A chuck suction cup combined clamping device

Abstract

The present invention discloses a chuck and suction cup combined clamping device, which belongs to the technical field of clamping equipment, and comprises a suction cup, a clamping claw and three track disks arranged coaxially from top to bottom, wherein the second and third track disks are fixedly connected, and the first and second track disks are driven by a driving mechanism to rotate relative to each other; the three track disks are respectively provided with different guide rails; the clamping claw moves along the guide rails on the first and second guide disks to control their clamping and unloading, and the suction cup moves along the track on the third guide disk to control its axial extension and contraction along the first track disk; when the clamping claw moves radially along the first guide disk, the suction cup does not move axially along the third guide disk, and when the clamping claw is stretched to the maximum state, the suction cup moves axially along the third guide disk again. The present invention integrates and integrates the structures of the chuck and the suction cup, reduces the volume of the combined equipment, reduces the overall quality of the equipment, and is conducive to reducing the operating energy consumption. At the same time, the two can still be used independently to expand the range of clamping objects.

Description

Technical Field

[0001] The invention relates to the technical field of clamping equipment, in particular to a chuck and suction cup combined clamping device. Background Art

[0002] The chuck is a widely used workpiece clamping device. Some chucks, such as the three-jaw chuck, also have a centering function. When using it, the object needs to be placed between the jaws, and then the jaws are close to each other to clamp the object. It has a strong clamping force on the object and is very suitable for processing lathes, but it is not suitable for clamping fragile objects. At the same time, due to the limited distance between the jaws, it is difficult to clamp large objects. The vacuum suction cup uses negative pressure to adsorb the suction cup and the object together. It has no requirements on the size of the object, but it is more demanding on the working environment. It requires that a closed space be formed between the suction cup and the object to generate negative pressure to achieve the effect of suction. Therefore, the combination of the two can expand the applicable scenarios and scope of the clamping device.

[0003] At present, there are clamping devices that combine chucks and suction cups, which can be roughly divided into two categories. One is to use a suction cup to adsorb an object, and use the centering of the chuck to move the object so that the suction center of the suction cup is located at the geometric center of the object. During use, both clamp the object at the same time. This combination cannot expand its applicable scenarios. The other is to combine the suction cup and the chuck, and choose one to clamp the object when using it. This combination can expand the range of clamping objects, but the current combinations of this type simply set the suction cup and the chuck on a base. Compared with sharing a base, the suction cup or the chuck is selected to clamp the object according to the need to clamp the object. Overall, the integration is low and the equipment is large. Summary of the invention

[0004] In order to solve the deficiencies of the existing technical conditions, the present invention provides a chuck and suction cup combined clamping device. The present invention integrates the suction cup and the chuck into one, and the suction cup can be extended and retracted along the hollow part of the chuck. When the suction cup needs to be used, the claws of the chuck are opened and the suction cup is extended from the chuck, thereby reducing the size of the equipment.

[0005] The specific scheme of the present invention is as follows:

[0006] A chuck and suction cup combined clamping device comprises a suction cup, a clamping claw, a driving mechanism, and a first track disc, a second track disc, and a third track disc arranged coaxially from top to bottom, wherein the first track disc and the second track disc are both annular, the hollow parts of the two are aligned, and the second track disc is fixedly connected to the third track disc; the first track disc, the second track disc, and the third track disc are respectively provided with a first guide rail, a second guide rail, and a third guide rail; the first guide rail comprises an equal-diameter arc segment whose center coincides with the central axis of the first track disc, and a variable-diameter arc segment whose one end is connected to the equal-diameter arc segment and the other end is close to the central axis of the first track disc; the second guide rail extends radially along the second track disc; the third guide rail comprises a horizontal section parallel to the first track disc, one end of which is connected to the horizontal section and the other end is connected to the horizontal section. The suction cup is connected to the first track disk through a guide structure for limiting sliding, and the guide structure is used to limit the axial movement of the suction cup along the first track disk; the driving mechanism is used to drive the second track disk and the first track disk to rotate relative to each other; there are at least two claws, each of which corresponds to one first guide rail and one second guide rail and slides along them at the same time, and the suction cup slides along the third guide rail; when the claw slides along the variable diameter arc section, the suction cup slides along the horizontal section and the suction cup is located at the lower side of the claw, when the claw slides along the equal diameter arc section, the suction cup slides along the inclined section, and when the suction cup is located at one end of the horizontal section away from the inclined section, the adsorption end of the suction cup is located at the upper side of the claw.

