Automatic feeding and discharging platform for engraving and milling machine

Abstract

The utility model belongs to the technical field of automatic feeding and discharging equipment, and particularly relates to an automatic feeding and discharging platform for an engraving and milling machine, which is characterized in that the automatic feeding and discharging platform comprises a downward three-axis moving arm, a placement table and the engraving and milling machine, a switching slide rail is mounted at the front end of the three-axis moving arm, a downward workpiece clamping jaw and a grabbing suction cup are slidably sleeved below the switching slide rail, and the workpiece clamping jaw and the grabbing suction cup are mounted on the placement table. The storage table is arranged below the workpiece clamping jaw and the grabbing suction cup, and an opening of the engraving and milling machine is formed in one side of the storage table. The feeding and discharging device is provided with the switchable mechanical arm supporting grabbing of the tray or grabbing of the workpiece, the automatic working procedure that the workpiece is taken out of the tray to be machined and then placed back into the tray is achieved, the working procedure can be maintained to be automatically operated for a long time, and production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic loading and unloading equipment, and more specifically, to an automatic loading and unloading platform for a precision engraving machine. Background Art

[0002] A precision engraving machine (CNC engraving and milling machine) is a type of numerically controlled machine tool. A metal precision engraving machine can perform non-contact cutting and punching on metal or non-metal plates and pipes, and is especially suitable for laser cutting and processing of materials such as stainless steel plates, iron plates, silicon wafers, ceramic chips, titanium alloys, epoxy, A3 steel, and diamond. This equipment operates stably and reliably, has good processing quality, high efficiency, and is simple to operate and convenient to maintain.

[0003] In order to meet the trend of automation upgrading in the production workshop, various devices that can replace manual operation for automatic loading and unloading of precision engraving machines have emerged on the market.

[0004] For example, in the patent document with the patent number CN202311081806.3 and the title "Pin-positioning Automatic Loading Precision Engraving Machine", it discloses a bed body, a moving workbench, a processing spindle, and a material picking and placing manipulator. It also includes a storage and feeding device, which includes a storage seat. A positioning pin rod is provided on the storage seat, a lifting mechanism is provided on the storage seat, and a supporting plate is also provided on the storage seat. The supporting plate can gradually rise along with the lifting rod so that the sheet materials on the supporting plate are gradually separated from the top of the positioning pin rod one by one; a positioning pin is provided on the moving workbench, a lifting frame is arranged on the periphery of the moving workbench, and a sheet material removing piece is arranged on the lifting frame. Its storage and feeding device with a special structural design is combined with the moving workbench structure and the manipulator with special structures, which can perform pin positioning on the sheet materials with positioning holes, and at the same time, can also smoothly separate the sheet materials from the positioning pin rod or the positioning pin. The whole process is automatically operated by the manipulator.

[0005] However, during the processing of relatively delicate components, it is necessary to store the components in the storage space between the stacked plastic trays to avoid contact between the components and the outside world. Specifically, during precision engraving, workers need to take the components out of the plastic trays and then put them back into the plastic trays after engraving is completed. The operation steps are relatively complex, and there is still a lack of automated equipment on the market that can replace this operation. Summary of the Utility Model

[0006] In order to solve the problem that there is a lack of automated equipment on the market that can take components out of the plastic box, load them onto the precision engraving machine for processing, and then put the components back into the plastic box after completion, and workers still need to be responsible for loading and unloading, resulting in low processing efficiency and high operating costs, an automatic loading and unloading platform for a precision engraving machine is provided.

[0007] An automated loading and unloading platform for a precision engraving machine, including a downward three-axis moving arm, a placing table, and a precision engraving machine. A switching slide rail is installed at the front end of the three-axis moving arm. A downward workpiece gripper and a grasping suction cup are slidably sleeved below the switching slide rail. The placing table is arranged below the workpiece gripper and the grasping suction cup. The opening of the precision engraving machine is arranged on one side of the placing table.

