Machining center with automatic feeding and discharging functions

Abstract

The utility model belongs to the technical field of machining, and particularly relates to an automatic feeding and discharging machining center. Comprising a vertical machining center which is provided with a workbench. The device further comprises a feeding mechanism and a clamping and rotating mechanism. The clamping and rotating mechanism is arranged on the workbench and comprises an overturning mechanism, an overturning plate and a pressing assembly. The turnover mechanism is arranged on the workbench and drives the turnover plate to rotate around the horizontal shaft; a positioning plate is arranged on one side of the turnover plate, and a plurality of positioning cavities are formed in the positioning plate; the pressing assembly is arranged on one side of the overturning plate and located on the top layer of the positioning cavity. The feeding mechanism comprises a supporting seat, a telescopic piece, a mounting plate and a positioning piece; the supporting seat is arranged at one end of the workbench, the telescopic piece is arranged on the supporting seat, the mounting plate is connected with the telescopic end of the telescopic piece, and the multiple positioning pieces are arranged on the side, facing the overturning plate, of the mounting plate. The machining center capable of achieving automatic feeding and discharging can machine a plurality of workpieces at a time, machining efficiency is effectively improved, the clamping frequency is reduced, and machining cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of processing, and in particular relates to a processing center for automatic loading and unloading. Background Art

[0002] Machining using machining centers to process workpieces is a very common processing method in the current mechanical processing field. Currently, in the shoemaking industry, machining centers are also widely used to process shoe molds. When using machining centers to process shoe molds, it is usually necessary to use shoe mold fixtures to fix them, and then use tools to process the shoe molds one by one.

[0003] For example, the Chinese patent document with publication number CN207508844U discloses a shoe mold special processing center, including a base, a workbench, a spindle, a shoe mold tooling and a tool setting device, the workbench is arranged above the base, the shoe mold tooling is arranged above the workbench, the shoe mold tooling includes a base, a fixed block, and a shoe mold mounting block, two shoe mold mounting blocks are provided, and they are arranged on both sides of the fixed block, the spindle is arranged above the shoe mold tooling, and a spindle bracket is arranged on the outside of the spindle, a tool is arranged below the spindle, and a proximity switch is arranged on the rear side of the tool, and the upper end of the proximity switch is in contact with the spindle. The main shaft bracket is connected, a Z-axis rail frame is arranged on the rear side of the main shaft bracket, a Z-axis lead screw is arranged on the inner side of the Z-axis rail frame, a Z-axis motor is arranged on the upper end of the Z-axis lead screw, an X-axis lead screw is arranged on the rear side of the Z-axis rail frame, an X-axis motor is arranged on the left end of the X-axis lead screw, a Y-axis lead screw is arranged below the workbench, a Y-axis motor is arranged at the front end of the Y-axis lead screw, lead screw guide blocks are arranged in the middle of the X-axis lead screw, the Y-axis lead screw and the Z-axis lead screw, and a limit block is arranged at one end of the three, and a tool setting device is arranged on the left side of the workbench, and the tool setting device includes a support, a shield, a cylinder, and an automatic tool setting instrument. By adopting the shoe mold tooling, the shoe mold is clamped quickly, two shoe mold mounting blocks are set, and the positioning is achieved through the positioning surface and the fixed block at the front end thereof, and they are clamped by the cylinder. When processing the shoe mold on one shoe mold mounting block, the shoe mold of another shoe mold mounting block is clamped in the idle time. After processing, the fixed block is driven to rotate by the motor and replaced with the unprocessed shoe mold.

[0004] In the technical solution of the above patent document, when clamping the shoe mold, the shoe mold tooling and two shoe mold mounting holes are used, and the positioning and cylinder clamping are achieved through the positioning surface at the front end of the mounting block and the fixed block. When the machining center processes the shoe mold of one shoe mold mounting block, the operator needs to install the shoe mold to be processed of another shoe mold mounting block. After the processing is completed, the fixed block is driven by the motor to rotate and replaced with the unprocessed shoe mold, and then the processed shoe mold is removed and another shoe mold to be processed is installed. Therefore, this shoe mold-specific machining center can only process one shoe mold at a time, and the production efficiency is low. Utility Model Content

[0005] The utility model aims to provide a machining center with automatic loading and unloading, so as to solve the problem of low production and machining efficiency of the existing machining center.

