An automatic loading and unloading device for a machining center

Abstract

The present invention relates to an automatic loading and unloading device for a machining center, which comprises a machining center and a cabinet. Inside the cabinet, there are a tooling plate support, a material feeding and taking, a flipping, and a cleaning and drying mechanism. The moving tooling plate on the tooling plate support mechanism loads workpieces. The material feeding and taking mechanism can rotate and extend, and is used for the transfer of the tooling plate between the support mechanism, the machining center, and the flipping mechanism. After the flipping mechanism flips the tooling plate by 180°, the cleaning and drying mechanism cleans and dries the workpieces, timely clears debris and coolant, avoids secondary processes, ensures product quality, prevents workpiece collision and mixing. The operator only needs to operate externally, without entering the interior of the machining center, staying away from dangerous components, ensuring safety, reducing the work intensity, and improving the machining efficiency. In addition, this device is adapted to various types of machining equipment and workpieces, avoids the limitations of robotic arm automatic loading and unloading, is suitable for various automatic loading and unloading requirements, and improves the flexibility and production efficiency of the machining center.

Description

Technical Field

[0001] The present invention relates to the technical field of machining, and specifically to an automatic loading and unloading device for a machining center. Background Art

[0002] In the field of machining, various machining equipment is used, such as machining centers, drilling centers, stamping equipment, etc. Currently, most machining equipment still adopts the mode of one operator per machine, manual loading and unloading, and secondary process cleaning and drying of workpieces. This requires high skills from operators, involves high labor intensity, low machining efficiency, cumbersome processes, high labor costs, and also poses certain safety hazards.

[0003] In addition, due to the influence of manual operation, the consistency of machined products is poor. The increase in secondary process cleaning and drying of workpieces leads to higher costs for factory land and equipment investment. Moreover, during the secondary transfer process of products, problems such as workpiece collision and material mixing are likely to occur, resulting in the inability to guarantee product quality.

[0004] Although some machining equipment is equipped with robotic arms to achieve automatic loading and unloading, that is, the robotic arm is used to send the workpiece to be machined into the machining area of the machining equipment, such as the machining area of a numerically controlled machine tool, and remove the machined workpiece. However, the working range of the robotic arm for loading and unloading is relatively small. Moreover, existing numerically controlled machine tools are usually of a closed structure, with only a small machine door available for opening. The internal machining components (cutting tools) are relatively precise, and the space available for the robotic arm to perform loading and unloading is very limited. It often needs to be customized according to the external dimensions and structure of the numerically controlled machine tool, which means that the robotic arm can only be applicable to numerically controlled machine tools with specific dimensions and structures, and has poor versatility. Summary of the Invention

[0005] The purpose of the present invention is to overcome the defects and deficiencies existing in the prior art, and provide an automatic loading and unloading device for a machining center to automatically realize the loading, machining, cleaning, drying, and unloading of workpieces.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] An automatic loading and unloading device for a machining center, comprising a machining center and a cabinet located on one side of the machining center, characterized in that: inside the cabinet, a tooling plate support mechanism, a material feeding and taking mechanism, and a flipping mechanism are sequentially installed from one side to the other side. A movable tooling plate is provided on the tooling plate support mechanism for loading workpieces. A cleaning and drying mechanism is installed inside the cabinet below the flipping mechanism. The material feeding and taking mechanism can rotate and extend. On the one hand, it conveys the tooling plate from the tooling plate support mechanism to the machining center. On the other hand, it takes out the tooling plate from the machining center and conveys it to the flipping mechanism. On the third hand, it conveys the tooling plate from the flipping mechanism to the tooling plate support mechanism. After the flipping mechanism flips the tooling plate by 180°, the cleaning and drying mechanism cleans and dries the workpieces on the tooling plate;

[0008] A control unit is installed inside the cabinet, and a human-machine interface electrically connected to the control unit is installed on the panel of the cabinet;

[0009] The tooling plate support mechanism includes two support frames, which are respectively fixedly installed on the inner walls on both sides at one end of the cabinet and are arranged oppositely. A first roller group is installed on each support frame along the length direction. The tooling plate is supported on the first roller groups on both sides, and a female buckle is fixedly connected to the front end of the tooling plate;

[0010] A platform is fixedly connected to the middle inside the cabinet. The material feeding and taking mechanism includes a rotating table, a track, a walking table, a support table, and a pushing and pulling member. The rotating table is rotatably installed on the platform. The track is fixed on the rotating table. The walking table is installed on the track and can walk along the track. The support table is fixed on the walking table. Second roller groups are respectively installed on both sides of the support table along the length direction. The pushing and pulling member can move horizontally along the length direction of the support table, and a male buckle matched with the female buckle is fixedly connected to the front side of the pushing and pulling member.

