Milling table for multi-station CNC machine tool

Abstract

The present invention relates to the technical field of machine tool equipment, and relates to a milling processing table of a multi-station CNC machine tool, comprising: a T-shaped workbench and a loading platform; a side plate, which is installed on the side edge of the loading platform, and a guide rod and a screw rod are rotatably provided on the side plate; a moving block, which is respectively inserted into the guide rod and connected to the screw rod; a step clamping platform, which is provided with two groups, one group is fixed on the table surface of the loading platform, and the other group is connected to the moving block through a through port opened downward on the loading platform; a rotating device, which is installed on the loading platform between the gaps of the step clamping platform; a support rack, which is installed on the rotating device; an elastic telescopic guide, which is arranged on the loading platform; and a sheet material pushing mechanism, which is installed on the loading platform. The present invention flips and stacks the processed parts on the elastic telescopic guide through the rotating device and the support rack, and at the same time, the sheet material pushing mechanism automatically transports the parts to the step clamping platform, which can avoid the process of frequent manual replacement of parts and reduce the length of time for which the equipment is manned.

Description

Technical Field

[0001] The invention relates to the technical field of machine tool equipment, and in particular to a milling processing table of a multi-station CNC machine tool. Background Art

[0002] A multi-station CNC machine tool refers to a CNC machine tool that is equipped with multiple side-by-side processing heads. This type of CNC machine tool is generally used for the finishing of aluminum alloy structural parts and in-mold injection molding structural parts such as computers and mobile phones. The size and volume of this type of workpiece are generally small, and the shape specifications are generally mainly rectangular sheets. Only plane milling is required during processing. The process is relatively simple and the processing demand is large.

[0003] This type of workpiece can be processed quickly because it does not have a complex process structure. Therefore, new materials need to be replaced frequently during processing, and the manual loading and unloading process restricts the processing speed. As the number of processes increases, the time a single machine tool is manned during processing will also increase significantly, and operators cannot take care of multiple devices at the same time. Summary of the invention

[0004] The present invention aims to solve the problem of long equipment supervision time during loading and unloading of multi-station CNC machine tools when processing simple and large-volume aluminum alloy structural parts. To this end, the present invention provides a milling processing table of a multi-station CNC machine tool that can automatically provide materials.

[0005] To achieve the above object, the present invention provides a milling table for a multi-station numerical control machine tool, comprising: a T-shaped workbench; a loading table, which is installed in a T-shaped groove on the T-shaped workbench through a T-shaped block, and a through C-shaped cavity is opened inside the loading table; side plates, installed at the opening of the C-shaped cavity at the side edge of the loading table, a guide rod and a lead screw are rotatably arranged on the side plates, and two groups of the guide rod and the lead screw are symmetrically arranged and are respectively located on both sides inside the loading table; a driving device, installed inside the loading table and driving the lead screws on both sides to rotate; a rod connecting plate, installed at the side edge of the loading table on the side away from the side plate, and the other ends of the lead screw and the guide rod are connected to the rod connecting plate; moving blocks, respectively penetrating through the guide rods on both sides and connected to the lead screw; step clamping tables, two groups are arranged at intervals of two, one group is fixedly arranged on the tabletop of the loading table, and the other group is connected to the moving block through a through hole opened downward on the loading table; a rotating device, installed on the loading table between the step clamping tables; a material supporting frame, installed on the rotating device; elastic telescopic guides, symmetrically arranged on the loading table and vertically close to the rotating device; a supporting member, slidably arranged on the elastic telescopic guides; the material supporting frame is driven by the rotating device to swing, and then the workpiece is flipped onto the supporting member; a sheet metal pushing mechanism, installed on the loading table and aligned with the step clamping table, and the workpiece is pushed onto the step clamping table after being placed on the sheet metal pushing mechanism.

[0006] As a further improvement of the solution, the elastic telescopic guide comprises: a support frame, symmetrically arranged on the loading table and vertically close to the rotating device; a guide rod, arranged on the support frame; a spring, sleeved on the guide rod; a straight groove is opened on the guide rod, and the supporting member is slidably arranged on the guide rod through the straight groove and is抵住 by the spring.

