Wood product three-dimensional curved surface positioning clamp

Abstract

The utility model discloses a wooden product three-dimensional curved surface positioning fixture, which relates to the technical field of positioning fixtures and comprises a platform frame, a push rod is arranged on the inner side of the upper end of the platform frame, and a vacuum chuck is hinged to the output end of the push rod. By the adoption of the structure, the liftable push rods are installed on the bottom face of the clamp in a matrix mode and are modularly designed, the lifting action is driven by the servo motor through the speed reduction transmission mechanism, the lifting positions of the push rods can be accurately controlled and locked, the vacuum suction cups are installed on the tops of the push rods in a hinged mode, and the swing self-adjusting capacity is achieved; meanwhile, a blowing channel is integrated on the vacuum suction cup, dust on the push rods and the suction cup can be cleaned when a workpiece is replaced, the clamp can be controlled by a numerical control system, the position of each push rod can be accurately set, the clamp can adapt to positioning and clamping of any curved surface in the working range and the stroke, and the machining efficiency can be greatly improved by being matched with a gantry machining center.

Description

Technical Field

[0001] The utility model belongs to the technical field of positioning fixtures, and particularly relates to a three-dimensional curved surface positioning fixture for wooden products. Background Art

[0002] Wood products refer to items made of wood as raw materials, including but not limited to furniture, decorations, building components and daily necessities. In the field of furniture, wood products are particularly widely used. Wooden furniture such as tables, chairs, beds, cabinets, etc. are very popular because of their stability and durability. These furniture are not only practical, but also can bring a natural and harmonious atmosphere to the interior space. At the same time, wood products also play an indispensable role in interior decoration. Wooden wall panels, floors, doors and windows, etc. can create rich and diverse decorative effects through different materials, colors and textures. At present, in the furniture industry, there are a large number of parts that need to be processed by three-dimensional surfaces.

[0003] In the process of converting from manual processing to CNC equipment processing, the gantry 5-hedron machining center can solve the processing problem of thin-walled parts with curved surfaces on both sides. However, the workpiece does not have accurate positioning reference and reliable clamping surface, and positioning and clamping on the machine tool is still very difficult. To improve efficiency, the problem of tooling and fixture must be solved. Utility Model Content

[0004] In view of the problems mentioned in the background technology, the purpose of the utility model is to provide a three-dimensional curved surface positioning fixture for wooden products to solve the problems mentioned in the background technology.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions:

[0006] A three-dimensional curved surface positioning fixture for wooden products comprises a platform frame, a push rod is provided on the inner side of the upper end of the platform frame, the output end of the push rod is hingedly connected to a vacuum suction cup, the output end of the vacuum suction cup is provided with a workpiece, a base frame is movably installed on the inner side of the platform frame, the upper end of the base frame is slidably connected to a movable slide, the upper end of the movable slide is slidably connected to a mounting shell, the lower end of the mounting shell is provided with a lifting device, the upper end of the lifting device is provided with a locking motor, and the lower end of the push rod is provided with a joint.

[0007] As a preferred technical solution, a support is symmetrically fixedly installed at the lower end of the platform frame, and a rubber pad is fixedly installed at the lower end of the support. The stability of the platform frame can be improved by the support with the rubber pad.

[0008] As a preferred technical solution, a slide rail is fixedly installed on the upper end of the base frame, and a slide seat is fixedly installed on the lower end of the movable slide. The slide rail and the slide seat are slidably connected, and the movable slide can slide conveniently on the base frame through the slide rail and the slide seat.

[0009] As a preferred technical solution, a first mounting screw is provided on the inner side of the movable slide, and the movable slide is fixedly installed by the first mounting screw and the upper end of the slide seat; a second mounting screw is provided on the outer side of the slide rail, and the slide rail is fixedly installed by the second mounting screw and the upper end of the base frame; the first mounting screw can facilitate the installation of the movable slide and the slide seat, and the second mounting screw can facilitate the installation of the slide rail and the base frame.

[0010] As a preferred technical solution, a frame groove is provided on the inner side of the upper end of the base frame, and the cross-section of the frame groove is an isosceles trapezoidal shape. The frame groove on the base frame can facilitate the movement of the installation shell with the lifting device.

[0011] As a preferred technical solution, plug blocks are symmetrically fixedly installed on the outer side of the base frame, and slots are opened on the outer side of the platform frame. The plug blocks and the slots are plug-in connected, and the base frame and the platform frame can be conveniently plugged in through the plug blocks and the slots.

[0012] As a preferred technical solution, a through hole is provided on the inner side of the platform frame, a third mounting screw is provided on the inner side of the through hole, a screw groove is provided on the outer side of the base frame, and the threaded end of the third mounting screw can be movably passed through the through hole and the screw groove for fixed installation. The third mounting screw can facilitate the installation and connection of the base frame and the platform frame.

