A smart loading and unloading mechanism for CNC machine tools

Abstract

The present invention discloses an intelligent loading and unloading mechanism for CNC machine tools, which belongs to the technical field of loading and unloading of CNC machine tools, and comprises a frame, wherein the frame comprises an aluminum alloy frame arranged at the bottom and an upper frame arranged at the top, a robot is installed on the upper side of the aluminum alloy frame, and a loading unit and a unloading unit are arranged side by side on the inner side of the aluminum alloy frame; the loading unit and the unloading unit have the same structure, both of which comprise a drawer plate, and a material tray is stacked on the top of the drawer plate, and the drawer plate is driven by a drawer lifting mechanism to move up and down; a suction cup assembly is respectively correspondingly arranged above the loading unit and the unloading unit, and the suction cup assembly is used to suck the material tray; a translation assembly is also arranged above the loading unit and the unloading unit, and the translation assembly enables the material tray to be transferred between the loading unit and the unloading unit. The present invention can improve the degree of automation and work efficiency without manual intervention, and can also improve the progress of loading.

Description

Technical Field

[0001] The invention relates to an intelligent loading and unloading mechanism for a CNC machine tool, belonging to the technical field of loading and unloading of CNC machine tools. Background Art

[0002] CNC machine tools are key equipment widely used in the metal parts manufacturing and processing industry. They have high requirements for processing accuracy and efficiency. With the development of digital control and information technology, the use of robots to complete the loading and unloading of CNC machine tools can realize automated production. Industrial robots are gradually being used more and more widely in the machinery manufacturing industry due to their significant characteristics and advantages such as high degree of automation, good environmental protection and strong practicality. They will become the mainstream auxiliary equipment for modern mechanical processing.

[0003] In the prior art, multi-axis robots are generally used for loading and unloading. The method of feeding the robot manually or by traditional conveyor belts cannot guarantee the loading accuracy, and the labor intensity is high and the work efficiency is low.

[0004] In summary, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Summary of the invention

[0005] In view of the deficiencies in the background technology, the present invention provides an intelligent loading and unloading mechanism for a CNC machine tool, which can improve the degree of automation, work efficiency and loading accuracy without manual intervention.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] An intelligent loading and unloading mechanism for a CNC machine tool comprises a frame, the frame comprising an aluminum alloy frame arranged at the bottom and an upper frame arranged at the top, a robot is installed on the upper side of the aluminum alloy frame, and a loading unit and a unloading unit are arranged side by side on the inner side of the aluminum alloy frame;

[0008] The loading unit and the unloading unit have the same structure, both of which include a drawer plate, and the material tray is stacked on the drawer plate. The drawer plate is driven by a drawer lifting mechanism to move up and down;

[0009] A suction cup assembly is respectively provided above the loading unit and the unloading unit, and the suction cup assembly is used to suck the material tray;

[0010] A translation assembly is also provided above the loading unit and the unloading unit, and the translation assembly enables the material tray to be transferred between the loading unit and the unloading unit.

[0011] Furthermore, the loading unit and the unloading unit also include a vertically arranged mounting plate, and the drawer lifting mechanism includes a vertically arranged screw rod, which is rotatably installed on the side of the mounting plate close to the drawer plate, and the screw rod is driven by a driving system, and the screw rod is threadedly matched with a transmission nut; the drawer plate is slidably installed on the drawer frame through a drawer slide rail, and the transmission nut is fixedly connected to the drawer frame.

[0012] Furthermore, the loading unit and the unloading unit are arranged side by side back to back, so that their mounting vertical plates are arranged relatively close to each other, and their drawer plates are arranged away from each other.

[0013] Furthermore, a limiting device is provided on both sides of the loading unit and the unloading unit respectively, and the limiting device includes a tray limiting plate, and the tray limiting plate is vertically installed on one side of the aluminum alloy column, and the aluminum alloy column is adjustably installed on a fixed base.

[0014] Furthermore, a first horizontally retractable cylinder is installed at the top of the aluminum alloy columns of the limiting device on both sides of the loading unit, and a push plate is fixed to the telescopic part of the first cylinder, and the top of the push plate extends inward to form a horizontal plug plate.

[0015] Furthermore, the suction cup assembly includes two rows of suction cups and a lifting cylinder. The two rows of suction cups are respectively arranged on both sides of the top of the loading unit and the unloading unit. Each row of suction cups is fixed on a horizontal aluminum alloy rod, and a lifting cylinder is provided at the lower end of the aluminum alloy rod.

[0016] Furthermore, the translation assembly includes a support plate and an electric cylinder, the electric cylinder is installed on one side of the loading unit and the unloading unit, one side of the support plate is fixed on the sliding seat of the electric cylinder, and the other side of the support plate is slidably installed on the translation slide rail.