[0007] As a specific implementation of the present invention, the driving mechanism includes a gear plate coaxially fixedly connected to the second track plate, a bevel gear meshing with the gear plate, and a rotating tool, and the rotating tool is used to drive the bevel gear to rotate.

[0008] As a specific embodiment of the present invention, the clamping claw includes a clamping portion, a rod portion and a sliding portion that are fixedly connected, the rod portion passes through the first guide rail, and its two ends extend out of the first guide rail and are respectively connected to the clamping portion and the sliding portion, the second guide rail is a T-slot guide rail, and the sliding portion is arranged in the second guide rail to limit the sliding portion to slide along the second guide rail.

[0009] As a specific embodiment of the present invention, the guide structure includes a guide rod fixedly connected to the first track disk shaft and extending along its axial direction, and a guide groove extending along the axial direction of the suction cup, and the guide rod is slidably connected to the guide groove.

[0010] As a specific implementation of the present invention, the third guide rail is a T-slot guide rail, and the suction cup is slidably connected to the third guide rail via a support rod with a T-shaped structure at one end, so as to limit the suction cup to slide along the third guide rail.

[0011] As a specific implementation of the present invention, the number of the third guide rails is the same as the number of the claws.

[0012] Compared with the prior art, the present invention has the following advantages:

[0013] (1) The present invention integrates the structures of the chuck and the suction cup, and the total volume of the equipment is significantly smaller than the sum of the two, thereby reducing the volume of the combined equipment, reducing the overall weight of the equipment, and helping to reduce operating energy consumption.

[0014] (2) The two clamping structures of the device can be switched with each other and used separately without interfering with each other during use; at the same time, through ingenious construction, the switching of the two clamping structures and the loading and unloading of the chuck can be completed by rotation, which is simple to operate and does not require additional power for the switching operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is an assembly diagram of a combined clamping device in one embodiment of the present invention;

[0016] Figure 2 yes Figure 1 Layout of the middle suction cup;

[0017] Figure 3 yes Figure 1 A schematic diagram of the structure of the first guide rail;

[0018] Figure 4 yes Figure 1 The structural diagram of the third guide rail;

[0019] Figure 5 yes Figure 4 A cross-sectional view of the third guide rail;

[0020] Figure 6 yes Figure 1 A schematic diagram of a chuck in a combined clamping device in a working state;

[0021] Figure 7 yes Figure 1 A schematic diagram of the suction cup in the combined clamping device in a working state;

[0022] In the figure, the claw 100; the suction cup 200; the driving mechanism 300; the first track plate 400; the second track plate 500; the third track plate 600; the housing 700;

[0023] Clamping portion 110; rod portion 120; slider portion 130; guide groove 210; support rod 220; gear plate 310; bevel gear 320; first guide rail 410; guide rod 420; second guide rail 510; third guide rail 610; annular shell 710; bottom cover 720;

[0024] An equal-diameter arc segment 411 ; a variable-diameter arc segment 412 ; a horizontal segment 611 ; and an inclined segment 612 . DETAILED DESCRIPTION

[0025] The present invention will be further described in detail below in conjunction with embodiments and drawings, but the embodiments of the present invention are not limited thereto.

[0026] In the description of the present invention, it should be pointed out that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and should not be understood as a limitation on the present invention.

