Pin positioning automatic feeding engraving machine

Abstract

The application discloses a pin positioning automatic feeding fine carving machine, which comprises a bed body, a moving workbench, a machining main shaft and a material taking and placing manipulator, and further comprises a material storage device, wherein the material storage device comprises a material storage seat, a positioning pin rod is arranged on the material storage seat, the material storage seat is provided with a lifting mechanism, a supporting plate is further arranged on the material storage seat, and the supporting plate can be gradually lifted along with the lifting rod to make the sheet materials on the supporting plate be separated from the top end of the positioning pin rod one by one; a positioning pin is arranged on the moving workbench, a lifting frame is arranged on the periphery of the moving workbench, and a material separating piece is arranged on the lifting frame. The material storage device with the special structure is matched with the moving workbench structure with the special structure and the manipulator, the sheet material with the positioning hole can be positioned by the pin, and the sheet material can be smoothly separated from the positioning pin rod or the positioning pin, the whole process is automatically operated by the manipulator, the material taking and placing efficiency is high, and the structural design is reasonable.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automatic sheet processing equipment, in particular to a pin positioning automatic feeding engraving machine. BACKGROUND

[0002] When thin metal, non-metal workpieces and other sheets are machined on a machine tool, a positioning hole is first punched on the workpiece as a subsequent machining positioning hole, and a positioning pin is punched on the workbench machining position, then the workpiece positioning pin hole is sleeved on the positioning pin on the workbench and fixed for machining.

[0003] Metal processing such as 3C industry light cutting mobile phone home key, camera, etc. is used to realize the positioning precision of front and back surface turning; non-metal processing such as switch panel, operation interface panel and other raw materials after silk printing in the intelligent furniture industry, first pre-punching is performed through the CCD registration punching machine, and then the machining size and silk printing size are matched through pin positioning.

[0004] The above machining method using pin positioning in the field of numerical control machine tools has the problems of many types of raw materials, large size and specification differences, high positioning precision requirements, and complex operation. At present, manual operation is mostly used for feeding and clamping, and the clamping time is long, especially in the machining of multi-spindle numerical control engraving machines. The feeding and clamping time is long, and the multiple spindles are all stopped and waited, so the multi-spindle precision machine cannot be fully used for machining, which seriously affects the machining efficiency. Especially when the sheet is placed on the movable workbench, the area of the movable workbench is small, and the movable workbench needs to be moved, so for the pin positioning sheet, the movable workbench of the existing equipment often uses manual method to place the pin positioning sheet, and the operation space is limited, and the replacement efficiency is low.

[0005] In addition, in some other existing automatic machining equipment, some use a positioning pin extension method to position and take and place the sheet, which causes the problems of inaccurate positioning, easy jamming of the positioning pin, and other problems such as insufficient cooperation precision between the positioning hole and the positioning pin when the sheet is positioned, easy failure of taking and placing, and the structure is too complex, the cost is high, and the like. The problems have not been solved. SUMMARY

[0006] The present application provides a pin positioning automatic feeding engraving machine to solve the above problems.

[0007] The pin positioning automatic feeding precision carving machine provided by the embodiment of the application comprises a bed body, a moving workbench, a machining spindle and a material taking and placing manipulator, further comprises a material storage device installed on the front side of the bed body, the material storage device comprises a material storage seat for carrying sheet materials, the material storage seat is provided with a positioning pin rod for penetrating the positioning hole of the sheet material when the sheet materials are stacked, a lifting mechanism is arranged below the material storage seat, the lifting mechanism comprises a lifting rod and a lifting drive unit for driving the lifting rod, a through hole is arranged at the position of the lifting rod on the material storage seat, a supporting plate is further arranged on the material storage seat, the lifting rod passes through the through hole of the material storage seat to support the supporting plate, so that the sheet material on the supporting plate can be integrally linked with the lifting rod, the supporting plate can be gradually lifted with the lifting rod, so that the sheet material on the supporting plate can be separated from the top end of the positioning pin rod one by one; the moving workbench is used for carrying sheet materials to form a machining position, the moving workbench is provided with a positioning pin for adapting to the positioning hole on the edge of the sheet material, a lifting frame is arranged on the periphery of the moving workbench, a material sheet is arranged on the lifting frame and extends towards the positioning pin on the workbench, a recess is arranged at the position corresponding to the material sheet on the edge of the machining position of the moving workbench, so that when the material sheet is located in the recess, the upper surface of the material sheet does not protrude above the carrying surface of the moving workbench, and a lifting frame driving mechanism is further installed on the moving workbench and is used for driving the lifting frame to push the edge of the sheet material upwards from the recess, so that the positioning hole on the edge of the sheet material is separated from the positioning pin; the manipulator has a taking and placing unit for picking up the sheet material and a moving seat for carrying the taking and placing unit, a pressing cylinder and a pressing block that moves up and down by the pressing cylinder are further arranged on the edge of the moving seat, the pressing block is arranged at the position corresponding to the periphery of the positioning hole of the sheet material when the taking and placing unit picks up the sheet material, and when the manipulator moves the sheet material from the material storage device to the machining position of the moving workbench, the pressing block pushes the sheet material downwards, so that the positioning hole of the sheet material is sleeved with the positioning pin of the moving workbench.

[0008] Preferably, the lower surface of the pressing block is provided with a recess hole corresponding to the positioning pin, and when the manipulator moves the sheet material from the material storage device to the machining position of the moving workbench, the pressing block pushes the sheet material downwards, so that the recess hole is sleeved with the positioning pin of the moving workbench corresponding to the positioning hole on the sheet material.

[0009] Preferably, the pressing block is hollowed out to form an observation window on the front side or the left and right sides.

[0010] Preferably, the moving seat comprises two installation beams arranged in parallel, two fixed beams arranged in parallel are arranged above the installation beams, the installation beams and the fixed beams are perpendicular to each other, installation columns that are perpendicular to the installation beams are arranged below the installation beams in a transverse arrangement, and a suction cup assembly for taking and placing the sheet material is installed on the installation columns as the taking and placing unit.

[0011] Preferably, the mounting column adopts a square profile with mounting grooves on both upper and lower surfaces, the mounting beam is provided with mounting grooves on the lower surface for adjusting the lateral position of the mounting column and is movably mounted with the mounting column by adjusting bolts, and the fixing beam is provided with adjusting holes for adjusting the position of the mounting beam in the longitudinal direction and is movably mounted with the mounting beam by bolts.

[0012] Preferably, the installation frame is further provided with a plurality of storage plates arranged in an array, each of the storage plates is provided with a supporting plate and a positioning pin rod, each of the storage plates is provided with a through hole, the lifting mechanism is provided with lifting rods for supporting the supporting plate through the through hole, the number of the lifting rods is two or more and is correspondingly arranged on both sides of the storage plate, the storage plate is provided with a large-diameter through hole shared by the lifting rods or is provided with through holes matching the number and diameter of the lifting rods, and the moving workbench is provided with a plurality of machining positions arranged in an array, and each of the machining positions is correspondingly provided with a positioning pin at the edge.

[0013] Preferably, handles are arranged on both sides of the storage plate for convenient extraction, the storage plates are arranged on the installation frame, the installation frame is provided with a buckle mechanism for stabilizing the storage plates on the installation frame, the buckle mechanism comprises a clamping seat fixed on the installation frame and an L-shaped pressing block, one end of the L-shaped pressing block is hingedly connected to the clamping seat, the free end of the L-shaped pressing head is used for pressing the storage plate, and the hinged end of the L-shaped pressing block is further hingedly connected with a handle, one end of the handle is hingedly connected with a connecting piece, and the other end of the connecting piece is hingedly connected with the clamping seat.

[0014] Preferably, the installation frame is further provided with an installation plate matching the number of the storage plates, the installation plate is provided with guide holes corresponding to the positions of the through holes of the storage plates, the guide holes are correspondingly provided with sleeve bearings matching the lifting rods, the storage plates are installed on the installation frame through the installation plate, the middle part of the installation plate is provided as an open window, two positioning rods are arranged on the bottom of the installation plate within the range of the open window, two positioning blocks are arranged on the bottom of the storage plate corresponding to the positions of the two positioning rods, the positioning blocks are provided with positioning grooves matching the profile width of the positioning rods, the length of the positioning blocks matches the length of the inner side of the open window so that the positioning blocks can be nested with the open window in the length direction, or the positioning blocks are divided into two or more segments, the end side distance of the positioning blocks at both ends in the length direction matches the length of the inner side of the open window so that the positioning blocks can be nested with the open window in the length direction, and the middle part of the storage plate is provided with an open window with an area smaller than that of the open window.

[0015] Preferably, the installation frame comprises an installation plate matching the number of the storage plates, the storage plates are arranged on the installation plate, the installation plate is provided with positioning protrusions / positioning grooves, and the storage plates are correspondingly provided with matching positioning grooves / positioning protrusions below.

[0016] Preferably, the lifting mechanism further comprises two lifting cross beams arranged on both sides of the storage plate, a lifting rod corresponding to the through hole is arranged on the lifting cross beam, the lifting cross beams on both sides are connected through a connecting beam, the lifting drive unit drives the lifting cross beam to lift, the connecting beam has two and is fixed with the two lifting cross beams into a square frame structure, the mounting frame is respectively fixed with a driving plate on both sides, a lifting sliding track is arranged on the driving plate on both sides respectively, a driving wheel and a driven wheel are further arranged on the driving plate on both sides through a bearing seat respectively, the driving wheel is connected with the driven wheel through a chain or a belt, a moving block linked with the belt or the chain is arranged on the belt or the chain, the moving block moves along the lifting sliding track, the lifting drive unit comprises a driving motor, the driving motor is arranged on one of the driving plates, the output end of the driving motor is used for driving the driving wheel on the side of the driving plate to rotate forward and reverse, the two driving wheels on the driving plates on both sides are integrally rotated through a linkage shaft or the two driven wheels on the driving plates on both sides are integrally rotated through a linkage shaft, the two moving blocks on the driving plates on both sides are respectively mounted on the two connecting beams so that the connecting beam can drive the lifting rod on the lifting cross beam to lift.