[0007] As a further improvement of the solution, the supporting member comprises: a support plate, which is slidably arranged on the guide rod after being fitted with the straight groove by setting protruding engaging teeth and is抵住 by the spring; an elastic sheet, installed at the bottom of the support plate, a notch is opened at the bottom of the support plate, reverse teeth are fixedly installed on the elastic sheet, positive teeth opposite to the direction of the reverse teeth are arranged on the guide rod, and the straight edges of the reverse teeth are in contact; the side of the support plate facing the rotating device is a bevel edge.

[0008] As a further improvement of the solution, it further comprises: a protective plate, installed at the side edge of the loading table to cover the side plates; a through gap is left between the rod connecting plate and the bottom of the loading table.

[0009] As a further improvement of the solution, it further includes: a cover plate, which is installed on the stepped clamping table capable of moving with the moving block and covers the through port; an intermediate plate, which is installed in the two-side channels of the U-shaped cavity of the loading table, and the lead screw and the guide rod pass through the intermediate plate.

[0010] As a further improvement of the solution, it further includes: a through port is opened through the bottom of the loading table directly below the through port, and a mesh plate is installed at the bottom of the loading table through the through port.

[0011] As a further improvement of the solution, it further includes: a roller, which is rotatably arranged on the object support.

[0012] As a further improvement of the solution, the sheet material pushing mechanism includes: a linear driving table, which is installed on the T-shaped workbench through movable locking parts arranged on both side edges thereof; two limit stepped plates, one of which is fixedly arranged on one side of the linear driving table, and the other is slidably installed on the other side of the linear driving table; a slider, which is drivingly installed on the linear driving table; a movable tooth, which is telescopically arranged on the slider through an elastic member; a limit plate, which is movably arranged on the side edge of the limit stepped plate through a locking bolt.

[0013] As a further improvement of the solution, it further includes: a telescopic rod, which is installed on the linear driving table; a jacking block, which is installed at the end of the movable rod of the telescopic rod, and a movable tooth is telescopically arranged on the jacking block through an elastic member.

[0014] As a further improvement of the solution, the movable locking part includes: a T-shaped lock block, which is symmetrically slidably arranged at the bottom of the linear driving table, and an inlet is opened on the T-shaped lock block; a T-shaped top block, which penetrates into the side wall of the linear driving table and passes through the inlet; a screw rod, which is spirally penetrated through the T-shaped top block and rotatably connected to the linear driving table.

[0015] The present invention brings the following effects:

[0016] 1. By arranging a rotating device and an object support on the T-shaped workbench, the processed workpieces are turned and stacked on the elastic telescopic guide device, and at the same time, the sheet material pushing mechanism automatically conveys the workpieces to the stepped clamping table, which can avoid the process of manual frequent workpiece replacement, reduce the duration of equipment manned operation, and effectively improve the processing efficiency for a large number of processed workpieces as the frequency of manual workpiece replacement decreases.

[0017] 2. The protective plate provided in the present invention can cover the gap near the driving device to prevent the cutting fluid from invading and damaging the device; the cover plate provided can cover the through-port to prevent processing debris from entering the inside of the worktable from the through-port; the intermediate plate provided blocks the cutting fluid entering from the through-port from continuing to flow to the driving device, and can also ensure the stable rotation of the screw rod.

[0018] 3. The mesh plate provided in the present invention can allow the cutting fluid entering the interior of the stage to flow out along the mesh plate, thereby avoiding accumulation inside the stage.

[0019] 4. The positive teeth on the guide rod cooperate with the reverse teeth on the support plate, so that the support plate will not slide forward by itself during the retreat process, avoiding pushing the stacked materials back onto the step clamping table. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a complete schematic diagram of the present invention.

[0021] Figure 2 It is a partial schematic diagram of the present invention.

[0022] Figure 3 For the present invention Figure 2 The schematic diagram of the T-shaped workbench is hidden.

[0023] Figure 4 It is a schematic structural diagram of the object carrier and its components according to the present invention.

[0024] Figure 5 For the present invention Figure 4 Bottom diagram of .

[0025] Figure 6 It is a schematic diagram of the interior of the stage of the present invention after being cut away.