[0008] Further, a loading placing area and an unloading placing area are arranged side by side in front of the opening of the precision engraving machine on the placing table.

[0009] Further, both the loading placing area and the unloading placing area include vertical stacking grooves, and a plurality of workpiece trays are vertically stacked and placed in the vertical stacking grooves.

[0010] Further, a lifting push rod is installed below the vertical stacking groove, and a tray sensor is arranged at the top of the vertical stacking groove. The tray sensor is electrically connected to the lifting push rod and the three-axis moving arm.

[0011] Further, the front end of the workpiece gripper is connected to a rotating bracket through a horizontal rotating shaft, and gripper modules are installed below and on the side of the rotating bracket.

[0012] Further, a secondary positioning tooling is arranged below the three-axis moving arm on the placing table. The secondary positioning tooling includes a workpiece clamping seat, and the side of the workpiece clamping seat is open and provided with a telescopic clamping piece.

[0013] Further, a workpiece cleaning liquid tank with an open top is arranged below the three-axis moving arm on the placing table.

[0014] Further, the three-axis moving arm includes a horizontal servo slide, a lifting servo slide, and a longitudinal servo slide. The lifting servo slide is installed on the slider of the horizontal servo slide, the longitudinal servo slide is installed at the bottom of the lifting servo slide, and the switching slide rail is installed below the longitudinal servo slide.

[0015] Further, the opening of the precision engraving machine is correspondingly arranged at the front end of the longitudinal servo slide. A touch screen is arranged on the side of the precision engraving machine. The three-axis moving arm, the workpiece gripper, and the grasping suction cup are electrically connected to the touch screen.

[0016] Further, the three-axis moving arm is connected to the placing table through a support frame above the placing table, and a plurality of brake universal wheels are arranged at the bottom of the placing table.

[0017] The advantages of the present utility model are as follows:

[0018] 1. It can replace manual labor to put the workpieces to be precision engraved from the stacked trays into the precision engraving machine for processing and then put them back, effectively improving the working efficiency of the precision engraving process.

[0019] 2. The workpiece clamping mechanism is equipped with two rotatable clamping modules. When taking out the processed workpiece, the next unprocessed workpiece can be immediately placed in the precision engraving machine, reducing the space time of the precision engraving machine and improving work efficiency.

[0020] 3. The equipment is compact and occupies a small space, making it easy to adapt to the existing engraving machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 This is a structural diagram of the front side of the automatic loading and unloading platform for precision engraving machines;

[0023] Figure 2 This is a structural diagram of the side of the automatic loading and unloading platform for precision engraving machines;

[0024] Figure 3 It is a schematic diagram of the structure of the lower side of the three-axis mobile arm;

[0025] Figure 4 It is a schematic diagram of the structure of the upper side of the three-axis moving arm;

[0026] Figure 5 It is a schematic diagram of the structure of vertically stacked troughs;

[0027] Figure 6 It is a structural schematic diagram of the secondary positioning tooling;

[0028] Figure ID:

[0029] 1. Three-axis moving arm; 101. lateral servo slide; 102. lifting servo slide; 103. longitudinal servo slide; 2. storage table; 201. loading storage area; 202. unloading storage area; 3. precision engraving machine; 4. switching slide rail; 5. workpiece clamp; 501. horizontal rotation axis; 502. rotating bracket; 503. clamp module; 6. grab suction cup; 7. vertical stacking slot; 701. lifting push rod; 702. pallet sensor; 8. workpiece pallet; 9. secondary positioning tooling; 901. workpiece holder; 902. telescopic clamp; 10. workpiece cleaning liquid tank; 11. touch screen; 12. support frame; 13. brake universal wheel. DETAILED DESCRIPTION

[0030] In order to solve the problem that there is a lack of automated equipment on the market that can take out parts from a blister box, load them onto a precision engraving machine for processing, and then put the parts back into the blister box after completion. Workers are still required to be responsible for loading and unloading, resulting in low processing efficiency and high operating costs. An automated loading and unloading platform for a precision engraving machine is provided.

