A double-station worktable for CNC

Abstract

The application provides a double-station worktable for CNC, and particularly relates to the technical field of CNC machine tool auxiliary equipment, and comprises a CNC main body, an inner platform and a tool head unit, and further comprises a double-shaft switching mechanism arranged between the outer side of the CNC main body and the inner platform, wherein the double-station worktable for CNC; the double-shaft switching mechanism composed of an X-axis displacement component, a Y-axis displacement component and a sinking fastening component is arranged, so as to solve the defects of the existing technology, such as the jamming misplacement caused by the single guide rail alignment of the multi-station switching, the lack of special connection structure, the non-separation of the carrier and the guide rail during the processing, the vibration transmission affecting the precision, and the like, to realize the cooperative action of the X-direction bearing movement of the jig table, the Y-direction smooth connection and the locking of the processing position sinking, and the double-station switching does not need complex debugging, so that the equipment downtime is greatly reduced, and the processing precision and stability are ensured.

Description

Technical Field

[0001] This invention provides a dual-station CNC worktable, specifically relating to the field of CNC machine tool auxiliary equipment technology. Background Technology

[0002] CNC machine tools are core equipment in the field of machining. They carry workpieces on a built-in platform and use tool units to complete machining operations such as cutting. To improve machining efficiency, multi-station switching worktables have become an important auxiliary structure. Their core requirements are to simplify the station switching process, reduce equipment downtime, and ensure the stability of machining accuracy.

[0003] In the prior art, such as the multi-station CNC loading mechanism disclosed in patent CN220613191U, a fixed first heavy-duty guide rail is used in conjunction with a movable second heavy-duty guide rail, and the workpiece loading and unloading switching is realized through a fixture tray.

[0004] However, this feeding mechanism has obvious defects: it relies solely on the movement and alignment of heavy-duty guide rails to achieve connection, lacking a corresponding directional transition structure, which easily leads to jamming or misalignment during switching; at the same time, the fixture pallet is always in contact with the guide rail during processing, and the vibration of the guide rail is directly transmitted to the pallet, which not only affects the processing accuracy of the workpiece, but also affects the service life of the drive structure; in addition, the dual-station switching requires adjusting the position of the heavy-duty bracket, which is cumbersome to operate and makes it difficult to balance switching efficiency and processing stability, thus failing to meet the requirements of high-precision and high-efficiency processing. Summary of the Invention

[0005] In view of the deficiencies of the existing technology, the present invention provides a dual-station CNC worktable, which can effectively solve the related technical problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] This invention discloses a dual-station CNC worktable, including a CNC body, the CNC body having a built-in platform and a tool head unit, and also including a dual-axis exchange mechanism, which is disposed between the outside of the CNC body and the built-in platform, and is composed of an X-axis shifting component, a Y-axis shifting component and a settling and fastening component;

[0008] The X-axis transposition component is used to carry and drive the fixture table to move along the X-axis direction. The Y-axis shift component is used to realize the Y-axis connection and movement of the fixture table between the X-axis transposition component and the built-in platform. The settling and fastening component is set above the built-in platform and is used for settling separation and locking fixation after the fixture table moves to the processing station.

[0009] Preferably, the X-axis transposition assembly includes an external stand, twin T-rails, a T-slot slider, an L-shaped carrier plate, an X-axis support guide rail, and a fixture table.

[0010] The external support frame is fixedly installed on the outside of the CNC body. The two T-shaped rails are fixed to the external support frame in parallel. The L-shaped carrier plate is slidably installed on the T-shaped rails through the T-slot slider. There are two X-axis support rails and they are fixed on the top of the L-shaped carrier plate. The fixture table is placed horizontally on the top of the two X-axis support rails.

[0011] Preferably, two limiting plates are symmetrically fixed at the bottom of the fixture platform;

[0012] When the fixture is placed on top of the two X-axis support rails, the outer walls of the two limiting plates are respectively attached to and positioned against the inner surfaces of the two X-axis support rails.