[0026] Figure 7 It is a schematic diagram of the linear drive platform, the limiting step plate, the sliding block, the telescopic rod and the limiting plate of the present invention.

[0027] Figure 8 It is an enlarged schematic diagram of part A of the present invention.

[0028] Fig. 9 It is a schematic diagram of the specific structure of the elastic telescopic guide and the support member of the present invention.

[0029] Fig.10 It is a schematic diagram of the state of the support rack of the present invention flipping the material.

[0030] The corresponding relationship between the reference numerals and the names of the components in the accompanying drawings is as follows: 1-T-type workbench, 2-T-slot, 21-T-block, 3-loading platform, 31-side plate, 32-guide rod, 33-screw rod, 34-driving device, 35-rod body connecting plate, 36-through gap, 37-moving block, 38-step clamping platform, 381-through port, 382-cover plate, 39-middle plate, 4-protective plate, 5-net plate, 51-through port, 6-rotating device, 61-support rack, 62-roller, 7-elastic stretch Retraction guide, 71-support frame, 72-guide rod, 73-spring, 74-straight groove, 75-straight tooth, 8-support member, 81-support plate, 82-occlusal tooth, 83-elastic sheet, 84-reverse tooth, 85-bevel, 9-linear drive table, 10-limiting step plate, 11-slider, 111-movable tooth, 12-telescopic rod, 121-ejection block, 13-limiting plate, 131-locking bolt, 14-T-type locking block, 141-entry port, 142-T-type ejector block, 143-screw, 300-material. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. It will be appreciated that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for ease of description, only some but not all structures related to the present application are shown in the drawings. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the art without making creative work are within the scope of protection of the present application.

[0032] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0033] The present invention specifically discloses a milling table of a multi-station CNC machine tool, such as Figure 1-Figure 10 As shown, it includes: a T-shaped workbench 1, a stage 3 installed in a T-shaped slot 2 on the T-shaped workbench 1 through a T-shaped block 21, and the stage 3 is used to hold and clamp a material 300 that needs to be milled. The material 300 is clamped and mounted on the stage 3 to complete the processing. Figure 6As shown in the figure, a through C-shaped cavity is formed inside the stage 3. The side plate 31 is installed at the opening of the C-shaped cavity on the right edge of the stage 3. A guide rod 32 and a lead screw 33 are rotatably provided on the side plate 31. Two groups of the guide rod 32 and the lead screw 33 are symmetrically arranged and are respectively disposed on both sides of the C-shaped cavity inside the stage 3. A driving device 34 is fixedly installed inside the C-shaped cavity of the stage 3. The driving device 34 is connected to the lead screws 33 on both sides to drive the lead screws 33 to rotate. The driving device 34 is a combination of a motor and a gear box. The motor drives the gear box, and the lead screw 33 is connected to the output end of the gear box. On the side of the other ends of the guide rod 32 and the lead screw 33 away from the side plate 31, a rod body connecting plate 35 is installed. The other ends of the lead screw 33 and the guide rod 32 are rotatably connected to the rod body connecting plate 35.

[0034] According to Figure 6 As shown in the figure, moving blocks 37 are slidably penetrated on the guide rods 32 arranged on both sides. The moving blocks 37 are connected to the respective adjacent lead screws 33. By driving the lead screws 33 to rotate through the driving device 34, the moving blocks 37 can be made to slide back and forth on the guide rods 32. The stepped clamping platforms 38 are spaced apart in pairs as a group, and there are two groups in total. According to Figure 4 As shown in the figure, one group is fixedly provided on the tabletop of the stage 3. According to Figure 4 and Figure 6 As shown in the figure, the other group is connected to the moving block 37 through a through hole 381 opened downward on the stage 3. During use, the workpiece 300 to be processed is placed on the stepped clamping platforms 38 on both sides. As the lead screw 33 rotates, the movable stepped clamping platform 38 will clamp and fix the workpiece 300. After the fixing is completed, the machining spindle on the numerically controlled machine tool can drive the milling cutter to move downward to process the workpiece 300. It can be imagined that on a multi-station numerically controlled machine tool, multiple stages 3 can be installed on the T-shaped worktable 1 to match multiple machining axes for processing.