[0006] To achieve the above-mentioned purpose, an embodiment of the utility model provides an automatic loading and unloading machining center, including a vertical machining center, the vertical machining center having a workbench; also including a loading mechanism and a clamping and rotating mechanism; the clamping and rotating mechanism is arranged on the workbench, the clamping and rotating mechanism includes a flipping mechanism, a flipping plate and a clamping assembly; the flipping mechanism is arranged on the workbench, the flipping plate is connected to the rotating end of the flipping mechanism, and the flipping mechanism drives the flipping plate to rotate around a horizontal axis; a positioning plate is provided on one side of the flipping plate, a plurality of positioning cavities are provided on the positioning plate, and the positioning cavities Used to position the workpiece to be processed; the clamping assembly is arranged on one side of the flip plate and located on the top layer of the positioning cavity, and is used to clamp the workpiece arranged in the positioning cavity; the feeding mechanism includes a support seat, a telescopic member, a mounting plate and a positioning member; the support seat is arranged at one end of the workbench, the telescopic member is arranged on the support seat, the mounting plate is connected to the telescopic end of the telescopic member, and a plurality of positioning members are arranged on the side of the mounting plate facing the flip plate, the positioning member positions the workpiece to be processed, and the telescopic member is used to push the workpiece on the positioning member to be positioned in the corresponding positioning cavity. Furthermore, the number of the clamping assemblies is consistent with the number of the positioning cavities, and a clamping assembly is arranged on the top side of each positioning cavity, so that each clamping assembly independently clamps the workpiece in the corresponding positioning cavity.

[0007] Furthermore, the clamping assembly includes a mounting seat, a cylinder and a pressure block; the mounting seat is arranged on the flipping side, and a first connecting part and a second connecting part extend from both ends of the mounting plate. The top end of the cylinder is provided with a connecting piece rotatably connected to the first connecting part, the pressure block is rotatably connected to the second connecting part, and the telescopic end of the cylinder is rotatably connected to one end of the pressure block, so that the cylinder drives the other end of the pressure block to swing up and down.

[0008] Furthermore, the workbench includes a saddle, a movable seat and a driving member, the saddle is arranged on the base of the vertical machining center; the movable seat is slidably arranged on the top side of the saddle, and the driving member is connected to the movable seat for driving the movable seat to translate; the flipping mechanism is arranged on the movable seat; and the support seat is arranged at one end of the saddle.

[0009] Furthermore, the saddle has two support platforms extending upward, and a mounting groove is formed between the two support platforms. A conveyor belt is provided in the mounting groove, and the conveyor belt is used to receive the workpiece dropped into the positioning cavity; guide plates are also provided at both ends of the movable seat, and the lower end of the guide plate extends obliquely to the top of the conveyor belt.

[0010] Furthermore, a transfer belt is provided along the edge of the vertical machining center; the output end of the conveyor belt extends to the top of the transfer belt; the transfer mechanism includes a first transfer belt, a second transfer belt and a pushing mechanism; the first transfer belt and the second transfer belt are arranged in an L shape; the pushing mechanism is provided at the output end of the first transfer belt, and is used to push the workpiece to the second transfer belt; the pushing mechanism includes a baffle and a movable toggle member; the baffle is provided at the output end of the first transfer belt, and a chip removal gap is formed between the baffle and the conveying surface of the first transfer belt.

[0011] Furthermore, the workbench is also provided with a pushing mechanism for horizontally pushing the workpiece arranged in the positioning cavity.

[0012] Furthermore, the pushing mechanism includes two push cylinders and a pressure rod; the two push cylinders are symmetrically arranged on the back side of the moving seat, and the pressure rod connects the two push cylinders.

[0013] Furthermore, a plurality of connection grooves are provided on the positioning plate, a positioning seat is detachably provided in the connection groove, and the positioning seat is provided with the positioning cavity.

[0014] Furthermore, the vertical machining center includes multiple groups of vertical spindles and a horizontal spindle; the multiple groups of vertical spindles are arranged in sequence; and the horizontal spindle is arranged horizontally and lower than the vertical spindle.

[0015] The above one or more technical solutions in the automatic loading and unloading machining center provided by the embodiment of the utility model have at least the following technical effects:

[0016] The automatic loading and unloading machining center is provided with a loading mechanism and a clamping and rotating mechanism. The loading mechanism is provided with a plurality of positioning members, so the positioning members can position a plurality of workpieces to be processed at one time, and the telescopic members provided with the loading mechanism can push the workpieces on the positioning members to be positioned in a plurality of positioning cavities of the clamping and rotating mechanism. The positioning cavity positions the workpiece to be processed conveyed by the loading mechanism, and then the clamping assembly clamps the workpiece in the positioning cavity. The flipping mechanism drives the flipping plate to rotate, so that the workpiece in the positioning cavity is close to the vertical machining center, which is convenient for the vertical machining center to process a plurality of workpieces at one time, effectively improving the machining efficiency, reducing the number of clamping times, and reducing the machining cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 A three-dimensional schematic diagram of a machining center for automatic loading and unloading provided in an embodiment of the utility model.