[0013] Preferably, the top of the X-axis support rail is rotatably provided with a plurality of first auxiliary wheels;

[0014] The first auxiliary wheel contacts the bottom of the fixture table and assists its movement.

[0015] Preferably, the top surface of the fixture table is provided with a plurality of loading seats, which are used to mount fixtures for clamping workpieces.

[0016] Preferably, the Y-axis shifting assembly includes a transition guide block, a Y-axis support guide rail, a guide plate, and a recessed portion;

[0017] The transition guide block is fixed to the middle of the top surface of the external support frame. The Y-axis support rail is fixed to both sides of the top surface of the built-in platform and is aligned with the transition guide block. The guide plate is fixed to the top surface of the built-in platform and is located between the two Y-axis support rails. The recessed part is located on the side of the Y-axis support rail away from the transition guide block.

[0018] Preferably, there are two transition guide blocks and the spacing between them is adapted to the spacing of the limiting plate at the bottom of the fixture table;

[0019] One of the transition guide blocks has a positioning bump on its top, which is a magnet and is used for auxiliary magnetic positioning when the fixture table moves.

[0020] Preferably, the top of the Y-axis support guide rail is rotatably provided with a plurality of second auxiliary wheels;

[0021] The top surface of the guide plate is flush with the bottom surface of the limiting plate at the bottom of the fixture table.

[0022] Preferably, the settling fastening assembly includes a lifting cylinder, a load-bearing support plate, a fastening cylinder, a fastening insert, and a positioning back plate;

[0023] The lifting cylinder is fixed to the top of the built-in platform and located between the sunken parts. The load-bearing support plate is fixed to the end of the telescopic shaft of the lifting cylinder and corresponds vertically to the sunken parts. The fastening cylinder is symmetrically fixed to the top of the built-in platform and located on both sides of the sunken parts. The fastening insert is fixed to the end of the telescopic shaft of the fastening cylinder. The positioning back plate is fixed to one side of the top surface of the built-in platform.

[0024] Preferably, a plurality of third auxiliary wheels are symmetrically arranged on both sides of the top surface of the load-bearing plate;

[0025] When the fixture table moves along the Y-axis support guide rail to the processing station, one end of it is attached to the positioning back plate. The lifting cylinder drives the load-bearing plate to move down so that the fixture table is placed on the recessed part. The fastening cylinder drives the fastening strip to be inserted into the gap between the fixture table and the Y-axis support guide rail to achieve locking.

[0026] In summary, the technical solution provided in this application has at least one of the following advantages compared with the prior art:

[0027] This dual-station CNC worktable, by setting up a dual-axis exchange mechanism consisting of an X-axis shifting component, a Y-axis shifting component, and a settlement and fastening component, solves the defects of existing technologies that rely on a single guide rail alignment for multi-station switching, resulting in jamming and misalignment due to the lack of a dedicated connecting structure, as well as the failure of the load-bearing component to separate from the guide rail during processing, which affects the accuracy due to vibration transmission. It achieves coordinated action of X-axis load-bearing movement of the fixture table, smooth Y-axis connection, and settlement and locking of the processing position. Moreover, dual-station switching does not require complex debugging, greatly reducing equipment downtime, while ensuring processing accuracy and stability.

[0028] By using a combination of a pair of parallel T-rails with symmetrically distributed T-slot sliders, and a surface contact limiting method between the bottom limiting plate of the fixture table and the X-axis support guide rail, the straightness and load-bearing stability of the X-axis movement are improved, while the movement resistance and component wear are reduced, extending the service life of the equipment, and the smoothness of the subsequent Y-axis movement is not affected.

[0029] By setting a transition guide block that aligns with the X-axis assembly, a Y-axis support guide rail with a second auxiliary wheel, and a guide plate, and using magnetic alignment protrusions to quickly assist in alignment, the guide plate assists the fixture table to move smoothly to the machining station, ensuring the continuity of movement of the fixture table between the X-axis assembly and the built-in platform, avoiding impact damage during switching, and improving the smoothness and reliability of station switching.