[0035] According to Figure 4 As shown in the figure, the moving block 37 is connected to the stepped clamping platform 38 through the through hole 381. In order to prevent the chips generated by milling from entering the inside of the stage 3 through the through hole 381, a cover plate 382 is installed on the stepped clamping platform 38 that can follow the movement of the moving block 37. The through hole 381 is covered by the cover plate 382, so that the chips generated during milling will not enter the inside of the stage 3 through the through hole 381.

[0036] According to Figure 4 and Figure 6As shown, the rod connecting plate 35 is at the edge of the worktable 3, and the rod connecting plate 35 is connected to the screw rod 33 and the guide rod 32, and the end portion of the through port 381 is blocked by the rod connecting plate 35, and the cover plate 382 arranged on the step clamping platform 38 can only cover the through port 381 on one side, and a small part of the through port 381 on the other side will be left uncovered. The debris generated when milling the workpiece 300 will enter the position of the inside of the carrier plate near the rod connecting plate 35 from the through port 381 partly close to the edge of the carrier plate, and under the push of the moving block 37, the debris will accumulate in the corner. For this reason, a through gap 36 is left between the rod connecting plate 35 and the bottom of the worktable 3 to allow the debris to be discharged, and the through gap 36 can be used to clean up the debris accumulated in the corner.

[0037] according to Figure 4 As shown, a rotating device 6 that can rotate is driven and installed on the worktable 3. The rotating device 6 is on the same side as the fixed step clamp 38 and is located between the two step clamps 38. The rotating device 6 is a motor / rotating cylinder wrapped by a circular shell. The output shaft of the motor / rotating cylinder is fixed on the worktable 3, and the rotation angle is ninety degrees. A support rack 61 is fixedly installed on the rotating device 6. The thickness of the support rack 61 does not exceed the height of the step clamp 38. In the normal state, the support rack 61 is placed horizontally on the worktable 3, and the material 300 to be processed is above the support rack 61. When the material 300 is processed, the rotating device 6 drives the support rack 61 to swing ninety degrees to a standing state, so that the processed material 300 can be flipped from the step clamp 38 to the other side. A roller 62 is rotatably provided on the support frame 61 , and when the material 300 slides on the stepped clamping platform 38 with intervals, it will contact with the middle roller 62 , thereby being able to slide better.

[0038] according to Figure 4 and Fig.10 As shown, the processed parts 300 are turned over by the support rack 61 and then stacked on the elastic telescopic guide 7. The elastic telescopic guide 7 is symmetrically arranged on the stage 3 and vertically close to the rotating device 6. A support member 8 is slidably arranged on the elastic telescopic guide 7. The elastic telescopic guide 7 presses against the support member 8 toward the rotating device 6. The parts 300 on the elastic telescopic guide 7 are pressed by the support member 8 to prevent them from tipping over. As the parts 300 are stacked on the elastic telescopic guide 7, the support member 8 will correspondingly slide in the direction away from the rotating device 6. When the parts 300 are stacked to a certain number, the processed parts 300 can be taken away at one time. Figure 3As shown, a sheet material pushing mechanism is installed on the stage 3, and the sheet material pushing mechanism is matched and aligned with the step clamping platform 38. Multiple pieces of material 300 can be placed in the sheet material pushing mechanism at one time, and the sheet material pushing mechanism can push the material pieces 300 onto the step clamping platform 38 one by one.

[0039] according to Figure 4 and Fig. 9 As shown, the elastic telescopic guide 7 includes: a support frame 71 for fixing on the worktable 3, the support frame 71 is provided with two and both are vertically close to the rotating device 6, a guide rod 72 is installed on the support frame 71, a spring 73 is sleeved on the guide rod 72, a straight groove 74 is opened on the guide rod 72, and the support member 8 is slidably arranged on the guide rod 72 through the straight groove 74 and is supported by the spring 73.