[0011] Further, a first pneumatic fixture electrically connected to the control unit is installed on the outside of each support frame for locking the tooling plate between the two support frames on both sides. A proximity switch electrically connected to the control unit is installed on the inner wall of the cabinet on the side facing the rear of the tooling plate.

[0012] Further, a first driving motor electrically connected to the control unit is installed at the bottom of the platform. The output shaft of the first driving motor penetrates upward through the platform and is installed with a driving gear. A driven gear meshing with the driving gear is installed on the bottom surface of the rotating table.

[0013] Furthermore, a screw rod extending along its length direction is rotatably installed on one side of the support platform, and a second drive motor for driving the screw rod to rotate forward and reverse is installed, the second drive motor is electrically connected to the control unit, and a guide rod extending along its length direction is fixedly installed on the other side of the support platform. After the push-pull member spans the width direction of the support platform, it is installed on the screw rod by threaded fit on the one hand, and is installed on the guide rod by sliding fit on the other hand.

[0014] Furthermore, the flipping mechanism includes two flipping support frames, which are respectively and correspondingly mounted on the inner walls on both sides of the other end of the cabinet and are arranged opposite to each other, and each flipping support frame is provided with an upper roller group and a lower roller group along the length direction for clamping the tooling plate, and a stop block is fixedly connected to the end of each flipping support frame; a water pool is installed inside the cabinet below the two flipping support frames, and the cleaning and drying mechanism includes a first nozzle group for spraying water upward and a second nozzle group for spraying air upward, the first nozzle group and the second nozzle group are both installed in the water pool, and solenoid valves electrically connected to the control unit are installed in the pipelines of the first nozzle group and the second nozzle group.

[0015] Furthermore, a second pneumatic clamp electrically connected to the control unit is installed on the outer side of each flip support frame, which is used to lock the tooling plate between the two flip support frames on both sides; a dual-axis motor electrically connected to the control unit is installed at the bottom of the cabinet, and the two output shafts of the dual-axis motor are respectively connected to the two flip support frames for transmission.

[0016] Furthermore, the shell of the machining center is provided with a feed port and a lifting door on a side facing the feeding and taking mechanism, and the lifting door is driven to rise and fall by an oil cylinder, and the oil cylinder is electrically connected to the control unit.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention uses a tooling board to load workpieces, and a feeding and unloading mechanism is adopted to transfer the workpieces to be processed to a machining center, and transfer the processed workpieces out of the machining center and to a flipping mechanism. After the workpiece is flipped 180° by the flipping mechanism, the cleaning and drying mechanism below cleans and dries the workpiece, timely clears debris and coolant, and no secondary process is required, which not only ensures the product quality, but also does not cause problems such as workpiece collision and material mixing. The operator only needs to perform loading and unloading operations outside the machining center, without entering for fixing, clamping, etc., staying away from the cutting tools and rotating parts, ensuring safety, and there is no need to carry heavy tooling boards, reducing the working intensity and improving the processing efficiency. In addition, it can avoid the problem of limited automatic loading and unloading by robotic arms, and is suitable for automatic loading and unloading of various types of machining equipment and various workpieces including new energy vehicle parts and medical device parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of the present invention.

[0020] Figure 2 It is a schematic partial structure of the present invention Figure 1 .

[0021] Figure 3 It is a schematic partial structure of the present invention Figure 2 .

[0022] Figure 4 It is a schematic structural diagram of the tooling board supporting mechanism in the present invention.

[0023] Figure 5 It is a schematic structure of the feeding and unloading mechanism in the present invention Figure 1 .

[0024] Figure 6 It is a schematic structure of the feeding and unloading mechanism in the present invention Figure 2 .

[0025] Figure 7 It is a schematic structural diagram of the flipping mechanism in the present invention.

