchange point P71 in the processing area to the second exchange point P72 in the processing area for CNC machining; P3. After machining, the worktable shifts from the second exchange point P72 in the processing area to the third exchange point P73 in the loading / unloading area; P4. The worktable shifts from the third exchange point P73 in the loading / unloading area to the fourth exchange point P74 in the loading / unloading area to complete the independent cyclical displacement of a single worktable.

[0013] In one embodiment of the present invention, the working steps of controlling a single workbench to longitudinally move from the fourth swap point P74 to the third swap point P73 by the control system include: F1, the workbench is positioned at the fourth swap point P74; F2, the workbench rises at the fourth swap point P74; F3, the workbench is hooked at the fourth swap point P74; F4, the workbench is released from the fourth swap point P74; F5, the workbench is longitudinally moved to the third swap point P73; F6, the workbench is positioned at the third swap point P73; F7, the workbench is unhooked at the third swap point P73; F8, the workbench descends at the third swap point P73. The steps of controlling a single worktable to longitudinally move from the third swap point P73 to the fourth swap point P74 via the control system include: F9, the worktable is positioned at the third swap point P73; F10, the worktable rises at the third swap point P73; F11, the worktable is hooked at the third swap point P73; F12, the worktable is released from the third swap point P73; F13, the worktable longitudinally moves to the fourth swap point P74; F14, the worktable is positioned at the fourth swap point P74; F15, the worktable is unhooked at the fourth swap point P74; F16, the worktable descends at the fourth swap point P74.

[0014] In one embodiment of the present invention, the working steps of controlling the worktable in the exchange and cooperation between the slide mechanism and the bidirectional exchange station by the control system include: S1, the worktable is released and lowered to release the lock; S2, the worktable is raised; S3, the worktable output is disengaged from the slide mechanism; S4, the worktable output is braked; S5, the worktable output hooks up for the second time; S6, the worktable outputs for the second time; S7, the worktable output is buffered; S8, the worktable output is limited; S9, the worktable is positioned; S10, the worktable output hooks up for the second time; S11, the worktable is released from positioning; S12, the worktable input is disengaged from the bidirectional exchange station; S13, the worktable input is braked; S14, the worktable input hooks up for the second time; S15, the worktable inputs for the second time; S16, the worktable input is buffered; S17, the worktable input is limited; S18, the worktable lowers, positions, and locks up; S19, the worktable input hooks up for the second time.

[0015] This invention provides a dual-table bidirectional translational exchange machining center, including the aforementioned dual-table bidirectional translational exchange device, comprising a column mounted above one end of the Y-axis linear module in the machining area where the drive end is located; a Z-axis linear module is provided at the front end of the column, the Z-axis linear module, the Y-axis linear module, and the X-axis linear module cooperate to form an XYZ three-axis spatial displacement mechanism; a spindle drive box is provided on the movable end of the Z-axis linear module, and the spindle drive box contains a spindle machining system; a tool magazine system is installed on the side end of the column.

[0016] In one embodiment of the present invention, the spindle machining system includes at least a spindle motor, a drive spindle connected to the output end of the spindle motor, and a spindle transmission mechanism. A machining tool is mounted on the lower end of the drive spindle. The tool magazine system includes a tool disc with a plurality of tool storage positions equidistantly arranged around its edge. An automatic tool changer is mounted on one end of the tool disc near the spindle machining system for mounting and dismounting machining tools from the spindle machining system.

[0017] In one embodiment of the present invention, the spindle machining system, tool magazine system, Z-axis linear module, and spindle transmission box are provided in one or more sets.

[0018] As described above, the dual-worktable bidirectional translational exchange device, exchange method, and machining center of the present invention have the following beneficial effects: 1. By setting a first exchange point P71 and a second exchange point P72 in the processing area and a third exchange point P73 and a fourth exchange point P74 in the loading and unloading area, and cooperating with the bidirectional shifting function of the shifting mechanism, the sliding mechanism, and the bidirectional exchange station, the present invention can enable two worktables to circulate independently in the processing area and the loading and unloading area simultaneously. When one worktable is processing in the processing area, the other worktable can be moved from the third exchange point P73 to the fourth exchange point P74 for loading and unloading through the bidirectional exchange station, realizing parallel processing and loading and unloading, and greatly improving processing efficiency; at the same time, the present invention can unify the loading and unloading positions to the front end of the bidirectional exchange station, improving the convenience of loading and unloading.

[0019] 2. The slide mechanism of the present invention adopts a nested fit between multiple sets of positioning bushings and the worktable positioning sleeve, combined with a lifting and locking device, to achieve multi-point positioning and reliable locking of the worktable; the first and second X-axis linear actuators are equipped with buffers and limiters, which can effectively buffer the impact of movement, limit the movement limit position, and avoid positioning deviation; the lower end of the worktable is provided with transverse and longitudinal bidirectional guide rails, which form a rolling fit with the pulley assembly of the exchange mechanism, reducing frictional resistance, reducing component wear, extending the service life of the device, and improving the smoothness of movement.

[0020] 3. This invention adopts a fully horizontal switching structure, abandoning the traditional rotating arm design. There is no side space occupation during the switching process, and operators can approach the equipment without obstacles and avoid collisions with surrounding equipment, which significantly improves operational safety. The shifting mechanism and the bidirectional switching station can be mirrored to adapt to the spatial layout requirements of different workshops and improve space utilization.

[0021] 4. The present invention supports the clockwise and counterclockwise bidirectional cyclic displacement of the worktable through the control system. The third or fourth switching point can be selected as the loading and unloading station, which can be flexibly adapted to manual loading and unloading or automated equipment operation, and has strong versatility. The two worktables cycle independently without interfering with each other. Even if one worktable fails, the other worktable can still operate normally, which improves the fault tolerance rate and operation continuity of the device.

[0022] 5. The spindle machining system used in this invention supports single, double, or multiple configurations, and can flexibly expand machining capabilities according to machining needs, adapting to the machining of parts with different complexities, without the need to replace the entire equipment, thus reducing equipment investment costs. Attached Figure Description

[0023] Figure 1 shows a three-dimensional structural schematic diagram of the present invention.

[0024] Figure 2 shows a flowchart of steps P1-P4 in this invention.

[0025] Figure 3 shows a schematic diagram of the workbench structure in this invention.

[0026] Figure 4 shows a schematic diagram of the cooperation between the worktable and the slide mechanism in this invention.

[0027] Figure 5 shows a schematic diagram of the disassembled structure of the worktable and slide mechanism in this invention.

[0028] Figure 6 shows a three-dimensional structural diagram of the slide mechanism in this invention.

[0029] Figure 7 shows an enlarged structural schematic diagram of the CNC moving slide in this invention.

[0030] Figure 8 shows a schematic diagram of the cooperation between the workbench and the bidirectional exchange station in this invention.

[0031] Figure 9 shows a three-dimensional structural diagram of the separation of the workbench and the bidirectional exchange station in this invention.

[0032] Figure 10 shows a top view of the bidirectional switching station in this invention.

[0033] Figure 11 shows a flowchart of steps F1-F8 in this invention.

[0034] Figure 12 shows a flowchart of steps F9-F16 in this invention.

[0035] Figure 13 shows a schematic diagram of the structure in which the workbench is locked at the third swapping point P73 in this invention.

[0036] Figure 14 shows a schematic diagram of the structure in this invention where the worktable is hooked and connected to the second linear actuator at the third switching point P73.

[0037] Figure 15 shows a schematic diagram of the structure in which the workbench moves from the third swap point P73 to the third swap point P74 in this invention.

[0038] Figure 16 shows a schematic diagram of the structure in which the workbench is locked at the fourth swapping point P74 in this invention.

[0039] Figures 17-35 show the flowcharts of S1-S19 in this invention.

[0040] Figure 36 shows a schematic diagram of the structure of the single-spindle, dual-table, bidirectional translational exchange machining center of the present invention.

[0041] Figure 37 shows a schematic diagram of the structure of the dual-spindle, dual-table, bidirectional translational exchange machining center of the present invention.

[0042] Figure 38 shows a schematic diagram of the structure of the three-spindle, dual-table, bidirectional translational exchange machining center of the present invention.