[0013] In summary, the utility model mainly has the following beneficial effects:

[0014] First, determine the size of the fixture base according to the maximum size of the workpiece to be processed, and install push rods that can be raised and lowered in a matrix on the bottom surface of the fixture. The push rods adopt a modular design, and the lifting action is driven by a servo motor through a reduction transmission mechanism, which can accurately control and lock the lifting position of the push rod. The vacuum suction cup is installed on the top of the push rod in an articulated manner, and has the ability to swing and self-adjust. At the same time, the vacuum suction cup is integrated with a blowing channel to clean the dust on the push rod and the suction cup when replacing the workpiece. This fixture can accurately set the position of each push rod under the control of the CNC system, and adapt to the positioning and clamping of any curved surface within the working range and stroke. In conjunction with the gantry machining center, it can greatly improve the processing efficiency;

[0015] Second, when installing the base frame and the platform frame, first connect the base frame through the plug block and the slot on the platform frame. After the base frame is inserted into the appropriate position at the lower end of the platform frame, the screw grooves on both sides of the base frame are aligned with the through holes on the platform frame. At this time, insert the third mounting screw into the through hole and connect it to the screw groove for installation, so that the base frame and the platform frame can be easily installed and used. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model;

[0017] Figure 2 The utility model Figure 1 Enlarged view of point A in the middle;

[0018] Figure 3 It is a schematic diagram of the chassis installation structure of the utility model.

[0019] Figure numerals: 1, base frame, 2, locking motor, 3, movable slide, 4, joint, 5, platform frame, 6, push rod, 7, vacuum suction cup, 8, workpiece, 9, lifting device, 10, frame slot, 11, support, 12, rubber pad, 13, mounting shell, 14, slide rail, 15, slide seat, 16, first mounting screw, 17, second mounting screw, 18, slot, 19, plug, 20, third mounting screw, 21, through hole, 22, screw groove. DETAILED DESCRIPTION

[0020] refer to Figures 1 to 3 The three-dimensional curved surface positioning fixture for wooden products described in this embodiment includes a platform frame 5, a push rod 6 is provided on the inner side of the upper end of the platform frame 5, the output end of the push rod 6 is hingedly connected to a vacuum suction cup 7, the output end of the vacuum suction cup 7 is provided with a workpiece 8, a base frame 1 is movably installed on the inner side of the platform frame 5, the upper end of the base frame 1 is slidably connected to a movable slide 3, the upper end of the movable slide 3 is slidably connected to a mounting shell 13, the lower end of the mounting shell 13 is provided with a lifting device 9, the upper end of the lifting device 9 is provided with a locking motor 2, and the lower end of the push rod 6 is provided with a joint 4.

[0021] refer to Figure 1 A support 11 is symmetrically fixedly installed at the lower end of the platform frame 5, and a rubber pad 12 is fixedly installed at the lower end of the support 11. By using the support 11 with the rubber pad 12 at the lower end of the platform frame 5, the stability of the platform frame 5 can be improved.

[0022] refer to Figure 2 A slide rail 14 is fixedly installed on the upper end of the base frame 1, and a slide seat 15 is fixedly installed on the lower end of the movable slide 3. The slide rail 14 and the slide seat 15 are slidably connected. By using the slide seat 15 on the movable slide 3, it is convenient to slide on the slide rail 14 on the base frame 1.

[0023] refer to Figure 2 A first mounting screw 16 is provided on the inner side of the movable slide 3, and the movable slide 3 is fixedly installed by the first mounting screw 16 and the upper end of the slide seat 15. A second mounting screw 17 is provided on the outer side of the slide rail 14, and the slide rail 14 is fixedly installed by the second mounting screw 17 and the upper end of the base frame 1. The movable slide 3 is installed by the first mounting screw 16 and the slide seat 15, which can facilitate the combined installation of the movable slide 3 and the slide seat 15. The slide rail 14 is installed by the second mounting screw 17 and the base frame 1, which can facilitate the combined installation of the slide rail 14 and the base frame 1.

[0024] refer to Figure 1 A frame groove 10 is provided on the inner side of the upper end of the base frame 1, and the cross-section of the frame groove 10 is an isosceles trapezoidal shape. The frame groove 10 opened at the upper end of the base frame 1 can ensure the installation and use effect of the base frame 1 while facilitating the installation shell 13 to slide on the movable slide 3, and the lower end of the installation shell 13 can move in the frame groove 10 of the base frame 1.

[0025] refer to Figure 3 , an insert block 19 is symmetrically fixedly installed on the outer side of the base frame 1, and a slot 18 is opened on the outer side of the platform frame 5. The insert block 19 and the slot 18 are plug-in connected. When installing the base frame 1 and the platform frame 5, the insert block 19 on the base frame 1 is inserted along the slot 18 on one side of the platform frame 5, and the base frame 1 is pushed into the appropriate position at the lower end of the platform frame 5, so that the base frame 1 and the platform frame 5 can be conveniently connected and installed.