[0031] In order to make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0032] It should be noted that the terms such as "inner", "middle", and "one" cited in this specification are only for the convenience of clear description and do not limit the scope of implementation of the present utility model. The change or adjustment of their relative relationships shall be regarded as the scope of implementation of the present utility model without substantial change in technical content, and is hereby stated first.

[0033] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific situations.

[0034] Such as Figures 1 to 6As shown in the figure, the present embodiment provides an automated loading and unloading platform for a precision engraving machine, including a downward three-axis moving arm 1, a placement table 2, and a precision engraving machine 3. A switching slide rail 4 is installed at the front end of the three-axis moving arm 1. A downward workpiece gripper 5 and a gripping suction cup 6 are slidably sleeved below the switching slide rail 4. The placement table 2 is arranged below the workpiece gripper 5 and the gripping suction cup 6. The opening of the precision engraving machine 3 is arranged on one side of the placement table 2.

[0035] Since the workpiece gripper 5 and the gripping suction cup 6 at the front end of the three-axis moving arm 1 can be slidably switched, it is possible to realize the switching of gripping the workpiece with the workpiece gripper 5 or sucking the tray with the gripping suction cup 6 on one robotic arm, so that the device can automatically lift the workpiece tray 8 and then take out the workpiece inside.

[0036] A loading placement area 201 and an unloading placement area 202 are arranged side by side in front of the opening of the precision engraving machine 3 on the placement table 2.

[0037] The adjacent loading placement area 201 and unloading placement area 202 facilitate the device to sequentially transport and place the trays and workpieces in the loading placement area 201 to the unloading placement area 202, which can shorten the transportation stroke.

[0038] Both the loading placement area 201 and the unloading placement area 202 include vertical stacking grooves 7, and a plurality of workpiece trays 8 are vertically stacked in the vertical stacking grooves 7.

[0039] The vertical stacking grooves 7 can ensure that the workpiece trays 8 are stacked and placed stably in sequence, avoiding the dumping of multiple stacked workpiece trays 8.

[0040] A lifting push rod 701 is installed below the vertical stacking groove 7, and a tray sensor 702 is arranged at the top of the vertical stacking groove 7. The tray sensor 702 is electrically connected to the lifting push rod 701 and the three-axis moving arm 1.

[0041] Since the workpiece trays 8 are vertically stacked, the lifting push rod 701 that is linked to lift by the tray sensor 702 can enable the gripping suction cup 6 to always operate at the same height when picking up and placing the workpiece trays 8, simplifying the working stroke of the device. Specifically, after the tray sensor 702 in the loading placement area 201 detects that the top workpiece tray 8 is taken away, it automatically rises by a stroke equal to the thickness of one workpiece tray 8, and after the tray sensor 702 in the unloading placement area 202 detects that a workpiece tray 8 is placed on the top, it automatically descends. In addition, the tray sensor 702 can adopt a commonly used proximity sensor on the market.

[0042] The front end of the workpiece gripper 5 is connected to a rotating bracket 502 through a horizontal rotating shaft 501, and gripper modules 503 are installed below and on the side of the rotating bracket 502.

[0043] In this embodiment, the rotating bracket 502 is driven to rotate by a telescopic push rod. Since two jaw modules 503 capable of gripping workpieces are provided on the workpiece jaw 5, when the three-axis moving arm 1 grips an unprocessed blank workpiece and reaches the front of the engraving machine 3, the empty jaw module 503 can be rotated and switched to take out the processed workpiece, and then rotated and switched to the jaw module 503 that grips the blank workpiece to put in a new blank workpiece to continue the engraving process. Compared with the equipment that can only grip one workpiece at a time, the waiting time of the engraving machine 3 can be effectively reduced and the work efficiency can be improved.