[0040] according to Figure 4 and Fig. 9 As shown, the support member 8 includes: a support plate 81, which is slidably arranged on the guide rod 72 after the protruding engaging teeth 82 are arranged to fit with the straight groove 74, and is supported by the spring 73. The support plate 81 is kept close to the rotating device 6 by the spring 73; wherein, an elastic sheet 83 is fixedly installed at the bottom of the support plate 81, one side of the elastic sheet 83 is connected to the support plate 81, and the other side can be moved, a notch is opened at the bottom of the support plate 81, and a reverse tooth 84 is fixedly installed on the elastic sheet 83, and a spur tooth 75 opposite to the reverse tooth 84 is arranged on the guide rod 72, and the reverse tooth 84 is in the notch and can just be against the straight edge of the reverse tooth 84.

[0041] according to Fig.10 As shown, after the support frame 61 flips the material 300 on the step clamping platform 38 onto the elastic telescopic guide 7, the material 300 is supported by the support member 8, and the support plate 81 on the support member 8 has a bevel 85 on the side facing the rotating device 6, so that the material 300 is in a slightly inclined state and will not easily fall toward the side of the rotating device 6. As the material 300 is stacked on the elastic telescopic guide 7, the support member 8 will slide to the right as a whole and compress the spring 73. In order to avoid the spring 73 The elastic force pushes the material 300 to move toward the rotating device 6. When the support plate 81 slides to the right, the reverse tooth 84 on the support plate 81 slides along the positive tooth 75. When the spring 73 pushes the support plate 81 to slide to the left through the elastic force, the positive tooth 75 and the reverse tooth 84 resist each other and cannot slide. After all the materials 300 on the elastic telescopic guide 7 are removed, the elastic sheet 83 is pushed to disengage the reverse tooth 84 from the positive tooth 75, so that the support plate 81 can slide again close to the position of the rotating device 6.

[0042] according to Figure 6As shown in the figure, a protective plate 4 is installed on the side edge of the carrier table 3 close to the driving device 34. The protective plate 4 is used to cover the side plate 31. The protective plate 4 can prevent the cutting fluid during milling from contaminating the side plate 31 and avoid the cutting fluid from invading the inside of the carrier table 3 and damaging the driving device 34.

[0043] According to Figure 6 As shown in the figure, an intermediate plate 39 is installed in the two side channels of the U-shaped cavity of the carrier table 3. The lead screw 33 and the guide rod 32 pass through the intermediate plate 39. The function of the intermediate plate 39 is to separate the area where the moving block 37 slides from the area where the driving device 34 is located, avoid the cutting fluid during milling from flowing into the inside of the carrier table 3 through the through port 381 and flowing to the driving device 34, and at the same time can also ensure the stability of the rotation of the lead screw 33 and avoid the situation of the lead screw 33 shaking and bending.

[0044] According to Figure 5 and Figure 6 As shown in the figure, a through port 51 is opened at the bottom of the carrier table 3 directly below the through port 381. A net plate 5 is detachably installed at the bottom of the carrier table 3 through the through port 51. The cutting fluid that enters through the through port 381 will finally be discharged through the net plate 5 and fall on the T-shaped workbench 1 to avoid the accumulation of cutting fluid inside the carrier table 3.

[0045] According to Figure 3 、 Figure 7 and Figure 8 As shown in the figure, the sheet material pushing mechanism includes: a linear driving table 9. The linear driving table 9 is installed on the T-shaped workbench 1 through movable locking parts arranged on its two side edges. According to Figure 8 As shown in the figure, the movable locking part includes: T-shaped lock blocks 14 symmetrically sliding at the bottom of the linear driving table 9. An inlet 141 is opened on the T-shaped lock block 14. The T-shaped top block 142 penetrates into the side wall of the linear driving table 9 and passes through the inlet 141. The screw 143 is helically penetrated through the T-shaped top block 142 and rotatably connected to the linear driving table 9. During use, the T-shaped lock block 14 is slid and clamped into the T-shaped groove 2 of the T-shaped workbench 1. As the screw 143 rotates, the T-shaped top block 142 slides forward, so that the T-shaped inclined surface of the T-shaped top block 142 lifts the T-shaped top block 142, thereby locking and fixing the linear driving table 9 on the T-shaped workbench 1.