[0017] Preferably, the mounting frame comprises two sliding block seats extending forward to form load-bearing rods, a mounting frame sliding block for matching with a sliding rail arranged on the front side of the machine tool bed is arranged at the rear end of the sliding block seat, two load-bearing cross beams are installed on the two load-bearing rods in the front-rear direction, and the storage seat is installed on the load-bearing cross beam.

[0018] Preferably, an finished product material table for storing processed sheet materials is further arranged above the storage seat, a material table track extending in the front-rear direction is arranged below the finished product material table, a material table drive assembly for driving the finished product material table to move along the material table track so that the finished product material table is stacked or staggered with the storage seat is further arranged, and a mounting frame is further arranged, the material table track is arranged on both sides of the mounting frame in the front-rear direction, the storage seat and the material table drive assembly are respectively installed on the mounting frame, the finished product material table is installed on the material table track and located on the upper layer of the storage seat, the mounting frame further comprises mounting plates matched with the number of the storage plates, guide holes are arranged on the mounting plates at positions corresponding to the through holes of the storage plates, and track support tables extending upward are arranged on the outer sides of the mounting plates at both ends, and the material table track is installed on the track support tables.

[0019] Preferably, the material table drive assembly comprises a material table drive cylinder arranged on one side of the finished product material table, a material table drive swing rod and a material table drive connecting rod, the cylinder body of the material table drive cylinder is hinged to the mounting frame, the piston rod end of the material table drive cylinder is hinged to the middle position of the material table drive swing rod, the lower end of the material table drive swing rod is hinged to the lower position of the mounting frame, the upper end of the material table drive swing rod is hinged to one end of the material table drive connecting rod, the other end of the material table drive connecting rod is hinged to the finished product material table, the material table drive swing rod and the material table drive connecting rod are symmetrically arranged on the other side of the finished product material table, and the lower ends of the material table drive swing rods on both sides of the finished product material table are synchronously rotated through a transmission rod.

[0020] Preferably, the positioning pin rod comprises a tight portion and a release portion at the upper end of the tight portion, the outer diameter of the tight portion is equal to the inner diameter of the positioning hole of the sheet material to form an interference fit, and the outer diameter of the release portion is smaller than the inner diameter of the positioning hole of the sheet material to form a gap fit for supporting the uppermost sheet material to be lifted by a sheet thickness, and the positioning hole of the uppermost sheet material is extruded from the tight portion of the positioning pin rod to the release portion of the positioning pin rod, and a rod head with gradually decreasing diameter is extended upward at the upper end of the release portion.

[0021] Preferably, the processing position on the moving workbench is provided with a bearing plate, the upper surface of the bearing plate serves as a working surface for bearing the sheet material, and the area of the bearing plate is smaller than the area of the processing position of the moving workbench, so that the step surface formed by the edge of the processing position of the moving workbench serves as a recessed position, and the positioning pin is arranged in the recessed position formed by the step surface.

[0022] Preferably, two positioning pins are arranged on each processing position corresponding to the adjacent edges, and two corresponding sheet stripping plates are arranged on the lifting frame corresponding to each processing position, and the adjacent processing positions are arranged at a certain distance to form a containing space for supporting the sheet stripping plates of the lifting frame.

[0023] Preferably, two positioning pins are arranged on each processing position corresponding to the adjacent edges, and the lifting frame comprises a horizontal rod arranged close to the outer periphery of the moving workbench and a longitudinal rod mounted on the horizontal rod and the longitudinal rod, and the horizontal rod and the longitudinal rod are respectively provided with sheet stripping plates corresponding to the positioning pins at the processing positions, and the sheet stripping plates are installed on the horizontal rod in a manner that the position can be adjusted along the horizontal direction, and / or the sheet stripping plates are installed on the longitudinal rod in a manner that the position can be adjusted along the longitudinal direction.

[0024] Preferably, the lifting frame further comprises another horizontal rod and longitudinal rod, the horizontal rod and the longitudinal rod are arranged around the periphery of the moving workbench to form a rectangular frame, there are two or more processing positions on the moving workbench, and there is a containing space between the adjacent processing positions, and the containing space is provided with longitudinal rods mounted at both ends of the two horizontal rods, and the horizontal rod and the longitudinal rod close to one of the adjacent edges of the processing position are respectively provided with sheet stripping plates corresponding to the positioning pins at the processing positions.

[0025] Preferably, each processing position on the moving workbench has a processing table, the longitudinal rod is directly mounted on the horizontal rod, and the horizontal height of the longitudinal rod is flush with the horizontal height of the processing table, the processing table is provided with a bearing plate for bearing the sheet material, the area of the bearing plate is smaller than the area of the processing position of the moving workbench, so that the step surface formed by the edge of the processing position of the moving workbench serves as a recessed position, the sheet stripping plate mounted on the longitudinal rod is a straight plate and directly extends to the positioning pin on the moving workbench, the thickness of the bearing plate is greater than or equal to the thickness of the straight plate, the sheet stripping plate mounted on the horizontal rod has an integrated mounting portion, an elongated portion extending upward from the mounting portion, and an extension portion extending to the positioning pin on the moving workbench by bending from the elongated portion, the horizontal height of the elongated portion is flush with the horizontal height of the processing table, and the thickness of the bearing plate is greater than or equal to the thickness of the extension portion.

[0026] Preferably, the lifting frame is provided with a stripper plate extending towards the positioning pin on the workbench, which includes a stripper plate directly opposite the positioning pin or a stripper plate adjacent to the positioning pin, and the front end of the stripper plate is provided with a notch matched with the positioning pin.

[0027] Preferably, the movable workbench has two or more machining positions, each machining position is provided with a machining table, the machining table is provided with a bearing plate, the machining table is connected with a negative pressure air pipe joint for connecting to an external negative pressure, the bearing plate is provided with a vacuum hole for adsorbing a sheet material, the vacuum hole is communicated with the negative pressure air pipe joint through a pipeline in the machining table, the area of the bearing plate is smaller than the area of the machining table, so that a step surface formed by the edge of the machining table serves as a recess, and a positioning pin is arranged on the step surface corresponding to one adjacent edge of each machining table, the lifting frame includes a rectangular frame arranged close to the periphery of the movable workbench, the rectangular frame includes two parallel transverse rods and two parallel longitudinal rods mounted on the two transverse rods, a containing space is left between adjacent machining tables, and two longitudinal rods mounted at two ends of the transverse rod are arranged in the containing space, a stripper plate corresponding to the positioning pin is arranged on the adjacent edges formed by the transverse rod and the longitudinal rod, and the front end of the stripper plate is provided with a notch matched with the positioning pin.

[0028] Preferably, the movable workbench has a platform, the machining table is arranged above the platform, and a platform base extending longitudinally is arranged on the left and right sides below the platform, respectively, a space for mounting a platform slider is formed between the two platform bases, a reinforcing block for reinforcing the connection between the platform and the platform base is arranged on the outer side of each of the two platform bases, and a vertical track is arranged on the outer side surface of the reinforcing block, the lifting frame driving mechanism includes a driving cylinder mounted on the lower side of the movable workbench, the number of the driving cylinders is two, and the two driving cylinders are symmetrically arranged on the left and right sides of the movable workbench, the base of the driving cylinder is fixed to the lower side of the movable workbench to form an inverted installation, the piston rod of the driving cylinder extends downward, an air cylinder connecting block extending outward is mounted on the piston rod, a linkage block is fixedly connected to the air cylinder connecting block, the linkage block includes a longitudinal driving block fixedly mounted on the air cylinder connecting block, the longitudinal driving block extends to the front and rear sides, linkage rods extending upward are arranged at two ends of the longitudinal driving block, and the top ends of the two linkage rods support the front and rear transverse rods of the rectangular frame.

[0029] The above technical solution can be seen that, since the storage device with a special structure is used in cooperation with the movable workbench structure and the mechanical hand with a special structure, the sheet material with a positioning hole can be positioned by the positioning pin, and the sheet material can be smoothly separated from the positioning pin rod or the positioning pin, the whole process is automatically operated by the mechanical hand, the material taking and placing efficiency is high, and the structure design is reasonable. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0031] Figure 1 is a three-dimensional structure schematic diagram of the pin positioning automatic feeding precision engraving machine in the embodiment of the present application;

[0032] Figure 2 is a three-dimensional structure schematic diagram of the material storage device of the precision engraving machine in the embodiment of the present application;

[0033] Figure 3 is an exploded structure schematic diagram of the material storage device of the precision engraving machine in the embodiment of the present application;

[0034] Figure 4 is a structure schematic diagram of the material storage device of the precision engraving machine in the embodiment of the present application from a top view angle;

[0035] Figure 5 is a structure schematic diagram of the material storage device of the precision engraving machine in the embodiment of the present application from an oblique rear view angle;

[0036] Figure 6 is a structure schematic diagram of the buckle mechanism of the material storage device of the precision engraving machine in the embodiment of the present application;

[0037] Figure 7 is a structure schematic diagram of the material storage device of the precision engraving machine in the embodiment of the present application during feeding;

[0038] Figure 8 is Figure 7 an enlarged structure schematic diagram of part A;

[0039] Figure 9 is a structure schematic diagram of the positioning pin rod in another embodiment of the precision engraving machine of the present application

[0040] Figure 10 is a structure schematic diagram of another embodiment of the material storage device of the precision engraving machine in the embodiment of the present application;

[0041] Figure 11 is a three-dimensional structure schematic diagram of the moving workbench of the precision engraving machine in the embodiment of the present application;

[0042] Figure 12 is Figure 10 an enlarged structure schematic diagram of part A;

[0043] Figure 13 is an exploded structure schematic diagram of the moving workbench of the precision engraving machine in the embodiment of the present application;

[0044] Figure 14 is Figure 12 is an enlarged structural schematic view of the B part in the middle;

[0045] Figure 15 is a structure schematic view of the moving worktable angle of the precision carving machine in the embodiment of the application;

[0046] Figure 16 is a structure schematic view of the mechanical hand of the precision carving machine in the embodiment of the application.

