A loading and unloading device for CNC machine tools

Abstract

The present invention provides a loading and unloading device for a CNC machine tool in the technical field of sheet metal processing, comprising a material rack, a fixed beam and a cross beam fixed above the material rack, the cross beam being below the fixed beam, a suction cup rack movable along the length direction of the fixed beam connected to the fixed beam, a plurality of suction cups connected to the suction cup rack, a material unloading arm movable along the length direction of the cross beam connected to the cross beam, and at least one clamp for clamping materials arranged on the material unloading arm; the present invention has high efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of sheet metal processing, and in particular relates to a loading and unloading device for a numerically controlled machine tool. Background Art

[0002] CNC machine tools are often used to process sheet materials such as plates. Before processing the plate, the plate needs to be loaded first. After the plate processing is completed, the formed plate needs to be unloaded. In the prior art, a loading device is set at one end of the CNC machine tool, and the loading device includes a material rack, and a conveyor belt is connected to the material rack. There is a worker at the end of the conveyor belt away from the CNC machine tool, and another worker at the end of the conveyor belt close to the CNC machine tool. One worker places the plate on the conveyor belt, and the conveyor belt moves. When the conveyor belt automatically transports the plate to the position of another worker, the other worker takes the plate and places it on the processing station of the CNC machine tool. After the plate processing is completed, the plate is taken down to complete the unloading of the plate. The loading and unloading efficiency is low and the labor cost is high. Summary of the invention

[0003] In view of the defects in the prior art, the purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art and provide a loading and unloading device for a CNC machine tool to solve the problem of low efficiency in the prior art. The present invention has high efficiency.

[0004] The objective of the present invention is achieved in this way: a loading and unloading device for a CNC machine tool comprises a material rack, a fixed beam and a cross beam are fixed above the material rack, the cross beam is below the fixed beam, a suction cup rack that can move along the length direction of the fixed beam is connected to the fixed beam, a plurality of suction cups are connected to the suction cup rack, a material unloading arm that can move along the length direction of the cross beam is connected to the cross beam, and at least one clamp for clamping materials is arranged on the material unloading arm.

[0005] In the present invention, a CNC machine tool for processing plates is provided on one side of the material rack in the left and right directions, and the fixed beam extends in the direction of the CNC machine tool. The clamp is a prior art and is not described in detail in this application. During operation, the suction cup frame moves to the position where the raw material is placed, the suction cup acts to suck the plate and lift the suction cup frame. After the suction cup frame rises to a set height, the suction cup frame stops lifting and lowering, and the suction cup frame moves along the fixed beam in the direction of the CNC machine tool. When the unprocessed plate moves to the position to be processed, the suction cup releases the unprocessed plate, and the suction cup frame returns to the raw material storage place. After the plate processing is completed, the unloading arm moves toward the direction of the CNC machine tool, and when the clamp moves to the position of the processed plate, the clamp acts, the clamp acts, the clamp clamps the plate, and the unloading arm moves in the opposite direction. When the processed plate moves to the unloading station, the clamp acts in the opposite direction to release the processed plate, and the processed plate falls onto the unloading station, thereby realizing the loading and unloading of materials. The loading and unloading actions do not affect each other, the operation is reliable, and the efficiency is high. It can be applied to the loading and unloading work of CNC machine tools.

[0006] In order to further realize the left and right movement and lifting of the suction cup frame, the fixed beam is slidably connected to a moving seat, the moving seat is rotatably connected to an upper moving gear and a lifting gear, the fixed beam is fixedly connected to an upper fixed rack, the upper moving gear is meshed with the upper fixed rack, and the moving seat is connected to a lifting rod that can move up and down and is vertically arranged, the outer side of the lifting rod is fixedly connected to a lifting rack, the lifting gear is meshed with the lifting rack, and the lifting rod extends downwardly out of the moving seat and is connected to the suction cup frame; in this design, a moving motor and a lifting motor are fixedly connected to the moving seat, the moving motor is transmission connected to the upper moving gear, and the lifting motor is transmission connected to the lifting gear. When working, the suction cup frame moves to the position of sucking raw materials, and the suction cup moves to suck the raw materials.