[0017] Furthermore, a product precision positioning device is provided on one side of the frame, and the product precision positioning device comprises a support seat, a laminating plate is installed on the support seat, and two rows of positioning rollers at a certain angle are installed on the surface of the laminating plate.

[0018] Furthermore, the angles of the two rows of positioning rollers are the same as the angle between two adjacent side surfaces of the processed product, and a pressing plate is provided at the upper end of the laminating plate, and the pressing plate is driven by a second cylinder.

[0019] After adopting the above technical solution, the present invention has the following advantages compared with the prior art:

[0020] 1. The loading unit and the unloading unit are arranged back to back and side by side. The suction cup assembly is used to suck the material tray, and the translation assembly transfers the material tray between the loading unit and the unloading unit. The material tray is translated from the top of the loading unit to the unloading unit. During the processing, the pallet returns to the loading unit to pick up the material tray. The degree of automation is high and the transfer speed is fast, which further improves the work efficiency.

[0021] 2. Before the robot clamps the processed product and puts it into the CNC machine tool, it will place the processed product into the product precision positioning device for precise positioning. The product precision positioning device can be used to precisely position the product and improve the loading accuracy of the machine tool.

[0022] The present invention is described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0024] Figure 2 It is a schematic diagram of the structure of the loading unit, unloading unit, suction cup assembly and translation assembly;

[0025] Figure 3 yes Figure 2 A front view of

[0026] Figure 4 It is a three-dimensional diagram of the loading unit;

[0027] Figure 5 is a three-dimensional diagram of the limit device;

[0028] Figure 6 It is a three-dimensional diagram of the product precision positioning device;

[0029] Figure 7 This is a three-dimensional image of the product precision positioning device from another angle.

[0030] In the figure,

[0031] 1-frame, 101-aluminum alloy frame, 102-upper frame, 2-robot, 3-loading unit, 4-unloading unit, 5-drawer board, 6-drawer slide, 7-drive system, 8-screw, 9-mounting plate, 10-limiting device, 1001-tray limit plate, 1002-aluminum alloy column, 1003-fixed base, 11-first cylinder, 12-push plate, 1201-horizontal plug plate, 13-product precision positioning device, 1301-support seat, 1302-laminating plate, 1303-positioning roller, 1304-pressing plate, 1305-second cylinder, 14-processed products, 15-suction cup assembly, 1501-suction cup, 1502-lifting cylinder, 16-translational assembly, 1601-support plate, 1602-electric cylinder, 1603-translational slide, 17-tray. DETAILED DESCRIPTION

[0032] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, specific embodiments of the present invention are now described with reference to the accompanying drawings.

[0033] like Figure 1-4As shown, the present invention provides an intelligent loading and unloading mechanism for a CNC machine tool, comprising a frame 1, the frame 1 comprising an aluminum alloy frame 101 arranged at the bottom and an upper frame 102 arranged at the top, a robot 2 is installed on the upper side of the aluminum alloy frame 101, and a loading unit 3 and a unloading unit 4 are arranged side by side on the inner side of the aluminum alloy frame 101;

[0034] The loading unit 3 and the unloading unit 4 have the same structure, both of which include a drawer plate 5, and the material tray 17 is stacked on the drawer plate 5. The drawer plate 5 is driven by the drawer lifting mechanism to move up and down;

[0035] A suction cup assembly 15 is respectively provided above the loading unit 3 and the unloading unit 4. Figure 2 , Figure 3 , the suction cup assembly 15 is used to suck the material tray 17;

[0036] A translation assembly 16 is further provided above the loading unit 3 and the unloading unit 4 , and the translation assembly 16 enables the material tray 17 to be transferred between the loading unit 3 and the unloading unit 4 .

[0037] The loading unit 3 and the unloading unit 4 also include a vertically arranged mounting plate 9, and the drawer lifting mechanism includes a vertically arranged screw rod 8, which is rotatably mounted on a side of the mounting plate 9 close to the drawer plate 5, and the screw rod 8 is driven by a driving system 7, and the screw rod 8 is threadedly matched with a transmission nut; the drawer plate 5 is slidably mounted on the drawer frame through a drawer slide rail 6, and the transmission nut is fixedly connected to the drawer frame.

[0038] The loading unit 3 and the unloading unit 4 are arranged side by side back to back, so that the mounting vertical plates 9 of the two are arranged relatively close to each other, and the drawer plates 5 of the two are arranged away from each other. The tray 17 containing the product to be processed is put into the drawer plate 5 of the loading unit 3, and the tray 17 containing the processed product is discharged from the drawer plate 5 of the unloading unit 4.