[0047] The figure mark: 1, bed; 2, moving worktable; 3, storage material device; 4, mechanical hand; 5 processing main shaft; 20, bearing plate; 201, sliding block; 202, screw nut seat; 203, vacuum hole; 21, positioning pin; 22, lifting frame; 221, transverse rod; 222, longitudinal rod; 23, material removal piece; 231, notch; 232, mounting part; 233, elongated part; 234, extension; 24, recess; 25, lifting frame driving mechanism; 250, platform; 251, driving cylinder; 252, linkage block; 253, vertical rail; 254, sliding block; 255, linkage rod; 256, cylinder connecting block; 257, platform base; 258, reinforcing block; 26, containing space; 27, processing table; 271, processing table mounting frame; 272, negative pressure air pipe joint; 31, storage seat; 311, supporting plate; 312, storage plate; 3121, through hole; 3122, positioning block; 3123, positioning groove; 313, handle; 314, guide rod; 315, guide hole; 316, guide sleeve plate; 32, positioning pin rod; 320, sleeving part; 321, tight part; 322, release part; 323, rod head; 33, lifting mechanism; 330, driving plate; 331, lifting rod; 332, lifting crossbeam; 333, connecting beam; 335, moving block; 336, driving motor; 337, linkage shaft; 34, mounting frame; 341, sliding block seat; 342, sliding block; 343, bearing crossbeam; 344, support rod; 345, cross rod; 346, electrostatic elimination nozzle; 35, buckle mechanism; 351, clamping seat; 352, L-shaped pressing block; 353, handle; 354, connecting piece; 36, mounting plate; 361, sleeve bearing; 362, open window; 363, positioning rod; 364, rail support table; 37, finished product material table; 370, shielding plate; 371, material table rail; 372, material table driving cylinder; 373, material table driving swing rod; 374, material table driving connecting rod; 375, transmission rod; 376, sliding block connecting seat; 377, material table sliding block; 378, L-shaped side baffle; 379, storage plate; 41, taking and placing unit; 42, moving seat; 421, mounting beam; 4211, mounting groove; 422, fixed beam; 4221, adjusting hole; 423, mounting column; 4231, mounting groove; 43, material pressing cylinder; 44, material pressing block; 441, observation window; 9, sheet material. DETAILED DESCRIPTION

[0048] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the protection scope of the present application.

[0049] Embodiment:

[0050] The embodiment of the present application provides a pin positioning automatic feeding precision carving machine, which combines Figures 1 to 16 As shown in the figure, it comprises a bed body 1, a moving workbench 2, a storage material device 3, a material taking and placing manipulator 4 and a machining spindle 5. The bed body 1 is provided with a machine tool shell, so that the related components in the bed body are protected. The moving workbench 2 is driven in the longitudinal direction (Y axis), so the moving workbench driving motor and the related screw rod assembly are also provided on the bed body. The storage material device is installed on the front side of the bed body, which can save more processing moving space for the moving workbench, and is also convenient for the operator to operate and maintain. The material taking and placing manipulator 4 has a horizontal, longitudinal and vertical (XYZ axis) moving range, which can pick up the sheet material on the storage material device to the moving workbench, and also can pick up the sheet material on the moving workbench to the material placing area. The machining spindle 5 has a horizontal and vertical moving range, which cooperates with the longitudinal moving range of the moving workbench to realize planar and vertical three-dimensional machining.

[0051] The storage material device comprises a storage seat 31 for carrying sheet material 9. The storage seat is a carrier for storing sheet material, which can be a seat body structure or a frame body structure. The storage seat 31 is provided with a positioning pin rod 32 for penetrating the sheet material positioning hole when the sheet material is stacked. The length of the positioning pin rod can determine the storage amount of the sheet material. A lifting mechanism 33 is arranged below the storage seat 31. The lifting mechanism comprises a lifting rod 331 and a lifting driving unit for driving the lifting rod. The storage seat 31 is provided with a through hole corresponding to the position of the lifting rod 331. The storage seat 31 is also provided with a supporting plate 311. The lifting rod 331 passes through the through hole of the storage seat to support the supporting plate, so that the sheet material 9 on the supporting plate can be integrally linked with the lifting rod. During feeding, the supporting plate slowly rises under the support of the lifting rod. At this time, the storage seat and the positioning pin rod on the storage seat are relatively fixed. With the rising of the supporting plate, the sheet material on the supporting plate is separated from the top end of the positioning pin rod one by one and is taken away by the manipulator. In the limited working space of the automatic sheet material processing equipment, the storage and separation of the pin positioning sheet material are realized by the cooperation of simple components, which greatly helps the fast and efficient taking of the sheet material in the subsequent material taking process.

[0052] The mounting frame 34 is provided as a carrier of the storage seat and other related components in the embodiment. The storage seat 31 is mounted on the mounting frame 34. The mounting frame can be the bed of the machine tool, for example, the storage seat is directly mounted on the bed. The mounting frame and the storage seat can be an integrated structure, that is, as a whole structure. The mounting frame can also be an independent frame body, which is convenient for disassembly and combination of the storage device with different machine tools, and can greatly increase the adaptability of the whole storage device on different machine tools. The storage seat 31 includes three independent storage plates 312 arranged in an array in the embodiment. Each independent storage plate corresponds to an independent storage station. The independent storage plate can be directly taken off from the mounting frame, which is convenient for replacing the storage plate full of sheet materials after the sheet materials are taken. Generally, the multiple machining spindles of the machine tool correspond to multiple machining stations. Therefore, the storage plates are arranged in correspondence with the multiple machining spindles of the machine tool, for example, in other embodiments, the machining spindles are two, four or more. Therefore, the independent storage plates are also arranged in correspondence with two, four or more. In summary, the number of machining spindles determines the number of storage plates, and also determines the number of storage stations and the number of machining stations. The supporting plate 311 and the positioning pin rod 32 are arranged on each storage plate 312. The number of positioning pin rods is generally two, which can determine the position of the sheet material by arranging two positioning pin rods on the adjacent edges of the sheet material. In the embodiment, four through holes 3121 are arranged on each storage plate 312 and are dispersed on both sides of the storage plate, that is, on the upper and lower sides or on the left and right sides. In the embodiment, the four through holes are just at the four corners of the sheet material. In other embodiments, if the top surface of the lifting rod is arranged to be relatively large and can support the supporting plate alone, one lifting rod can also realize the lifting function of the supporting plate relative to the positioning pin rod. When a relatively thin lifting rod is used, two or three lifting rods can realize the support of the supporting plate. The three lifting rods are distributed in a triangular shape, that is, on both sides of the supporting plate. At this time, a larger through hole (a large-diameter through hole is equivalent to a hollow in the middle of the storage seat or the storage plate) is arranged on the storage seat or the storage plate. The multiple lifting rods pass through the hollow in the middle of the storage seat or the storage plate to realize the lifting support of the supporting plate. In this case, the lifting rod can lack guidance and shake during the lifting process. Therefore, the lifting mechanism is provided with lifting rods matched with the number and aperture of the through holes on the storage plate in the embodiment.

[0053] As can be known from the above, the storage plate in the embodiment can be directly taken down and replaced. Handles 313 are arranged on the two sides of the storage plate for facilitating the taking and placing of the storage plate by the operator. The storage plate 312 is arranged on the mounting rack 34. The mounting rack 34 is provided with a buckle mechanism 35 for stably fixing the storage plate 312 on the mounting rack 34. The buckle mechanism can be a screw fastening type buckle, a magnetic type buckle, a tongue and groove type buckle or the like. The storage plate can be locked on the mounting rack by the buckle mechanism, or the storage plate can be smoothly taken down from the mounting rack after the buckle mechanism is unlocked. In the embodiment, the buckle mechanism 35 includes a clamping seat 351 fixed on the mounting rack 34 and an L-shaped pressing block 352. One end of the L-shaped pressing block 352 is hingedly connected to the clamping seat 351. The free end of the L-shaped pressing block is used for pressing the storage plate. The hinged end of the L-shaped pressing block is also hingedly connected to a handle 353. One end of the handle is hingedly connected to a connecting piece 354. The other end of the connecting piece 354 is hingedly connected to the clamping seat. When the handle is pulled away from the clamping seat, the L-shaped pressing block is released, and the free end of the L-shaped pressing block does not press the storage plate. When the handle is pulled towards the clamping seat, the free end of the L-shaped pressing block is pressed towards the storage plate under the action of the hinged points on the upper side of the hinged end of the L-shaped pressing block and the handle. The buckle mechanism adopted in the embodiment has a simple and reasonable structure. The handle forms a lever form, and has the characteristics of labor-saving and convenient operation.