[0007] In order to further realize the left and right movement of the clamp, a sliding seat is slidably connected to the crossbeam, a lower moving gear is rotatably connected to the sliding seat, a lower fixed rack is fixedly connected to the crossbeam, and the lower moving gear is meshed with the lower fixed rack.

[0008] In order to further realize automatic unloading, the beam has an installation cavity, and a plurality of connection ports connected to the installation cavity are opened on the downward side of the beam. The beam is connected with a linear drive through the connection port, and a connecting plate is fixedly connected to the linear drive. The linear drive is inserted into the installation cavity through the connection port, and the connecting plate abuts against the beam and is connected to the beam. A unloading rod that can reciprocate in the height direction is connected to the linear drive, and a unloading plate is connected to the downward end of the unloading rod, and a plurality of unloading teeth are arranged on the downward side of the unloading plate.

[0009] In order to further facilitate unloading, a unloading platform that can move in the front-to-back direction is connected to the material rack below the clamp, and a material placement rack that can move in the front-to-back direction is connected to the material rack below the unloading platform, and a material tray is provided on the upper side of the material placement rack.

[0010] In order to further realize the forward and backward movement of the material loading platform, at least one material unloading driver is fixedly connected to the material loading platform, and the material unloading driver is connected to a pushing rod that can move back and forth in a linear manner in the forward and backward directions, and the pushing rod is connected to one end of the material loading platform that extends forward.

[0011] In order to further realize the forward and backward movement of the unloading platform, at least one pushing driver is fixedly connected to the material rack, and the pushing driver is connected to a magnetic ring sleeve that can move back and forth in a linear manner in the forward and backward directions, and the magnetic ring sleeve is fixedly connected to the unloading platform.

[0012] In order to further improve the reliability of the forward and backward movement of the unloading platform and the material loading platform, the left and right ends of the unloading platform are respectively rotatably connected with at least two movable rollers, and the movable rollers can roll along the material rack. The left and right ends of the material loading platform are respectively rotatably connected with at least two unloading rollers, and the unloading rollers can roll along the material rack.

[0013] As a further improvement of the present invention, a raw material table is further provided in the material rack, and the raw material table is below the material placing rack.

[0014] The cam is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate is provided with a toothed plate, and the toothed plate BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The three-dimensional structure of the present invention Figure 1 .

[0016] Figure 2 The three-dimensional structure of the present invention Figure 2 .

[0017] Figure 3 The three-dimensional structure of the present invention Figure 3 .

[0018] Figure 4 for Figure 3 A partial enlarged view of point A in the middle.

[0019] Figure 5 The three-dimensional structure of the present invention Figure 4 .

[0020] Figure 6 for Figure 5 A partial enlarged view of point B in the middle.

[0021] Figure 7 The three-dimensional structure of the present invention Figure 5 .

[0022] Figure 8 The three-dimensional structure of the present invention Figure 6 .

[0023] Fig. 9 The three-dimensional structure of the present invention Figure 7 .

[0024] Fig.10 for Fig. 9 A partial enlarged view of point C in the middle.

[0025] Fig.11 The three-dimensional structure of the blanking plate and the linear drive in the present invention is connected Figure 1 .

[0026] Fig.12 The three-dimensional structure of the blanking plate and the linear drive in the present invention is connected Figure 2 .

[0027] Fig.13 It is a three-dimensional structural diagram of the crossbeam in the present invention.

[0028] Fig.14 It is a three-dimensional structural diagram of the fixing seat and the mounting shaft connected together in the present invention.

[0029] Fig.15 for Figure 2 A partial enlarged view of point D in the middle.

[0030] Fig.16 It is a schematic diagram of the structure having the lubrication function in the present invention.

[0031] Fig.17 It is a three-dimensional diagram of the driving feeding action structure in the present invention.

[0032] Fig.18 The three-dimensional structure of the present invention Figure 8 .

[0033] Fig.19 for Fig.18 A partial enlarged view of point E in the middle.

[0034] Fig. 20 It is a three-dimensional structural diagram for realizing the material measuring function in the present invention.