[0027] Example

[0028] The chuck-suction-cup combined clamping device of the present invention comprises a chuck 100, a suction cup 200, a driving mechanism 300, and a first track plate 400, a second track plate 500, and a third track plate 600 which are coaxially arranged from top to bottom, wherein the first track plate 400 and the second track plate 500 are both annular, and the hollow parts of the two are aligned, the second track plate 500 is fixedly connected to the third track plate 600, and the driving mechanism 300 is used to drive the second track plate 500 to rotate relative to the first track plate 400; the first track plate 400 and the second track plate The first guide rail 410, the second guide rail 510 and the third guide rail 610 are respectively arranged on the first track plate 500 and the third track plate 600; the first guide rail 410 includes a constant diameter arc segment 411 and a variable diameter arc segment 412, wherein the center of the constant diameter arc segment 411 coincides with the central axis of the first track plate 400, one end of the variable diameter arc segment 412 is connected to the constant diameter arc segment 411, and the other end is close to the central axis of the first track plate 400; the second guide rail 510 extends radially along the second track plate 500; there are at least two claws 100, and all claws 10 0 are arranged in a circular array around the central axis of the first track plate 100, and the distance between them and the central axis of the first track plate 400 is adjusted to clamp and unload objects; the number of the first rails 410 and the second guide rails 510 is equal to the number of the claws 100, and each claw 100 corresponds to a first guide rail 410 and a second guide rail 510, and slides along the two guide rails at the same time. Therefore, when the first track plate 400 and the second track plate 500 rotate relatively, the claws 100 are jointly restricted by the first guide rails 410 and the second guide rails 510 to form The operation trajectory is as follows: when the claw 100 slides along the variable diameter arc section 412 of the second guide rail 510 and the first guide rail 410, the distance between the claw 100 and the central axis of the first track plate 400 will continue to change (increase or decrease), thereby realizing the clamping and unloading actions; when the claw 100 slides along the equal diameter arc section 411 of the second guide rail 510 and the first guide rail 410, the distance between the claw 100 and the central axis of the first track plate 400 will remain constant, and at this time, each claw will maintain the maximum relative distance, that is, it will be in a fully extended state. The third guide rail 610 includes a horizontal section 611 and an inclined section 612, wherein the horizontal section 611 is parallel to the first track plate 400, one end of the inclined section 612 is connected to the horizontal section, and the other end is close to the first track plate 400; the suction cup 200 is connected to the first track plate 400 by a limited sliding connection via a guide structure, and the guide structure is used to limit the axial movement of the suction cup 200 along the first track plate 400. At the same time, the suction cup 200 slides along the third guide rail 610. Therefore, during the rotation process of the third track plate 600 relative to the first track plate 400, when the suction cup 200 slides along the horizontal section 611, it will not move along the axial direction of the first track plate 400, and when the suction cup 200 slides along the inclined section 612, it will move along the axial direction of the first track plate 400.In addition, when the claw 100 slides along the variable diameter arc section 412, that is, when the claw 100 is loading or unloading an object, the suction cup 200 slides along the horizontal section 611 and the suction cup 200 is located at the lower side of the claw 100, that is, the suction cup 200 is outside the movable range of the claw 100 and does not move axially along the first track plate 400, and thus will not affect the claw's gripping of the object; when the claw 100 slides along the equal diameter arc section 411, that is, the claw 100 is fully extended, the suction cup 200 slides along the inclined section 612, that is, it is retracted and extended axially along the first track plate 400, and when the suction cup 200 reaches the end of the horizontal section 611 away from the inclined section 612, the adsorption end of the suction cup 200 is located on the upper side of the claw 100, and can adsorb objects without being affected by the claw.

[0029] The present invention integrates and integrates the structures of the chuck and the suction cup, and the two can be used independently. Compared with the existing simple combination, the present invention has a high degree of integration and reduces the size of the equipment.

[0030] The driving mechanism 300 of the present invention is used to drive the first track plate 400 and the second track plate 500 to rotate relative to each other. In specific implementation, any one of the first track plate 400 and the second track plate 500 can be fixed, and then the other can be driven to rotate. There are many specific implementation methods. For example, in some embodiments, the housing 800 can be used to fix the first track plate 400. Figure 1 As shown, the housing 700 includes an annular shell 710 and a bottom cover 720, which are detachably connected to form a coverless box structure, the first track plate 400 is located at the opening of the coverless box structure, and the handle is fixedly connected to the annular housing 710, and the second track plate 500 and the third track plate 600 are rotatably connected to the housing 800. Of course, in other embodiments, a support frame can also be used to support the first track plate 400.

[0031] The driving mechanism 300 in the present invention is a kind of rotating driving device, and there are many specific implementation methods. For example, in some embodiments, the driving mechanism 700 includes a gear plate 310 coaxially fixedly connected to the second track plate 500, a bevel gear 320 meshing with the gear plate 310, and a rotating tool. The rotating tool is used to drive the bevel gear 720 to rotate, and specifically can be a rotating motor or a crank handle.