[0046] The present invention sets a rotating device 6 and a supporting rack 61 on the T-shaped workbench 1 to flip and stack the processed material 300 on the elastic telescopic guide 7, thereby realizing the transfer and stacking of the processed material 300 from the step clamp 38 to the non-processing area. After stacking multiple materials 300 on the sheet metal pushing mechanism, the materials 300 can be automatically conveyed to the step clamp 38 one by one, which can effectively reduce the number of frequent manual replacement of materials 300 and reduce the length of time that the equipment is manned. As the frequency of manual replacement of materials 300 decreases, the processing efficiency of large-scale processed materials 300 can be effectively improved.

[0047] according to Figure 7 As shown, both sides of the linear drive platform 9 are provided with limit step plates 10, one of which is fixedly provided on one side of the linear drive platform 9, and the fixedly installed limit step plate 10 is aligned with the fixedly installed step clamping platform 38, so that the material 300 can slide from the limit step plate 10 to the step clamping platform 38, and the other limit step plate 10 is slidably installed on the other side of the linear drive platform 9, and the position of the limit step plate 10 can be adjusted by sliding to adapt to materials 300 of different widths. A slider 11 is connected to the driving end of the linear drive platform 9, and a linear drive guide rail is provided inside the linear drive platform 9, so the slider 11 is connected to the linear drive guide rail to realize reciprocating movement in a straight line, and a movable tooth 111 is telescopically installed on the slider 11 through an elastic member, and the elastic member is a spring 73.

[0048] When in use, multiple pieces 300 can be stacked on the limiting step plates 10 at one time, and the slider 11 is located between the two limiting step plates 10 and directly below the pieces 300. In the initial state, the movable teeth 111 on the slider 11 are against the edge of the pieces 300. The piece 300 at the bottom can be pushed out by the drive of the linear drive table 9. In order to prevent the pieces 300 stacked on top from sliding out with the pieces 300 at the bottom, a limiting screw is installed at the side edge of the limiting step plate 10 through a locking bolt 131. The positioning plate 13 and the limiting plate 13 adjust and limit the spacing at the bottom of the step plate 10 through the locking bolt 131, so that the adjusted spacing can only allow one piece of material 300 to pass through, so that when the slider 11 pushes the bottom piece 300, the upper piece 300 will not move along with it, and the last pushed out piece 300 falls on the step clamp 38 to wait for clamping processing, and when the slider 11 moves back to its original position, the movable tooth 111 is pressed down and retracted until the movable tooth 111 moves to the edge of the piece 300 again and bounces up to resist the edge of the piece 300.

[0049] according to Figure 7As shown, a telescopic rod 12 is fixedly mounted on the linear drive table 9, and an ejection block 121 is fixedly mounted on the movable rod of the telescopic rod 12. The ejection block 121 is telescopically provided with movable teeth 111 through elastic members. After the material 300 is pushed out from the limit step plate 10 through the slider 11, the ejection block 121 can be driven to slide out through the telescopic rod 12, so that the movable teeth 111 on the ejection block 121 abut against the edge of the material 300 and push the material 300, thereby pushing the material 300 to a further position.