[0054] Since the supporting plate is located on the storage plate, and the storage plate can be independently taken down, the supporting plate is also frequently taken down and replaced with a full piece of material. In order to enable the supporting plate to be stably matched with the lifting rod during the replacement of the storage plate or the supporting plate, the top end of the lifting rod 331 has a step surface with an outer diameter smaller than the body of the lifting rod. The lower surface of the supporting plate is provided with a matching groove corresponding to the step surface of the lifting rod. In other embodiments, the step surface of the lifting rod can be replaced by a top end surface with a gradually decreasing outer diameter. When the supporting plate is placed on the lifting rod, it can be quickly matched and fixed, and the supporting plate can be prevented from easily slipping off the top end of the lifting rod during lifting.

[0055] In order to make the lifting of the lifting rod more stable and smooth, the embodiment further includes a mounting plate 36 matched in number with the storage plate 312. The mounting plate 36 is provided with a guide hole corresponding to the position of the through hole 3121 of the storage plate. The guide hole is provided with a sleeve bearing 361 matched with the lifting rod. The storage plate 312 is installed on the mounting rack 34 through the mounting plate 36. The sleeve bearing extends out of the mounting plate. The upper part of the sleeve bearing is matched with the through hole 3121 of the storage plate 312 to further fix the storage plate 312.

[0056] In other embodiments, the mounting rack includes mounting plates matching the number of storage plates, the storage plates are placed on the mounting plates, positioning protrusions are arranged on the mounting plates, and matching positioning grooves are arranged below the storage plates. In other embodiments, positioning grooves can be arranged on the mounting plates, and positioning protrusions are arranged below the storage plates. Such a structure can quickly and simply realize the installation and positioning of the storage plates and the mounting plates, effectively preventing mispositioning of the storage plates, but the storage plates or the mounting plates need a certain thickness to ensure the arrangement of the positioning grooves or the positioning protrusions.

[0057] Since the mounting plate, especially the storage plate, is not suitable to have a large thickness, if the thickness is too large, it not only consumes more materials but also is not conducive to handling, disassembly and other operations. Therefore, the mounting plate and the storage plate in the embodiment are both thin plate structures. In the embodiment, the middle part of the mounting plate 36 is provided with an open window 362, the area of the open window is smaller than that of the storage plate, and two positioning rods 363 are arranged at the bottom of the mounting plate 36 within the range of the open window. Two positioning blocks 3122 are arranged at the bottom of the storage plate 312 corresponding to the positions of the two positioning rods 363, and positioning grooves 3123 matching the profile width of the positioning rods are arranged on the positioning blocks 3122. In other embodiments, the length of the positioning block matches the length of the inner side of the open window, so that the positioning block can be nested with the open window in the length direction. In the embodiment, in order to save costs and further simplify the structure, the positioning block 3122 is divided into two segments (in other embodiments, it can also be divided into three segments or more segments), and the end side distance (distance between the outer ends) of the positioning block at both ends in the length direction matches the length of the inner side of the open window 362, so that the positioning block can be nested with the open window in the length direction. Through such a simple structure, the storage plate can be positioned in the front, rear, left and right directions and stably installed and fixed on the mounting plate. The storage plate 312 can also be provided with an open window with an area smaller than that of the open window 362, which facilitates the operator to check the cooperation between the positioning block and the positioning rod through the open window, so as to quickly and accurately install the storage plate on the mounting plate. The open window can further save materials.

[0058] The lifting mechanism 33 in the embodiment also includes two lifting cross beams 332 arranged on both sides of the storage plate, and lifting rods 331 corresponding to the through holes are arranged on the lifting cross beams 332. The lifting cross beams 332 on both sides are connected through a connecting beam 333, and the lifting driving unit drives the lifting cross beams to lift. One lifting driving unit can drive multiple lifting rods to lift, saving cost and simplifying structure. The connecting beam 33 has two and is fixed into a square frame structure with the two lifting cross beams. The mounting frame 34 has driving plates 330 fixed on both sides, lifting sliding tracks 334 are arranged on the driving plates on both sides, respectively, and driving wheels and driven wheels are arranged on the driving plates on both sides through bearing seats, respectively. The driving wheels are connected to the driven wheels through a chain, and a moving block 335 linked with the chain is arranged on the chain. The moving block moves along the lifting sliding track. The lifting driving unit includes a driving motor 336 arranged on one of the driving plates. The output end of the driving motor is used to drive the driving wheel on the side of the driving plate to rotate forward and backward. The two driving wheels on the driving plates on both sides are integrally rotated through a linkage shaft 337 or the two driven wheels on the driving plates on both sides are integrally rotated through a linkage shaft. The two moving blocks on the driving plates on both sides are respectively mounted on the two connecting beams 333, so that the connecting beams can drive the lifting rods 331 on the lifting cross beams to lift. In other embodiments, the chain can be replaced by a belt. The lifting mechanism in the embodiment adopts a rectangular frame lifting structure composed of lifting cross beams and connecting beams, which solves the problem of simultaneous lifting of multiple lifting rods through a simple and practical structure, saves materials, and the rectangular frame is arranged around the mounting frame without occupying too much space.

[0059] The mounting frame 34 in the embodiment includes two sliding block seats 341 extending forward to form load-bearing rods, and mounting frame sliding blocks 342 are arranged at the rear ends of the sliding block seats 341 to be matched with the sliding rails arranged on the front side of the machine tool bed. Two load-bearing cross beams 343 are mounted on the two load-bearing rods in the front-rear direction, and the storage seats are mounted on the load-bearing cross beams. In this way, the mounting frame is formed into a well-shaped structure by simple materials, and the entire mounting frame can be moved left and right as a whole to cooperate with more subsequent process operations. The load-bearing cross beams 343 adopt a profile with mounting grooves on both upper and lower surfaces. The profile can be directly purchased from the market, which is convenient for production. The mounting grooves on the profile can enable other components to be more quickly mounted on the mounting frame, saving cost and improving production efficiency.

[0060] In the existing device, the sheet material becomes a finished product after processing, and a finished product rack for storing the finished product is often arranged beside the loading area on the bed of the machine tool, thereby reducing the storage capacity of the originally crowded bed space. In the present embodiment, in order to overcome this problem, a finished product table 37 for storing the processed sheet material is further arranged above the storage seat, a table rail 371 extending in the front-rear direction is arranged below the finished product table 37, and a table driving assembly for driving the finished product table to move along the table rail so that the finished product table is stacked or staggered with the upper layer of the storage seat is further included. In the present embodiment, the finished product table and the sheet material storage area form a stacked structure, and the upper finished product table can move forward and backward, so that the finished product table can be staggered and overlapped at different time sequences of loading and unloading, thereby ensuring the orderly loading and unloading. The mounting bracket is installed on the front side of the machine body, thereby further expanding the loading and unloading capacity of the machine tool and improving the processing efficiency of the machine tool. In order to further protect the finished product sheet on the finished product table, sliding block connecting seats 376 and table sliding blocks 377 cooperating with the table rail are arranged on both sides below the finished product table 37, the sliding block connecting seats extend upward and form L-shaped side baffles 378, a receiving plate 379 for accommodating the finished product sheet is arranged between the two L-shaped side baffles, a shielding plate 370 extending upward on the receiving plate near the processing table, and the shielding plate is higher than the two L-shaped side baffles. Such a structure can quickly assemble the finished product table during processing, the two L-shaped side baffles can avoid collision with other parts of the machine tool during the horizontal movement of the mounting bracket, and the shielding plate can effectively shield the machining liquid or cutting fluid and other pollutants from the processing table.

[0061] In the present embodiment, the mounting bracket 34 is arranged, so that the table rail 371 can be arranged on both sides of the mounting bracket in the front-rear direction. The storage seat 31 and the table driving assembly are respectively installed on the mounting bracket 34, and the finished product table 37 is installed on the table rail 371 and located on the upper layer of the storage seat 31, so that the finished product table can also move left and right together with the mounting bracket. Since the mounting bracket 34 further includes mounting plates 36 matched with the number of storage plates, guide holes are arranged at positions corresponding to the through holes of the storage plates on the mounting plates, upward extending rail support tables 364 are arranged outside the mounting plates 36 at both ends, and the table rail 371 is installed on the rail support tables 364. The distance between the inner sides of the two rail support tables 364 is matched with the width of the storage plates at both ends to form lateral limiting of the storage plates, that is, the distance between the outer sides of the two outermost storage plates is matched with the distance between the inner sides of the rail support tables. In this way, the limited space can be fully and reasonably utilized, and the size matching of the mounting plates with other components is also facilitated, thereby facilitating quick assembly.

[0062] The special driving assembly is used to drive the finished product table in the embodiment. The table driving assembly in the embodiment includes a table driving cylinder 372, a table driving swing rod 373 and a table driving connecting rod 374 arranged on one side of the finished product table. The cylinder body of the table driving cylinder 372 is hinged to the mounting frame 34, the piston rod end of the table driving cylinder 372 is hinged to the middle position of the table driving swing rod, the lower end of the table driving swing rod 373 is hinged to the lower position of the mounting frame, the upper end of the table driving swing rod 373 is hinged to one end of the table driving connecting rod 374, and the other end of the table driving connecting rod 374 is hinged to the finished product table 37. When the piston rod of the table driving cylinder is pushed forward, the upper end of the table swing rod 373 swings forward, thereby driving the table connecting rod 374 to move forward and driving the table to slide forward along the table track. The whole driving assembly has simple structure and low cost, and can make the movement of the table more timely and reliable.