[0043] Component Labeling Description: Base 1; Saddle 2; Y-axis Linear Module 3; Column 4; X-axis Linear Module 5; Linear Guide 6; Slider 7; Drive Motor 8; Lead Screw 9; Z-axis Linear Module 206; Spindle Transmission Box 207; Spindle Machining System 208; Tool Head 101; Tool Changer 102; Machining Area 10; Loading / Unloading Area 11; Shifting Mechanism 20; Slide Mechanism 30; Pulley Assembly 31; Base Plate 311; Pulley Seat 312; Pulley 313; Slide Body 33; Positioning Bushing 34; CNC Moving Slide Table 356; Slide Body 3561; Linear Actuator 3562; First Connecting Plate 3563; Moving Platform 3564; Worktable Output Linear Actuator 351; Output Connecting Block 3511; Worktable Secondary Input Linear Actuator 352; Input Connecting Block 3521; Input Buffer 354; Input Limiter 355; Lifting Assembly 3 6; Longitudinal linear actuator 37; Locking device 38; Worktable 50; Transverse guide rail 51; Longitudinal guide rail 52; Transverse conveying hook 53; Positioning sleeve 54; T-shaped hanging plate 55; Input baffle 553; Output baffle 552; Bidirectional exchange station 70; Support frame 711; First lifting platform assembly 712; X-axis pulley assembly 713; Y-axis pulley assembly 714; Second linear actuator 715; U-shaped hanging groove 7151; Lifting and positioning assembly 716; Lifting bracket 7161; Positioning bushing 7162; Second lifting platform assembly 717; Input linear actuator 751; Input contact 7511; Secondary output linear actuator 752; Output contact 7521; Y-axis slide 753; Output buffer 754; Output limiter 755; First switching point P71; Second switching point P72; Third switching point P73; Fourth switching point P74. Detailed Implementation

[0044] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0045] Please refer to Figures 1 through 38. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of the invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness or purpose of the invention, should fall within the scope of the disclosed technical content. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention.

[0046] Example 1, please refer to Figures 1-2. This example provides a dual-workbench bidirectional translational exchange device, including a processing area 10 and a loading / unloading area 11, and two workbenches 50 that cooperate to move and exchange between the processing area 10 and the loading / unloading area 11. The processing area 10 is provided with a shifting mechanism 20, and the loading / unloading area 11 is provided with a bidirectional exchange station 70. The processing area 10 is provided with a first exchange point P71 and a second exchange point P72, and the loading / unloading area 11 is provided with a third exchange point P73 and a fourth exchange point P74. The shifting mechanism 20 and the bidirectional exchange station 70 cooperate to drive the two workbenches 50 to move and exchange between the first exchange point P71, the second exchange point P72, the third exchange point P73, and the fourth exchange point P74. It should be noted that the bidirectional exchange station 70 can be mirrored relative to the shifting mechanism 20 according to the actual construction. This invention employs two worktables 50 that independently cycle simultaneously in the processing area 10 and the loading / unloading area 11. While one worktable 50 is processing in the processing area 10, the other worktable 50 can be moved from the third exchange point P73 to the fourth exchange point P74 for loading / unloading via a bidirectional exchange station 70. After the worktable 50 in the loading / unloading area 11 completes its loading / unloading, it is moved back from the fourth exchange point P74 to the third exchange point P73 via the bidirectional exchange station 70, waiting to complete processing with the other worktable 50 in the processing area 10. The two worktables 50 in the processing area 10 and the loading / unloading area 11 are then automatically exchanged through the control system, achieving parallel processing and loading / unloading, greatly improving processing efficiency. At the same time, this invention can unify the loading / unloading positions to the front of the bidirectional exchange station, improving the convenience of loading / unloading.

[0047] The shifting mechanism 20 includes a base 1 that passes through the first swapping point P71 and the second swapping point P72, a Y-axis linear module 3 on the base 1, a saddle 2 on the movable end of the Y-axis linear module 3, an X-axis linear module 5 on the saddle 2, and a slide mechanism 30 on the movable end of the X-axis linear module 5. The worktable 50 is slidably fitted on the slide mechanism 30. The Y-axis linear module 3 and the X-axis linear module 5 are identical linear modules, each including a linear guide rail 6, a slider 7 slidably engaged on the upper end of the linear guide rail 6, a drive motor 8 located at one end of the linear guide rail 6, and a lead screw 9 connected to the output end of the drive motor 8 and meshing with the slider 7. The drive motor 8 drives the lead screw 9 to rotate, causing the slider 7 meshing with the lead screw 9 to achieve linear displacement along the linear guide rail 6. The Y-axis linear module 3 can achieve longitudinal translation in the processing area 10, and the X-axis linear module 5 can achieve lateral translation in the processing area 10. The shifting mechanism 20 uses the cooperation of two vertically intersecting linear modules to shift between the first exchange point P71 and the second exchange point P72, facilitating the adjustment of the processing position and exchange position of the worktable.

[0048] Please refer to Figures 3 and 4. The lower end of the worktable 50 is provided with a pair of parallel transverse guide rails 51 and a pair of parallel longitudinal guide rails 52, with the pair of parallel longitudinal guide rails 52 distributed between the two transverse guide rails 51. Both the transverse guide rails 51 and the longitudinal guide rails 52 are T-shaped convex rails. By setting up bidirectional transverse and longitudinal guide rails, this invention enables displacement through a bidirectional guide rail contact displacement mechanism during the movement and exchange of the worktable 50, reducing frictional loss and resistance to the worktable itself during movement and exchange, and improving the bidirectional translational exchange effect of the worktable. The workbench 50 is provided with a transverse conveying hook 53 at one end near the loading / unloading area 11. The transverse conveying hook 53 can be detachably fastened to the output connecting block 3511. The lower end of the workbench 50 is provided with transversely distributed T-shaped hanging plates 55. The lower end of the workbench 50 is also provided with a positioning sleeve 54, an input baffle 553, and an output baffle 552. The positioning sleeve 54 has a positioning cavity. The height of the positioning sleeve 54 is greater than the height of the transverse guide rail 51 and the longitudinal guide rail 52. The workbench 50 relies on lifting to achieve translation. When the workbench 50 moves to the processing position and descends, the positioning sleeve 54 nests the positioning shaft sleeve 34 to achieve positioning and locking of the workbench 50. By setting multiple positioning sleeves 54, the present invention can achieve multi-point positioning at the lower end of the workbench, ensuring the reliability of the workbench 50 during the processing, solving the processing error problem caused by vibration offset, and improving the processing effect. The input connecting block 3521 and the input baffle 553 can be detachably engaged, and the secondary output linear actuator contact 7521 and the output baffle 552 are engaged.

[0049] Please refer to Figures 5-7. The shifting mechanism 20 is provided with a sliding mechanism 30. The sliding mechanism 30 includes a sliding body 33. The upper end of the sliding body 33 is provided with a longitudinal linear actuator 37 and a first X-axis linear actuator component. The upper end of the sliding body 33 is provided with a pulley assembly 31 and a lifting assembly 36. The output end of the lifting assembly 36 is connected to the lower end of the pulley assembly 31. The pulley assembly 31 is provided with one set or two sets. The worktable 50 is movably fitted on two pulley assemblies 31. The lifting assembly 36 is provided with two sets or two sets. The pulley assembly 31 includes a base plate 311 distributed laterally along the sliding body 33. The base plate 311 is equipped with a plurality of pulley seats 312. Each pulley seat 312 is equipped with a pulley 313 through a rotating connector. The upper end of the slide body 33 is also provided with a positioning bushing 34, which is in conical engagement with the positioning sleeve 54. The upper end of the positioning bushing 34 is provided with a locking device 38, which includes a locking cylinder and other locking structures. The positioning bushing 34 and the locking device 38 are used to lock the worktable 50 when the lifting assembly 36 drives the pulley assembly 31 and the worktable 50 to rise or fall. Specifically, the lower end of the worktable 50 is provided with a positioning sleeve 54 with a positioning cavity. After the positioning cavity of the positioning sleeve 54 and the positioning bushing 34 form a conical engagement, the locking device 38 on the positioning bushing 34 locks the worktable 50. The positioning cavity of the positioning sleeve 54 is locked to the positioning bushing 34, thereby achieving the locking and unlocking of the worktable 50 and the slide mechanism 30. When the lifting assembly 36 drives the pulley assembly 31 and the worktable 50 to descend, the positioning bushing 34 and locking device 38 lock the worktable 50 by nesting the positioning sleeve 54. Multiple positioning bushings 34 and multiple locking devices 38 are provided, with each locking device 38 installed in one positioning bushing 34. Multiple positioning bushings 34 and locking devices 38 are evenly distributed on the upper end of the slide body 33 for multi-point positioning. The number of positioning sleeves 54 is the same as the number of positioning bushings 34, and their positions correspond. This invention uses a positioning bushing 34 to unlock the movement and positioning states of the worktable 50 in conjunction with the lifting assembly 36's lifting action. When the lifting assembly 36 lifts up, it enables the pulley assembly 31 to rise and quickly displace into contact with the worktable 50, avoiding displacement interference between the worktable 50 and the positioning bushing 34 and ensuring the normal movement of the worktable 50. When the lifting assembly 36 descends, it drives the pulley assembly 31 and the worktable 50 to descend, causing the positioning bushing 34 and locking device 38 on the slide body 33 to contact the worktable 50 and form a lock, ensuring the stability of the worktable 50 during the processing.