[0019] Figure 2 Another stereoscopic schematic diagram of a machining center for automatic loading and unloading provided by an embodiment of the utility model.

[0020] Figure 3 A structural diagram of a loading mechanism for a machining center with automatic loading and unloading provided in an embodiment of the utility model.

[0021] Figure 4 A structural diagram of a clamping and rotating mechanism for a machining center with automatic loading and unloading provided in an embodiment of the utility model.

[0022] Figure 5 A partial structural diagram of a clamping and rotating mechanism for a machining center with automatic loading and unloading provided in an embodiment of the utility model.

[0023] Figure 6 This is a structural diagram of the other side of the clamping and rotating mechanism and the pushing mechanism of the machining center for automatic loading and unloading provided by an embodiment of the utility model.

[0024] Figure 7 A structural diagram of a machining center workbench for automatic loading and unloading provided in an embodiment of the utility model.

[0025] In the figure:

[0026] 100, vertical machining center, 110, vertical spindle, 120, horizontal spindle;

[0027] 200, workbench, 210, saddle, 211, support platform, 212, mounting groove, 220, moving seat, 230, driving member, 240, guide plate;

[0028] 300, feeding mechanism, 310, supporting seat, 320, telescopic member, 330, mounting plate, 340, positioning member;

[0029] 400, clamping rotation mechanism, 410, flip mechanism, 411, rotating end, 420, flip plate, 430, clamping assembly, 431, mounting seat, 432, cylinder, 433, pressing block, 434, first connecting part, 435, second connecting part, 436, connecting member, 440, positioning plate, 441, positioning cavity, 442, positioning seat, 443, connecting groove;

[0030] 500, conveyor belt, 510, first transfer belt, 520, second transfer belt, 530, pushing mechanism, 531, baffle, 532, toggle member;

[0031] 600, pushing mechanism, 610, horizontal push cylinder, 620, pressing rod;

[0032] 700. Base. DETAILED DESCRIPTION

[0033] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0034] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0035] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0036] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 or an electrical connection; 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 the embodiments of the present invention can be understood according to specific circumstances.

[0037] In one embodiment of the automatic loading and unloading machining center of the utility model, please refer to Figures 1 to 6. The automatic loading and unloading machining center can realize automatic loading and unloading, and complete the loading of multiple workpieces at one time, improve the efficiency of clamping, and thus improve the machining efficiency. Specifically, the automatic loading and unloading machining center of the present embodiment includes a vertical machining center 100, a loading mechanism 300 and a clamping and rotating mechanism 400, and the vertical machining center 100 has a workbench 200. The clamping and rotating mechanism 400 is arranged on the workbench 200, and the clamping and rotating mechanism 400 includes a flipping mechanism 410, a flip plate 420 and a clamping assembly 430. The flipping mechanism 410 is arranged on the workbench 200, and the flip plate 420 is connected to the rotating end 411 of the flipping mechanism 410, and the flipping mechanism 410 drives the flip plate 420 to rotate around the horizontal axis. Specifically, the flipping mechanism 410 is the fourth axis of the machining center, including an electric turntable and a rotating table, and the flipping plate 420 is connected to the rotating ends of the electric turntable and the rotating table. A positioning plate 440 is provided on one side of the flip plate 420, and a plurality of positioning cavities 441 are provided on the positioning plate 440, and the positioning cavity 441 is used to position the workpiece to be processed. The clamping assembly 430 is provided on one side of the flip plate 420 and is located at the top layer of the positioning cavity 441, and is used to clamp the workpiece set in the positioning cavity 441. The feeding mechanism 300 includes a support seat 310, a telescopic member 320, a mounting plate 330 and a positioning member 340. The support seat 310 is provided at one end of the workbench 200, the telescopic member 320 is provided on the support seat 310, the mounting plate 330 is connected to the telescopic end of the telescopic member 320, and a plurality of positioning members 340 are provided on the side of the mounting plate 330 facing the flip plate 420, the positioning member 340 positions the workpiece to be processed, and the telescopic member 320 is used to push the workpiece on the positioning member 340 to be positioned in the corresponding positioning cavity. In this embodiment, since a feeding mechanism 300 and a clamping and rotating mechanism 400 are provided, and the feeding mechanism 300 is provided with a plurality of positioning members 340, the positioning members 340 can position a plurality of workpieces to be processed at one time, and the workpieces to be processed can be positioned on each positioning member 340 first. The telescopic member 320 on the feeding mechanism 300 can push the workpiece on the positioning member 340 to be positioned in a plurality of positioning cavities 441 of the clamping and rotating mechanism 400, and the positioning cavity 441 positions the workpiece to be processed conveyed by the feeding mechanism 300, and then the clamping assembly 430 clamps the workpiece in the positioning cavity 441, so that the workpiece to be processed is positioned in the positioning cavity 441. The flipping mechanism 410 drives the flipping plate 420 to rotate, so that the position of the workpiece in the positioning cavity 441 that needs to be processed faces the spindle of the vertical machining center 100, so that the vertical machining center 100 can process a plurality of workpieces at one time, effectively improve the machining efficiency, reduce the number of clamping times, and reduce the machining cost.

