Universal clamp for flexible intelligent machining production line

Abstract

The utility model belongs to the technical field of machined part clamps, and particularly relates to a universal clamp for a flexible intelligent machining production line, which comprises a chuck base disc and a workpiece tray. A plurality of blind rivets are arranged at the bottom of the workpiece tray, a plurality of pneumatic chucks are arranged on the chuck base disc, the pneumatic chucks correspond to the blind rivets in a one-to-one mode, and the pneumatic chucks are used for adsorbing and positioning the blind rivets. A workpiece to be machined is locked on the workpiece tray, the chuck base disc is locked on a working table of a CNC machine, the workpiece tray is forked by the machine arm and placed in the CNC machine table, the PLC system controls the pneumatic chuck to adsorb and lock the blind rivet, and installation is completed. A safety door of the CNC machine table is driven to be closed, and operations such as centering and meter setting, tool changing and machining are automatically carried out in the machine table; man-machine separation is achieved in the whole process, and the safety coefficient is effectively improved And meanwhile, the workpiece can be mounted outside the CNC machine table, and the steps of manual centering and benchmark setting and manual carrying and sequence turning are reduced through precise matching of the blind rivets and the trays, so that the activation rate of the machine table is increased.

Description

Technical Field

[0001] The utility model belongs to the technical field of processing part fixtures, and particularly relates to a universal fixture for a flexible intelligent processing production line. Background Technique

[0002] As an automated precision machining technology, CNC machining technology has developed rapidly in recent years. Traditional machining methods rely on manual operation, and the control of precision is limited by the skills of the operator. CNC machining, on the other hand, controls the movement of the machine tool through a digital program to achieve high-precision and high-efficiency machining. This technology is widely used in various fields, such as manufacturing, mold manufacturing, aerospace, etc., and is particularly prominent in the applications of printed circuit boards, automotive parts, medical devices, etc.

[0003] In traditional CNC machining, when changing the processed part, the staff needs to pause the machine tool and perform operations such as workpiece clamping and taking the reference point by aligning the table inside the machine tool. Usually, this will occupy the machine tool and prevent normal machining, reducing the utilization rate of the CNC machine tool and affecting the machining speed. Content of the Utility Model

[0004] The purpose of the utility model is to provide a universal fixture for a flexible intelligent processing production line, aiming to solve the technical problem that when changing the processed part in the prior art, the staff needs to pause the machine tool and perform operations such as workpiece clamping and taking the reference point by aligning the table inside the machine tool, which will occupy the machine tool and prevent normal machining.

[0005] To achieve the above purpose, a universal fixture for a flexible intelligent processing production line provided by an embodiment of the utility model includes a chuck base plate and a workpiece tray. A plurality of pull studs are provided at the bottom of the workpiece tray, and a plurality of pneumatic chucks are provided on the chuck base plate. Each pneumatic chuck corresponds to each pull stud, and the pneumatic chuck is used for adsorbing and positioning the pull stud.

[0006] Further, adsorption holes are also provided on the pneumatic chuck, mounting holes for installing the pneumatic chuck are provided on the chuck base plate, and a negative pressure mechanism is further included. The negative pressure mechanism is communicated with the pneumatic chuck, and the adsorption holes are used for adsorbing the pull stud.

[0007] Further, a plurality of alignment pins are provided above the chuck base plate, and a plurality of alignment holes corresponding to the alignment pins are provided at the bottom of the workpiece tray.

[0008] Further, a plurality of pressing blocks and screws are also provided on the workpiece tray. The screws pass through the pressing blocks and are connected to the workpiece tray, and each pressing block is used for fixing the processed part on the workpiece tray.

[0009] Further, a plurality of connecting grooves are provided on the workpiece tray. The connecting grooves are arranged vertically and horizontally on the upper surface of the workpiece tray, and each connecting groove forms a grid shape and the spacing between the connecting grooves in the same direction is equal.

[0010] Furthermore, the middle part of the connecting groove extends towards both sides to be provided with clamping grooves, and the groove diameter of the clamping grooves is larger than that of the connecting groove.

[0011] Furthermore, a plurality of locking blocks are further provided at the bottom of the chuck base plate, and the locking blocks are used to connect the chuck base plate and the CNC workbench surface.