[0039] Limiting devices 10 are respectively provided on both sides of the loading unit 3 and the unloading unit 4. Figure 5 The limiting device includes a tray limiting plate 1001, which is vertically installed on one side of an aluminum alloy column 1002, and the aluminum alloy column 1002 is adjustably installed on a fixed base 1003.

[0040] The top of the aluminum alloy column 1002 of the limiting device 10 on both sides of the loading unit 3 is installed with a horizontally retractable first cylinder 11, and the telescopic part of the first cylinder 11 is fixed with a push plate 12, and the top of the push plate 12 extends inward to form a horizontal insert plate 1201. Before the suction cup assembly 15 above the loading unit 3 pulls up the material tray, the first cylinder 11 pushes the push plate 12 forward to insert the horizontal insert plate 1201 between the two uppermost material trays to prevent the second material tray from being lifted up when the top material tray is pulled up.

[0041] The suction cup assembly 15 includes two rows of suction cups 1501 and a lifting cylinder 1502. The two rows of suction cups 1501 are respectively arranged on both sides of the top of the loading unit 3 and the unloading unit 4. Each row of suction cups 1501 is fixed on a horizontal aluminum alloy rod, and a lifting cylinder 1502 is provided at the lower end of the aluminum alloy rod.

[0042] The translation assembly 16 includes a support plate 1601 and an electric cylinder 1602. The electric cylinder 1602 is installed on one side of the loading unit 3 and the unloading unit 4. One side of the support plate 1601 is fixed on the sliding seat of the electric cylinder 1602, and the other side of the support plate 1601 is slidably installed on the translation rail 1603.

[0043] The suction cup 1501 of the suction cup assembly 15 at the upper end of the loading unit 3 sucks the material tray 17 and pulls it up. The translation assembly 16 drives the pallet 1601 to move to the bottom of the material tray 17 of the loading unit 3 under the drive of the electric cylinder 1602. The suction cup 1501 releases the material tray 17, and the pallet 1601 transfers the material tray 17 to the unloading unit 4. The suction cup 1501 of the suction cup assembly 15 at the upper end of the unloading unit 4 sucks the material tray 17. At this time, the pallet 1601 returns to the loading unit 3 to pick up the material tray; the robot 2 grabs the products on the material tray 17 to the CNC machine tool, and puts them back on the material tray 17 located at the unloading unit 4 after the processing is completed. After all the processed products on the material tray 17 are processed, the drawer board 5 of the unloading unit 4 moves down, so that the material tray 17 is stacked on the drawer board 5 of the unloading unit 4. The material tray 17 is translated from above the loading unit 3 to the unloading unit 4. During the processing, the support plate 1601 returns to the loading unit 3 to take the material tray 17. The automation level is high and the transfer speed is fast, which further improves the work efficiency.

[0044] A product precision positioning device 13 is provided on one side of the frame 1. Figure 6 , Figure 7 The product precision positioning device 13 includes a support seat 1301, on which a bonding plate 1302 is installed, and on the surface of the bonding plate 1302, two rows of positioning rollers 1303 are installed at a certain angle.

[0045] The angles of the two rows of positioning rollers 1303 are the same as the angles between the two adjacent sides of the processed product 14. A pressing plate 1304 is provided at the upper end of the laminating plate 1302, and the pressing plate 1304 is driven by a second cylinder 1305. Before the robot 2 clamps the processed product 14 and puts it into the CNC machine tool, it puts the processed product 14 into the product precise positioning device 13 for precise positioning. The product precise positioning device 13 can be used to precisely position the product, thereby improving the loading accuracy of the machine tool.

[0046] A gripping mechanism is installed on the top of the robot 2, and a visual system is installed on the upper frame 102 to identify the position of the processed product.

[0047] In one embodiment of the present invention, the processed product 14 is a cover of a tablet computer, and of course it can also be other products of other shapes.

[0048] The specific working principle of the present invention:

[0049] The loading unit 3 and the unloading unit 4 are arranged back to back and side by side. When loading, the drawer plate 5 of the loading unit 3 is pulled out, and a stack of trays 17 containing processed products 14 is placed on the drawer plate 5 of the loading unit 3. Driven by the drawer lifting mechanism, the drawer plate 5 drives the tray 17 to move upward, and the suction cup 1501 of the suction cup assembly 15 at the upper end of the loading unit 3 sucks the tray 17 and pulls it up. The translation assembly 16 drives the support plate 1601 to move to the bottom of the tray 17 of the loading unit 3 under the drive of the electric cylinder 1602. The suction cup 1501 releases the tray 17, and the support plate 1601 transfers the tray 17 to the unloading unit 4. The suction cup 1501 of the suction cup assembly 15 at the upper end of the unloading unit 4 sucks the material tray 17. At this time, the support plate 1601 returns to the loading unit 3 to pick up the material tray; the robot 2 grabs the product on the material tray 17 of the unloading unit 4 and accurately positions it in the product precision positioning device 13, and then puts it into the CNC machine tool. After the processing is completed, it is put back on the material tray 17 located at the unloading unit 4. After all the processed products on the material tray 17 are processed, the suction cup 1501 of the unloading unit releases the material tray 17, and the drawer board 5 of the unloading unit 4 moves down, so that the material tray 17 is stacked on the drawer board 5 of the unloading unit 4, and the loading and unloading are repeated.