[0030] The combined structure, which uses a lifting cylinder to drive the load-bearing support plate to sink the fixture table and a fastening cylinder to push the insert to lock, solves the defect of vibration transmission caused by contact between the fixture table and the guide rail during processing. The sinking part provides space for sinking, so that the fixture table and the guide rail are completely separated. The locking structure enhances the stability during processing, which not only isolates the influence of guide rail vibration on the workpiece processing accuracy, but also prevents the fixture table from shifting during processing, ensuring the consistency of batch processing. Attached Figure Description

[0031] Figure 1 This is a front-view perspective view of the present invention.

[0032] Figure 2 This is a partial three-dimensional structural diagram of the relevant components of the X-axis transposition component, Y-axis displacement component, and settlement fastening component in this invention;

[0033] Figure 3 This is a schematic diagram of the relevant components of the X-axis transposition component and the Y-axis shift component in motion state in this invention;

[0034] Figure 4 This is a partially exploded three-dimensional structural view of relevant components in the X-axis transposition assembly of the present invention;

[0035] Figure 5 This is a partial three-dimensional structural diagram of the relevant components at the L-shaped carrier plate in this invention from another perspective;

[0036] Figure 6 This is a partial three-dimensional structural diagram of the relevant components in the L-shaped carrier plate of the present invention, viewed from above.

[0037] Figure 7 This is a partial front view of the structure of the limiting plate and related components at the position of the X-axis supporting guide rail in this invention;

[0038] Figure 8 This is a partial three-dimensional structural diagram of the relevant components at the Y-axis shifting assembly in this invention;

[0039] Figure 9 This is a partial three-dimensional structural diagram of the relevant components at the settlement fastening assembly in this invention;

[0040] Figure 10 This is a partial front view of the relevant components at the settlement fastening assembly in this invention;

[0041] Figure 11 This is a partial three-dimensional structural diagram of the relevant components when the fixture table moves to the processing station in this invention;

[0042] Figure 12 This is a partial three-dimensional structural diagram of the relevant components of the settlement fastening assembly in the fastened state of the present invention.

[0043] The labels in the diagram represent:

[0044] 1. CNC main body; 11. Built-in platform; 12. Tool head unit;

[0045] 2. Dual-shaft switching mechanism;

[0046] 21. X-axis transposition assembly; 211. External support frame; 212. Twin T-rails; 213. T-slot slider; 214. L-shaped carrier plate; 215. X-axis support guide rail; 2151. First auxiliary wheel; 217. Fixture table; 2171. Loading seat; 218. Limiting plate;

[0047] 22. Y-axis shifting assembly; 221. Transition guide block; 2211. Alignment protrusion; 222. Y-axis support guide rail; 2221. Second auxiliary wheel; 223. Guide plate; 224. Sinking section;

[0048] 23. Settling and fastening assembly; 231. Lifting cylinder; 232. Load-bearing support plate; 2321. Third auxiliary wheel; 233. Fastening cylinder; 234. Fastening insert; 235. Positioning back plate. Detailed Implementation

[0049] The present invention will be further described below with reference to embodiments.

[0050] As a first embodiment of this application:

[0051] Reference Appendix Figures 1 to 12 As shown, a dual-station CNC worktable includes a CNC body 1, which has a built-in platform 11 and a tool head unit 12. Note: The built-in platform 11 and the tool head unit 12 are both main components of existing CNC machine tools.

[0052] Furthermore, it also includes a dual-axis exchange mechanism 2, which is located between the outside of the CNC body 1 and the built-in platform 11, and consists of an X-axis transposition component 21, a Y-axis shift component 22 and a settling fastening component 23.