[0044] A secondary positioning tooling 9 is provided on the placement table 2 corresponding to the lower part of the three-axis moving arm 1. The secondary positioning tooling 9 includes a workpiece clamping seat 901, and the side of the workpiece clamping seat 901 is open and provided with a telescopic clamping piece 902.

[0045] Since the workpiece is not strictly positioned in the workpiece tray 8, and due to reasons such as the stroke error of the three-axis moving arm 1, it is inevitable that when the workpiece jaw 5 grips the blank workpiece, the orientation of the workpiece is likely to deviate, which is likely to cause the processing position of the workpiece by the engraving machine 3 to shift. Therefore, a secondary positioning tooling 9 is designed before the blank workpiece is put into the engraving machine 3, and the orientation of the blank workpiece is adjusted before it is put into the engraving machine 3. In this embodiment, telescopic clamping pieces 902 are provided on both the front and side of the workpiece clamping seat 901 to adapt to square workpieces.

[0046] A workpiece cleaning liquid tank 10 with an open top is provided on the placement table 2 corresponding to the lower part of the three-axis moving arm 1.

[0047] The engraved workpiece can be put into the workpiece cleaning liquid tank 10 for cleaning to remove foreign matters such as chips and dust adhering to the surface of the workpiece generated during the engraving process. In this embodiment, the cleaning liquid uses alcohol that dries easily and leaves no residue, and a ventilation system can be equipped.

[0048] The three-axis moving arm 1 includes a transverse servo slide 101, a lifting servo slide 102, and a longitudinal servo slide 103. The lifting servo slide 102 is installed on the slider of the transverse servo slide 101, the longitudinal servo slide 103 is installed at the bottom of the lifting servo slide 102, and the switching slide rail 4 is installed below the longitudinal servo slide 103.

[0049] The three servo slides connected in sequence can adopt models with relatively accurate movement positioning on the market, such as screw slides or rack slides, to ensure that the workpiece can be accurately picked up and placed in the engraving machine 3.

[0050] The opening of the precision engraving machine 3 is correspondingly arranged at the front end of the longitudinal servo slide 103. A touch screen 11 is arranged on the side of the precision engraving machine 3. The three-axis moving arm 1, the workpiece gripper 5, and the grasping suction cup 6 are electrically connected to the touch screen 11. The cooperation of the precision engraving machine 3 facing the front end of the longitudinal servo slide 103 and the touch screen 11 facilitates the worker to confirm and adjust the operating state of the equipment, helps to detect equipment failures in a timely manner and make adjustments.

[0051] Above the placement table 2, the three-axis moving arm 1 is connected through a support frame 12. A plurality of brake universal wheels 13 are arranged at the bottom of the placement table 2. Each component of the loading and unloading platform is installed integrally and its position can be moved through the brake universal wheels 13, which is convenient to use and helps to adapt to various existing precision engraving machines 3.

[0052] During actual use, the operation steps of this embodiment are as follows:

[0053] I. Manually stack the workpiece trays 8 filled with blank workpieces in the loading placement area 201 first, and place an empty workpiece tray 8 in the unloading placement area 202. After the tray sensor 702 senses that the workpiece tray 8 is in place, it provides a signal to the three-axis moving arm 1;

[0054] II. The three-axis moving arm 1 moves to the loading placement area 201 and uses one of the gripper modules 503 of the workpiece gripper 5 to grasp the blank workpiece;

[0055] III. The workpiece gripper 5 moves to the secondary positioning tooling 9 and places the blank workpiece into the secondary positioning tooling 9. The secondary positioning tooling 9 clamps the blank workpiece to achieve precise positioning;

[0056] IV. The workpiece gripper 5 moves to the opening of the precision engraving machine 3. First, start the rotating bracket 502 to switch to the other empty gripper module 503 to take out the processed workpiece, and then place the blank workpiece into the precision engraving machine 3;