[0050] The first X-axis linear actuator assembly includes, from left to right, a CNC moving slide 356, a table secondary input linear actuator 352, and a table output linear actuator 351. The table secondary input linear actuator 352 is mounted on the longitudinal linear actuator 37. The CNC moving slide 356 includes a slide body 3561, a linear actuator 3562, a first connecting plate 3563, and a moving platform 3564. The slide body 3561 is mounted on the end of the slide body 33 away from the bidirectional exchange station 70. The linear actuator 3562 is mounted on the slide body 3561. The first connecting plate 3563 is mounted on the movable end of the linear actuator 3562. The moving platform 3564 is mounted on the linear actuator 3562. The movable end of the 2 is connected to the first connecting plate 3563; the front and rear sides of the CNC moving slide 356 are respectively provided with an input buffer 354 and an input limiter 355; the output end of the worktable secondary input linear actuator 352 is provided with an input connecting block 3521; the output end of the worktable output linear actuator 351 is provided with an output connecting block 3511; when the worktable 50 needs to be moved from the bidirectional exchange station 70 into the processing area 10, a pair of transverse guide rails 51 at the bottom of the worktable 50 form a sliding fit with a set of pulley assemblies 31 on the slide mechanism 30 and a set of X-axis pulley assemblies 713 on the bidirectional exchange station 70, and the input linear actuator 751 on the bidirectional exchange station 70 pushes the worktable 50. The worktable 50 moves along the X-axis slide mechanism 30 on the X-axis pulley assembly 713 and is positioned on the same X-axis sliding guide line as the pulley assembly 31 of the slide mechanism 30. This pushes the worktable 50 to disengage from the X-axis pulley assembly 713 on the bidirectional exchange station 70. At this time, the worktable 50 moves onto the slide mechanism 30 and slides onto a set of pulley assemblies 31 on the slide mechanism 30. The worktable output linear actuator 351 is activated to brake the movement of the worktable 50 and prevent inertial slippage. Then, the longitudinal linear actuator 37 pushes the worktable secondary input linear actuator 352 to move along the Y-axis, causing the input connection block 3521 of the worktable secondary input linear actuator 352 to connect with the input baffle 553 of the worktable 50. A second input hook is formed; the input connecting block 3521 of the secondary input linear actuator 352 of the worktable and the input baffle 553 of the worktable 50 form a second input hook, and a pair of transverse guide rails 51 at the bottom of the worktable 50 and a set of pulley assemblies 31 corresponding to the transverse guide rails 51 on the slide mechanism 30 form a sliding engagement. At this time, the input connecting block 3521 of the secondary input linear actuator 352 of the worktable extends, pushing the worktable 50 to complete the secondary input movement on the slide mechanism 30; the input buffer 354 of the slide mechanism 30 contacts the worktable 50, slowing down the movement speed to avoid collision; the input limiter 355 of the slide mechanism 30 is triggered, limiting the movement range of the worktable 50 and stopping it precisely on the slide mechanism 30;The lifting component 36 of the slide mechanism 30 reverses its movement, causing the worktable 50 to descend. Multiple positioning sleeves 54 below the worktable 50 engage with corresponding positioning bushings 34 on the slide mechanism 30 via conical surfaces. Multiple locking devices 38 on the positioning bushings 34 lock and secure the multiple positioning sleeves 54 below the worktable 50. These locking devices 38 are inserted into the locking holes of the multiple positioning sleeves 54 at the bottom of the worktable 50 to achieve positioning and locking. After processing, the longitudinal linear actuator 37 pushes the secondary input linear actuator 352 of the worktable to move along the Y direction, causing the input connecting block 3521 of the secondary input linear actuator 352 to disengage from the input baffle 553 of the worktable 50 for a second output, completing the exchange process of the worktable 50 from the loading / unloading area 11 to the processing area 10.

[0051] This embodiment employs a linear actuator to provide linear drive. The rotation of the pulley assembly 31 drives the displacement of the worktable 50, improving the smoothness and speed of the worktable 50's sliding movement on the slide mechanism 30 and reducing frictional losses. By setting a positioning bushing 34 and a locking device 38, in conjunction with the lifting assembly 36's lifting action, contact can be made with the worktable 50 to form a lock, ensuring the stability of the worktable 50 during processing. This invention can greatly improve the efficiency, accuracy, and reliability of worktable 50 exchange. The slide mechanism 30 is applied in the shifting mechanism 20, and through the first X-axis linear actuator, it can extend and retract between the shifting mechanism 20 and the bidirectional exchange station 70 for exchange. No flipping is required during the exchange process, completely eliminating the occupancy of the rotating arm on the side space. Operators can access the equipment without obstruction, improving the safety and convenience of CNC machining operations.

[0052] Please refer to Figures 8-16. The bidirectional switching station 70 includes a support frame 711, in which a first lifting platform assembly 712 and a second lifting platform assembly 717 are installed. The upper end of the support frame 711 is provided with two sets of four X-axis pulley assemblies 713 and a second linear actuator 715. The second linear actuator 715 is simultaneously installed above the first lifting platform assembly 712 and the second lifting platform assembly 717 and passes between the third switching point P73 and the fourth switching point P74. Two sets of four Y-axis pulley assemblies 714 are provided on the left and right sides of the second linear actuator 715. Specifically, the first lifting platform assembly 712 is provided with two sets of Y-axis pulley assemblies 714, and the second lifting platform... The component 717 is provided with two sets of Y-axis pulley assemblies 714. The movable end of the second linear actuator 715 is provided with transversely distributed U-shaped hanging grooves 7151, which are engaged with T-shaped hanging plates 55. The second X-axis linear actuator is located on the upper end of the support frame 711. The support frame 711 is provided with multiple sets of lifting and positioning assemblies 716. The lifting and positioning assembly 716 includes multiple lifting brackets 7161 and multiple positioning blocks 7162 connected to the upper end of the lifting brackets 7161. The lifting and lowering movement of the multiple positioning blocks 7162 forms a conical positioning engagement with the multiple positioning sleeves 54 located at the lower end of the worktable 50, thereby fixing the position of the worktable 50 on the bidirectional exchange station 70. The bidirectional exchange station 70 is raised simultaneously via the first lifting platform assembly 712 and the second lifting platform assembly 717, which in turn raises the second linear actuator 715 and two sets of Y-axis pulley assemblies 714 connected to the first lifting platform assembly 712 and the second lifting platform assembly 717. The two sets of Y-axis pulley assemblies 714, in conjunction with a pair of longitudinal guide rails 52 at the bottom of the worktable 50, raise the worktable 50. At this time, the transverse guide rails 51 at the bottom of the worktable 50 disengage from the X-axis pulley assembly 713 on the bidirectional exchange station 70. The worktable 50 is raised to a height where all the connecting parts at the bottom of the worktable 50 are connected to the bidirectional exchange station. The second linear actuator 715, with its movable end driving the U-shaped hanging groove 7151 to move, engages with the T-shaped hanging plate 55 of the worktable 50 through the U-shaped hanging groove 7151. The worktable 50 is moved between the T-shaped hanging plate 55 of the worktable 50 and the two sets of Y-axis pulley assemblies 714 connected to the upper ends of the first lifting platform assembly 712 and the second lifting platform assembly 717, respectively. The worktable 50 is moved and exchanged between the third exchange point P73 and the fourth exchange point P74. The worktable 50 is movably engaged on the two sets of Y-axis pulley assemblies 714.The second X-axis linear actuator assembly includes two sets of input linear actuators 751 and two sets of secondary output linear actuators 752. The two sets of input linear actuators 751 are respectively located at the farthest point of the support frame 711 from the processing area 10, and each of the third switching point P73 and the fourth switching point P74 has a set of input linear actuators 751. The output end of the input linear actuators 751 is provided with an input contact 7511. The two sets of secondary output linear actuators 752 are respectively located at the closest point of the support frame 711 to the processing area 10, and each of the third switching point P73 and the fourth switching point P74 has a set of secondary output linear actuators 752. The output end of the secondary output linear actuators 752 is provided with an output contact 7521. A Y-axis slide table 753 is provided on one side of each of the two sets of secondary output linear actuators 752. Output buffers 754 and output limiters 755 are respectively provided on the front and rear sides of the two sets of input linear actuators 751.