[0026] Figure 8 It is a schematic structural diagram of the tooling board in the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0028] SeeFigure 1-8 , An automatic loading and unloading device for a machining center, comprising a machining center 1 and a cabinet 2 located on one side of the machining center 1. Inside the cabinet 2, a tooling plate supporting mechanism 3, a material feeding and taking mechanism 4, and a flipping mechanism 5 are sequentially installed from one side to the other side. A movable tooling plate 6 is provided on the tooling plate supporting mechanism 3 for loading workpieces. Inside the cabinet 2, a cleaning and drying mechanism (not shown in the figure) is installed below the flipping mechanism 5. The material feeding and taking mechanism 4 can rotate and extend. On the one hand, it transports the tooling plate 6 from the tooling plate supporting mechanism 3 to the machining center 1. On the other hand, it takes out the tooling plate 6 from the machining center 1 and transports it to the flipping mechanism 5. On the third hand, it transports the tooling plate 6 from the flipping mechanism 5 to the tooling plate supporting mechanism 3. After the flipping mechanism 5 flips the tooling plate 6 by 180°, the cleaning and drying mechanism cleans and dries the workpieces on the tooling plate 6.

[0029] In the present invention, a control unit (not shown in the figure) is installed inside the cabinet 2, and a human-machine interaction interface 7 electrically connected to the control unit is installed on the panel of the cabinet 2 for information interaction with the control unit.

[0030] In the present invention, the tooling plate supporting mechanism 3 includes two support frames 31, which are respectively fixedly installed on the inner walls on both sides of one end of the cabinet 2 and are arranged oppositely. A first roller group 32 is installed on each support frame 31 along the length direction. The tooling plate 6 is supported on the first roller groups 32 on both sides, and a female buckle 8 is fixedly connected to the front end of the tooling plate 6.

[0031] Thus, by setting two support frames 31 and the first roller group 32, it can not only support the tooling plate 6 but also realize the movement of the tooling plate 6, that is, transfer.

[0032] In the present invention, a first pneumatic clamp 9 electrically connected to the control unit is installed on the outside of each support frame 31. Under the control of the control unit, it realizes locking the tooling plate 6 between the two support frames 31 on both sides. A proximity switch (not shown in the figure) electrically connected to the control unit is installed on the inner wall of the cabinet 2 on the side facing the rear of the tooling plate 6 to detect the in-place signal of the tooling plate 6 and transmit it to the control unit.

[0033] In the present invention, a platform 10 is fixedly connected to the middle inside the cabinet 2. The material feeding and taking mechanism 4 includes a rotating table 41, a track 42, a walking table 43, a supporting table 44, and a pushing and pulling member 45. The rotating table 41 is rotatably installed on the platform 10. The track 42 is fixed on the rotating table 41. The walking table 43 is installed on the track 42 and can walk along the track 42. The supporting table 44 is fixed on the walking table 43. Second roller groups 46 are respectively installed on both sides of the supporting table 44 along the length direction to realize the transfer of the tooling plate 6. The pushing and pulling member 45 can move horizontally along the length direction of the supporting table 44, and a male buckle 11 matching with the female buckle 8 is fixedly connected to the front side of the pushing and pulling member 45.

[0034] In the present invention, a first driving motor 12 electrically connected to the control unit is installed at the bottom of the platform 10. Under the control of the control unit, the output shaft of the first driving motor 12 penetrates the platform 10 upward and is installed with a driving gear 13, and a driven gear 14 meshing with the driving gear 13 is installed on the bottom surface of the rotating table 41.

[0035] Thus, by controlling the first driving motor 12 through the control unit, the rotating table 41 is driven to rotate (including forward rotation and reverse rotation) on the platform 10, thereby driving the supporting table 44 and the pushing and pulling member 45 to rotate. In addition, by the walking table 43 walking along the track 42, that is, performing telescoping, and the pushing and pulling member 45 performing lateral movement along the length direction of the supporting table 44, the transfer of the tooling plate 6 between the machining center 1, the tooling plate supporting mechanism 3 and the flipping mechanism 5 is realized, so as to realize the loading and unloading of workpieces.