[0063] In order to make the finished product table move more stably, the table driving swing rod and the table driving connecting rod are symmetrically arranged on the other side of the finished product table 37, and the lower ends of the table driving swing rods on both sides of the finished product table are synchronously rotated through a transmission rod 375. The transmission rod can keep the movement of both sides of the finished product table balanced and prevent the finished product table from being stuck.

[0064] In the existing device, the stacked sheet materials always have the problem of sticking between two adjacent sheet materials, and the separation of the sheet materials always exists. The skilled in the art uses isolation paper, air float separation, liquid injection separation and other means, but the above-mentioned means cannot be used for the sheet material with positioning pin, especially the existence of the positioning pin rod makes the above-mentioned separation effect almost invalid. In order to solve the above-mentioned problem, the positioning pin rod 32 includes a tight part 321 and a release part 322 located at the upper end of the tight part 321 in the embodiment. The outer diameter of the tight part 321 is equal to the inner diameter of the sheet material positioning hole to form an interference fit. Here, “equal” allows a certain error, as long as the sheet material positioning hole and the tight part exist full contact and do not automatically fall off. The outer diameter of the release part 322 is smaller than the inner diameter of the sheet material positioning hole to form a gap. When the support plate is lifted by a sheet material thickness under the support of the lifting rod, the positioning hole of the uppermost sheet material is extruded from the tight part of the positioning pin rod to the release part of the positioning pin rod. At this time, the uppermost sheet material is no longer bound by the lifting rod, and the uppermost sheet material is located in the release part with a gap, and the next layer of sheet material adjacent to the uppermost sheet material is still in the tight part of the lifting rod. When the manipulator picks up the uppermost sheet material, the sticking phenomenon does not occur, and the sticking problem between adjacent sheet materials is effectively solved.

[0065] In order to facilitate the sheet material positioning hole to be more easily inserted into the positioning pin rod, the release part 322 extends upwardly in the embodiment to form a rod head 323 with gradually decreasing diameter at the upper end.

[0066] In another embodiment, the penetrating portion 321 of the positioning pin rod 32 is arranged at a position close to the top end of the positioning pin rod, the diameter of the positioning pin rod below the penetrating portion 321 is smaller than the diameter of the penetrating portion to form a sleeving portion 320, and the positioning hole of the sheet material is sleeved on the sleeving portion 320 of the positioning pin rod after penetrating the penetrating portion 321 to form a clearance fit. Such a positioning pin rod with a thicker penetrating portion and thinner ends is more suitable for sheet materials with thinner thickness, and more sheet materials can be stacked without the difficulty of sheet material separation. When the sheet material is separated, it only penetrates a small distance on the penetrating portion of the positioning pin rod, the first layer of sheet material can be smoothly separated from the penetrating portion under the action of external force, and the penetrating portion can well limit the natural separation of the second layer of sheet material or the separation caused by the adhesion of the first layer of sheet material. There is basically no tension between the positioning hole of the sheet material at the position of the sleeving portion and the sleeving portion, and the sheet material is in a released state. When the sheet material rises relative to the positioning pin rod, it will not be affected by the reaction force or interference of the sleeving portion, which saves the power consumption of the lifting mechanism.

[0067] In this embodiment, the positioning pin rod itself also has a certain guiding effect on the lifting of the supporting plate and the sheet material, so that the lifting of the supporting plate and the sheet material is stable. In another embodiment, in order to further ensure the stability and accuracy of the lifting of the supporting plate and the sheet material, two guide rods 314 are arranged on the storage seat for keeping the supporting plate 311 stable during lifting, and the supporting plate 311 is provided with guide holes 315 matched with the guide rods. Without complex guide rail design, stable lifting can be achieved. Diagonally arranged two guide rods can have better stability effect, especially when the two lifting rods support a diagonal of the supporting plate, and the two guide holes are located at the other diagonal of the supporting plate, which can enable the supporting plate to stably lift with the least support and guidance. In other embodiments, the number of guide rods and guide holes can be 3 or 4 respectively. Since the guide rod and the guide hole will frequently rub during lifting, in order to ensure the replaceability of the guide hole, a guide sleeve plate 316 is installed on at least two top corners of the supporting plate, and the guide sleeve plate 316 is provided with a guide hole 315 matched with the guide rod 314. The four top corners of the supporting plate can be provided with guide sleeve plates, the guide sleeve plates can be made of wear-resistant polymer materials, and the guide sleeve plates can be installed on the supporting plate by screw locking to facilitate replacement of worn guide sleeve plates or adjustment of the position cooperation of the guide holes on the guide sleeve plates and the guide rods. Figure 8The four top corners of the supporting plate 4 are provided with guide sleeve plates, but only two guide rods are matched with the guide holes of one pair of corners of the supporting plate. When the storage seat is provided with independent storage plates, the guide rods are arranged on the storage plates, so that the supporting plate can be sleeved on the guide rods of the storage plates, and the supporting plate can be taken down and replaced with the storage plates as a whole unit. When the storage seat is installed on the mounting frame, the mounting frame is rotatably installed with a forward and upward extending support rod 344, the support rod 344 is installed with a transversely extending cross rod 345, and the cross rod 345 is installed with an electrostatic elimination nozzle 346 arranged towards the upper stacked sheet material of the supporting plate. When it is necessary to take or place the storage plate or the supporting plate from the mounting frame, the support rod can be turned down to provide more space for the operator to operate, and after the full supporting plate is placed on the storage seat, the support rod is turned back to the original position, and the outward extension of the support rod occupies a small space, which is convenient for operation.

[0068] Since the embodiment of the present application adopts the matching of the positioning pin rods arranged on the storage seat and the positioning holes of the sheet material, and the supporting plate arranged on the storage seat, the positioning holes of the stacked sheet material can be sleeved on the positioning pin rods and placed on the supporting plate, and a lifting mechanism is further arranged below the storage seat to drive the supporting plate to ascend and descend relative to the positioning pin rods on the storage seat, the lifting mechanism ascends by one sheet material thickness position each time, so that the top layer of the stacked sheet material can be taken away by the mechanical hand without obstacles, and the stable and accurate storage of the pin positioning sheet material and the installation, rapid and obstacle-free taking away are realized through the simple structure design.

[0069] The mobile workbench in the embodiment also has a special structure, forming a mobile workbench structure for pin positioning sheet material. The mobile workbench structure includes a mobile workbench 2 for carrying sheet material to form a processing position. In this embodiment, the mobile workbench is provided as an example of moving along the longitudinal direction of the bed body. The mobile workbench is provided with a workbench driving motor and a screw assembly below the bed body, so that the moving position of the mobile workbench is more accurate. The mobile workbench is provided with a positioning pin 21 for adapting to the positioning hole on the edge of the sheet material. The edge position can not be disturbed during sheet material processing, and the positioning pin should not be too long. The mobile workbench is provided with a lifting frame 22 around the circumference, so that the lifting frame does not occupy too much space, and the structure can be upgraded and modified on the basis of the existing mobile workbench, and the space utilization is more reasonable. The lifting frame is provided with a material removal piece 23 extending towards the positioning pin on the workbench, so that the material removal piece can extend into the lower layer position of the sheet material, and the material removal operation of the sheet material is realized by a small structure. The position corresponding to the material removal piece 23 at the edge of the mobile workbench processing position is provided with a recess 24 lower than the carrying surface of the mobile workbench, so that the upper surface of the material removal piece is not higher than the carrying surface of the mobile workbench when the material removal piece is located in the recess. In this way, it can be ensured that the sheet material will not have a problem of unevenness on the carrying surface, and the sheet material processing effect will not be affected. The mobile workbench is also provided with a lifting frame driving mechanism 25 for driving the lifting frame to push the sheet material edge upwards to make the sheet material edge positioning hole separate from the positioning pin. The sheet material is provided with a positioning hole, and when the sheet material is placed on the mobile workbench carrying plate, the sheet material positioning hole is sleeved with the positioning pin to realize the positioning of the sheet material, so as to facilitate the accurate machining of the sheet material by the machining spindle. Due to the existence of the recess, the material removal piece will be located in the recess, and the sheet material will not protrude from the surface of the carrying plate, and the sheet material will be placed flat on the carrying plate.

[0070] In this embodiment, the material removal piece provided on the lifting frame 22 extends towards the positioning pin on the workbench, which means that the material removal piece 23 is directly opposite the positioning pin 21. In this way, the force point of the material removal piece acting on the sheet material is directly opposite the position of the positioning pin limiting the sheet material positioning hole, and the material removal effect is better. Further, in order to make the force range of the material removal piece acting on the sheet material positioning hole larger, the material removal effect is more obvious, the front end of the material removal piece in this embodiment is provided with a notch 231 adapted to the positioning pin. It can be understood that in other embodiments, the material removal piece can not be directly opposite the positioning pin, and the material removal piece can be adjacent to the positioning pin, and the material removal can also be realized. The material removal is to separate the positioning hole of the sheet material from the positioning pin.