[0035] Fig.21 for Figure 1 A partial enlarged view of point F in the middle.

[0036] Among them, 1 material placement rack, 2 material unloading platform, 3 lower fixed rack, 4 raw material platform, 5 material rack, 6 CNC machine tool, 7 fixed beam, 8 upper fixed rack, 9 lifting rod, 10 moving seat, 11 suction cup rack, 12 unloading plate, 13 crossbeam, 14 material tray, 15 material measuring switch, 16 unloading arm, 17 unloading roller, 18 suction cup, 19 fixed seat, 20 unloading motor, 21 lower moving gear, 22 lifting motor, 23 lifting rack, 24 mobile motor, 25 lifting gear, 26 unloading gear, 27 clamp, 28 push rod, 29 unloading driver, 30 magnetic ring sleeve, 31 push driver, 3 2 moving roller, 33 unloading rod, 34 connecting plate, 35 linear drive, 36 connecting port, 37 mounting cavity, 38 internal oil outlet, 39 oil inlet, 40 mounting shaft, 41 lubrication gear, 42 external oil hole, 43 upper moving gear, 44 material measuring driver, 45 movable guide block, 46 movable guide plate, 47 measuring roller two, 48 measuring roller one, 49 fixed guide plate, 50 guide rod, 51 fixed guide block, 52 measuring rod, 53 mounting seat, 54 thickness measuring sensor sheet, 55 tension spring, 56 sliding seat, 57 placing plate, 5701 brush, 58 gap, 59 spreader. DETAILED DESCRIPTION

[0037] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0038] like Figure 1 to Figure 21The material loading and unloading device for a CNC machine tool shown in the figure comprises a material rack 5, a fixed beam 7 and a cross beam 13 are fixed above the material rack 5, the cross beam 13 is below the fixed beam 7, a suction cup rack 11 which can move along the length direction of the fixed beam 7 is connected to the fixed beam 7, a plurality of suction cups 18 are connected to the suction cup rack 11, and a structure for realizing left and right movement of the suction cup rack 11 is specifically as follows: a moving seat 10 is slidably connected to the fixed beam 7, an upper moving gear 43 and a lifting gear 25 are rotatably connected to the moving seat 10, and the fixed beam 7 is connected to the upper moving gear 43 and the lifting gear 25. An upper fixed rack 8 is fixedly connected to the upper part, and an upper moving gear 43 meshes with the upper fixed rack 8. A lifting rod 9 that can move up and down and is vertically arranged is connected to the moving seat 10. A lifting rack 23 is fixedly connected to the outer side of the lifting rod 9, and a lifting gear 25 meshes with the lifting rack 23. The lifting rod 9 extends downwardly out of the moving seat 10 and is connected to the suction cup frame 11. A moving motor 24 and a lifting motor 22 are fixedly connected to the moving seat 10. The moving motor 24 is transmission-connected to the upper moving gear 43, and the lifting motor 22 is transmission-connected to the upper moving gear 43. The lifting gear 25 is connected by transmission; at least one clamp 27 for clamping the material is arranged on the unloading arm 16, and two clamps 27 are provided. The structure for realizing the left and right movement of the clamp 27 is specifically as follows: a sliding seat 56 is slidably connected to the cross beam 13, the unloading arm 16 is connected to the sliding seat 56, the lower moving gear 21 is rotatably connected to the sliding seat 56, the lower fixed rack 3 is fixedly connected to the cross beam 13, the lower moving gear 21 is meshed with the lower fixed rack 3, and the unloading motor is fixedly connected to the sliding seat 56. 20, the unloading motor 20 is transmission-connected with the lower moving gear 21, and the moving seat 10 is also fixedly connected with a fixed seat 19, and a mounting shaft 40 is provided at one end of the fixed seat 19 facing the lower fixed rack 3, and a lubrication gear 41 is rotatably connected to the mounting shaft 40, and the lubrication gear 41 is meshed with the upper fixed rack 8. A plurality of external oil holes 42 are arranged on the periphery of the lubrication gear 41, an oil inlet 39 is provided on the fixed seat 19, and an internal oil outlet hole 38 is opened on the mounting shaft 40, and the internal oil outlet hole 38 is connected with the external oil hole 42.