[0053] The working process of the bidirectional exchange station 70 is as follows: When the worktable 50 needs to exchange between the third exchange point P73 and the fourth exchange point P74, the first lifting platform assembly 712 and the second lifting platform assembly 717 rise simultaneously, driving the second linear actuator 715 and the two sets of Y-axis pulley assemblies 714 to rise simultaneously. The two sets of Y-axis pulley assemblies 714 rotate and engage with a pair of longitudinal guide rails 52 at the bottom of the worktable 50, causing the worktable 50 to rise. At this time, the transverse guide rails 51 at the bottom of the worktable 50 disengage from the X-axis pulley assembly 713 on the bidirectional exchange station 70, and the worktable 50 rises to a height that is within the range of the worktable 50. All connecting parts at the bottom and all connecting parts at the top of the bidirectional exchange station 70 are designed to ensure that their displacement on the horizontal plane does not cause interference. The second linear actuator 715, connected to the first lifting platform assembly 712 and the second lifting platform assembly 717, is activated. Its movable end drives the U-shaped hanging groove 7151 to move and engage with the T-shaped hanging plate 55 of the worktable 50. The two sets of Y-axis pulley assemblies 714, which are connected to the top of the first lifting platform assembly 712 and the second lifting platform assembly 717 respectively, slide along a pair of longitudinal guide rails 52 at the bottom of the worktable 50, dragging the worktable 50 to move and exchange between the third exchange point P73 and the fourth exchange point P74. During the exchange process, the first lifting platform assembly 712 and the second lifting platform assembly 717 can be raised and lowered according to actual needs. The lifting bracket 7161 of the lifting positioning assembly 716 drives the positioning block 7162 to move. Through the lifting and lowering movement of multiple positioning blocks 7162, a conical positioning engagement is formed with multiple positioning sleeves 54 corresponding to the lower end of the worktable 50, thereby fixing the position of the worktable 50 on the bidirectional exchange station 70 and accurately positioning the lifting position to ensure the accuracy and stability of the worktable 50 exchange. When the worktable 50 needs to be moved from the processing area 10 to the loading and unloading area 11 to complete the exchange, multiple locking devices 38 on the slide mechanism 30 release the locking of the multiple positioning sleeves 54 corresponding to the lower end of the worktable 50; the lifting assembly 36 of the slide mechanism 30 moves forward, driving the worktable 50 to rise, and the multiple positioning sleeves 54 under the worktable 50 release the conical positioning engagement with the multiple positioning bushings 34 corresponding to the slide mechanism 30.The output connecting block 3511 on the worktable output linear actuator 351, located on the slide mechanism 30, engages with the transverse conveying hook 53 at the bottom of the worktable 50. A pair of transverse guide rails 51 at the bottom of the worktable 50 slide in conjunction with a set of pulley assemblies 31 on the slide mechanism 30 and a set of X-axis pulley assemblies 713 on the bidirectional exchange station 70. When the worktable output linear actuator 351 on the slide mechanism 30 is activated, the output connecting block 3511 extends and pushes the transverse conveying hook 53 at the bottom of the worktable 50, causing the worktable 50 to move along the X-axis of the pulley assembly 31 towards the bidirectional exchange station 70. The worktable 50 moves along the same X-axis sliding guide rail as the X-axis pulley assembly 713 on the bidirectional exchange station 70, disengaging the worktable 50 from the pulley assembly 31 on the slide mechanism 30. The worktable 50 is then moved onto the corresponding set of X-axis pulley assemblies 713 on the bidirectional exchange station 70, and a pair of transverse guide rails 51 at the bottom of the worktable 50 form a sliding engagement with the corresponding set of X-axis pulley assemblies 713 on the bidirectional exchange station 70. The input linear actuator 751 is activated to brake the movement of the worktable 50, preventing inertial slippage. Then, the Y-axis slide 753 pushes the secondary output linear actuator 752 to move along the Y-axis, and the secondary output linear actuator... The output contact 7521 on the secondary output linear actuator 752 forms a secondary output hook with the output baffle 552 on the worktable 50, and a pair of transverse guide rails 51 at the bottom of the worktable 50 slide in contact with a set of X-axis pulley assemblies 713 on the bidirectional exchange station 70 corresponding to the transverse guide rails 51. At this time, the output contact 7521 on the secondary output linear actuator 752 extends, pushing the worktable 50 to complete the secondary output movement into position on the bidirectional exchange station 70; the output buffer 754 on the bidirectional exchange station 70 contacts the worktable 50, slowing down the movement speed and avoiding collision; the output limiter 755 on the bidirectional exchange station 70 is triggered, limiting the movement range of the worktable 50 and stopping it precisely. On the bidirectional exchange station 70, multiple sets of lifting and positioning components 716 on the bidirectional exchange station 70 rise, driving multiple lifting brackets 7161 and multiple positioning blocks 7162 connected to the upper end of the lifting brackets 7161 to form a conical positioning fit with multiple positioning sleeves 54 located at the lower end of the worktable 50, thereby fixing the worktable 50 in the position of the bidirectional exchange station 70; the Y-axis slide 753 pushes the secondary output linear actuator 752 to move along the Y direction, so that the output contact 7521 on the secondary output linear actuator 752 forms an output disengagement with the output baffle 552 on the worktable 50; thus completing the movement output of the worktable 50 from the processing area 10 to the loading and unloading area 11;Two sets of input linear actuators 751 and two sets of secondary output linear actuators 752 work together. The input contacts 7511 of the input linear actuators 751 and the output contacts 7521 of the secondary output linear actuators 752 cooperate with corresponding structures on the worktable 50 to achieve precise docking and transfer of the worktable at the exchange point. The Y-axis slide 753 near the processing area 10 provides auxiliary support and guidance for the movement of the worktable. The output buffer 754 and the output limiter 755 respectively buffer and limit the movement of the worktable to prevent collisions or exceeding the specified range during the exchange process, ensuring the safety and reliability of the entire exchange process.

[0054] This invention, by setting up two sets of X-axis pulley assemblies 713 and two sets of rotatably connected Y-axis pulley assemblies 714, combined with the driving force provided by the second linear actuator 715, enables the worktable 50 to move bidirectionally between two exchange points P73 and P74, forming a U-shaped continuous translational path. This design supports the worktable 50 to enter and exit bidirectionally from either end of the two exchange points P73 and P74, unifying the loading and unloading positions to the front end of any exchange point in the bidirectional exchange station. This improves both the stability of the worktable 50's exchange and the convenience of its loading and unloading. Simultaneously, after completing loading and unloading, the worktable 50 can be quickly transferred to the machining center, effectively improving processing efficiency. This invention adopts a fully translational exchange structure, abandoning the traditional rotating arm design. There is no side space occupation during the exchange process, allowing operators unobstructed access to the equipment and avoiding collisions with surrounding equipment, significantly improving operational safety. The shifting mechanism and the bidirectional exchange station can be mirrored, adapting to the spatial layout requirements of different workshops and improving space utilization.

[0055] Example 2, please refer to Figures 2 and 11-16. This invention provides a bidirectional translational exchange method for dual worktables, including a control system and the bidirectional translational exchange device for dual worktables described in Example 1. This method controls a single worktable 50 to perform cyclic displacement in both horizontal and vertical directions through the control system. The working steps include the following steps: P1, after loading and unloading at the fourth exchange point P74 in the loading / unloading area 11, the worktable 50 moves to the first exchange point P71 in the processing area 10; P2, the worktable 50 moves from the first exchange point P71 in the processing area 10 to the second exchange point P72 in the processing area 10 for CNC machining; P3, after machining, the worktable 50 moves from the second exchange point P72 in the processing area 10 to the third exchange point P73 in the loading / unloading area 11; P4, the worktable 50 moves from the third exchange point P73 in the loading / unloading area 11 to the fourth exchange point P74 in the loading / unloading area 11 to complete the independent cyclic displacement of a single worktable.

[0056] Based on the working principle of clockwise and counterclockwise cyclic displacement of a single worktable 50 using steps P1-P4 or P4-P1, the control system enables two identical worktables to work simultaneously, including the following steps: one worktable 50 with the workpiece installed enters the processing area 10 and begins to move; the other worktable 50 freely switches between two positions in the loading / unloading area 11: the fourth switching point P74 and the third switching point P73. This ensures that the loading / unloading positions of the two worktables 50 are unified. The worktable 50 that moves out of the bidirectional exchange station 70 then moves to the fourth switching point P74 in the loading / unloading area 11. The manual or automated loading / unloading device begins loading / unloading materials at the front end of the workbench 50 on the fourth exchange point P74 of the bidirectional exchange station 70. The removed workbench 50 then interchanges with the workbench 50 at the third exchange point P73 in the loading / unloading area 11 via the third exchange point P73 to the fourth exchange point P74. The manual or automated loading / unloading device then begins loading / unloading materials at the front end of the workbench 50 on the fourth exchange point P74, thus unifying the loading / unloading positions of the two workbench 50s. The two workbench 50s can be moved to either the third exchange point P73 or the fourth exchange point P74 to complete the loading / unloading process.