[0036] In the present invention, a lead screw 15 extending along its length direction is rotatably installed on one side of the supporting table 44, and a second driving motor (not shown in the figure) for driving the lead screw 15 to perform forward and reverse rotation is installed, and the second driving motor is electrically connected to the control unit. Under the control of the control unit, a guide rod 16 extending along its length direction is fixedly installed on the other side of the supporting table 44. After the pushing and pulling member 45 straddles the width direction of the supporting table 44, on the one hand, it is installed on the lead screw 15 through threaded fit, and on the other hand, it is installed on the guide rod 16 through sliding fit.

[0037] Thus, by controlling the second driving motor through the control unit to drive the lead screw 15 to perform forward and reverse rotation, the pushing and pulling member 45 is enabled to perform lateral movement (including forward movement and backward movement) along the lead screw 15 and the guide rod 16, and perform lateral movement along the length direction of the supporting table 44, so as to realize the pushing and pulling of the tooling plate 6.

[0038] In the present invention, the flipping mechanism 5 includes two flipping support frames 51. The two flipping support frames 51 are respectively rotatably installed on the inner walls of both sides at the other end of the cabinet 2 and are arranged oppositely. An upper roller group and a lower roller group 52 are installed on each flipping support frame 51 along the length direction for clamping the tooling plate 6. A stop block 53 is fixedly connected to the end of each flipping support frame 51 for limiting the tooling plate 6; a water tank 17 is installed inside the cabinet 2 below the two flipping support frames. The cleaning and drying mechanism includes a first nozzle group (not shown in the figure) for spraying water upward and a second nozzle group (not shown in the figure) for spraying air upward. The first nozzle group and the second nozzle group are both installed in the water tank 17, and electromagnetic valves (not shown in the figure) electrically connected to the control unit are installed in the pipelines of the first nozzle group and the second nozzle group, so that the first nozzle group and the second nozzle group are both controlled by the control unit.

[0039] In the present invention, a second pneumatic clamp (not shown in the figure) electrically connected to the control unit is installed on the outer side of each flip support frame 51, which is controlled by the control unit and is used to lock the tooling plate 6 between the two flip support frames 51 on both sides; a dual-axis motor 18 electrically connected to the control unit is installed at the bottom of the cabinet 2, and the two output shafts of the dual-axis motor 18 are respectively connected to the two flip support frames 51 for transmission.

[0040] Therefore, the control unit controls the dual-axis motor 18 to drive the two flip support frames 51 to rotate forward and reverse, so as to flip the tooling plate 6 upward and downward by 180°, so that it faces upward and downward.

[0041] In the present invention, the shell of the machining center 1 is provided with a feed port and a lifting door 19 on the side facing the feeding and picking mechanism 4. The lifting door 19 is driven to rise and fall by a cylinder 20. The cylinder 20 is electrically connected to the control unit and is opened and closed by the control unit.

[0042] The present invention will be further described below with reference to the accompanying drawings:

[0043] The tooling plates 6 used in the present invention include two pieces, namely, tooling plate A and tooling plate B, both of which are provided with a clamping groove for clamping a workpiece and matching with the workpiece.

[0044] In the initial state, the tooling plate A is located between the two support frames 31 and supported by the first roller group 32, and the tooling plate B is located between the two flip support frames 51 and limited and supported by the upper roller group and the lower roller group 52, and is set upward. At this time, the first pneumatic clamp 9 and the second pneumatic clamp lock the tooling plate A and the tooling plate B respectively.

[0045] When in use, the operator inserts the workpiece to be processed into the slot on the tooling plate A, and then the operator starts the entire loading and unloading device by pressing the control button on the human-machine interaction interface 7.

[0046] Next, the first drive motor 12 drives the rotating table 41 to rotate, so that the support platform 44 and the push-pull member 45 face the tooling plate supporting mechanism 3, and the second drive motor drives the screw rod 15 to rotate forward, and the push-pull member 45 moves forward until the male buckle 11 is inserted into the female buckle 8.

[0047] Then, the first pneumatic clamp 9 is unlocked, the second drive motor drives the screw rod 15 to reverse, the push-pull member 45 retreats, and the tooling plate A is pulled onto the support platform 44 .