[0039] In order to further realize automatic unloading, the crossbeam 13 has an installation cavity 37, and a plurality of connection ports 36 connected to the installation cavity 37 are opened on the downward side of the crossbeam 13. The crossbeam 13 is plugged with a linear drive 35 through the connection port 36. The linear drive 35 is fixedly connected with a connection plate 34. The linear drive 35 is inserted into the installation cavity 37 through the connection port 36. The connection plate 34 abuts against the crossbeam 13 and is connected to the crossbeam 13. The linear drive 35 is connected with a unloading rod 33 that can reciprocate in the height direction. The downward end of the rod 33 is connected to a feeding plate 12, and a plurality of feeding teeth 26 are arranged on the downward side of the feeding plate 12; a feeding table 2 that can move in the front-to-back direction is connected to the material rack 5 below the clamp 27, and a plurality of placing plates 57 are connected to the upper side of the feeding table 2, and a brush 5701 is provided on the placing plate 57, and a gap 28 is left between the brushes 5701 on two adjacent placing plates 57, and the position of the feeding teeth 26 corresponds to the position of the gap 28. The structure for realizing the forward and backward movement of the feeding table 2 is specifically as follows: There are two push drive 31 fixedly connected, and the two push drive 31 is respectively arranged on the left and right ends of the material rack 5 facing inward, and the push drive 31 is connected with a magnetic ring sleeve 30 that can make reciprocating linear movement in the front and rear directions, and the magnetic ring sleeve 30 is fixedly connected to the unloading platform 2, and the left and right ends of the unloading platform 2 are respectively rotatably connected with two moving rollers 32, and the moving rollers 32 can roll along the material rack 5, and the material rack 5 below the unloading platform 2 is connected with a material placing platform 1 that can move in the front and rear directions, and the material placing platform 1 is connected with a material placing platform 1 that can move in the front and rear directions. A material tray 14 is provided on the side, and the structure for realizing the forward and backward movement of the material placement platform 1 is specifically as follows: two material discharge drivers 29 are fixedly connected to the material rack 5, and the two material discharge drivers 29 are respectively arranged on the left and right ends of the material rack 5 facing inward, and the material discharge driver 29 is connected to a pushing rod 28 that can make reciprocating linear movements in the front and rear directions, and the pushing rod 28 is connected to the end of the material placement platform 1 that extends forward, and the left and right ends of the material placement platform 1 are respectively rotatably connected to two material discharge rollers 17, and the material discharge rollers 17 can roll along the material rack 5.

[0040] In addition, a raw material table 4 is also provided in the material rack 5, and the raw material table 4 is below the material placement platform 1; the material rack 5 is also fixedly connected to a mounting seat 53, and a material measuring driver 44 is fixedly connected to the upper side of the mounting seat 53, and a material measuring rod 52 which can reciprocate in the length direction and extend toward the direction of the raw material table 4 is connected to the material measuring driver 44, and the end of the material measuring rod 52 extending outward is fixedly connected to a fixed guide block 51, and a fixed guide plate 49 is fixedly connected to the fixed guide block 51, and a material measuring roller 48 is rotatably connected to the end of the fixed guide plate 49 extending out of the guide block, and two guide rods 50 which can move in the height direction are connected to the fixed guide block 51, and a movable guide is connected to the lower side of the guide rod 50. Block 45, a movable guide plate 46 is fixedly connected to the movable guide block 45, one end of the movable guide plate 46 extending out of the movable guide block 45 is rotatably connected to a material measuring roller 2 47, one end of a tension spring 55 is connected to the guide block between the two guide rods 50, and the other end of the tension spring 55 is connected to the movable guide plate 46. When not subjected to external force, the opposite sides of the material measuring roller 1 48 and the material measuring roller 2 47 are fitted together, a thickness measuring sensor sheet 54 is fixedly connected to the movable guide plate 46, a material measuring switch 15 is connected to the fixed guide block 51, and the sensing end of the material measuring switch 15 is arranged relative to the upper side of the thickness measuring sensor sheet 54, and a spreader 59 (the spreader 59 is a prior art) is arranged between the mounting seat 53 and the raw material table 4.