[0038] Furthermore, the number of the clamping assemblies 430 is consistent with the number of the positioning cavities 441, and a clamping assembly 430 is disposed on the top side of each positioning cavity 441, so that each clamping assembly 430 independently clamps the workpiece in the corresponding positioning cavity 441. In this embodiment, since the same number of clamping assemblies 430 and positioning cavities 441 are disposed and each clamping assembly 430 is disposed on the top side of the corresponding positioning cavity 441, it is convenient for each clamping assembly 430 to independently clamp the workpiece in the corresponding positioning cavity 441, and if one of the clamping assemblies 430 fails, it does not affect the continued operation of other clamping assemblies 430.

[0039] Furthermore, the clamping assembly 430 includes a mounting seat 431, a cylinder 432 and a pressure block 433; the mounting seat 431 is arranged on one side of the flip plate 420, and a first connecting part 434 and a second connecting part 435 are extended at both ends of the mounting seat 431, and a connecting piece 436 rotatably connected to the first connecting part 434 is provided at the top end of the cylinder 432, the pressure block 433 is rotatably connected to the second connecting part 435, and the telescopic end of the cylinder 432 is rotatably connected to one end of the pressure block 433, so that the cylinder 432 drives the other end of the pressure block 433 to swing up and down. In this embodiment, since the pressure block 433 is rotatably connected to the second connection portion 435 of the mounting seat 431, and the telescopic end of the cylinder 432 is rotatably connected to one end of the pressure block 433, before flipping, when the cylinder 432 drives the telescopic end, one end of the pressure block 433 swings downward, thereby pressing the workpiece in the positioning cavity 441; and the connecting piece 436 provided at the top of the cylinder 432 is rotatably connected to the first connection portion 434 of the mounting seat 431. During the flipping process, the telescopic end of the cylinder 432 and the center of the pressure block 433 can be maintained at the same point, thereby ensuring that during the flipping process, the telescopic end of the cylinder 432 can always press the pressure block 433, thereby avoiding the problem that the pressure block 433 becomes loose and causes the workpiece in the positioning cavity 441 to fall off.

[0040] Further, the workbench 200 includes a saddle 210, a moving seat 220 and a driving member 230. The saddle 210 is disposed on the base 700 of the vertical machining center 100. The moving seat 220 is slidably disposed on the top side of the saddle 210, and the driving member 230 is connected to the moving seat 220 to drive the moving seat 220 to translate. The flip mechanism 410 is disposed on the moving seat 220; and the support seat 310 is disposed at one end of the saddle 210. In this embodiment, since the driving member 230 is connected to the moving seat 220, the moving seat 220 can slide on the top side of the saddle 210, and the flip mechanism 410 is arranged above the moving seat 220. When the driving member 230 drives the moving seat 220 to translate on the top side of the saddle 210, the flip mechanism 410 above the moving seat 220 also translates, and drives the clamping and rotating mechanism 400 to translate together, and the workpiece in the positioning cavity 441 in the clamping and rotating mechanism 400 can be moved close to the vertical machining center 100, so that the processing of the workpiece can be completed. Further, the saddle 210 is detachably connected to the base, which is convenient for disassembly and transportation. Specifically, the driving member 230 is an electric screw mechanism or a driving member formed by a motor, a gear and a rack. The gear is driven by the motor to rotate, and under the meshing of the gear and the rack, the moving seat 220 can be driven to move back and forth on the saddle 210.