[0057] Using the fourth exchange point P74 as the loading and unloading station, the control system controls the cyclical exchange steps of the two worktables 50, including: loading and unloading worktables 50 on the fourth exchange point P74; the worktable 50 with the workpiece installed enters the first exchange point P71 of the processing area 10 and begins dynamic movement; simultaneously, the other worktable 50 located in the loading and unloading area 11 moves from the third exchange point P73 to the fourth exchange point P74; a manual or automated loading and unloading device begins loading and unloading at the front end of the worktable 50 on the fourth exchange point P74; at this time, one worktable 50 is processing inside the machine, and the other worktable 50 is moving longitudinally outside the machine for loading and unloading; the processed worktable 50 moves out to the third exchange point P73, and the other worktable 50 moves from the fourth exchange point P74 to the exchange point P71; then the worktable 50 located at the third exchange point P73 moves to the fourth exchange point P74 for loading and unloading.

[0058] Please refer to Figures 11-16. The working steps of controlling a single worktable 50 to move longitudinally from the fourth switching point P74 to the third switching point P73 by the control system include: F1, the worktable 50 is positioned at the fourth switching point P74: the fourth switching point P74 includes multiple sets of lifting and positioning components 716, and the worktable 50 is positioned and fixed at the fourth switching point P74 by the lifting and lowering movement of the multiple sets of lifting and positioning components 716 and the positioning and fixing of the multiple sets of positioning sleeves 54 corresponding to the lower end of the worktable 50.

[0059] F2. The worktable 50 rises at the fourth switching point P74: The fourth switching point P74 and the third switching point P73 each include a pair of Y-axis pulley assemblies 714. The upper part of the Y-axis pulley assembly 714 forms a rotational contact with a pair of longitudinal guide rails 52 at the lower end of the worktable 50. The lower part of the Y-axis pulley assembly 714 is connected to the second lifting platform assembly 717. The first lifting platform assembly 712 and the second lifting platform assembly 717 are movably connected in the upper frame 711. The worktable 50 is raised by the lifting and lowering movement of the first lifting platform assembly 712 and the second lifting platform assembly 717 located at the fourth switching point P74 and the third switching point P73. At this time, the transverse guide rail 51 at the bottom of the worktable 50 disengages from the rotational contact with the X-axis pulley assembly 713 on the bidirectional exchange station 70. The height of the worktable 50 is such that the displacement of all connecting parts at the bottom of the worktable 50 and all connecting parts at the top of the bidirectional exchange station 70 on the horizontal plane does not cause interference.

[0060] F3. The worktable 50 is hooked at the fourth switching point P74: the U-shaped hanging groove 7151 is connected and fixed above the moving component of the second linear actuator 715. The first lifting platform assembly 712 and the second lifting platform assembly 717, which are simultaneously located at the fourth switching point P74 and the third switching point P73, are lifted to drive the second linear actuator 715 located between the first lifting platform assembly 712 and the second lifting platform assembly 717. The movable end U-shaped hanging groove 7151 connected to the second linear actuator 715 forms a hook engagement with the T-shaped hanging plate 55 at the bottom of the worktable 50.

[0061] F4. The fourth switching point P74 of the worktable 50 is released from positioning: The fourth switching point P74 includes multiple sets of lifting and positioning components 716. Through the lifting and lowering movement of the multiple sets of lifting and positioning components 716, the positioning cooperation of the worktable 50 at the fourth switching point P74 is released from positioning.

[0062] F5, the worktable 50 is longitudinally displaced to the third switching point P73: After completing F1-F4, the second linear actuator 715 drives the worktable 50, which is connected by a hook, to move the worktable 50 from the fourth switching point P74 to the third switching point P73 along the y-axis direction, in conjunction with the Y-axis pulley assembly 714 of the fourth switching point P74 and the third switching point P73.

[0063] F6. The third switching point P73 of the worktable 50: The third switching point P73 includes multiple sets of lifting and positioning components 716. Through the lifting and lowering movement of the multiple sets of lifting and positioning components 716 and the positioning and fixing of the multiple sets of positioning sleeves 54 corresponding to the lower end of the worktable 50, the worktable 50 is positioned and fixed at the third switching point P73.

[0064] F7. The worktable 50 is disengaged at the third switching point P73: The U-shaped hanging groove 7151 is connected and fixed above the moving component of the second linear actuator 715. By simultaneously lowering and moving the first lifting platform assembly 712 and the second lifting platform assembly 717, which are simultaneously located at the fourth switching point P74 and the third switching point P73, the second linear actuator 715 and the movable end U-shaped hanging groove 7151 connected to the second linear actuator 715 are hooked and disengaged from the T-shaped hanging plate 55 of the worktable 50.

[0065] F8. The worktable 50 descends at the third switching point P73: The fourth switching point P74 and the third switching point P73 each include a pair of Y-axis pulley assemblies 714. The upper part of the Y-axis pulley assembly 714 forms a rotational contact with a pair of longitudinal guide rails 52 at the lower end of the worktable 50. The lower part of the Y-axis pulley assembly 714 is connected to the second lifting platform assembly 717. The first lifting platform assembly 712 and the second lifting platform assembly 717 are movably connected in the upper frame 711. This is achieved by simultaneously setting positions at the fourth switching point P74 and the third switching point. The lifting and lowering of the worktable 50 is achieved by the lifting and lowering movements of the first lifting platform assembly 712 and the second lifting platform assembly 717 of P73. Specifically, the worktable 50 is lowered by two sets of Y-axis pulley assemblies 714 in conjunction with a pair of longitudinal guide rails 52 at the bottom of the worktable 50. After the worktable 50 is lowered until the transverse guide rail 51 at the bottom of the worktable 50 makes contact with the X-axis pulley assembly 713 on the bidirectional exchange station 70, the lifting and lowering component Y-axis pulley assembly 714 disengages from the longitudinal guide rail 52 at the lower end of the worktable 50.

[0066] Please refer to Figures 11-16. The working steps of controlling the worktable 50 to move longitudinally from the third switching point P73 to the fourth switching point P74 by the control system include: F9, the worktable 50 is positioned at the third switching point P73: the third switching point P73 contains multiple sets of lifting and positioning components 716. Through the lifting and lowering movement of the multiple sets of lifting and positioning components 716 and the positioning and fixing of the multiple sets of positioning sleeves 54 corresponding to the lower end of the worktable 50, the positioning and fixing of the worktable 50 at the third switching point P73 is realized.

[0067] F10, the worktable 50 rises at the third switching point P73: the fourth switching point P74 and the third switching point P73 each include a pair of Y-axis pulley assemblies 714. The upper part of the Y-axis pulley assembly 714 forms a rotational contact with a pair of longitudinal guide rails 52 at the lower end of the worktable 50. The lower part of the Y-axis pulley assembly 714 is connected to the second lifting platform assembly 717. The first lifting platform assembly 712 and the second lifting platform assembly 717 are movably connected in the upper frame 711. The worktable 50 is raised by the lifting and lowering movement of the first lifting platform assembly 712 and the second lifting platform assembly 717 located at the fourth switching point P74 and the third switching point P73. At this time, the transverse guide rail 51 at the bottom of the worktable 50 disengages from the rotational contact with the X-axis pulley assembly 713 on the bidirectional exchange station 70. The height of the worktable 50 is such that the displacement of all connecting parts at the bottom of the worktable 50 and all connecting parts at the top of the bidirectional exchange station 70 on the horizontal plane does not cause interference.

[0068] F11. The worktable 50 is hooked at the third switching point P73: the U-shaped hanging groove 7151 is connected and fixed above the moving component of the second linear actuator 715. By simultaneously raising and moving the first lifting platform assembly 712 and the second lifting platform assembly 717 located at the fourth switching point P74 and the third switching point P73, the second linear actuator 715 and the movable end U-shaped hanging groove 7151 connected to the second linear actuator 715 are hooked and connected to the T-shaped hanging plate 55 of the worktable 50.

[0069] F12. The worktable 50 releases the third switching point P73 positioning. The third switching point P73 includes multiple sets of lifting and positioning components 716. Through the lifting and lowering movement of the multiple sets of lifting and positioning components 716 and the positioning cooperation of the multiple sets of positioning sleeves 54 corresponding to the lower end of the worktable 50, the positioning cooperation of the worktable 50 at the third switching point P73 is released.