[0041] The method for loading and unloading materials using a loading and unloading device comprises the following steps:

[0042] (1) The suction cup frame 11 descends. When the suction cup 18 contacts the unprocessed sheet, the suction cup frame 11 stops descending, the suction cup 18 moves, the unprocessed sheet is sucked up, the lower side of the unprocessed sheet is flush with the height of the upper edge of the measuring roller 47, and the suction cup frame 11 stops rising;

[0043] (2) The material measuring driver 44 is activated, so that the material measuring rod 52 extends toward the direction of the plate, and the unprocessed plate sucked up is inserted between the material measuring roller 1 48 and the material measuring roller 2 47. The material measuring switch 15 senses the change in the distance between the sensing end and the thickness measuring sensor sheet 54;

[0044] (3) If the thickness detected is that of a single sheet, the material measuring driver 44 moves in the reverse direction, the material measuring rod 52 is reset, the separator 59 does not move, and the process goes to step (4). If the thickness detected is not that of a single sheet, the separator 59 moves for 1-2 seconds, stops moving, and the process goes to step (2).

[0045] (4) The suction cup frame 11 moves toward the direction of the CNC machine tool 6, the unprocessed plate moves to the waiting processing position, the suction cup frame 11 stops moving, the suction cup frame 11 descends, the unprocessed plate descends to the waiting processing position, the suction cup frame 11 stops moving, and the suction cup 18 is released;

[0046] (5) The unloading motor 20 is activated to move the sliding seat 56 toward the direction where the formed sheet is located. If the sheet is processed, the clamp 27 is activated to clamp the formed sheet, and the unloading motor 20 is activated in the reverse direction. When the formed sheet moves to the position of the unloading table 2, the unloading motor 20 stops, the clamp 27 is released, and the formed sheet falls onto the unloading table 2. At the same time, the process returns to step (1). If the sheet is not processed, the clamp 27 does not activate.

[0047] (6) The push drive 31 is actuated to move the magnetic ring sleeve 30 backwards, and the magnetic ring sleeve 30 drives the unloading platform 2 to move backwards. When the front side of the unloading platform 2 moves to the set position behind the unloading plate 12, the process returns to step (3), and the push drive 31 is actuated in the reverse direction. At the same time, the linear drive 35 is actuated to move the unloading rod 33 downwards. When the unloading tooth 26 can contact the formed sheet material and the lower side of the unloading tooth 26 is higher than the specified position on the upper side of the unloading platform 2, the linear drive 35 stops actuating.

[0048] (7) The push drive 31 continues to move in the reverse direction, the unloading teeth 26 block the formed sheet, and the unloading table 2 continues to move forward. When the rear side of the unloading table 2 moves to the position of the unloading teeth 26, the formed sheet falls onto the material tray 14. When the unloading table 2 is reset, the push drive 31 stops moving;

[0049] (8) When all plates are being processed, turn off all powered devices. If processing is not completed, continue with the above steps.