[0050] The above-mentioned embodiments only express the preferred implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person skilled in the art, several modifications, improvements and substitutions can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. A milling table for a multi-station CNC machine tool, comprising: A T-shaped workbench (1); a loading platform (3), which is installed in a T-shaped slot (2) on the T-shaped workbench (1) through a T-shaped block (21), and a through-shaped cavity is provided inside the loading platform (3); a side plate (31), which is installed at the opening of the cavity at the side edge of the loading platform (3), and a guide rod (32) and a screw rod (33) are rotatably provided on the side plate (31), and the guide rod (32) and the screw rod (33) are symmetrically provided in two groups and are respectively placed on both sides of the loading platform (3); a driving device (34), which is installed in the loading platform (3) and drives the screw rods (33) on both sides to rotate; A rod body connecting plate (35) is installed on the side edge of the loading platform (3) away from the side plate (31), and the other ends of the screw rod (33) and the guide rod (32) are connected to the rod body connecting plate (35); a moving block (37) is respectively inserted into the guide rods (32) on both sides and connected to the screw rod (33); a stepped clamping platform (38) is provided with two groups of two groups, one group is fixed on the table surface of the loading platform (3), and the other group is connected to the moving block (37) through a through hole (381) opened downward on the loading platform (3); it is characterized in that it also includes: A rotating device (6) is mounted on the loading platform (3) between the gaps of the step clamping platform (38); a support frame (61) is mounted on the rotating device (6); an elastic telescopic guide (7) is symmetrically arranged on the loading platform (3) and vertically close to the rotating device (6); a support member (8) is slidably arranged on the elastic telescopic guide member (7); the support frame (61) is driven to swing by the rotating device (6), thereby flipping the material (300) onto the support member (8); a sheet material pushing mechanism is mounted on the loading platform (3) and is matched and aligned with the step clamping platform (38); the material (300) is placed on the sheet material pushing mechanism and then pushed onto the step clamping platform (38); The elastic telescopic guide (7) comprises: a support frame (71) symmetrically arranged on the loading platform (3) and vertically close to the rotating device (6); a guide rod (72) arranged on the support frame (71); a spring (73) sleeved on the guide rod (72); a straight groove (74) is formed on the guide rod (72), and the support member (8) is slidably arranged on the guide rod (72) through the straight groove (74) and is supported by the spring (73); The support member (8) includes: a support plate (81) which is slidably arranged on the guide rod (72) after being engaged with the straight groove (74) by providing protruding engaging teeth (82), and is resisted by the spring (73); an elastic piece (83) installed at the bottom of the support plate (81), a notch is provided at the bottom of the support plate (81), a reverse tooth (84) is fixedly installed on the elastic piece (83), positive teeth (75) arranged in the opposite direction to the reverse tooth (84) are provided on the guide rod (72), and the straight edges of the reverse teeth (84) are abutted against each other; one side of the support plate (81) facing the rotating device (6) is an inclined edge (85).

2. The milling table of the multi-station CNC machine tool according to claim 1, characterized in that: It further includes: A protection plate (4) installed at the side edge of the loading platform (3) to cover the side plate (31); a clearance (36) is left between the rod body connecting plate (35) and the bottom of the loading platform (3).

3. The milling table of the multi-station CNC machine tool according to claim 2, characterized in that: It further includes: A cover plate (382) installed on the stepped clamping table (38) that can follow the movement of the moving block (37) to cover the through port (381); an intermediate plate (39) installed in the two side channels of the U-shaped cavity of the loading platform (3), and the lead screw (33) and the guide rod (32) pass through the intermediate plate (39).

4. The milling table of the multi-station CNC machine tool according to claim 3, characterized in that: It further includes: A through port (51) is opened at the bottom of the loading platform (3) directly below the through port (381), and a mesh plate (5) is installed at the bottom of the loading platform (3) through the through port (51).

5. The milling table of the multi-station CNC machine tool according to claim 4, characterized in that: It further includes: A roller (62) is rotatably arranged on the object support (61).

6. The milling table of a multi-station CNC machine tool according to any one of claims 1 to 5, characterized in that: The sheet material pushing mechanism includes: a linear driving table (9) installed on the T-shaped workbench (1) by movable locking parts arranged on both side edges thereof; two limiting stepped plates (10), one is fixedly arranged on one side of the linear driving table (9), and the other is slidably installed on the other side of the linear driving table (9); a slider (11) is drivingly installed on the linear driving table (9); a movable tooth (111) is telescopically arranged on the slider (11) through an elastic member; a limiting plate (13) is movably arranged at the side edge of the limiting stepped plate (10) through a locking bolt (131).

7. The milling table of the multi-station CNC machine tool according to claim 6, characterized in that: It further includes: An expansion rod (12) is installed on the linear driving table (9); a jacking block (121) is installed at the end of the movable rod of the expansion rod (12), and a movable tooth (111) is telescopically arranged on the jacking block (121) through an elastic member.

8. The milling table of the multi-station CNC machine tool according to claim 7, characterized in that: The movable locking part includes: a T-shaped locking block (14) symmetrically slidably arranged at the bottom of the linear driving table (9), and an inlet (141) is opened on the T-shaped locking block (14); a T-shaped top block (142) penetrates into the linear driving table (9) from the side wall thereof and passes through the inlet (141); a screw rod (143) is helically penetrated through the T-shaped top block (142) and rotatably connected to the linear driving table (9).

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