[0026] refer to Figure 3 A through hole 21 is provided on the inner side of the platform frame 5, a third mounting screw 20 is provided on the inner side of the through hole 21, a screw groove 22 is provided on the outer side of the base frame 1, and the threaded end of the third mounting screw 20 is movably passed through the through hole 21 and the screw groove 22 for fixed installation. After the base frame 1 is inserted into the appropriate position at the lower end of the platform frame 5, the screw grooves 22 on both sides of the base frame 1 are aligned with the through holes 21 on the platform frame 5. At this time, the third mounting screw 20 is inserted into the through hole 21 and connected to the screw groove 22 for installation.

[0027] Principle and advantages of use: During use, the size of the fixture base is determined according to the maximum size of the workpiece 8 to be processed, and the push rods 6 that can be raised and lowered are installed in a matrix manner on the bottom surface of the fixture. The push rods 6 adopt a modular design, and the lifting action is driven by the servo motor through the reduction transmission mechanism, which can accurately control and lock the lifting position of the push rods 6. The vacuum suction cup 7 is installed on the top of the push rod 6 in an articulated manner, and has the ability to swing and self-adjust. At the same time, the vacuum suction cup 7 is integrated with a blowing channel, which can clean the dust on the push rod 6 and the suction cup when replacing the workpiece 8. This fixture can accurately set the position of each push rod 6 under the control of the CNC system, and adapt to the positioning and clamping of any curved surface within the working range and stroke;

[0028] When installing the base frame 1 and the platform frame 5, first connect the base frame 1 through the plug block 19 and the slot 18 on the platform frame 5. After the base frame 1 is inserted into the appropriate position at the lower end of the platform frame 5, the screw grooves 22 on both sides of the base frame 1 are aligned with the through holes 21 on the platform frame 5. At this time, insert the third mounting screw 20 into the through hole 21 and connect it to the screw groove 22 for installation.

Claims

1. A three-dimensional curved surface positioning fixture for wooden products, comprising a platform frame (5), characterized in that: A push rod (6) is provided on the inner side of the upper end of the platform frame (5), and the output end of the push rod (6) is hingedly connected to a vacuum suction cup (7), and the output end of the vacuum suction cup (7) is provided with a workpiece (8). A base frame (1) is movably installed on the inner side of the platform frame (5), and the upper end of the base frame (1) is slidably connected to a movable slide (3), and the upper end of the movable slide (3) is slidably connected to a mounting shell (13), and a lifting device (9) is provided at the lower end of the mounting shell (13), and a locking motor (2) is provided at the upper end of the lifting device (9), and a joint (4) is provided at the lower end of the push rod (6).

2. A three-dimensional curved surface positioning fixture for wooden products according to claim 1, characterized in that: A support (11) is symmetrically fixedly mounted on the lower end of the platform frame (5), and a rubber pad (12) is fixedly mounted on the lower end of the support (11).

3. The three-dimensional curved surface positioning fixture for wooden products according to claim 1, characterized in that: A slide rail (14) is fixedly mounted on the upper end of the base frame (1), and a slide seat (15) is fixedly mounted on the lower end of the movable slide platform (3); the slide rail (14) and the slide seat (15) are slidably connected.

4. The three-dimensional curved surface positioning fixture for wooden products according to claim 3, characterized in that: A first mounting screw (16) is provided on the inner side of the movable slide (3), and the movable slide (3) is fixedly mounted by the first mounting screw (16) and the upper end of the slide seat (15); a second mounting screw (17) is provided on the outer side of the slide rail (14), and the slide rail (14) is fixedly mounted by the second mounting screw (17) and the upper end of the base frame (1).

5. The three-dimensional curved surface positioning fixture for wooden products according to claim 1, characterized in that: A frame groove (10) is provided on the inner side of the upper end of the base frame (1), and the cross section of the frame groove (10) is in the shape of an isosceles trapezoid.

6. The three-dimensional curved surface positioning fixture for wooden products according to claim 1, characterized in that: An insert block (19) is symmetrically fixedly mounted on the outer side of the base frame (1), a slot (18) is provided on the outer side of the platform frame (5), and the insert block (19) and the slot (18) are plug-in connected.

7. The three-dimensional curved surface positioning fixture for wooden products according to claim 1, characterized in that: A through hole (21) is provided on the inner side of the platform frame (5), a third mounting screw (20) is provided on the inner side of the through hole (21), a screw groove (22) is provided on the outer side of the base frame (1), and the threaded end of the third mounting screw (20) is movably inserted through the through hole (21) and the screw groove (22) for fixed installation.

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