[0050] The above is an example of the best implementation of the present invention, and the parts not described in detail are common knowledge of ordinary technicians in the field. The protection scope of the present invention shall be based on the content of the claims, and any equivalent transformation based on the technical enlightenment of the present invention is also within the protection scope of the present invention.

Claims

1. An intelligent loading and unloading mechanism for a CNC machine tool, comprising a frame (1), the frame (1) comprising an aluminum alloy frame (101) arranged at the bottom and an upper frame (102) arranged at the top, characterized in that: A robot (2) is installed on the upper side of the aluminum alloy frame (101), and a loading unit (3) and a unloading unit (4) are arranged side by side on the inner side of the aluminum alloy frame (101); The loading unit (3) and the unloading unit (4) have the same structure, and both include a drawer plate (5). The material tray (17) is stacked on the top of the drawer plate (5). The drawer plate (5) is driven by a drawer lifting mechanism to move up and down. A suction cup assembly (15) is respectively provided above the loading unit (3) and the unloading unit (4), and the suction cup assembly (15) is used to suck the material tray (17); A translation assembly (16) is also provided above the loading unit (3) and the unloading unit (4), and the translation assembly (16) enables the material tray (17) to be transferred between the loading unit (3) and the unloading unit (4); The loading unit (3) and the unloading unit (4) further comprise a vertically arranged mounting plate (9), the drawer lifting mechanism comprises a vertically arranged screw rod (8), the screw rod (8) being rotatably mounted on a side of the mounting plate (9) close to the drawer plate (5), the screw rod (8) being driven by a driving system (7), the screw rod (8) being threadably matched with a transmission nut; the drawer plate (5) is slidably mounted on a drawer frame via a drawer slide rail (6), and the transmission nut is fixedly connected to the drawer frame; The loading unit (3) and the unloading unit (4) are arranged back to back and side by side, so that the mounting upright plates (9) of the two are arranged relatively close to each other, and the drawer plates (5) of the two are arranged away from each other; A limiting device (10) is provided on both sides of the loading unit (3) and the unloading unit (4), respectively, the limiting device comprising a material tray limiting plate (1001), the material tray limiting plate (1001) being vertically mounted on one side of an aluminum alloy column (1002), and the aluminum alloy column (1002) being adjustably mounted on a fixed base (1003); The top ends of the aluminum alloy columns (1002) of the limiting devices (10) on both sides of the loading unit (3) are provided with horizontally telescopic first cylinders (11), the telescopic portion of the first cylinder (11) is fixed with a push plate (12), and the top of the push plate (12) extends inwards to form a horizontal plug plate (1201); The suction cup assembly (15) comprises two rows of suction cups (1501) and a lifting cylinder (1502), wherein the two rows of suction cups (1501) are respectively arranged on both sides of the top of the loading unit (3) and the unloading unit (4), and each row of suction cups (1501) is fixed on a horizontal aluminum alloy rod, and a lifting cylinder (1502) is arranged at the lower end of the aluminum alloy rod; The translation assembly (16) comprises a support plate (1601) and an electric cylinder (1602), wherein the electric cylinder (1602) is installed on one side of the loading unit (3) and the unloading unit (4), one side of the support plate (1601) is fixed on the sliding seat of the electric cylinder (1602), and the other side of the support plate (1601) is slidably installed on the translation rail (1603).

2. The intelligent loading and unloading mechanism for a CNC machine tool according to claim 1, characterized in that: A product precision positioning device (13) is provided on one side of the frame (1), and the product precision positioning device (13) comprises a support seat (1301), a laminating plate (1302) is installed on the support seat (1301), and two rows of positioning rollers (1303) are installed at a certain angle on the surface of the laminating plate (1302).

3. The intelligent loading and unloading mechanism for a CNC machine tool according to claim 2, characterized in that: The angles of the two rows of positioning rollers (1303) are the same as the angle between two adjacent side surfaces of the processed product (14). A pressing plate (1304) is provided at the upper end of the laminating plate (1302), and the pressing plate (1304) is driven by a second cylinder (1305).

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