[0050] In the present invention, in the initial state, the suction cup frame 11 is above the unprocessed plate, and a CNC machine tool 6 for processing the plate is provided on one side of the material frame 5 in the left-right direction. The fixed beam 7 extends in the direction of the CNC machine tool 6. The clamp 27 is a prior art and is not described in detail in this application. In the initial state, the suction cup frame 11 is directly above the raw material table 4, and several layers of unprocessed plates are placed on the raw material table 4. The linear drive 35, the material measuring drive 44, the feeding drive and the pushing drive 31 are preferably cylinders; when working, the lifting motor 22 is actuated, and the lifting motor 22 drives the rotation of the lifting gear 25, and the lifting rack 23 moves in the height direction. The action direction of the lifting motor 22 is controlled to make the lifting rack 23 descend, and the lifting gear 25 drives the lifting rod 9 to descend. The suction cup frame 11 moves to the position where the raw material is placed, the lifting motor 22 stops, the suction cup 18 moves to suck the plate, the lifting motor 22 reverses, and after the unprocessed plate rises to the set height, the lifting motor 22 stops, the moving motor 24 moves, the moving motor 24 drives the upper moving gear 43 to rotate, the upper moving gear 43 rotates along the upper fixed rack 8, the upper moving gear 43 drives the moving seat 10 to move, and the moving seat 10 drives the suction cup frame 11 to move. When the unprocessed plate moves to the position to be processed, the moving motor 24 stops, the suction cup 18 is released, the unprocessed plate falls, the moving motor 24 reverses, the moving seat 10 moves reversely, and when the moving seat 10 is reset, the moving motor 24 stops; after the plate processing is completed, the unloading motor 20 The unloading motor 20 drives the lower moving gear 21 to rotate, and the lower moving gear 21 rotates along the lower fixed rack 3. The lower moving gear 21 drives the movement of the sliding seat 56, controls the movement direction of the unloading motor 20, and moves the sliding seat 56 in the direction of the CNC machine tool 6. When the clamp 27 reaches the position where the formed sheet can be clamped, the unloading motor 20 stops, the clamp 27 moves, and the clamp 27 clamps the formed sheet. The unloading motor 20 moves in the opposite direction. When the formed sheet moves above the unloading table 2, the unloading motor 20 stops, the clamp 27 is released, and the formed sheet falls onto the unloading table 2. The push drive 31 moves to move the magnetic ring sleeve 30 backward, and the magnetic ring sleeve 30 drives the unloading table 2 to move backward, until the front side of the unloading table 2 moves to the unloading plate 1 2, the next loading is carried out according to the loading steps, the push drive 31 stops, the push drive 31 reverses, and at the same time, the linear drive 35 moves to move the unloading rod 33 downward, when the unloading teeth 26 can contact the formed sheet and the lower side of the unloading teeth 26 is higher than the specified position on the upper side of the unloading table 2, the linear drive 35 stops, the push drive 31 continues to reverse, the unloading teeth 26 blocks the formed sheet, the unloading table 2 keeps moving forward, and when the rear side of the unloading table 2 moves to the position of the unloading teeth 26, the formed sheet falls onto the material tray 14, and when the unloading table 2 is reset, the push drive 31 stops. When a new sheet is processed, unloading is completed according to the above steps, and loading and unloading work together with high efficiency;When a certain amount of formed sheets are piled on the unloading table 2, the height of the piled formed sheets is lower than the height of the lower side of the loading table, the unloading driver 29 is actuated to extend the push rod 28 forward, and the push rod 28 pushes the material placement platform 1 to move forward, and the unloading roller 17 rolls forward along the material rack 5. When the material placement platform 1 moves to just above the raw material platform 4, the unloading driver 29 stops and transports the material tray 14 away, and then places a new material tray 14 on the material placement platform 1. The unloading driver 29 reverses and when the material placement platform 1 moves to the top of the raw material platform 4, the unloading driver 29 stops and transports the material tray 14 away, and then places a new material tray 14 on the material placement platform 1. The unloading driver 29 reverses and 1 When reset, the unloading driver 29 stops; the present invention realizes automatic loading and unloading of materials, and the loading and unloading actions are coordinated and reliable; when the lubricating gear 41 moves, the lubricating oil enters the mounting shaft 40 from the oil inlet 39, and the lubricating oil flows to the lubricating gear 41 through the inner oil hole and the outer oil hole on the lubricating gear 41 in turn, and oils the upper fixed rack 8, so that the upper fixed rack 8 is always in a lubricated state, ensuring the smooth movement of the moving seat 10; it can be applied to the loading and unloading work of the CNC machine tool 6. ;

[0051] The present invention is not limited to the above-mentioned embodiments. On the basis of the technical solution disclosed in the present invention, technicians in this field can make some substitutions and deformations to some technical features therein according to the disclosed technical content without creative labor, and these substitutions and deformations are all within the protection scope of the present invention.