[0071] The mobile workbench structure for positioning sheet material in the present application can be used for single-head or multi-head (single machining spindle or multiple machining spindles, including two) machining equipment. The present embodiment takes a numerical control equipment with two or more machining spindles corresponding to two or more machining positions as an example, and specifically takes a three-station equipment as an example for introduction. Therefore, two or more machining positions are also arranged on the mobile workbench, and three machining positions are taken as an example. A positioning pin is arranged at the edge of each machining position, so as not to affect the machining of the sheet material. Two positioning pins are arranged at the adjacent edges of each machining position, so that the sheet material can be positioned more accurately and stably. More positioning pins can be arranged on each machining position, but this belongs to the case including two positioning pins. Two corresponding stripping sheets 23 are arranged on the lifting frame 22 corresponding to each machining position. The adjacent machining positions are arranged at a certain distance to form a containing space 26 for supporting the stripping sheet of the lifting frame. A part of the lifting frame can pass through the containing space 26, so that the stripping sheet also has a corresponding configuration at the positioning hole of the other side of the sheet material.

[0072] In the present embodiment, a bearing plate 20 is arranged at the machining position on the mobile workbench 2. The upper surface of the bearing plate 20 serves as a working surface for bearing the sheet material. The area of the bearing plate is smaller than the area of the machining position of the mobile workbench, so that the step surface formed at the edge of the machining position of the mobile workbench serves as a recess 24. Here, the machining position is the table surface of the machining table of the workbench, rather than the area of the machining surface occupied by the sheet material. The step surface can be formed at two sides to serve as the recess, or the step surface can be formed at four sides to serve as the recess, so as to facilitate the selection and arrangement of the positioning pins. The positioning pins 21 are arranged on the recess 24 formed by the step surface. Compared with the structure in which a space is cut out on a whole plate structure of the mobile workbench to form a recess, the present embodiment directly uses the bearing plate to directly form a step surface on the workbench to serve as a recess. The structure is easier to process and realize, and the space utilization is more reasonable.

[0073] In order to better cooperate with the two positioning pins arranged at the adjacent edges of each machining position, the lifting frame 22 includes a transverse rod 221 arranged close to the outer periphery of the mobile workbench and a longitudinal rod 222 mounted on the transverse rod 221 and the longitudinal rod 222. The transverse rod 221 and the longitudinal rod 222 are respectively provided with stripping sheets 23 corresponding to the positioning pins at the machining position. The L-shaped structure or F-shaped structure of the lifting frame can realize the arrangement of the stripping sheets at the adjacent edges of each station, which can save a certain amount of material. In the present embodiment, another transverse rod and longitudinal rod are also included. The transverse rod and the longitudinal rod are arranged around the periphery of the mobile workbench to form a rectangular frame, which is more stable in structure. Two or more machining positions are arranged on the mobile workbench, and a containing space is left between the adjacent machining positions. The longitudinal rod 222 is mounted at the two ends of the two transverse rods 221 in the containing space. The transverse rod and the longitudinal rod close to one of the adjacent edges of the machining position are respectively provided with stripping sheets 23 corresponding to the positioning pins at the machining position.

[0074] The stripper sheet is installed on the transverse rod in a position-adjustable manner in the transverse direction, and the stripper sheet is installed on the longitudinal rod in a position-adjustable manner in the longitudinal direction, so that the stripper sheet can adjust its position according to the position of the positioning pin on the different workbench to improve the versatility. In other embodiments, the stripper sheet can be adjusted in position on the transverse rod or the longitudinal rod. There are many ways for the stripper sheet to adjust its position, for example, the transverse rod and the longitudinal rod can both adopt a profile with a mounting groove on the upper surface, and the stripper sheet can be locked in the mounting groove of the profile by screws or bolts. When the position needs to be adjusted, the screws or bolts are loosened to move the position, and then the screws or bolts are locked. A row of position-adjustable holes can also be provided on the transverse rod or the longitudinal rod.

[0075] Each processing position on the movable workbench has a processing table. In this embodiment, the longitudinal rod is directly installed on the transverse rod, and the horizontal height of the longitudinal rod is flush with the horizontal height of the processing table, so that the transverse rod and the longitudinal rod do not need to be specially arranged and can be directly used to form a support structure. Since the transverse rod is supported at the bottom, the stripper sheet 23 installed on the transverse rod has an integrated mounting portion 232, an elongated portion 233 extending upward from the mounting portion 232, and an extension portion 234 extending from the elongated portion and extending toward the positioning pin on the movable workbench. The horizontal height of the elongated portion is flush with the horizontal height of the processing table 27, and the thickness of the bearing plate is greater than or equal to the thickness of the extension portion.

[0076] Since the processing table is provided with a bearing plate for carrying the sheet material, the area of the bearing plate is smaller than the area of the processing position of the movable workbench, so that the step surface formed at the edge of the processing position of the movable workbench serves as a recess. In this embodiment, the stripper sheet installed on the longitudinal rod is a straight sheet and directly extends toward the positioning pin on the movable workbench. The thickness of the bearing plate is greater than or equal to the thickness of the straight sheet, so that the straight sheet does not protrude at the recess. The straight sheet is directly installed on the longitudinal rod, which is more stable, and the height of the longitudinal rod also serves as the support height of the stripper sheet, further saving materials.

[0077] The lifting frame driving mechanism 25 in the embodiment comprises a driving cylinder 251 installed at the lower side of the moving table, a linkage block 252 connected to the piston rod of the driving cylinder, a vertical track 253 arranged at the lower side of the moving table, a sliding block 254 arranged on the linkage block 252 and matched with the vertical track 253, and a linkage rod 255 for supporting the lifting frame. Since the lifting frame adopts a rectangular frame structure formed by the horizontal rods and the vertical rods, the linkage rod 255 in the embodiment adopts a T-shaped rod, the bottom end of the T-shaped rod is installed on the linkage block 252, the linkage block 252 is a vertically extending rod, the T-shaped rod is arranged at both ends of the vertically extending rod, the top end of the T-shaped rod is a support block extending in the horizontal direction, which can increase the support of the horizontal rods 221 in the horizontal direction and make the structure more stable. The base of the driving cylinder 251 is fixed at the lower side of the moving table to form an inverted installation, the piston rod of the driving cylinder 251 extends downward, a cylinder connecting block 256 extending outward is installed on the piston rod, and the cylinder connecting block 256 is fixedly connected with the linkage block 252. The moving table has a platform 250, which is equivalent to a bearing table, a machining position is arranged above the platform, and a platform base 257 extending in the vertical direction is arranged below the platform, so that the platform has a more stable structure. The outer side of the platform base 257 is further provided with a reinforcing block 258 for reinforcing the connection between the platform and the platform base, so as to make the structure between the platform and the platform base more stable. The outer side of the reinforcing block 258 is provided with the vertical track 253, so that the reinforcing block is used for reinforcing and stabilizing the platform and the platform base, and also provides installation space for the vertical track 253, and the space is used reasonably to the extreme. In addition, the sliding block 201 for realizing the sliding of the moving table and the screw nut base 202 are arranged below the platform. The bottom of the whole platform provides installation space for the related driving components, does not cause excessive space occupation of the moving table, the platform base can also make the height of the platform increased, the space at the bottom is increased, and space for installation does not need to be opened up at other positions.

[0078] In order to improve the fixing effect of the sheet material, the vacuum hole 203 for adsorbing the sheet material is arranged on the moving workbench processing position, so that the sheet material can also be adsorbed on the processing position by vacuum during processing, thereby forming a double positioning effect of the positioning pin and the vacuum hole. Each processing position on the moving workbench has a processing table 27, a negative pressure cavity is arranged in the processing table 27, the moving workbench has a platform 250, a processing table mounting frame 271 is mounted on the periphery of the platform, the processing table mounting frame and the platform contour match a rectangular frame structure, the processing table is arranged on the processing table mounting frame 271, and the processing table and the processing table mounting frame form a 'hat' structure buckled on the platform 250, so that the processing table is stably combined with the platform. A negative pressure gas pipe joint 272 for connecting the negative pressure is arranged below the processing table and communicates with the negative pressure cavity, a bearing plate 20 is arranged on the processing table 271, the bearing plate 20 is provided with a vacuum hole 203 communicating with the negative pressure cavity, and the area of the bearing plate 20 is smaller than the area of the processing table 271, so that the step surface formed by the edge of the processing table is used as a recess 24.

[0079] Since the lifting frame is arranged on the periphery of the moving workbench in the embodiment of the application, too much space is not occupied, the recess of the material removal sheet and the bearing surface of the moving workbench is matched, the sheet material can be pushed out from the positioning pin without affecting the normal working and processing of the moving workbench, and the structure design is reasonable.

[0080] The mechanical hand 4 in the embodiment has a pick-and-place unit 41 for picking up the sheet material and a moving seat 42 for bearing the pick-and-place unit, a material pressing cylinder 43 and a material pressing block 44 which moves up and down by the material pressing cylinder are further arranged on the edge of the moving seat 42, the material pressing block 44 corresponds to the position of the periphery of the sheet material positioning hole when the pick-and-place unit 41 picks up the sheet material, and the material pressing block 44 pushes the sheet material downward to make the sheet material positioning hole fit into the positioning pin 21 of the moving workbench when the mechanical hand 4 moves the sheet material from the storage device 3 to the processing position of the moving workbench 2. The material pressing block is additionally arranged on the mechanical hand, and the acting force of the material pressing block is at the periphery of the sheet material positioning hole, so that the sheet material can be stably and accurately fitted into the positioning pin, the sheet material is prevented from sticking on the mechanical hand, and the efficiency of picking and placing the material is improved.