[0053] Specifically, the X-axis transposition assembly 21 includes an external support frame 211, twin T-rails 212, a T-slot slider 213, an L-shaped carrier plate 214, an X-axis support guide rail 215, and a fixture table 217. The external support frame 211 is fixedly installed on the outside of the CNC body 1. The twin T-rails 212 are two rails that are fixed to the external support frame 211 in parallel. The twin T-rails 212 with their parallel layout can effectively distribute the weight load of the fixture table 217 and the workpiece, avoid deformation or movement jamming caused by excessive force on a single guide rail, and improve the overall structural load-bearing stability and service life.

[0054] L-shaped carrier plate 214 is slidably mounted on twin T-shaped rails 212 via T-slot sliders 213. Each L-shaped carrier plate 214 is equipped with four T-slot sliders 213, which are symmetrically distributed vertically. The four symmetrically distributed T-slot sliders 213 can ensure that the L-shaped carrier plate 214 is subjected to balanced force when moving along the twin T-shaped rails 212, prevent deviation or tilting, and ensure the straightness of movement in the X direction.

[0055] There are two X-axis support rails 215, which are fixed to the top of the L-shaped carrier plate 214. The fixture table 217 is placed horizontally on the top of the two X-axis support rails 215.

[0056] Two limiting plates 218 are symmetrically fixed at the bottom of the fixture table 217. When the fixture table 217 is placed on top of the two X-direction support rails 215, the outer walls of the two limiting plates 218 are respectively attached to the inner surfaces of the two X-direction support rails 215 for positioning. This limiting structure does not require additional fasteners and achieves lateral limiting through surface contact. It can prevent the fixture table 217 from shifting in the direction perpendicular to the X direction, and does not affect its smooth movement in the X direction or the subsequent Y direction. The structure is simple and practical.

[0057] The top of the X-axis support guide rail 215 is rotatably equipped with several first auxiliary wheels 2151. The first auxiliary wheels 2151 contact the bottom of the fixture table 217 and assist its movement. The first auxiliary wheels 2151 convert the sliding friction between the fixture table 217 and the X-axis support guide rail 215 into rolling friction, which greatly reduces the moving resistance, reduces component wear, and improves the stability of the fixture table 217 when it moves.

[0058] The top surface of the fixture table 217 is provided with several loading seats 2171. The loading seats 2171 are used to install fixtures for clamping workpieces. The loading seats 2171 can be flexibly arranged according to the mounting hole positions of different fixtures, compatible with workpiece fixtures of various specifications, improving the versatility of the equipment and adapting to the processing needs of small batches and multiple varieties.

[0059] Specifically, the Y-axis shifting assembly 22 includes a transition guide block 221, a Y-axis support rail 222, a guide plate 223, and a recessed portion 224. The transition guide block 221 is fixed to the middle of the top surface of the external support frame 211. There are two of them, and the spacing between them is adapted to the spacing of the limiting plate 218 at the bottom of the fixture table 217. One of the transition guide blocks 221 has an alignment protrusion 2211 on its top. The alignment protrusion 2211 is a magnet, which is used for auxiliary magnetic positioning when the fixture table 217 moves. The magnetic positioning method does not require mechanical locking, which can quickly realize the alignment of the fixture table 217 and the transition guide block 221, which is convenient for subsequent connection with the Y-axis support rail 222. It can also be easily pushed away manually without affecting the switching efficiency.

[0060] The Y-axis support guide rail 222 is fixed on both sides of the top surface of the built-in platform 11 and is aligned with the transition guide block 221. Several second auxiliary wheels 2221 are rotatably provided on its top. The second auxiliary wheels 2221 are structurally adapted to the first auxiliary wheel 2151 to ensure the continuity of movement of the fixture table 217 when it moves from the transition guide block 221 to the Y-axis support guide rail 222, and to avoid jamming or impact caused by height difference.