[0041] Furthermore, the saddle 210 has two support platforms 211 extending upward, and a mounting groove 212 is formed between the two support platforms 211. A conveyor belt 500 is provided in the mounting groove 212, and the conveyor belt 500 is used to receive the workpieces dropped in the positioning cavity 441 and the debris formed during processing. Guide plates 240 are also provided at both ends of the movable seat 220, and the lower end of the guide plate 240 extends obliquely to the top of the conveyor belt 500. In this embodiment, since a conveyor belt is provided in the mounting groove 212 formed between the support platforms 211, guide plates 240 are provided at both ends of the movable seat 220, and the lower end of the guide plate 240 extends obliquely to the top of the conveyor line 500, when the workpieces in the positioning cavity 441 are processed, the workpieces can all fall onto the conveyor line 500 along the direction of the guide plate 240, and be transported away by the conveyor line 500 to avoid accumulation on the saddle.

[0042] Furthermore, a transfer mechanism is provided along the edge of the workbench 200; the output end of the conveyor belt 500 extends above the transfer mechanism. The transfer mechanism includes a first transfer belt 510, a second transfer belt 520 and a push mechanism 530. The first transfer belt 510 and the second transfer belt 520 are arranged in an L shape; the push mechanism 530 is provided at the output end of the first transfer belt 510, and is used to push the workpiece to the second transfer belt 520. The push mechanism 530 includes a baffle 531 and a movable toggle member 532. The baffle 531 is provided at the output end of the first transfer belt 510, and a chip removal gap is formed between the baffle 531 and the conveying surface of the first transfer belt 531. In this embodiment, the workpiece and debris output from the conveyor belt 500 are transmitted to the first transfer belt 510. And the push mechanism 530 pushes the workpiece to the second transfer belt 520. Since the baffle 531 is arranged at the output end of the first rotating belt 510 and forms a chip removal gap with the conveying surface of the first transfer belt 531, the baffle 531 can block the processed workpiece and directly output the waste chips generated in the processing process from the conveying end of the first rotating belt 510, thereby separating the chips from the workpiece, making it easier to clean and collect the chips, reducing the manual operation of manual separation, and improving production efficiency.

[0043] Furthermore, a pushing mechanism 600 is provided on the workbench 200 for horizontally pushing the workpiece disposed in the positioning cavity 441. In this embodiment, after the workpiece is positioned in the positioning cavity 441 and turned 90°, the pushing mechanism 600 can be provided to further push the workpiece so that the workpiece is completely positioned in the positioning cavity 441, thereby avoiding the problem of poor processing of the workpiece due to the gap between the workpiece and the positioning cavity 411 and the misalignment of the workpiece.

[0044] Furthermore, the pushing mechanism 600 includes two horizontal push cylinders 610 and a pressure rod 620; the two horizontal push cylinders 610 are symmetrically arranged on the back side of the moving seat 442, and the pressure rod 620 connects the two horizontal push cylinders 610. In this embodiment, because the two horizontal push cylinders 610 are symmetrically arranged on the side of the moving seat 442, and the pressure rod 620 connects the two horizontal push cylinders 610, when the flip mechanism 410 rotates the flip plate 420, in order to avoid the clamping assembly 430 not fully clamping the workpiece in the positioning cavity 441, the two horizontal push cylinders 610 drive the pressure rod 620 to translate to further clamp the workpiece in the positioning cavity 441.

[0045] Furthermore, the positioning plate 440 is provided with a plurality of connection grooves 443, in which a positioning seat 442 is detachably provided, and the positioning cavity 441 is provided on the positioning seat 442. In this embodiment, since the connection grooves 443 provided on the positioning plate 440 are detachably provided with the positioning seat 442, different positioning seats 442 can be replaced, and then positioning cavities 441 of different sizes can be adjusted, so as to facilitate the processing of workpieces of different sizes.

[0046] Furthermore, the vertical machining center 100 includes a plurality of vertical spindles 110 and a horizontal spindle 120; the plurality of vertical spindles 110 are arranged in sequence; the horizontal spindle 120 is arranged horizontally and lower than the vertical spindle 110. In this embodiment, the horizontal spindle 120 can be a saw blade, and the vertical spindle 110 can be a milling cutter. The saw blade is used to cut the workpiece first, and then the milling cutter is used to process the workpiece in all directions. The processing efficiency is improved by combining two tool processings with different functions.