[0048] Then, the first drive motor 12 drives the rotating table 41 to rotate 90° clockwise, so that the support platform 44 and the push-pull member 45 face the lifting door 19, and the control unit then drives the lifting door 19 to lift by controlling the oil cylinder 20 to open the feed port.

[0049] Then, the walking platform 43 advances along the track 42 and extends. Next, the second drive motor drives the lead screw 15 to rotate forward, and the pushing and pulling member 45 advances until the tooling plate A is pushed onto the workbench of the machining center 1, and the locking tooling on it immediately locks the tooling plate A.

[0050] Then, the walking platform 43 and the pushing and pulling member 45 retreat successively, and the male buckle 11 is separated from the female buckle 8.

[0051] After exiting the feed inlet, the control unit drives the lifting door 19 to descend through the control of the oil cylinder 20 to close the feed inlet, and then the machining center 1 can be started to perform corresponding machining on the workpiece on the tooling plate A.

[0052] Then, the first drive motor 12 drives the rotary table 41 to rotate clockwise by 90° again, so that the support table 44 and the pushing and pulling member 45 face the flipping mechanism 5. The second drive motor drives the lead screw 15 to rotate forward, and the pushing and pulling member 45 advances until the male buckle 11 is inserted into the female buckle 8.

[0053] Then, the second pneumatic fixture is unlocked, and the second drive motor drives the lead screw 15 to rotate reversely, and the pushing and pulling member 45 retreats to pull the tooling plate A onto the support table 44.

[0054] Then, the first drive motor 12 drives the rotary table 41 to rotate counterclockwise by 180°, so that the support table 44 and the pushing and pulling member 45 face the tooling plate supporting mechanism 3. Next, the second drive motor drives the lead screw 15 to rotate forward, and the pushing and pulling member 45 advances until the tooling plate B is pushed between the two support frames 31. When the proximity switch detects that the tooling plate B is in place, the control unit immediately controls the first pneumatic fixture 9 to lock the tooling plate B.

[0055] At this time, the operator can insert the workpieces to be processed in the next batch into the card slots on the tooling plate B and wait for processing.

[0056] When the machining center 1 finishes machining the workpiece on the tooling plate A, the lifting door 19 rises to open the feed inlet. The feeding and taking mechanism 4 pulls the tooling plate A from the machining center 1 according to the above process and pushes it between the two flipping support frames 51, and the second pneumatic fixture on it immediately locks the tooling plate A.

[0057] Then, the first drive motor 12 drives the rotary table 41 to rotate counterclockwise by 180° again, so that the support table 44 and the pushing and pulling member 45 face the tooling plate supporting mechanism 3, and the tooling plate B is pushed onto the workbench of the machining center 1 according to the above process to perform corresponding machining.

[0058] In addition, the control unit controls the biaxial motor 18 to drive the two tilting supports 51 to reverse, tilting the tooling plate A downward by 180° so that it faces downward. Then, the control unit controls the first nozzle group and the second nozzle group to work successively to clean and dry the processed workpiece.

[0059] After the cleaning and drying are completed, the loading and unloading mechanism 4 pulls the tooling plate A according to the above process by the turning mechanism 5 and pushes it between the two supports 31, and the first pneumatic clamp 9 thereon immediately locks the tooling plate A.

[0060] After the operator takes out the processed workpiece, the workpieces to be processed in the subsequent batches are clamped into the card slots on the tooling plate A and wait for processing.

[0061] The above process is cycled to successively implement the feeding, processing, cleaning, drying, and unloading of the workpieces.

[0062] It should be noted that the automatic loading and unloading device of the present invention can be adapted to the processing of new energy vehicle parts, medical device parts, and the processing of parts of ships, aerospace, and military enterprises, etc. It can achieve energy conservation and consumption reduction, improve production efficiency, reduce the working intensity of operators, and can provide reliable safety protection.

[0063] Although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0064] Therefore, the above description is only the preferred embodiment of the present application and is not used to limit the scope of implementation of the present application; that is, all equivalent transformations made according to the scope of the claims of the present application are within the protection scope of the claims of the present application.