[0057] V. The workpiece gripper 5 moves above the workpiece cleaning liquid tank 10, immerses the processed workpiece for cleaning, and puts the cleaned workpiece into the workpiece tray 8 in the unloading placement area 202;

[0058] VI. After the workpiece tray 8 in the unloading placement area 202 is filled with workpieces, the three-axis moving arm 1 switches to the state of the grasping suction cup 6 and transports the empty workpiece tray 8 on the top of the loading placement area 201 to cover the workpiece tray 8 in the unloading placement area 202 for stacking.

[0059] VII. Repeat the above steps until the workpiece trays 8 in the unloading placement area 202 are stacked full and then taken out manually.

[0060] The above content is a further detailed description of the present utility model in combination with specific preferred embodiments. It cannot be determined that the specific implementation of the present utility model is only limited to these descriptions. That is, all equivalent changes and modifications made according to the scope of this application should still fall within the scope covered by the present utility model.

Claims

1. The automatic loading and unloading platform for a precision engraving machine is characterized in that It includes a downward-facing three-axis moving arm, a placing table, and a precision engraving machine. A switching slide rail is installed at the front end of the three-axis moving arm. A downward workpiece gripper and a grasping suction cup are slidably sleeved under the switching slide rail. The placing table is arranged under the workpiece gripper and the grasping suction cup. The opening of the precision engraving machine is arranged on one side of the placing table.

2. The automatic loading and unloading platform for a precision engraving machine according to claim 1, characterized in that, On the placing table, a loading placing area and an unloading placing area are arranged side by side in front of the opening of the precision engraving machine.

3. The automated loading and unloading platform for a precision engraving machine according to claim 2, wherein, Both the loading placing area and the unloading placing area include vertical stacking grooves, and a plurality of workpiece trays are vertically stacked and placed in the vertical stacking grooves.

4. The automatic loading and unloading platform for a precision engraving machine according to claim 3, wherein, A lifting push rod is installed under the vertical stacking groove, and a tray sensor is arranged at the top of the vertical stacking groove. The tray sensor is electrically connected to the lifting push rod and the three-axis moving arm.

5. The automated loading and unloading platform for a precision engraving machine according to claim 1, characterized in that, The front end of the workpiece gripper is connected to a rotating bracket through a horizontal rotating shaft, and gripper modules are installed under and on the side of the rotating bracket.

6. The automatic loading and unloading platform for a precision engraving machine according to claim 1, wherein, On the placing table, a secondary positioning tooling is arranged under the three-axis moving arm. The secondary positioning tooling includes a workpiece clamping seat, and the side of the workpiece clamping seat is open and provided with telescopic clamping pieces.

7. The automated loading and unloading platform for a precision engraving machine according to claim 1, wherein, On the placing table, a workpiece cleaning liquid tank with an open top is arranged under the three-axis moving arm.

8. The automated loading and unloading platform for a precision engraving machine according to claim 1, wherein The three-axis moving arm includes a horizontal servo slide table, a lifting servo slide table, and a longitudinal servo slide table. The lifting servo slide table is installed on the slider of the horizontal servo slide table. The longitudinal servo slide table is installed at the bottom of the lifting servo slide table. The switching slide rail is installed under the longitudinal servo slide table.

9. The automated loading and unloading platform for a precision engraving machine according to claim 8, characterized in that The opening of the precision engraving machine is correspondingly arranged at the front end of the longitudinal servo slide table. A touch screen is arranged on the side of the precision engraving machine. The three-axis moving arm, the workpiece gripper, and the grasping suction cup are electrically connected to the touch screen.

10. The automated loading and unloading platform for a precision engraving machine according to claim 1, characterized in that, The upper part of the placing table is connected to the three-axis moving arm through a support frame, and a plurality of brake universal wheels are arranged at the bottom of the placing table.

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