[0070] F13, the worktable 50 is longitudinally moved to the fourth switching point P74: After completing F9-F12, the worktable 50 is connected to the hook by the second linear actuator 715. With the Y-axis pulley assembly 714 included in the fourth switching point P74 and the third switching point P73, the worktable 50 is moved from the third switching point P73 to the fourth switching point P74 along the Y-axis direction.

[0071] F14, Fourth repositioning point P74 of worktable 50: The fourth repositioning point P74 includes multiple sets of lifting and positioning components 716. Through the lifting and lowering movement of the multiple sets of lifting and positioning components 716 and the positioning and fixing of the multiple sets of positioning sleeves 54 corresponding to the lower end of the worktable 50, the positioning and fixing of the worktable 50 at the fourth repositioning point P74 is realized.

[0072] F15, the worktable 50 is disengaged at the fourth switching point P74: the U-shaped hanging groove 7151 is connected and fixed above the moving component of the second linear actuator 715. By simultaneously lowering and moving the first lifting platform assembly 712 and the second lifting platform assembly 717, which are simultaneously located at the fourth switching point P74 and the third switching point P73, the second linear actuator 715 and the movable end U-shaped hanging groove 7151 connected to the second linear actuator 715 are hooked and disengaged from the T-shaped hanging plate 55 of the worktable 50.

[0073] F16. The worktable 50 descends at the fourth switching point P74: The fourth switching point P74 and the third switching point P73 each include a pair of Y-axis pulley assemblies 714. The upper part of the Y-axis pulley assembly 714 forms a rotational contact with a pair of longitudinal guide rails 52 at the lower end of the worktable 50. The lower part of the Y-axis pulley assembly 714 is connected to the second lifting platform assembly 717. The first lifting platform assembly 712 and the second lifting platform assembly 717 are movably connected in the upper frame 711. This is achieved by simultaneously setting positions at the fourth switching point P74 and the third switching point. The lifting and lowering of the worktable 50 is achieved by the lifting and lowering movements of the first lifting platform assembly 712 and the second lifting platform assembly 717 of P73. Specifically, the worktable 50 is lowered by two sets of Y-axis pulley assemblies 714 in conjunction with a pair of longitudinal guide rails 52 at the bottom of the worktable 50. After the worktable 50 is lowered until the transverse guide rail 51 at the bottom of the worktable 50 makes contact with the X-axis pulley assembly 713 on the bidirectional exchange station 70, the lifting and lowering component Y-axis pulley assembly 714 disengages from the longitudinal guide rail 52 at the lower end of the worktable 50.

[0074] Please refer to Figures 17-35. The working process of controlling the worktable 50 to exchange and cooperate with the slide mechanism 30 and the bidirectional exchange station 70 by the control system includes: S1, the worktable 50 is released and lowered to release the lock: the multiple locking devices 38 on the slide mechanism 30 release the lock on the multiple positioning sleeves 54 located at the bottom of the worktable 50.

[0075] S2. Worktable 50 rises: A lifting component 36 is provided below the pulley assembly 31 of the slide mechanism 30. The lifting component 36 is connected to the slide body 33. The lifting component 36 drives the pulley assembly 31 to lift the transverse guide rail 51 to achieve the lifting action of the worktable 50.

[0076] S3. Disengagement of the worktable 50 from the slide mechanism 30: The output connecting block 3511 on the worktable output linear actuator 351 on the slide mechanism 30 engages with the transverse conveying hook 53 at the bottom of the worktable 50. A pair of transverse guide rails 51 at the bottom of the worktable 50 form a sliding engagement with a set of pulley assemblies 31 on the slide mechanism 30 and a set of X-axis pulley assemblies 713 on the bidirectional exchange station 70. The worktable output linear actuator 351 is activated, pushing the worktable 50 to move along the X-axis of the bidirectional exchange station 70 on the pulley assembly 31 and to be on the same X-axis sliding guide rail as the X-axis pulley assembly 713 on the bidirectional exchange station 70. This pushes the worktable 50 to disengage from the pulley assembly 31 on the slide mechanism 30. At this time, the worktable 50 moves to the bidirectional exchange station 70 and slides onto the set of X-axis pulley assemblies 713 on the bidirectional exchange station 70.

[0077] S4, the worktable 50 outputs a brake; the input linear actuator 751 is activated to brake the movement of the worktable 50 to prevent inertial slippage.

[0078] S5, the second output hook of the worktable 50; the Y-axis slide 753 pushes the secondary output linear actuator 752 to move along the Y direction, so that the output contact 7521 of the secondary output linear actuator 752 forms a hook with the output baffle 552 of the worktable 50.

[0079] S6. Second output of worktable 50: The output contact 7521 of the secondary output linear actuator 752 extends and pushes the output baffle 552 of worktable 50. On a set of X-axis pulley assemblies 713 in the bidirectional exchange station 70, a pair of transverse guide rails 51 at the bottom of worktable 50 and a set of X-axis pulley assemblies 713 on the corresponding transverse guide rails 51 on the bidirectional exchange station 70 are in sliding engagement, thus pushing worktable 50 to output position on the bidirectional exchange station 70.

[0080] S7, Workbench 50 output buffer; the output buffer 754 of the bidirectional exchange station 70 contacts the workbench 50 to slow down the movement speed and avoid hard collisions.

[0081] S8, Workbench 50 output limit; The output limiter 755 of the bidirectional exchange station 70 is triggered, limiting the movement range of the workbench 50 and stopping it precisely at the fourth exchange point P74.

[0082] S9. Positioning of workbench 50: The multiple sets of lifting and positioning components 716 of bidirectional exchange station 70 are activated. Through the lifting and lowering movement of multiple sets of positioning blocks 7162, they form a conical surface fit and fix with the multiple sets of positioning sleeves 54 corresponding to the lower end of workbench 50, thereby realizing the position locking of workbench 50 on bidirectional exchange station 70.

[0083] S10, the worktable 50 is disengaged for the second output; the Y-axis slide 753 pushes the secondary output linear actuator 752 to move along the Y direction, so that the output contact 7521 of the secondary output linear actuator 752 is disengaged from the output baffle 552 of the worktable 50 and released from locking.

[0084] S11, the workbench 50 is released from positioning; the multiple sets of lifting and positioning components 716 of the bidirectional exchange station 70 are activated, and the lifting and lowering of the multiple sets of positioning blocks 7162 forms a conical surface engagement with the multiple sets of positioning sleeves 54 corresponding to the lower end of the workbench 50 to release the position lock of the workbench 50 on the bidirectional exchange station 70.

[0085] S12. The worktable 50 is disengaged from the bidirectional exchange station 70. A pair of transverse guide rails 51 at the bottom of the worktable 50 form a sliding engagement with a set of pulley assemblies 31 on the slide mechanism 30 and a set of X-axis pulley assemblies 713 on the bidirectional exchange station 70. The input linear actuator 751 of the bidirectional exchange station 70 pushes the worktable 50 to move along the X-axis slide mechanism 30 on the X-axis pulley assembly 713 and to be on the same X-axis sliding guide rail line as the pulley assembly 31 of the slide mechanism 30. This pushes the worktable 50 to disengage from the X-axis pulley assembly 713 on the bidirectional exchange station 70. At this time, the worktable 50 moves onto the slide mechanism 30 and slides onto a set of pulley assemblies 31 on the slide mechanism 30.

[0086] S13, Worktable 50 input brake; Worktable output linear actuator 351 starts to brake the movement of worktable 50 to prevent inertial slippage.

[0087] S14, the second input hook of the worktable 50; the longitudinal linear actuator 37 pushes the worktable secondary input linear actuator 352 to move along the Y direction, so that the input connecting block 3521 of the worktable secondary input linear actuator 352 and the input baffle 553 of the worktable 50 form a second input hook.

[0088] S15, Second input to the worktable 50; The input connecting block 3521 of the linear actuator 352 of the worktable secondary input extends and pushes the input baffle 553 of the worktable 50. A pair of transverse guide rails 51 on the bottom of the worktable 50 and a pair of pulley assemblies 31 on the slide mechanism 30 are in sliding engagement with the corresponding transverse guide rails 51 on the slide mechanism 30, thus pushing the worktable 50 to input and move into position on the slide mechanism 30.

[0089] S16, Input buffer of worktable 50; Input buffer 354 of slide mechanism 30 contacts worktable 50 to slow down movement and avoid collision.

[0090] S17, Worktable 50 input limit; The input limiter 355 of the slide mechanism 30 is triggered, limiting the movement range of the worktable 50 and stopping it precisely on the slide mechanism 30.

