Grabbing and overturning mechanism

Abstract

The utility model provides a grabbing and overturning mechanism, and relates to the technical field of tool jigs. Comprising a connecting rod opening and closing mechanism and a turnover mechanism, the connecting rod opening and closing mechanism comprises a mounting guide rail plate, a first opening and closing moving part, a second opening and closing moving part and an opening and closing air cylinder, wherein the first opening and closing moving part and the second opening and closing moving part are suitable for linearly moving below the mounting guide rail plate, and the opening and closing air cylinder is arranged on the mounting guide rail plate; a first connecting rod and a second connecting rod are hinged to the first opening and closing moving part and the second opening and closing moving part respectively, and the other end of the first connecting rod is hinged to the other end of the second connecting rod; an extension rod of the opening and closing air cylinder is connected to the hinged point of the first connecting rod and the second connecting rod, and the turnover mechanism is arranged on the connecting rod opening and closing mechanism to drive a workpiece to turn over. By means of the scheme, the workpiece can be turned over more stably, and the clamping device is suitable for clamping large workpieces.

Description

Technical Field

[0001] The utility model relates to the technical field of tooling fixtures, and in particular to a grabbing and flipping mechanism. Background Art

[0002] The product is carried on the jig, which is compatible with both sides of the product. During the product flow, the product needs to be flipped 180° and then placed back in the jig. The existing flipping mechanism cannot adapt to the realization of the product flipping 180° function. Although the existing mechanism adopts a single-side clamping and flipping structure, it has the problems of unstable grasping, poor flipping accuracy and inability to adapt to the clamping of large products. Utility Model Content

[0003] In view of this, the purpose of the utility model is to provide a gripping and flipping mechanism to solve the problems that the existing flipping mechanism cannot achieve flipping during the clamping process and the gripping is unstable and cannot adapt to the clamping of large products.

[0004] The utility model adopts the following scheme: The application provides a grabbing and flipping mechanism, including: a connecting rod opening and closing mechanism and a flipping mechanism, wherein:

[0005] The connecting rod opening and closing mechanism comprises a mounting guide plate, a first opening and closing movable member and a second opening and closing movable member suitable for linear movement below the mounting guide plate, and an opening and closing cylinder arranged on the mounting guide plate; a first connecting rod and a second connecting rod are respectively hinged on the first opening and closing movable member and the second opening and closing movable member, and the other ends of the first connecting rod and the second connecting rod are hinged to each other; an extension rod of the opening and closing cylinder is connected at a hinge point between the first connecting rod and the second connecting rod to drive the first opening and closing movable member and the second opening and closing movable member hinged on the first connecting rod and the second connecting rod to move closer to or farther from each other to clamp or release a workpiece;

[0006] The flipping mechanism includes a first clamping and flipping block arranged on the first opening and closing movable member, and a second clamping and flipping block arranged on the second opening and closing movable member. A flipping motor is arranged on the first clamping and flipping block to drive the first clamping and flipping block to flip and then synchronously drive the second clamping and flipping block and the workpiece to flip.

[0007] Furthermore, a first guide rail slider is arranged between the first opening and closing movable member and the mounting guide rail plate, and the first opening and closing movable member is fixed on the first guide rail slider; a second guide rail slider is arranged between the second opening and closing movable member and the mounting guide rail plate, and the second opening and closing movable member is fixed on the second guide rail slider.

[0008] Furthermore, a sliding guide rail is arranged below the opening and closing cylinder, a slider is movably arranged on the sliding guide rail, and the slider can connect the extension rod of the opening and closing cylinder and the hinge point of the first connecting rod and the second connecting rod.

[0009] Furthermore, opening and closing limit blocks are provided at both ends of the mounting guide plate to limit the maximum moving distance of the first opening and closing movable member and the second opening and closing movable member.

[0010] Furthermore, bearing plates are provided on the first opening and closing movable member and the second opening and closing movable member, and the clamping and flipping block is mounted on the bearing plates via bearings.

[0011] Furthermore, a self-positioning device is provided on the second opening and closing movable member to automatically position the member after it is flipped into place.