[0061] The guide plate 223 is fixed to the top surface of the built-in platform 11 and located between the two Y-direction support guide rails 222. Its top surface is flush with the bottom surface of the limiting plate 218 at the bottom of the fixture table 217. The guide plate 223 can further assist in guiding the Y-direction movement of the fixture table 217, so that it can move to the processing station better.

[0062] The recess 224 is located on the side of the Y-axis support guide rail 222 away from the transition guide block 221. The design of the recess 224 provides space for the settling of the fixture table 217, so that the fixture table 217 can be completely separated from the Y-axis support guide rail 222, and avoids the vibration of the guide rail being transmitted to the fixture table 217 during processing.

[0063] Specifically, the settlement fastening assembly 23 includes a lifting cylinder 231, a load-bearing support plate 232, a fastening cylinder 233, a fastening insert 234, and a positioning back plate 235. The lifting cylinder 231 is fixed to the top of the built-in platform 11 and located between the settlement portions 224. The load-bearing support plate 232 is fixed to the end of the telescopic shaft of the lifting cylinder 231 and corresponds vertically to the settlement portion 224. Several third auxiliary wheels 2321 are symmetrically arranged on both sides of its top surface. The third auxiliary wheels 2321 can assist the fixture table 217 to move above the load-bearing support plate 232, reduce the movement resistance, and avoid wear caused by direct friction between the bottom of the fixture table 217 and the load-bearing support plate 232.

[0064] The fastening cylinders 233 are symmetrically fixed to the top of the built-in platform 11 and located on both sides of the recessed portion 224. The fastening inserts 234 are fixed to the ends of the telescopic shafts of the fastening cylinders 233. The positioning backplate 235 is fixed to one side of the top surface of the built-in platform 11.

[0065] The workflow of this first embodiment is as follows:

[0066] First, install the corresponding fixture onto the fixture table 217 according to the workpiece to be processed, and clamp and fix the workpiece; push one of the L-shaped carrier plates 214 along the twin T-shaped rails 212X direction by manual or external drive mechanism, so that the fixture table 217 aligns with the transition guide block 221, and the alignment protrusion 2211 magnetically attracts the limiting plate 218 to achieve alignment.

[0067] Then, the jig table 217 is pushed to move along the transition guide block 221 and the Y-direction support guide rail 222 in the Y direction until one end of the jig table 217 is in contact with the positioning back plate 235. At this time, the jig table 217 is located above the load-bearing support plate 232. Then, the telescopic shaft of the lifting cylinder 231 is controlled to retract, which drives the load-bearing support plate 232 and the jig table 217 to sink, so that the jig table 217 rests on the recessed part 224 and is completely separated from the Y-direction support guide rail 222. Then, the telescopic shaft of the fastening cylinder 233 is controlled to extend, which drives the fastening insert 234 to be inserted into the gap between the jig table 217 and the Y-direction support guide rail 222, thereby locking the jig table 217.

[0068] Finally, the tool head unit 12 processes the workpiece. During the processing, because the fixture table 217 is separated from the guide rail, the vibration of the guide rail will not be transmitted to the workpiece, thus avoiding affecting the processing accuracy. After the processing is completed, the control clamping cylinder 233 is reset, and the lifting cylinder 231 drives the fixture table 217 to rise to be flush with the Y-axis support guide rail 222, and pushes the fixture table 217 back to the X-axis switching component 21. The fixture table 217 on another L-shaped carrier plate 214 is moved to the processing station to realize the dual-station switching and reduce equipment downtime.

[0069] Note: The solution in this embodiment is mainly applied to the continuous processing of batch workpieces.

[0070] As a second embodiment of this application:

[0071] As another optional implementation, the above-mentioned dual-station CNC worktable, based on the X-axis shifting component 21 in the above embodiment 1, can be further equipped with: an X-axis drive motor and a ball screw.