[0081] A recess hole corresponding to the positioning pin is arranged on the lower surface of the material pressing block 44, the material pressing block pushes the sheet material downward when the mechanical hand moves the sheet material from the storage device to the processing position of the moving workbench, and the recess hole corresponds to the positioning hole on the sheet material and fits into the positioning pin 21 of the moving workbench. The design of the recess hole on the material pressing block can make the recess hole coincide with the sheet material positioning hole, and the periphery of the sheet material positioning hole can be subjected to the action of the pressing block during the pressing process, the stress is uniform, and the pressing effect is better. The material pressing block 44 is hollow on the front and rear sides or the left and right sides to form an observation window 441, so that the operator can observe the alignment of the pressing block and the positioning of the sheet material in time, and the consumption of the pressing block is also saved, and the cost is reduced.

[0082] The moving seat 42 comprises two parallelly arranged installation beams 421, above which pass two parallelly arranged fixing beams 422, the installation beams 421 and the fixing beams 422 perpendicularly intersect, below the installation beams 421 are arranged transversely and perpendicularly intersected with the installation beams 423, and the installation columns 423 are arranged above the installation beams 423 and are used for mounting the suction disc assembly for taking and placing the sheet material as the taking and placing unit. The fixing beams 422 are used for connecting with the driving mechanism moving along the XYZ axis, so that the taking and placing unit can move along the XYZ axis. The installation beams 421 and the fixing beams form a cross structure, which can have a wider expansion space, for example, the multiple installation columns 423 arranged below the installation beams can meet the processing requirement of multiple stations and can expand more taking and placing units.

[0083] The installation column 423 adopts a square profile provided with installation grooves 4231 on the upper and lower surfaces, the installation beam is provided with an installation groove 4211 on the lower surface for adjusting the transverse position of the installation column and is movably positioned and installed with the installation column 423 through the adjusting bolt, and the fixing beam 422 is provided with an adjusting hole 4221 on the upper surface for adjusting the longitudinal position of the installation beam and is movably positioned and installed with the installation beam through the bolt. The installation column, the installation beam and the fixing beam can expand more adjustment space, and the structural design is more reasonable and easy to produce and manufacture.

[0084] During work, the stack of sheet materials is fully loaded on the supporting plate, the positioning holes on the sheet materials are all penetrated on the positioning pin rods of the storage plate, the storage plate is fixed on the mounting frame, when the manipulator takes the sheet material, the lifting mechanism lifts the lifting rod upward by one thickness of the sheet material, the supporting plate is lifted upward by one thickness of the sheet material relative to the storage plate, the positioning hole of the uppermost sheet material on the supporting plate is separated from the penetrating part of the positioning pin rod to the releasing part, the manipulator takes away the uppermost sheet material, and the cycle is repeated until the lifting mechanism lifts the supporting plate to the upper part of the positioning pin rod through the lifting rod, and the sheet materials on the supporting plate are taken by the manipulator. The lifting mechanism returns to the initial position, the supporting plate falls back to the storage plate, the operator takes down the storage plate from the mounting frame, replaces the storage plate full of sheet materials, and continues to load. When the machine tool needs to be adjusted, the mounting frame is pushed to one side of the bed body, the mounting frame can be manually pushed or electrically controlled to move, and the front side of the bed body can be positioned by the positioning column, the limiting block and the buckle mechanism.

[0085] When the mechanical arm picks up the sheet material from the storage device to the moving workbench, the lifting frame is in the low position, and the stripping sheet is located in the concave position of the moving workbench. The mechanical arm takes the sheet material from the storage device to the processing position of the moving workbench. The pressing block 44 of the mechanical arm pushes the sheet material downward. The positioning hole of the sheet material is sleeved with the positioning pin at the processing position, so as to realize preliminary positioning. Then, the negative pressure air pipe joint of the processing table is vacuumized, so that the sheet material is further positioned by the vacuum hole. After the main shaft is processed, the negative pressure air pipe joint stops vacuumizing. The sheet material is first released by the vacuum hole. At this time, due to the reasons such as that the vacuum is not immediately released completely and the processing liquid is adhered, the sheet material may be adhered to the processing table. Therefore, the lifting frame is lifted to the high position under the action of the lifting frame driving mechanism. Since the driving cylinder 251 is installed upside down in the embodiment, the piston rod of the driving cylinder 251 is pulled back. The cylinder connecting block 256 is lifted upward. The linkage block 252 is driven by the cylinder connecting block 256 to rise. The linkage block 252 drives the linkage rod 255 to rise, so that the transverse rod 221 and the longitudinal rod 222 are also lifted. The stripping sheet 23 on the transverse rod and the longitudinal rod pushes the sheet material 9 upward, so as to "pull" the positioning hole of the sheet material 9 from the positioning pin 21. The stripping sheet pulls the sheet material upward around the positioning pin in the whole process, so that the sheet material is evenly and stably separated from the positioning pin. Then, the mechanical arm takes away the sheet material, and the next round of feeding and processing is performed. The above process is repeated.

[0086] The pin positioning automatic feeding and fine carving machine provided by the embodiment of the present application is described in detail. The principle and implementation mode of the present application are described by applying specific examples. The above embodiment is only used to help understand the core idea of the present application. Meanwhile, according to the idea and method of the present application, the specific implementation mode and application range will be changed by the general technical personnel in the field. According to the above, the content of the specification should not be understood as the limitation of the present application.

Claims

1. A pin positioning automatic feeding and engraving machine, comprising a bed, a moving workbench, a machining spindle and a material taking and placing manipulator, characterized in that, The storage device is installed on the front side of the bed body and comprises a storage seat for carrying the sheet material, a positioning pin rod for penetrating the positioning hole of the sheet material when the sheet material is stacked, a lifting mechanism comprising a lifting rod and a lifting drive unit for driving the lifting rod, a through hole corresponding to the position of the lifting rod on the storage seat, a supporting plate provided on the storage seat, and a supporting plate supported by the lifting rod passing through the through hole of the storage seat so that the sheet material on the supporting plate can be integrally linked with the lifting rod. The supporting plate can be gradually lifted with the lifting rod so that the sheet material on the supporting plate can be separated from the top end of the positioning pin rod.

2. The pin positioning automatic feeding precise carving machine according to claim 1, characterized in that, The moving workbench is used to carry the sheet material to form a processing position, and a positioning pin for adapting to the positioning hole on the edge of the sheet material is arranged on the moving workbench. The periphery of the moving workbench is provided with a lifting frame, and the lifting frame is provided with a material removing piece extending towards the positioning pin on the workbench. The edge of the processing position of the moving workbench is provided with a recess lower than the carrying surface of the moving workbench, so that when the material removing piece is located in the recess, the upper surface of the material removing piece does not protrude above the carrying surface of the moving workbench. The moving workbench is also provided with a lifting frame driving mechanism for driving the lifting frame to push the edge of the sheet material upwards to separate the positioning hole of the sheet material from the positioning pin.

3. The pin positioning automatic feeding precise carving machine according to claim 2, characterized in that, The mechanical hand has a pick-and-place unit for picking up the sheet material and a moving seat for carrying the pick-and-place unit. The edge of the moving seat is also provided with a pressing cylinder and a pressing block that moves up and down under the action of the pressing cylinder. When the pick-and-place unit picks up the sheet material, the pressing block is positioned at the periphery of the positioning hole of the sheet material. When the mechanical hand moves the sheet material from the storage device to the processing position of the moving workbench, the pressing block pushes the sheet material downwards so that the positioning hole of the sheet material is fitted into the positioning pin of the moving workbench.

4. The pin positioning automatic feeding precise carving machine according to claim 1, characterized in that, The positioning pin rod comprises a penetrating part and a release part at the upper end of the penetrating part. The outer diameter of the penetrating part is equal to the inner diameter of the positioning hole of the sheet material to form an interference fit for penetration. The outer diameter of the release part is smaller than the inner diameter of the positioning hole of the sheet material to form a gap for penetration, so that when the supporting plate is lifted by one thickness of the sheet material, the positioning hole of the uppermost sheet material is extruded from the penetrating part of the positioning pin rod to the release part of the positioning pin rod. A rod head with gradually decreasing diameter is extended upwards at the upper end of the release part.

5. The pin positioning automatic feeding precise carving machine according to claim 4, characterized in that, The lower surface of the pressing block is provided with a recess hole corresponding to the positioning pin. When the mechanical hand moves the sheet material from the storage device to the processing position of the moving workbench, the pressing block pushes the sheet material downwards, and the recess hole is fitted into the positioning pin of the moving workbench corresponding to the positioning hole on the sheet material. The pressing block is hollowed out on the front and back sides or the left and right sides to form an observation window. The moving seat comprises two parallel installation beams, two parallel fixed beams arranged above the installation beams, and installation columns arranged in the transverse direction below the installation beams and perpendicular to the installation beams. The installation columns are installed with suction cup assemblies for picking and placing sheet materials as pick-and-place units. The installation column adopts a square profile with installation grooves on the upper and lower surfaces. The installation beams are provided with installation grooves on the lower surfaces for adjusting the transverse position of the installation columns and are movably installed with the installation columns through adjustment bolts. The fixed beams are provided with adjustment holes for adjusting the position of the installation beams in the longitudinal direction and are movably installed with the installation beams through bolts.

6. The pin positioning automatic feeding precise carving machine according to claim 1, characterized in that, The installation frame is also provided with a storage seat, the storage seat is installed on the installation frame, the storage seat comprises two or more than two arranged independent storage plates, each storage plate is provided with a supporting plate and a positioning pin rod, each storage plate is provided with a through hole, the lifting mechanism is provided with a lifting rod which supports the supporting plate through the through hole, the number of the lifting rod is two or more than two and is correspondingly arranged on both sides of the storage plate, the storage plate is provided with a large-diameter through hole which can be shared by the lifting rod or the storage plate is provided with a through hole which matches the number and aperture of the lifting rod, the moving workbench is provided with two or more than two arranged machining positions, and each machining position is correspondingly provided with a positioning pin at the edge.