[0047] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A machining center for automatic loading and unloading, including a vertical machining center, wherein the vertical machining center has a workbench; characterized in that: It also includes a feeding mechanism and a clamping and rotating mechanism; the clamping and rotating mechanism is arranged on the workbench, and the clamping and rotating mechanism includes a flipping mechanism, a flip plate and a clamping assembly; the flipping mechanism is arranged on the workbench, the flip plate is connected to the rotating end of the flipping mechanism, and the flipping mechanism drives the flip plate to rotate around a horizontal axis; a positioning plate is provided on one side of the flip plate, and a plurality of positioning cavities are provided on the positioning plate, and the positioning cavity is used to position the workpiece to be processed; the clamping assembly is arranged on one side of the flip plate and is located at the top layer of the positioning cavity, and is used to clamp the workpiece set in the positioning cavity; the feeding mechanism includes a support seat, a telescopic member, a mounting plate and a positioning member; the support seat is arranged at one end of the workbench, the telescopic member is arranged on the support seat, the mounting plate is connected to the telescopic end of the telescopic member, and a plurality of positioning members are arranged on a side of the mounting plate facing the flip plate, the positioning member positions the workpiece to be processed, and the telescopic member is used to push the workpiece on the positioning member to be positioned in the corresponding positioning cavity.

2. The automatic loading and unloading machining center according to claim 1 is characterized in that: The number of the clamping assemblies is consistent with the number of the positioning cavities, and a clamping assembly is disposed on the top side of each positioning cavity, so that each clamping assembly independently clamps the workpiece in the corresponding positioning cavity.

3. The automatic loading and unloading machining center according to claim 2 is characterized in that: The clamping assembly includes a mounting seat, a cylinder and a pressure block; the mounting seat is arranged on one side of the flip plate, and a first connecting part and a second connecting part are extended at both ends of the mounting seat. The top of the cylinder is provided with a connecting piece rotatably connected to the first connecting part, the pressure block is rotatably connected to the second connecting part, and the telescopic end of the cylinder is rotatably connected to one end of the pressure block, so that the cylinder drives the other end of the pressure block to swing up and down.

4. The automatic loading and unloading machining center according to any one of claims 1 to 3, characterized in that: The workbench includes a saddle, a moving seat and a driving member. The saddle is arranged on the base of the vertical machining center; the moving seat is slidably arranged on the top side of the saddle, and the driving member is connected to the moving seat to drive the moving seat to translate; the flipping mechanism is arranged on the moving seat; and the supporting seat is arranged at one end of the saddle.

5. The automatic loading and unloading machining center according to claim 4 is characterized in that: The saddle is provided with two support platforms extending upward, and a mounting groove is formed between the two support platforms. A conveyor belt is provided in the mounting groove, and the conveyor belt is used to receive the workpiece dropped into the positioning cavity; guide plates are also provided at both ends of the movable seat, and the lower end of the guide plate extends obliquely to the top of the conveyor belt.

6. The automatic loading and unloading machining center according to claim 5 is characterized in that: A transfer mechanism is also provided along the edge of the vertical machining center; the output end of the conveyor belt extends to the top of the transfer mechanism; the transfer mechanism includes a first transfer belt, a second transfer belt and a pushing mechanism; the first transfer belt and the second transfer belt are arranged in an L shape; the pushing mechanism is provided at the output end of the first transfer belt, and is used to push the workpiece to the second transfer belt; the pushing mechanism includes a baffle and a movable toggle member; the baffle is provided at the output end of the first transfer belt, and a chip removal gap is formed between the baffle and the conveying surface of the first transfer belt.

7. The automatic loading and unloading machining center according to claim 4 is characterized in that: The workbench is also provided with a pushing mechanism for horizontally pushing the workpiece arranged in the positioning cavity.

8. The automatic loading and unloading machining center according to claim 7 is characterized in that: The pushing mechanism comprises two horizontal push cylinders and a pressure rod; the two horizontal push cylinders are symmetrically arranged on the back side of the moving seat, and the pressure rod connects the two horizontal push cylinders.

9. The automatic loading and unloading machining center according to any one of claims 1 to 3, characterized in that: The positioning plate is provided with a plurality of connection grooves, a positioning seat is detachably provided in the connection groove, and the positioning seat is provided with the positioning cavity.

10. The automatic loading and unloading machining center according to claim 1, characterized in that: The vertical machining center comprises a plurality of vertical spindles and a horizontal spindle; the plurality of vertical spindles are arranged in sequence; the horizontal spindle is arranged horizontally and is lower than the vertical spindle.

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