[0072] Specifically, the X-axis drive motor is fixed to the end of the external support 211, and the ball screw is set parallel to the twin T-rails 212. One end of the ball screw is connected to the output shaft of the X-axis drive motor, and the other end is rotatably connected to the external support 211. The L-shaped carrier plate 214 is threadedly connected to the ball screw through a nut seat. The drive method of the X-axis drive motor and the ball screw is adopted to replace manual pushing, realize the automated X-axis movement of the L-shaped carrier plate 214, improve the movement accuracy and efficiency, and reduce the labor intensity of operators. It is especially suitable for heavy workpieces or high-frequency switching scenarios.

[0073] Furthermore, a position sensor can be added to the settling and fastening assembly 23. The position sensor is fixed to the top surface of the built-in platform 11 and corresponds to the Y-axis movement endpoint and the settling and locking position of the fixture table 217, respectively. The position sensor can detect the position signal of the fixture table 217 in real time and transmit the signal to the control system to realize the linkage automatic control of the lifting cylinder 231 and the fastening cylinder 233, avoid positioning deviation caused by human operation error, and improve the automation level and operation stability of the equipment.

[0074] Note: The X-axis drive motor, ball screw, and position sensor are known technologies, and their installation and application are understood by those skilled in the art, therefore they are not annotated in the figure.

[0075] The working logic of this embodiment is optimized based on the first embodiment as follows: After receiving the processing command, the control system drives the X-axis drive motor to run, and drives the L-shaped carrier plate 214 to move along the twin T-shaped rails 212 to the designated position through the ball screw; when the fixture table 217 moves along the Y-axis to fit with the positioning back plate 235, the position sensor detects the signal and feeds back, and the control system automatically controls the lifting cylinder 231 to sink; after the fixture table 217 sinks into place, another position sensor feeds back the signal, and the control system drives the fastening cylinder 233 to extend and lock; after processing is completed, the control system reverses the control of each component to reset according to the preset program, realizing fully automatic dual-station switching.

[0076] As a third embodiment of this application:

[0077] As another implementation method, the alignment protrusion 2211 on the top of the transition guide block 221 of the above-mentioned dual-station CNC worktable is replaced with an elastic positioning pin, and the corresponding position of the limiting plate 218 is provided with a positioning hole. The positioning accuracy is higher by the cooperation between the elastic positioning pin and the positioning hole, which can effectively avoid the magnetic field interference or poor adsorption that may occur in magnetic positioning, and is suitable for processing scenarios with higher positioning accuracy requirements.

[0078] The loading seat 2171 on the top surface of the fixture table 217 is provided with a T-slot structure. The T-slot structure can be compatible with clamping blocks or fixture connectors of different specifications, eliminating the need to re-drill holes according to the fixture, further improving the flexibility and versatility of fixture installation, and reducing the debugging time during production changeover.

[0079] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention. It should be understood that in this application, the rotating, sliding, meshing, belt-driven and other moving parts are well lubricated and not prone to slippage or wear, and each of them is provided with a corresponding protective shell. However, in the accompanying drawings of this application, the connection state of each moving part is not shown. In addition, it should be understood that each part in this application is made of metal or plastic material with adaptable strength in the relevant field to ensure that its structural rigidity meets the actual requirements.