[0012] One or more of the above technical solutions in a universal fixture for a flexible intelligent processing production line provided by an embodiment of the present invention at least have the following technical effects: locking the workpiece on the workpiece tray, locking the chuck base plate on the workbench of the CNC machine, the robotic arm forks up the workpiece tray and places it into the CNC machine tool, and the PLC system controls the pneumatic chuck to adsorb and lock the pull stud, and the installation is completed. Driving the safety door of the CNC machine tool to close, and operations such as centering and alignment, tool changing, and machining are automatically performed inside the machine tool; the whole process realizes the separation of humans and machines, effectively improving the safety factor. At the same time, the installation of the workpiece can be carried out outside the CNC machine tool. Through the precise cooperation between the pull stud and the tray, the steps of manual centering and setting the reference and manual handling and transfer are reduced, thereby improving the utilization rate of the machine tool. Description of the Drawings

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required to be used in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0014] Figure 1 It is an exploded view of a universal fixture for a flexible intelligent processing production line provided by an embodiment of the present invention.

[0015] Figure 2 It is a structural schematic diagram of a universal fixture for a flexible intelligent processing production line provided by an embodiment of the present invention.

[0016] Figure 3 It is a bottom view of the workpiece tray of a universal fixture for a flexible intelligent processing production line provided by an embodiment of the present invention.

[0017] Reference numerals: 10, chuck base plate; 11, pneumatic chuck; 12, adsorption hole; 13, installation hole; 14, alignment pin; 15, locking block; 20, workpiece tray; 21, pull stud; 22, alignment hole; 23, pressing block; 24, screw; 25, connecting groove; 26, clamping groove. Detailed Embodiments

[0018] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the embodiments of the present utility model, and should not be construed as limiting the present utility model.

[0019] In the description of the embodiments of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of 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, and therefore should not be construed as limiting the present utility model.

[0020] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present utility model, "a plurality" means two or more, unless otherwise specifically defined.

[0021] In the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "mounted", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0022] In one embodiment of the present utility model, reference is made to Figures 1 to 3As shown in the figure, a universal fixture for a flexible intelligent processing production line is provided, including a chuck base plate 10 and a workpiece tray 20. A plurality of pull studs 21 are provided at the bottom of the workpiece tray 20, and a plurality of pneumatic chucks 11 are provided on the chuck base plate 10. Each pneumatic chuck 11 corresponds to each pull stud 21 one by one, and the pneumatic chuck 11 is used to adsorb and position the pull stud 21. In this embodiment, the workpiece to be processed is locked on the workpiece tray 20, the chuck base plate 10 is locked on the workbench of the CNC machine, the robotic arm forks up the workpiece tray 20 and places it into the CNC machine tool, and the PLC system controls the pneumatic chuck 11 to adsorb and lock the pull stud 21, and the installation is completed. The safety door of the CNC machine tool is driven to close, and operations such as centering, tool changing, and machining are automatically performed inside the machine tool; the whole process realizes the separation of humans and machines, effectively improving the safety factor. At the same time, the installation of the workpiece can be carried out outside the CNC machine tool. Through the precise cooperation of the pull stud 21 and the tray, the steps of manual centering and benchmark setting and manual handling and transfer are reduced, thereby improving the operating rate of the machine tool.

[0023] More specifically, referring to Figures 1 to 3 As shown in the figure, 4 pull studs 21 and 4 pneumatic chucks 11 are respectively provided. Each pull stud 21 and each pneumatic chuck 11 are respectively arranged in a rectangular array on the workpiece tray 20 and the chuck base plate 10, so that the workpiece tray 20 can be fixed on the chuck base plate 10 more stably.

[0024] Specifically, referring to Figures 1 to 3 As shown in the figure, an adsorption hole 12 is further provided on the pneumatic chuck 11, an installation hole 13 for installing the pneumatic chuck 11 is provided on the chuck base plate 10, and a negative pressure mechanism is further included. The negative pressure mechanism is communicated with the pneumatic chuck 11, and the adsorption hole 12 is used to adsorb the pull stud 21. In this embodiment, the negative pressure mechanism makes the adsorption hole 12 in a negative pressure state, and the adsorption hole 12 tightly adsorbs the pull stud 21, which is used to position the workpiece tray 20, making the connection between the chuck base plate 10 and the workpiece tray 20 more convenient and a detachable connection. After the workpiece to be processed is installed at a fixed position on the workpiece tray 20 outside the CNC machine tool, it is then placed into the CNC machine tool, reducing the operation time of the operator on the CNC machine tool and effectively improving the operating rate of the CNC machine tool.

[0025] Specifically, referring to Figures 1 to 3 As shown in the figure, a plurality of alignment pins 14 are further provided above the chuck base plate 10, and a plurality of alignment holes 22 corresponding to the alignment pins 14 are provided at the bottom of the workpiece tray 20. In this embodiment, in this embodiment, the alignment pins 14 and the alignment holes 22 cooperate with each other, making the position of the workpiece tray 20 fixed on the chuck base plate 10 more stable and improving the machining accuracy.