Claims

1. An automatic loading and unloading device for a machining center, comprising a machining center and a cabinet located on one side of the machining center, characterized in that: The interior of the cabinet is sequentially installed with a tooling plate supporting mechanism, a feeding and taking mechanism and a turning mechanism from one side to the other. The tooling plate supporting mechanism is provided with a movable tooling plate for loading workpieces. The interior of the cabinet is provided with a cleaning and drying mechanism below the turning mechanism. The feeding and taking mechanism can rotate and retract. On the one hand, the tooling plate is transferred from the tooling plate supporting mechanism to the machining center. On the other hand, the tooling plate is taken out from the machining center and transferred to the turning mechanism. On the other hand, the tooling plate is transferred from the turning mechanism to the tooling plate supporting mechanism. After the turning mechanism turns the tooling plate 180°, the cleaning and drying mechanism cleans and dries the workpiece on the tooling plate. A control unit is installed inside the cabinet, and a human-machine interaction interface electrically connected to the control unit is installed on the panel of the cabinet; The tooling board supporting mechanism includes two support frames, which are respectively fixedly mounted on the inner walls on both sides of one end of the cabinet and arranged opposite to each other, and each support frame is equipped with a first roller group along the length direction, and the tooling board is supported on the first roller groups on both sides, and the front end of the tooling board is fixedly connected with a female buckle; A platform is fixedly connected to the middle part of the cabinet body, and the feeding and retrieving mechanism includes a rotating table, a track, a walking platform, a supporting platform and a push-pull member. The rotating table is rotatably installed on the platform, the track is fixed on the rotating table, the walking platform is installed on the track and can move along the track, the supporting platform is fixed on the walking platform, and second roller groups are respectively installed on both sides of the supporting platform along the length direction. The pushing and pulling member can move laterally along the length direction of the supporting platform, and the front side of the pushing and pulling member is fixedly connected with a male buckle matching the female buckle.

2. The automatic loading and unloading device of a machining center according to claim 1, characterized in that: A first pneumatic clamp electrically connected to the control unit is installed on the outer side of each support frame for locking the tooling plate between the two support frames on both sides. A proximity switch electrically connected to the control unit is installed on the inner wall of the cabinet on the side facing the rear side of the tooling plate.

3. The automatic loading and unloading device of a machining center according to claim 1, characterized in that: A first driving motor electrically connected to the control unit is installed at the bottom of the platform, the output shaft of the first driving motor passes through the platform upward and is installed with a driving gear, and a driven gear meshing with the driving gear is installed on the bottom surface of the rotating table.

4. The automatic loading and unloading device of a machining center according to claim 1, characterized in that: A lead screw extending along its length direction is rotatably installed on one side of the support platform, and a second drive motor for driving the lead screw to rotate forward and reverse is installed, the second drive motor is electrically connected to the control unit, and a guide rod extending along its length direction is fixedly installed on the other side of the support platform. After the push-pull member spans the width direction of the support platform, it is installed on the lead screw by threaded fit on the one hand, and is installed on the guide rod by sliding fit on the other hand.

5. The automatic loading and unloading device of a machining center according to claim 1, characterized in that: The flipping mechanism includes two flipping support frames, which are respectively and correspondingly mounted on the inner walls on both sides of the other end of the cabinet and are arranged opposite to each other. An upper roller group and a lower roller group are installed on each flipping support frame along the length direction for clamping the tooling plate, and a stop block is fixedly connected to the end of each flipping support frame; a water pool is installed inside the cabinet below the two flipping support frames, and the cleaning and drying mechanism includes a first nozzle group for spraying water upward and a second nozzle group for spraying air upward, the first nozzle group and the second nozzle group are both installed in the water pool, and solenoid valves electrically connected to the control unit are installed in the pipelines of the first nozzle group and the second nozzle group.

6. The automatic loading and unloading device of a machining center according to claim 5, characterized in that: A second pneumatic clamp electrically connected to the control unit is installed on the outer side of each flip support frame, which is used to lock the tooling plate between the two flip support frames on both sides; a dual-axis motor electrically connected to the control unit is installed at the bottom of the cabinet, and the two output shafts of the dual-axis motor are respectively connected to the two flip support frames for transmission.

7. The automatic loading and unloading device of a machining center according to claim 1, characterized in that: The housing of the machining center is provided with a feeding port and a lifting door on a side facing the feeding and taking mechanism. The lifting door is driven to rise and fall by an oil cylinder, and the oil cylinder is electrically connected to the control unit.

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