[0091] S18, the worktable 50 descends and is positioned and locked; the lifting component 36 of the slide mechanism 30 moves in the opposite direction, driving the worktable 50 to descend. After the multiple positioning sleeves 54 under the worktable 50 and the corresponding multiple positioning bushings 34 on the slide mechanism 30 achieve conical surface positioning and engagement, the multiple locking devices 38 are inserted into the locking holes of the multiple positioning sleeves 54 at the bottom of the worktable 50 to achieve positioning and locking.

[0092] S19, the worktable 50 is decoupled from the second input; the longitudinal linear actuator 37 pushes the worktable secondary input linear actuator 352 to move along the Y direction, so that the input connection block 3521 of the worktable secondary input linear actuator 352 and the input baffle 553 of the worktable 50 form a second output decoupling, completing the exchange process.

[0093] Example 3, please refer to Figures 36-38. This invention provides a dual-worktable bidirectional translational exchange machining center, including the dual-worktable bidirectional translational exchange device described in Example 1; including a column 4, which is mounted above one end of the Y-axis linear module 3 in the machining area 10 where the drive end is located; a Z-axis linear module 206 is provided at the front end of the column 4, and the Z-axis linear module 206 cooperates with the Y-axis linear module 3 and the X-axis linear module 5 to form an XYZ three-axis spatial displacement mechanism; based on the translation and double exchange of the dual-worktable bidirectional translational exchange device, this invention, in conjunction with the translationally set XY-axis linear modules and the designed Z-axis linear module 206, can form a spatial displacement mechanism for the spindle machining system 208.

[0094] A spindle drive box 207 is provided on the movable end of the Z-axis linear module 206. The spindle drive box 207 houses a spindle machining system 208. The spindle machining system 208 includes at least a spindle motor, a drive spindle connected to the output end of the spindle motor, and a spindle transmission mechanism. A machining tool is mounted at the lower end of the drive spindle. After the spindle motor outputs high-speed rotation, the power direction is changed and the torque is multiplied through a bevel gear set via the spindle transmission mechanism. This drives the spindle to rotate the machining tool, performing precision machining on the workpiece under XYZ three-axis linkage. The spindle machining system 208 is a mature CNC technology and will not be elaborated further here. A tool magazine system is mounted on the side end of the column 4. The tool magazine system includes a tool disc 101, which can be a circular tool disc or an umbrella-shaped tool disc, etc. The edge of the tool disc 101 has several tool storage positions arranged in an equidistant ring. An automatic tool changer 102 is mounted on the end of the tool disc 101 near the spindle machining system 208 for loading and unloading machining tools from the spindle machining system 208. Specifically, this includes: 1) When the tool change command is issued, the small motor starts rotating forward, causing the worm shaft to rotate via the keyway coupling, which in turn drives the worm wheel screw to rotate. The inner hole of the tool holder body is machined with internal threads to engage with the worm wheel screw; the inner hole of the worm wheel screw and the outer circle of the tool holder's central shaft are a sliding mating platform. During indexing and tool change, the central shaft remains stationary, while the worm wheel screw rotates around the central shaft. When the worm wheel starts to rotate, the tool holder body is raised a certain distance; 2) When the tool holder body is raised to a certain distance, the end face teeth disengage. The indexing sleeve is connected to the worm wheel screw with a pin and rotates with the worm wheel screw. When the end face teeth are completely disengaged, the indexing sleeve rotates to the appropriate shifting angle. The spherical pin, under the action of spring force, enters the groove of the indexing sleeve, driving the tool holder body to rotate; 3) When the tool holder body rotates, it drives the brush holder to rotate. When it reaches the program-specified tool number, the positioning pin, under the action of spring force, enters the groove of the coarse positioning plate for coarse positioning. At the same time, the brushes are activated, causing the motor to reverse. Due to the limitations of coarse positioning, the tool holder body does not rotate, allowing it to fall vertically at that position. The end face teeth on the tool holder body and the tool holder base mesh to achieve precise positioning; 4) The motor continues to reverse, at which point the worm wheel stops rotating, and the worm shaft continues to rotate. As the clamping force increases, the torque continuously increases. When it reaches a certain value, the motor stops rotating under the control of the sensor. In conjunction with the automatic tool changer 102, the tool change time can be shortened and the tool change efficiency can be improved.

[0095] Example 4, please refer to Figure 36. This example provides a dual-table bidirectional translational exchange single-spindle machining center. The spindle machining system 208, tool magazine system, Z-axis linear module 206, and spindle transmission box 207 are all provided in one set. The rest are the same as in Example 3.

[0096] Example 5, please refer to Figure 37. This example provides a dual-worktable bidirectional translational exchange dual-spindle machining center. The spindle machining system 208, tool magazine system, Z-axis linear module 206, and spindle transmission box 207 are all provided in two sets. The rest is the same as in Example 3.

[0097] Example 6, please refer to Figure 38. This example provides a dual-table bidirectional translational exchange three-spindle machining center. The spindle machining system 208, tool magazine system, Z-axis linear module 206, and spindle transmission box 207 are all provided in three sets. The rest is the same as in Example 3.

[0098] The spindle machining system used in this invention supports single, double, or multiple configurations, and can flexibly expand machining capabilities according to machining needs, adapting to the machining of parts with different complexities, without the need to replace the entire equipment, thus reducing equipment investment costs. In summary, this invention achieves complete parallel processing and loading / unloading, as well as unified loading / unloading positions, significantly improving processing efficiency through the four-point interchange layout of the processing area 10 and the loading / unloading area 11, the independent cycle design of the dual worktables, and the coordinated operation of the shifting mechanism 20 and the bidirectional exchange station 70. Furthermore, the nested cooperation of multiple sets of positioning bushings and positioning sleeves, the setting of buffer limiting devices, and the rolling cooperation of guide rails and pulley assemblies significantly improve the positioning accuracy of worktable exchange and processing, reduce component wear, and ensure operational stability. This invention adopts a full-translation exchange structure, abandoning the traditional rotary arm design, optimizing spatial layout, and improving operational safety and workshop space utilization. It supports bidirectional cycle displacement of the worktable and expansion of single / multi-spindle processing systems, adapting to various scenarios such as manual and automated loading / unloading, and possesses strong versatility. Simultaneously, the modular design of each mechanism reduces assembly and maintenance difficulty, effectively reducing operating costs. Overall, it overcomes many shortcomings of existing technologies and has extremely high industrial application value. Therefore, this invention effectively overcomes various shortcomings of existing technologies and has high industrial utilization value.

[0099] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A dual-worktable bidirectional translational exchange device, comprising a processing area (10) and a loading / unloading area (11), and two worktables (50) that cooperate to move and exchange between the processing area (10) and the loading / unloading area (11); the processing area (10) is provided with a shifting mechanism (20), and the loading / unloading area (11) is provided with a bidirectional exchange station (70); the processing area (10) is provided with a first exchange point (P71) and a second exchange point (P72), and the loading / unloading area (11) is provided with a third exchange point (P73) and a fourth exchange point (P74); the shifting mechanism (20) cooperates with the bidirectional exchange station (70) to drive the two worktables (50) to move and exchange between the first exchange point (P71), the second exchange point (P72), the third exchange point (P73), and the fourth exchange point (P74); characterized in that: The shifting mechanism (20) is provided with a sliding mechanism (30), the sliding mechanism (30) includes a sliding body (33), and the upper end of the sliding body (33) is provided with a longitudinal linear actuator (37) and a first X-axis linear actuator assembly; the bidirectional exchange station (70) includes: a support frame (711) located at both the third exchange point (P73) and the fourth exchange point (P74), the support frame (711) is equipped with a first lifting platform assembly (712) and a second lifting platform assembly (717); two sets of X-axis pulley assemblies (713) mounted on the upper end of the support frame (711) and located at the third exchange point (P73) and the fourth exchange point (P74) respectively; and the second lifting platform assembly (717) and the first lifting platform assembly (717) are mounted on the second lifting platform assembly (717) and the first lifting platform assembly (717). The lowering platform assembly (712) has two sets of Y-axis pulley assemblies (714) and two sets of second X-axis linear actuators located at the third switching point (P73) and the fourth switching point (P74) respectively. The first lifting platform assembly (712) and the second lifting platform assembly (717) are mounted on top of the first lifting platform assembly (712) and the second lifting platform assembly (717) and located between the two sets of Y-axis pulley assemblies (714). The movable end of the second linear actuator (715) is provided with a transversely distributed U-shaped hanging groove (7151). The second linear actuator (715) is simultaneously installed between the third switching point (P73) and the fourth switching point (P74). The worktable (50) is movably fitted on one of the sets of X-axis pulley assemblies (713).