[0012] Furthermore, the self-positioning device includes a spring block and a compression spring, the spring block is arranged on the second opening and closing movable part through the compression spring, the end of the spring block is arranged to be hemispherical, and the clamping and flipping block is provided with a hemispherical groove that cooperates with the end of the spring block, so that the spring block can pop out and clamp the hemispherical groove of the clamping and flipping block after flipping into place.

[0013] Furthermore, the first opening and closing movable member and the second opening and closing movable member are configured to be L-shaped.

[0014] Beneficial effects:

[0015] The utility model can realize the gripping of products on both sides and flip the products 180°, and at the same time has a buffering braking and positioning effect on the flipping mechanism. It is suitable for gripping large products, with stable gripping and high flipping accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a grabbing and flipping mechanism according to an embodiment of the utility model;

[0017] Figure 2 This is another structural schematic diagram of a grabbing and flipping mechanism according to an embodiment of the utility model;

[0018] Figure 3 It is a front view structural schematic diagram of a grabbing and flipping mechanism in an embodiment of the utility model;

[0019] Figure 4 It is a side view structural diagram of a grabbing and flipping mechanism according to an embodiment of the utility model;

[0020] Icons: Install guide plate 1, first guide slider 2, second guide slider 3, sliding guide 4, slider 5, first opening and closing moving part 6, second opening and closing moving part 7, opening and closing cylinder 8, first connecting rod 9, second connecting rod 10, first clamping and flipping block 12, second clamping and flipping block 13, flipping motor 14, bearing plate 15, bearing 16, opening and closing limit block 17, adjustable rod 18, spring block 19, compression spring 20, hemispherical groove 21, workpiece 22. DETAILED DESCRIPTION

[0021] Combination Figures 1 to 4 As shown, this embodiment provides a grabbing and flipping mechanism, including: a connecting rod opening and closing mechanism and a flipping mechanism, wherein the connecting rod opening and closing mechanism includes a mounting guide plate 1, a first opening and closing movable member 6 and a second opening and closing movable member 7 suitable for linear movement below the mounting guide plate 1, and an opening and closing cylinder 8 arranged on the mounting guide plate 1; the first opening and closing movable member 6 and the second opening and closing movable member 7 are respectively hinged with a first connecting rod 9 and a second connecting rod 10, and the other ends of the first connecting rod 9 and the second connecting rod 10 are hinged to each other; the extension rod of the opening and closing cylinder 8 is connected to the hinge point of the first connecting rod 9 and the second connecting rod 10 to drive the first opening and closing movable member 6 and the second opening and closing movable member 7 hinged on the first connecting rod 9 and the second connecting rod 10 to move closer to or away from each other to clamp or release the workpiece 22;

[0022] The flipping mechanism includes a first clamping and flipping block 12 arranged on the first opening and closing movable member 6, and a second clamping and flipping block 13 arranged on the second opening and closing movable member 7. A flipping motor 14 is arranged on the first clamping and flipping block 12 to drive the first clamping and flipping block 12 to flip and then synchronously drive the second clamping and flipping block 13 and the workpiece 22 to flip.

[0023] In the present embodiment, the installation guide rail plate 1 can be connected to a mobile mechanism or to a multi-axis manipulator, so that the grabbing and flipping mechanism can be driven to move to a specified position by a mobile mechanism or a lifting cylinder. A guide rail is provided at the bottom of the installation guide rail plate 1, and a first guide rail slider 2 and a second guide rail slider 3 are movably connected to the guide rail, the first guide rail slider 2 is fixedly connected to the first opening and closing moving member 6, and the second guide rail slider 3 is fixedly connected to the second opening and closing moving member 7, so that the first opening and closing moving member 6 and the second opening and closing moving member 7 are smoother when opening and closing on the installation guide rail plate 1, and the power required for driving can be reduced. A mounting plate is extended out from the front side of the installation guide rail plate 1 for installing the opening and closing cylinder 8, and a sliding guide rail 4 is also provided below the installation plate, and a slider 5 is movably provided on the sliding guide rail 4, and the slider 5 can connect the extension rod of the opening and closing cylinder 8 and the hinge point of the first connecting rod 9 and the second connecting rod 10.