Claims

1. A loading and unloading device for a CNC machine tool, comprising a material rack, characterized in that: A fixed beam and a cross beam are fixed above the material rack, and the cross beam is below the fixed beam. A suction cup frame that can move along the length direction of the fixed beam is connected to the fixed beam, and a plurality of suction cups are connected to the suction cup frame. A lower material arm that can move along the length direction of the cross beam is connected to the cross beam, and at least one clamp for clamping the material is arranged on the lower material arm. A raw material table is also provided in the material rack, and the raw material table is below the material placement table. A mounting seat is also fixedly connected to the material rack, and a material measuring driver is fixedly connected to the upper side of the mounting seat, and the material measuring driver is a cylinder. A material measuring rod that can reciprocate in the length direction and extend toward the direction of the raw material table is connected to the material measuring driver, and the outwardly extending end of the material measuring rod is fixedly connected to a guide The guide block is fixedly connected with a fixed guide plate, and the end of the fixed guide plate extending out of the guide block is rotatably connected with a material measuring roller 1. The guide block is connected with two guide rods that can move in the height direction, and the lower side of the guide rod is connected with a movable guide plate, and the end of the movable guide plate extending out of the guide block is rotatably connected with a material measuring roller 2. One end of a tension spring is connected to the guide block between the two guide rods, and the other end of the tension spring is connected to the movable guide plate. When not subject to external force, the opposite sides of the material measuring roller 1 and the material measuring roller 2 are fitted together, and a thickness measuring sensing sheet is fixedly connected to the movable guide plate, and a material measuring switch is connected to the fixed guide block, and the sensing end of the material measuring switch is arranged relative to the upper side of the thickness measuring sensing sheet.

2. The loading and unloading device for a CNC machine tool according to claim 1, characterized in that: The fixed beam is slidably connected to a moving seat, an upper moving gear and a lifting gear are rotatably connected to the moving seat, an upper fixed rack is fixedly connected to the fixed beam, the upper moving gear is meshed with the upper fixed rack, a lifting rod that can move up and down and is vertically arranged is connected to the moving seat, a lifting rack is fixedly connected to the outer side of the lifting rod, the lifting gear is meshed with the lifting rack, and the lifting rod extends downward from one side of the moving seat to be connected to the suction cup frame.

3. The loading and unloading device for a CNC machine tool according to claim 1, characterized in that: The crossbeam is slidably connected to a sliding seat, the sliding seat is rotatably connected to a lower moving gear, the crossbeam is fixedly connected to a lower fixed rack, and the lower moving gear is meshed with the lower fixed rack.

4. The loading and unloading device for a CNC machine tool according to claim 3, characterized in that: The crossbeam has an installation cavity, and a plurality of connection ports connected to the installation cavity are opened on the downward side of the crossbeam. A linear drive is plugged into the crossbeam through the connection port, and a connecting plate is fixedly connected to the linear drive. The linear drive is inserted into the installation cavity through the connection port, and the connecting plate abuts against the crossbeam and is connected to the crossbeam. A feed rod that can reciprocate in the height direction is connected to the linear drive, and a feed plate is connected to the downward end of the feed rod, and a plurality of feed teeth are arranged on the downward side of the feed plate.

5. The loading and unloading device for a CNC machine tool according to claim 3, characterized in that: A material unloading platform movable in the front-rear direction is connected to the material rack below the clamp, a material placing frame movable in the front-rear direction is connected to the material rack below the unloading platform, and a material tray is provided on the upper side of the material placing frame.

6. A loading and unloading device for a CNC machine tool according to claim 5, characterized in that: At least one material unloading driver is fixedly connected to the material rack, and a material unloading driver is connected to a material pushing rod which can perform reciprocating linear movement in the front-rear direction, and the material pushing rod is connected to one end of the material placing platform extending forward.

7. The loading and unloading device for a CNC machine tool according to claim 5, characterized in that: The material rack is also fixedly connected to at least one material pushing driver, and the material pushing driver is connected to a magnetic ring sleeve that can perform reciprocating linear movement in the front and rear directions, and the magnetic ring sleeve is fixedly connected to the unloading platform.

8. A loading and unloading device for a CNC machine tool according to any one of claims 5 to 7, characterized in that: The left and right ends of the unloading platform are respectively rotatably connected with at least two movable rollers, and the movable rollers can roll along the material rack. The left and right ends of the material placement platform are respectively rotatably connected with at least two unloading rollers, and the unloading rollers can roll along the material rack.

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