2. The dual-worktable bidirectional translational exchange device according to claim 1, characterized in that, The first X-axis linear actuator includes, from left to right, the following components arranged sequentially: a CNC moving slide (356), with an input buffer (354) and an input limiter (355) respectively on the front and rear sides of the CNC moving slide (356); a worktable secondary input linear actuator (352), which is mounted on the movable end of the longitudinal linear actuator (37), and has an input connection block (3521) on its output end; and a worktable output linear actuator (351), which has an output connection block (3511) on its output end.

3. The dual-worktable bidirectional translational exchange device according to claim 2, characterized in that: The second X-axis linear actuator assembly includes: two sets of input linear actuators (751), which are respectively located in the right region of the third switching point (P73) and the fourth switching point (P74), and the output end of the input linear actuator (751) is provided with an input contact (7511); two sets of secondary output linear actuators (752), which are respectively located in the left region of the third switching point (P73) and the fourth switching point (P74), and the output end of the secondary output linear actuator (752) is provided with an output contact (7521); the lower end of the secondary output linear actuator (752) is provided with a Y-axis slide (753), and the front and rear sides of the input linear actuator (751) are respectively provided with an output buffer (754) and an output limiter (755).

4. The dual-worktable bidirectional translational exchange device according to claim 3, characterized in that: The lower end of the workbench (50) is provided with a pair of parallel transverse guide rails (51) and a pair of parallel longitudinal guide rails (52), with the pair of parallel longitudinal guide rails (52) distributed between the two transverse guide rails (51); the end of the workbench (50) near the loading and unloading area (11) is provided with a transverse conveying hook (53), which can be separably fastened to the output connecting block (3511); the lower end of the workbench (50) is provided with transversely distributed T-shaped hanging plates (55), which are raised by the first lifting platform assembly (712) and the second lifting platform assembly (717) to make the U-shaped hanging groove (7151) engage with the T-shaped hanging plate (55), along the bottom of the workbench (50) The longitudinal guide rail (52) is slidably connected to two sets of Y-axis pulley assemblies (714) on the upper ends of the first lifting platform assembly (712) and the second lifting platform assembly (717), respectively, which drag the worktable (50) between the third exchange point (P73) and the fourth exchange point (P74) for displacement and exchange; the worktable (50) is movably fitted on the two sets of Y-axis pulley assemblies (714); the lower end of the worktable (50) is provided with an input baffle (553), an output baffle (552) and multiple positioning sleeves (54), and the positioning sleeves (54) are provided with positioning cavities; the input connecting block (3521) is separably engaged with the input baffle (553), and the secondary output linear actuator contact (7521) is engaged with the output baffle (552).

5. The dual-worktable bidirectional translational exchange device according to claim 2, characterized in that: The upper end of the slide body (33) is provided with two pulley assemblies (31) and two sets of lifting assemblies (36). The output ends of the two sets of lifting assemblies (36) are respectively connected to the lower ends of the two pulley assemblies (31). The worktable (50) is movably fitted on the two pulley assemblies (31). The upper end of the slide body (33) is also provided with multiple positioning bushings (34), and the upper ends of the multiple positioning bushings (34) are all provided with locking devices (38).

6. The dual-worktable bidirectional translational exchange device according to claim 1, characterized in that: The shifting mechanism (20) includes: a base (1) that passes through the first swapping point (P71) and the second swapping point (P72); a Y-axis linear module (3) on the base (1); a saddle (2) on the movable end of the Y-axis linear module (3); an X-axis linear module (5) mounted on the saddle (2); and a slide mechanism (30) on the movable end of the X-axis linear module (5), with the worktable (50) slidingly fitted on the slide mechanism (30).

7. The dual-worktable bidirectional translational exchange device according to claim 1, characterized in that: The support frame (711) is provided with multiple sets of lifting and positioning components (716), and the lifting and positioning components (716) include a lifting bracket (7161) and a positioning block (7162) connected to the upper end of the lifting bracket (7161).

8. A method for bidirectional translational exchange of two worktables, comprising a control system, including the bidirectional translational exchange device for two worktables as described in any one of claims 1-7, characterized in that, The control system controls the single worktable (50) to perform cyclic displacement in both horizontal and vertical directions. The steps are as follows: P1, after loading and unloading at the fourth transfer point (P74) in the loading and unloading area (11), the worktable (50) moves to the first transfer point (P71) in the processing area (10); P2, the worktable (50) moves from the first transfer point (P71) in the processing area (10) to the second transfer point (P72) in the processing area (10) for CNC machining; P3, after machining, the worktable (50) moves from the second transfer point (P72) in the processing area (10) to the third transfer point (P73) in the loading and unloading area (11); P4, the worktable (50) moves from the third transfer point (P73) in the loading and unloading area (11) to the fourth transfer point (P74) in the loading and unloading area (11) to complete the independent cyclic displacement of the single worktable.

9. The bidirectional translational exchange method for dual worktables according to claim 8, characterized in that: The steps of controlling a single workbench (50) to longitudinally move from the fourth swap point (P74) to the third swap point (P73) by the control system include: F1, the workbench (50) is positioned at the fourth swap point (P74); F2, the workbench (50) rises at the fourth swap point (P74); F3, the workbench (50) is hooked at the fourth swap point (P74); F4, the workbench (50) is released from the fourth swap point (P74); F5, the workbench (50) is longitudinally moved to the third swap point (P73); F6, the workbench (50) is positioned at the third swap point (P73); F7, the workbench (50) is unhooked at the third swap point (P73); F8, the workbench (50) descends at the third swap point (P73); and the control system moves the workbench (50) from the fourth swap point (P74) to the third swap point (P73). The steps of the control system to control the longitudinal displacement of a single workbench (50) from the third swap point (P73) to the fourth swap point (P74) include: F9, the workbench (50) is positioned at the third swap point (P73); F10, the workbench (50) rises at the third swap point (P73); F11, the workbench (50) is hooked at the third swap point (P73); F12, the workbench (50) is released from the third swap point (P73); F13, the workbench (50) is longitudinally moved to the fourth swap point (P74); F14, the workbench (50) is positioned at the fourth swap point (P74); F15, the workbench (50) is unhooked at the fourth swap point (P74); F16, the workbench (50) descends at the fourth swap point (P74).

10. The bidirectional translational exchange method for dual worktables according to claim 8, characterized in that: The working steps of controlling the worktable (50) in the exchange and cooperation between the slide mechanism (30) and the bidirectional exchange station (70) by the control system include: S1, the worktable (50) is released and lowered to release the lock; S2, the worktable (50) is raised; S3, the worktable (50) outputs and disengages from the slide mechanism (30); S4, the worktable (50) outputs the brake; S5, the worktable (50) outputs the hook for the second time; S6, the worktable (50) outputs for the second time; S7, the worktable (50) outputs the buffer; S8, the worktable (50) outputs the limit; S9, the worktable (50)... S10, Workbench (50) is positioned; S11, Workbench (50) outputs second unhooking; S12, Workbench (50) releases positioning; S13, Workbench (50) inputs disconnect from bidirectional exchange station (70); S14, Workbench (50) inputs brake; S15, Workbench (50) inputs hook for the second time; S16, Workbench (50) inputs buffer; S17, Workbench (50) inputs limit; S18, Workbench (50) descends and locks; S19, Workbench (50) inputs second unhooking.

11. A dual-table bidirectional translational exchange machining center, comprising the dual-table bidirectional translational exchange device as described in any one of claims 1-7, characterized in that: The system includes a column (4), which is mounted above the drive end of the Y-axis linear module (3) in the processing area (10); a Z-axis linear module (206) is provided at the front end of the column (4), and the Z-axis linear module (206) cooperates with the Y-axis linear module (3) and the X-axis linear module (5) to form an XYZ three-axis spatial displacement mechanism; a spindle transmission box (207) is provided on the movable end of the Z-axis linear module (206), and a spindle processing system (208) is installed inside the spindle transmission box (207); a tool magazine system is installed on the side end of the column (4).

12. The dual-table bidirectional translational exchange machining center according to claim 11, characterized in that: The spindle machining system (208) includes at least a spindle motor, a drive spindle connected to the output end of the spindle motor, and a spindle transmission mechanism. A machining tool is mounted at the lower end of the drive spindle. The tool magazine system includes a tool disc (101), and the edge of the tool disc (101) is provided with several tool storage positions at equal intervals. An automatic tool changer (102) is mounted at one end of the tool disc (101) near the spindle machining system (208) for disassembling and assembling machining tools for the spindle machining system (208).

13. The dual-table bidirectional translational exchange machining center according to claim 12, characterized in that: The spindle machining system (208), tool magazine system, Z-axis linear module (206), and spindle transmission box (207) are provided in one or more sets.

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