[0024] The first opening and closing movable member 6 and the second opening and closing movable member 7 are arranged in an L shape, and the horizontal panels of the first opening and closing movable member 6 and the second opening and closing movable member 7 are respectively connected to the first guide rail slider 2 and the second guide rail slider 3, and the other panels of the first opening and closing movable member 6 and the second opening and closing movable member 7 that are perpendicular to the horizontal panels are parallel to each other, and are rotatably connected with the first clamping and flipping block 12 or the second clamping and flipping block 13, and the shapes of the two clamping and flipping blocks can be arranged to be the same, and the two are used to clamp the workpiece 22, specifically, the first clamping and flipping block 12 or the second clamping and flipping block 13 is provided with a structure suitable for adapting to the clamping workpiece 22, and the structure can be adaptively arranged according to the changes of the workpiece 22.

[0025] The first connecting rod 9 and the second connecting rod 10 are hinged on the horizontal panels of the first opening and closing movable member 6 and the second opening and closing movable member 7, respectively, and the other ends of the first connecting rod 9 and the second connecting rod 10 are hinged to each other, and the hinge points of the first connecting rod 9 and the second connecting rod 10 are connected to the slider 5, so that when the slider 5 moves back and forth, the angle between the first connecting rod 9 and the second connecting rod 10 can be expanded or reduced, and the first opening and closing movable member 6 and the second opening and closing movable member 7 can be further driven to approach or move away from each other, and are used to clamp the workpiece 22 when they are close to each other, and are used to loosen the workpiece 22 when they are away from each other.

[0026] In one embodiment, opening and closing limit blocks 17 are provided at both ends of the mounting guide plate 1 to limit the maximum moving distance of the first opening and closing movable member 6 and the second opening and closing movable member 7. The opening and closing limit blocks 17 may be vertical plates provided at both ends of the mounting guide plate 1; preferably, an adjustable rod 18 may be provided on the opening and closing limit blocks 17 to adjust the limiting distance, and the moving distance of the opening and closing movable plate is limited by the end of the adjustable rod 18.

[0027] The first opening and closing movable member 6 and the second opening and closing movable member 7 are provided with a bearing plate 15, and the clamping and flipping block is installed on the bearing plate 15 through a bearing 16. A flipping motor 14 is fixedly provided on the side of the first opening and closing movable member 6, and the flipping motor 14 can adopt a servo motor to facilitate the control of the accuracy of the flipping angle. The flipping motor 14 is connected to the clamping and flipping block arranged on the first opening and closing movable member 6 to drive the clamping and flipping block to rotate. In this embodiment, by arranging bearings 16 on the two opening and closing movable members for installing the clamping and flipping blocks, the accuracy and efficiency of the flipping of the clamping and flipping blocks can be improved, the wear on the opening and closing movable plates can be reduced, and the clamping is made more stable by the double-sided clamping method, and it is suitable for the clamping of large workpieces 22. Through this solution, the workpiece 22 can be grasped on both sides and the workpiece 22 can be flipped 180°.

[0028] Combination Figure 2 and Figure 3As shown, in a preferred embodiment, the second opening and closing movable member 7 is provided with a self-positioning device to automatically position after flipping into place. The self-positioning device described here comprises a spring block 19 and a compression spring 20, the spring block 19 is arranged on the second opening and closing movable member 7 by the compression spring 20, the end of the spring block 19 is arranged to be hemispherical, and the clamping flipping block is provided with a hemispherical groove 21 that cooperates with the end of the spring block 19, so that the spring block 19 pops out of the hemispherical groove 21 that blocks the clamping flipping block after flipping into place, providing a certain rotation-limiting force, playing a buffering brake and positioning effect. When the flipping motor 14 continues to exert force, the elastic force of the compression spring 20 can be overcome to make the spring block 19 escape from the hemispherical groove 21, and flipping is realized again. The self-positioning device described here is provided with two on the second opening and closing movable member 7, which can be fixed on the bearing plate 15 connected to the second opening and closing movable member 7, so that it is more stable after flipping into place.