[0032] In the present invention, the claw 100 slides along the first guide rail 410 and the second guide rail 510 at the same time. In some embodiments, the claw 100 includes a clamping portion 110, a rod portion 120 and a sliding portion 130 that are fixedly connected. The two ends of the rod portion 120 and the rod portion 110 pass through the first guide rail 410 and are fixedly connected to the clamping portion 110 and the sliding portion 130 respectively. The second guide rail 510 is a T-slot guide rail. The sliding portion 130 is arranged in the second guide rail 510 to limit the sliding portion 130 to slide along the second guide rail 510.

[0033] In the present invention, a guide structure is provided to limit the axial movement of the suction cup 200 along the first track plate 400. There are various specific guide structures. For example, in some embodiments, the guide structure includes a guide rod 420 fixedly connected to the axis of the first track plate 400 and extending along its axial direction, and a guide groove 210 extending along the axial direction of the suction cup 200. The guide rod 420 is inserted into the guide groove 210, and the two are slidably connected.

[0034] In the present invention, the suction cup 200 needs to slide along the third guide rail 610. In some embodiments, the third guide rail 610 is a T-slot guide rail. The suction cup 200 is slidably connected to the third guide rail 610 via a support rod 220, and one end of the support rod 220 located in the third rail 610 is T-shaped, which is used to limit the suction cup 200 to slide along the third guide rail 610.

[0035] In the present invention, the number of the claws 100 can be set as needed, such as 2, or 3, and the number of the third guide rails 610 can also be selected as needed, such as 2, or the same as the number of the claws 100.

[0036] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the embodiments of the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A chuck and suction cup combined clamping device, characterized in that: include: The first track disk, the second track disk and the third track disk are coaxially arranged from top to bottom, wherein the first track disk and the second track disk are both annular, and the second track disk is fixedly connected to the third track disk; the first track disk, the second track disk and the third track disk are respectively provided with a first guide rail, a second guide rail and a third guide rail; the first guide rail comprises an equal-diameter arc segment whose center coincides with the central axis of the first track disk, and a variable-diameter arc segment whose one end is connected to the equal-diameter arc segment and whose other end is close to the central axis of the first track disk; the second guide rail extends radially along the second track disk; the third guide rail comprises a horizontal segment parallel to the first track disk, and an inclined segment whose one end is connected to the horizontal segment and whose other end is close to the first track disk; A suction cup that is limitedly and slidably connected to the first track plate via a guide structure, wherein the guide structure is used to limit the axial movement of the suction cup along the first track plate; A driving mechanism for driving the second track disk and the first track disk to rotate relative to each other; At least two claws, each of which corresponds to one of the first guide rails and one of the second guide rails and slides along them simultaneously, and the suction cup slides along the third guide rail; when the claw slides along the variable diameter arc section, the suction cup slides along the horizontal section and the suction cup is located at the lower side of the claw, when the claw slides along the equal diameter arc section, the suction cup slides along the inclined section, and when the suction cup is located at one end of the horizontal section away from the inclined section, the adsorption end of the suction cup is located at the upper side of the claw; The driving mechanism comprises a gear plate coaxially fixedly connected to the second track plate, a bevel gear meshing with the gear plate, and a rotating tool, wherein the rotating tool is used to drive the bevel gear to rotate; The clamping claw includes a clamping portion, a rod portion and a sliding block portion that are fixedly connected; the rod portion passes through the first guide rail, and its two ends extend out of the first guide rail and are respectively connected to the clamping portion and the sliding block portion; the second guide rail is a T-slot guide rail, and the sliding block portion is arranged in the second guide rail.

2. A chuck and suction cup combined clamping device according to claim 1, characterized in that: The guide structure comprises a guide rod fixedly connected to the first track plate and extending along the axial direction thereof, and a guide groove extending along the axial direction of the suction cup, and the guide rod is slidably connected to the guide groove.

3. The chuck-suction cup combined clamping device according to claim 1, characterized in that: The third guide rail is a T-slot guide rail, and the suction cup is slidably connected to the third guide rail via a support rod with a T-shaped structure at one end.

4. The chuck-suction cup combined clamping device according to claim 1, characterized in that: The number of the third guide rails is the same as that of the claws.

5. The chuck-suction cup combined clamping device according to claim 1, characterized in that: There are three claws.

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