[0026] More specifically, referring to Figures 1 to 3 As shown in the figure, 2 alignment pins 14 and 2 corresponding alignment holes 22 are provided, and the alignment pins 14 are located between the pneumatic chucks 11.

[0027] Specifically, refer to Figures 1 to 3 As shown, several pressing blocks 23 and screws 24 are further provided on the workpiece tray 20. The screws 24 pass through the pressing blocks 23 and are connected to the workpiece tray 20. Each pressing block 23 is used to fix the workpiece on the workpiece tray 20. In this embodiment, the workpiece on the workpiece tray 20 is fixed by the pressing blocks 23, and the workpiece is locked to the workpiece tray 20. Generally, the diagonal locking of the screws 24 is selected.

[0028] Specifically, refer to Figures 1 to 3 As shown, several connecting grooves 25 are further provided on the workpiece tray 20. The connecting grooves 25 are arranged vertically and horizontally in a staggered manner on the upper surface of the workpiece tray 20. The connecting grooves 25 form a grid shape and the spacing between the same-direction connecting grooves 25 is equal. In this embodiment, the workpiece is clamped by the vertically and horizontally staggered connecting grooves 25, which is applicable to workpieces processed by various specifications of screws 24, and can be compatible with various irregularly arranged screw through holes, making the ordinary CNC workbench compatible with more diversified workpieces.

[0029] Specifically, refer to Figures 1 to 3 As shown, clamping grooves 26 extend from the middle of the connecting groove 25 to both sides. The groove diameter of the clamping groove 26 is larger than that of the connecting groove 25. In this embodiment, the clamping groove 26 makes the screw connection more stable and prevents the pressing block 23 from falling off the workpiece tray 20.

[0030] Specifically, refer to Figures 1 to 3 As shown, several locking blocks 15 are further provided at the bottom of the chuck base plate 10. The locking blocks 15 are used to connect the chuck base plate 10 and the CNC workbench. In this embodiment, the locking blocks 15 are used to connect the chuck base plate 10 and the CNC workbench. More specifically, multiple chuck base plates 10 can be connected to the CNC workbench. Workpieces are installed on the workpiece trays 20 at multiple offline workstations respectively, and multiple workpiece trays 20 are placed into the CNC machine at one time for processing, effectively reducing the pause time of the machine.

[0031] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A universal fixture for a flexible intelligent processing production line, characterized in that: It includes a chuck base plate and a workpiece pallet; several pull studs are provided at the bottom of the workpiece pallet, several pneumatic chucks are provided on the chuck base plate, each pneumatic chuck corresponds to each pull stud, and the pneumatic chuck is used for adsorbing and positioning the pull stud.

2. The universal fixture for a flexible intelligent processing production line according to claim 1, characterized in that: An adsorption hole is further provided on the pneumatic chuck, a mounting hole for mounting the pneumatic chuck is provided on the chuck base plate, and a negative pressure mechanism is further included. The negative pressure mechanism is communicated with the pneumatic chuck, and the adsorption hole is used for adsorbing the pull stud.

3. The universal fixture for a flexible intelligent machining production line according to claim 1, characterized in that: Several alignment pins are further provided above the chuck base plate, and several alignment holes corresponding to the alignment pins are provided at the bottom of the workpiece pallet.

4. The universal fixture for a flexible intelligent processing production line according to claim 1, characterized in that: Several pressing blocks and screws are further provided on the workpiece pallet; the screws pass through the pressing blocks and are connected to the workpiece pallet, and each pressing block is used for fixing the workpiece on the workpiece pallet.

5. The universal fixture for a flexible intelligent processing production line according to claim 4, characterized in that: Several connecting grooves are further provided on the workpiece pallet, and the connecting grooves are arranged vertically and horizontally on the upper surface of the workpiece pallet. Each connecting groove forms a grid shape and the spacing of the connecting grooves in the same direction is equal.

6. The universal fixture for a flexible intelligent machining production line according to claim 5, characterized in that: A clamping groove extends from the middle of the connecting groove to both sides, and the groove diameter of the clamping groove is larger than that of the connecting groove.

7. A universal fixture for a flexible intelligent machining production line according to any one of claims 1 to 6, characterized in that: Several locking blocks are further provided at the bottom of the chuck base plate, and the locking blocks are used for connecting the chuck base plate and the CNC workbench surface.

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