7. The pin positioning automatic feeding precise carving machine according to claim 1, characterized in that, The two sides of the storage plate are provided with handles for convenient extraction, the storage plates are arranged on the installation frame, the installation frame is provided with a buckle mechanism for stabilizing the storage plates on the installation frame, the buckle mechanism comprises a clamping seat fixed on the installation frame and an L-shaped pressing block, one end of the L-shaped pressing block is hinged to the clamping seat, the free end of the L-shaped pressing head is used for pressing the storage plate, and the hinged end of the L-shaped pressing block is also hinged to a handle, one end of the handle is hinged to a connecting piece, and the other end of the connecting piece is hinged to the clamping seat.

8. The pin positioning automatic feeding precise carving machine according to claim 1, wherein, The installation frame is also provided with an installation plate which matches the number of the storage plates, the installation plate is provided with a guide hole at a position corresponding to the through hole of the storage plate, the guide hole is correspondingly provided with a sleeve bearing which is matched with the lifting rod, the storage plate is installed on the installation frame through the installation plate, the middle part of the installation plate is provided as an open window, and the bottom of the installation plate is provided with two positioning rods within the range of the open window.

9. The pin positioning automatic feeding precise carving machine of claim 6, wherein, The installation frame is also provided with an installation plate which matches the number of the storage plates, the installation plate is provided with a guide hole at a position corresponding to the through hole of the storage plate, the guide hole is correspondingly provided with a sleeve bearing which is matched with the lifting rod, the storage plate is installed on the installation frame through the installation plate, the middle part of the installation plate is provided as an open window, and the bottom of the installation plate is provided with two positioning rods within the range of the open window. The installation frame is also provided with an installation plate which matches the number of the storage plates, the installation plate is provided with a guide hole at a position corresponding to the through hole of the storage plate, the guide hole is correspondingly provided with a sleeve bearing which is matched with the lifting rod, the storage plate is installed on the installation frame through the installation plate, the middle part of the installation plate is provided as an open window, and the bottom of the installation plate is provided with two positioning rods within the range of the open window.

10. The pin positioning automatic feeding precise carving machine of claim 6, wherein, The lifting mechanism further comprises two lifting cross beams arranged on both sides of the storage plate, a lifting rod corresponding to the through hole is arranged on the lifting cross beam, the lifting cross beams on both sides are connected through a connecting beam, the lifting drive unit drives the lifting cross beams to lift, the connecting beam has two and is fixed into a square frame structure with the two lifting cross beams, the mounting frame is respectively fixed with a driving plate on both sides, lifting sliding tracks are respectively arranged on the driving plates on both sides, driving wheels and driven wheels are respectively arranged on the driving plates on both sides through bearing seats, the driving wheels are connected with the driven wheels through chains or belts, a moving block linked with the belt or chain is arranged on the belt or chain, the moving block moves along the lifting sliding track, the lifting drive unit comprises a driving motor, the driving motor is arranged on one of the driving plates, the output end of the driving motor is used to drive the driving wheel on the driving plate to rotate forward and backward, the two driving wheels on the driving plates on both sides are integrally rotated through a linkage shaft or the two driven wheels on the driving plates on both sides are integrally rotated through a linkage shaft, the two moving blocks on the driving plates on both sides are respectively mounted on the two connecting beams so that the connecting beams can drive the lifting rods on the lifting cross beams to lift.

11. The pin positioning automatic feeding precise carving machine of claim 6, wherein, The mounting frame comprises two sliding block seats extending forward to form load-bearing rods, the sliding block seats are provided at rear ends with mounting frame sliding blocks adapted to sliding rails arranged on the front side of the machine tool bed, two load-bearing cross beams are mounted on the load-bearing rods in the front-rear direction, and the storage seat is mounted on the load-bearing cross beams.

12. The pin positioning automatic feeding precise carving machine according to claim 1, characterized in that, An finished product material table for storing processed sheet materials is arranged above the storage seat, a material table track extending in the front-rear direction is arranged below the finished product material table, a material table drive assembly for driving the finished product material table to move along the material table track so that the finished product material table is stacked or staggered with the storage seat is further arranged, and a mounting frame is further arranged, the material table track is arranged on both sides of the mounting frame in the front-rear direction, the storage seat and the material table drive assembly are respectively mounted on the mounting frame, the finished product material table is mounted on the material table track and located on the upper layer of the storage seat, the mounting frame further comprises mounting plates matched with the number of the storage plates, guide holes are arranged on the mounting plates at positions corresponding to the through holes of the storage plates, and track support tables extending upward are arranged on the outer sides of the mounting plates at both ends, and the track support tables are mounted with the material table tracks.

13. The pin positioning automatic feeding precise carving machine according to claim 12, characterized in that, The material table drive assembly comprises a material table drive cylinder arranged on one side of the finished product material table, a material table drive swing rod, and a material table drive connecting rod, the cylinder body of the material table drive cylinder is hinged to the mounting frame, the piston rod end of the material table drive cylinder is hinged to the middle position of the material table drive swing rod, the lower end of the material table drive swing rod is hinged to the lower position of the mounting frame, the upper end of the material table drive swing rod is hinged to one end of the material table drive connecting rod, the other end of the material table drive connecting rod is hinged to the finished product material table, the material table drive swing rod and the material table drive connecting rod are symmetrically arranged on the other side of the finished product material table, and the lower ends of the material table drive swing rods on both sides of the finished product material table are synchronously rotated through a transmission rod.

14. The pin positioning automatic feeding precise carving machine of claim 6, wherein, The processing position on the moving workbench is provided with a bearing plate, the upper surface of the bearing plate serves as a working surface for bearing sheet materials, the area of the bearing plate is smaller than the area of the processing position of the moving workbench, so that a stepped surface is formed at the edge of the processing position of the moving workbench as a recess, and a positioning pin is arranged on the recess formed by the stepped surface.

15. The pin positioning automatic feeding precise carving machine according to claim 14, characterized in that, Each processing position is provided with two positioning pins on the adjacent edges, and two corresponding stripping pieces are provided on the lifting frame corresponding to each processing position.

16. The pin positioning automatic feeding precise carving machine according to claim 14, characterized in that, Each processing position is provided with two positioning pins on the adjacent edges, and two corresponding stripping pieces are provided on the lifting frame corresponding to each processing position.

17. The pin positioning automatic feeding precise carving machine according to claim 16, characterized in that, The lifting frame comprises a horizontal rod arranged close to the outer periphery of the moving table and a longitudinal rod mounted on the horizontal rod, and the horizontal rod and the longitudinal rod are respectively provided with stripping pieces corresponding to the positioning pins at the processing positions.

18. The pin positioning automatic loading precise carving machine according to claim 17, characterized in that, The lifting frame comprises a horizontal rod arranged close to the outer periphery of the moving table and a longitudinal rod mounted on the horizontal rod, and the horizontal rod and the longitudinal rod are respectively provided with stripping pieces corresponding to the positioning pins at the processing positions.

19. The pin positioning automatic feeding precise carving machine according to claim 1, characterized in that, The lifting frame comprises a horizontal rod arranged close to the outer periphery of the moving table and a longitudinal rod mounted on the horizontal rod, and the horizontal rod and the longitudinal rod are respectively provided with stripping pieces corresponding to the positioning pins at the processing positions.

20. The pin positioning automatic feeding precise carving machine according to claim 1, wherein, The lifting frame comprises a horizontal rod arranged close to the outer periphery of the moving table and a longitudinal rod mounted on the horizontal rod, and the horizontal rod and the longitudinal rod are respectively provided with stripping pieces corresponding to the positioning pins at the processing positions. The lifting frame comprises a horizontal rod arranged close to the outer periphery of the moving table and a longitudinal rod mounted on the horizontal rod, and the horizontal rod and the longitudinal rod are respectively provided with stripping pieces corresponding to the positioning pins at the processing positions. The lifting frame comprises a horizontal rod arranged close to the outer periphery of the moving table and a longitudinal rod mounted on the horizontal rod, and the horizontal rod and the longitudinal rod are respectively provided with stripping pieces corresponding to the positioning pins at the processing positions.

21. The pin positioning automatic feeding precise carving machine according to claim 20, characterized in that, The mobile workbench has a platform, a machining table is arranged above the platform, left and right sides below the platform are respectively provided with longitudinally extending platform bases, a space for installing platform sliders is formed between the two platform bases, the outer sides of the two platform bases are respectively provided with reinforcing blocks for reinforcing the connection between the platform and the platform bases, vertical tracks are arranged on the outer side surfaces of the reinforcing blocks, the lifting frame driving mechanism comprises driving cylinders installed on the lower side of the mobile workbench, the number of the driving cylinders is two, the driving cylinders are symmetrically arranged on the left and right sides of the mobile workbench, the bases of the driving cylinders are fixed on the lower side of the mobile workbench to form an inverted installation, the piston rods of the driving cylinders extend downward, a cylinder connecting block extending outward is installed on the piston rod, a linkage block is fixedly connected to the cylinder connecting block, the linkage block comprises a longitudinal driving block fixedly installed on the cylinder connecting block, the longitudinal driving block extends to the front and back sides, linkage rods extending upward are arranged at the two ends of the longitudinal driving block, and the top ends of the two linkage rods support the front and back transverse rods of the rectangular frame.

Images