Claims

1. A dual-station CNC worktable, comprising a CNC body (1), wherein the CNC body (1) is provided with a built-in platform (11) and a tool head unit (12), characterized in that, It also includes a dual-axis exchange mechanism (2), which is located between the outside of the CNC body (1) and the built-in platform (11), and consists of an X-axis transposition component (21), a Y-axis shift component (22) and a settling fastening component (23); The X-axis shifting component (21) is used to carry and drive the fixture table (217) to move along the X-axis direction. The Y-axis shifting component (22) is used to realize the Y-axis connection movement of the fixture table (217) between the X-axis shifting component (21) and the built-in platform (11). The settling fastening component (23) is set above the built-in platform (11) and is used for settling separation and locking fixation after the fixture table (217) moves to the processing station. The X-axis transposition assembly (21) includes an external stand (211), twin T-rails (212), a T-slot slider (213), an L-shaped carrier plate (214), an X-axis support guide rail (215), and a fixture table (217). The external support frame (211) is fixedly installed on the outside of the CNC body (1). The twin T-shaped rails (212) are two rails that are fixed to the external support frame (211) in parallel. The L-shaped carrier plate (214) is slidably installed on the twin T-shaped rails (212) through the T-slot slider (213). The X-direction support guide rails (215) are two rails that are fixed to the top of the L-shaped carrier plate (214). The fixture table (217) is placed horizontally on the top of the two X-direction support guide rails (215). The Y-axis shifting assembly (22) includes a transition guide block (221), a Y-axis support guide rail (222), a guide plate (223), and a recessed part (224). The transition guide block (221) is fixed to the middle of the top surface of the external support frame (211). The Y-axis support rail (222) is fixed to both sides of the top surface of the built-in platform (11) and is aligned with the transition guide block (221). The guide plate (223) is fixed to the top surface of the built-in platform (11) and is located between the two Y-axis support rails (222). The recessed part (224) is located on the side of the Y-axis support rail (222) away from the transition guide block (221).

2. The dual-station CNC worktable according to claim 1, characterized in that, Two limiting plates (218) are symmetrically fixed at the bottom of the fixture table (217); When the fixture table (217) is placed on top of the two X-axis support rails (215), the outer walls of the two limiting plates (218) are respectively attached to and positioned against the inner surfaces of the two X-axis support rails (215).

3. The dual-station CNC worktable according to claim 2, characterized in that, The top of the X-axis support rail (215) is rotatably provided with several first auxiliary wheels (2151). The first auxiliary wheel (2151) contacts the bottom of the fixture table (217) and assists its movement.

4. The dual-station CNC worktable according to claim 2, characterized in that, The top surface of the fixture table (217) is provided with several loading seats (2171), which are used to install fixtures for clamping workpieces.

5. The dual-station CNC worktable according to claim 1, characterized in that, The transition guide block (221) consists of two blocks, and the spacing between them is adapted to the spacing of the limiting plate (218) at the bottom of the fixture table (217); One of the transition guide blocks (221) has a positioning bump (2211) on its top. The positioning bump (2211) is a magnet and is used for auxiliary magnetic positioning when the fixture table (217) moves.

6. The dual-station CNC worktable according to claim 1, characterized in that, The top of the Y-axis support rail (222) is rotatably equipped with several second auxiliary wheels (2221). The top surface of the guide plate (223) is flush with the bottom surface of the limiting plate (218) at the bottom of the fixture table (217).

7. The dual-station CNC worktable according to claim 1, characterized in that, The settling fastening assembly (23) includes a lifting cylinder (231), a load-bearing support plate (232), a fastening cylinder (233), a fastening insert (234), and a positioning back plate (235). The lifting cylinder (231) is fixed to the top of the built-in platform (11) and located between the sunken parts (224). The load-bearing support plate (232) is fixed to the end of the telescopic shaft of the lifting cylinder (231) and corresponds to the sunken parts (224) vertically. The fastening cylinder (233) is symmetrically fixed to the top of the built-in platform (11) and located on both sides of the sunken parts (224). The fastening insert (234) is fixed to the end of the telescopic shaft of the fastening cylinder (233). The positioning back plate (235) is fixed to one side of the top surface of the built-in platform (11).

8. The dual-station CNC worktable according to claim 7, characterized in that, Several third auxiliary wheels (2321) are symmetrically arranged on both sides of the top surface of the load-bearing plate (232). When the jig table (217) moves along the Y-axis support guide rail (222) to the processing station, one end of it is in contact with the positioning back plate (235). The lifting cylinder (231) drives the load-bearing plate (232) to move down so that the jig table (217) is placed on the recessed part (224). The fastening cylinder (233) drives the fastening insert (234) to be inserted into the gap between the jig table (217) and the Y-axis support guide rail (222) to achieve locking.

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