[0029] In this embodiment, the flipping mechanism is arranged on the connecting rod opening and closing mechanism. When the connecting rod opening and closing mechanism clamps the workpiece 22 on both sides, the grabbing and flipping mechanism can be lifted up from the tooling fixture by the lifting cylinder, and the flipping motor 14 drives the clamping and flipping block to flip the product 180°. After the flipping is completed, it is put back into the tooling fixture. The flipping mechanism can be flipped at any time. The flipping can be performed synchronously during the movement or lifting of the connecting rod opening and closing mechanism, thereby improving work efficiency. The self-positioning device is further arranged to realize buffering braking and positioning functions, thereby ensuring the accuracy after flipping into place.

[0030] It should be understood that the above are only preferred implementations of the present utility model, and the protection scope of the present utility model is not limited to the above embodiments. All technical solutions under the concept of the present utility model belong to the protection scope of the present utility model.

[0031] The above description of the drawings used in the implementation manner only shows certain embodiments of the utility model and should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

Claims

1. A grabbing and flipping mechanism, characterized in that: include: Connecting rod opening and closing mechanism and flipping mechanism, wherein: The connecting rod opening and closing mechanism comprises a mounting guide plate, a first opening and closing movable member and a second opening and closing movable member suitable for linear movement below the mounting guide plate, and an opening and closing cylinder arranged on the mounting guide plate; a first connecting rod and a second connecting rod are respectively hinged on the first opening and closing movable member and the second opening and closing movable member, and the other ends of the first connecting rod and the second connecting rod are hinged to each other; an extension rod of the opening and closing cylinder is connected at a hinge point between the first connecting rod and the second connecting rod to drive the first opening and closing movable member and the second opening and closing movable member hinged on the first connecting rod and the second connecting rod to move closer to or farther from each other to clamp or release a workpiece; The flipping mechanism includes a first clamping and flipping block arranged on the first opening and closing movable member, and a second clamping and flipping block arranged on the second opening and closing movable member. A flipping motor is arranged on the first clamping and flipping block to drive the first clamping and flipping block to flip and then synchronously drive the second clamping and flipping block and the workpiece to flip.

2. The grabbing and flipping mechanism according to claim 1, characterized in that: A first guide rail slider is arranged between the first opening and closing movable member and the mounting guide rail plate, and the first opening and closing movable member is fixed on the first guide rail slider; a second guide rail slider is arranged between the second opening and closing movable member and the mounting guide rail plate, and the second opening and closing movable member is fixed on the second guide rail slider.

3. The grabbing and flipping mechanism according to claim 1, characterized in that: A sliding guide rail is arranged below the opening and closing cylinder, a sliding block is movably arranged on the sliding guide rail, and the sliding block can connect the extension rod of the opening and closing cylinder and the hinge point of the first connecting rod and the second connecting rod.

4. The grabbing and flipping mechanism according to claim 1, characterized in that: Opening and closing limit blocks are arranged at both ends of the mounting guide rail plate to limit the maximum moving distance of the first opening and closing movable member and the second opening and closing movable member.

5. The grabbing and flipping mechanism according to claim 1, characterized in that: The first opening and closing movable member and the second opening and closing movable member are provided with bearing plates, and the clamping and flipping block is mounted on the bearing plates via bearings.

6. The grabbing and flipping mechanism according to claim 1, characterized in that: A self-positioning device is provided on the second opening and closing movable member so as to automatically position the second opening and closing movable member after being flipped into position.

7. The grabbing and flipping mechanism according to claim 6, characterized in that: The self-positioning device includes a spring block and a compression spring. The spring block is arranged on the second opening and closing movable member through the compression spring. The end of the spring block is arranged to be hemispherical. The clamping and flipping block is provided with a hemispherical groove that cooperates with the end of the spring block, so that the spring block can pop out and clamp the hemispherical groove of the clamping and flipping block after flipping into place.

8. The grabbing and flipping mechanism according to claim 1, characterized in that: The first opening and closing movable member and the second opening and closing movable member are configured in an L shape.

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