Diameter-variable multifunctional three-jaw gripping and stripping device

Abstract

The utility model discloses a variable diameter type multifunctional three-jaw gripping and stripping device which comprises a gripping seat, the periphery of the gripping seat is hinged with jaw bodies in a circumferential array, a driving rod is rotatably arranged in the middle of the gripping seat in a penetrating mode, and a stretching assembly is arranged between the lower end of the driving rod and the jaw bodies. The driving rod rotates to drive the claw bodies to contract inwards and expand outwards, the distance between the driving rod and the claw bodies can be adjusted through the stretching assembly, and detachable chucks are arranged at the lower ends of the claw bodies. The stretching assembly comprises a transmission block in threaded connection with the lower end of the driving rod, and an adjusting rod with the two ends hinged to the claw body and the transmission block correspondingly. The device has the advantage of gripping and stripping large-batch cylinder parts, can grip and strip products with various sizes in a variable range at the same time, and can expand the chuck according to actual production task requirements, so that the clamping compatibility of the device is better.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of columnar part clamping and stripping, especially to a variable-diameter multifunctional three-jaw grabbing and stripping device. BACKGROUND

[0002] In some assembly production operations, the protective cover of the columnar part needs to be stripped in the test process before assembly. It is difficult to strip the protective cover manually because the protective cover is subjected to air extraction when it is shipped. The general stripping method is easy to scratch the product surface, has low product processing efficiency, and requires high labor intensity of the worker, which is difficult to meet the assembly production demand in large quantities. In addition, the problem of loose cooperation between the chuck and the product needs to be solved for stripping multiple different size parts at a time, and the problems of chuck disassembly method and chuck used in different scenes need to be solved. SUMMARY

[0003] Therefore, the utility model provides a variable-diameter multifunctional three-jaw grabbing and stripping device which has high use efficiency, simple structure, easy operation, and good compatibility.

[0004] To achieve the above purpose, the utility model adopts the following technical scheme:

[0005] A variable-diameter multifunctional three-jaw grabbing and stripping device, comprising a grab seat, a plurality of claw bodies arranged in a circumferential array are hingedly arranged on the periphery of the grab seat, a driving rod is rotationally arranged in the grab seat in a penetrating manner, a stretching assembly is arranged between the lower end of the driving rod and the claw body, the plurality of claw bodies are driven to contract inward and expand outward through the rotation of the driving rod, the distance between the driving rod and the claw body is adjustable through the stretching assembly, and a detachable chuck is arranged at the lower end of the claw body.

[0006] The stretching assembly comprises a transmission block screwed with the lower end of the driving rod, and an adjusting rod hingedly connected with the claw body and the transmission block at both ends.

[0007] As a further improvement of the above technical scheme:

[0008] Preferably, a plurality of adjusting holes are arranged on the adjusting rod.

[0009] Preferably, adjusting rods are arranged on the left and right sides of the claw body.

[0010] Preferably, a rotating handle is arranged at the upper end of the driving rod.

[0011] Preferably, a clamping block is fixedly arranged at the lower end of the claw body, and the chuck is clamped on the clamping block.

[0012] Preferably, the chuck comprises a connecting portion connected with the claw body, and a clamping portion connected with the connecting portion, the clamping portion is in a circular arc shape, and a plurality of the clamping portions form a circle.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] 1、The device has the advantages of grabbing and stripping a large number of cylindrical parts, can simultaneously grab and strip a plurality of size products in a variable range, and can expand the chuck according to actual production task requirements, so that the clamping compatibility is better.

[0015] 2、The body part adopts lightweight design, reduces the weight of the part under the condition of meeting the strength, can greatly reduce the labor intensity of the operator, can reduce material loss, and effectively improves the product production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole perspective view structure schematic diagram of the utility model;

[0017] Figure 2 It is a bottom view structure schematic diagram of the utility model.

[0018] In the figure: 1, grab seat; 2, claw body; 3, driving rod; 4, chuck; 41, connecting portion; 42, clamping portion; 5, transmission block; 6, adjusting rod; 61, adjusting hole; 7, rotating handle; 8, clamping block. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0020] In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more than two; the directions or position relations indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like are based on the directions or position relations shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the devices or elements indicated must have a particular direction, be constructed and operated in a particular direction, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0022] As attached Figure 1 With attached Figure 2 As shown, the technical solution is composed of the following components: a gripping seat 1, a claw body 2, a driving rod 3, a chuck 4, a transmission block 5, an adjusting rod 6, a rotating handle 7, and a clamping block 8.

[0023] The three claw bodies 2 are hinged to the claw seat by six fixing screws 7 and six fixing nuts 8. At the same time, the three claw bodies 2 are arranged in a circular array about the claw seat. The driving rod 3 is installed through the slot at the upper end of the claw seat and can rotate on the claw seat. The transmission block 5 is screwed to the lower end of the driving rod 3.

[0024] The transmission block 5 is triangular in shape and has three raised blocks on it. One end of the six adjustment plates is hingedly mounted on the left and right sides of the three raised blocks, and the other end is hingedly mounted on the left and right sides of the three claw bodies 2 through fixed nuts. At the same time, a rotating handle 7 is installed on the upper end of the drive rod 3;

[0025] By rotating the handle 7, the driving rod 3 is driven to rotate on the claw seat, and the transmission block 5 is screwed to the driving rod 3 to move up and down (the transmission block 5 remains stationary on the horizontal plane under the action of the six adjustment rods 6). At the same time, due to the up and down movement of the transmission block 5, the three claws 2 are simultaneously closed inward or expanded outward.

[0026] A plurality of adjustment holes 61 are provided on the adjustment rod 6. Therefore, by synchronously adjusting the corresponding adjustment holes 61 on the adjustment rod 6, the spacing between the adjustment rods 6 can be shortened. As a result, when the relative positions of the transmission block 5 and the gripping seat 1 remain unchanged, the diameter of the circle constructed by the lower parts of the three claws 2 becomes smaller. Similarly, if the adjustment holes 61 are adjusted, the spacing between the adjustment rods 6 is lengthened, and the diameter of the circle constructed becomes larger, thereby making it possible to clamp cylinders of different diameters.

[0027] The claw body 2 is connected with the chuck 4 at the lower end, and the two are connected through clamping, which is mainly to facilitate replacement while ensuring stability during work. The claw body 2 is provided with left and right clamping blocks 8 at the lower end, the chuck 4 includes a connecting portion 41 and a clamping portion 42, the connecting portion 41 is provided with a connecting groove matched with the clamping block 8, the clamping block 8 is slid into the connecting groove from one end of the clamping block 8, so that the clamping effect is formed, thereby ensuring the convenience of replacement and the stability during work. Meanwhile, the clamping portion 42 is arranged on the inner wall of the connecting portion 41, the clamping portions 42 of the three chucks 4 are all directed to the center of the driving rod 3, and the clamping portion 42 is in the shape of a circular arc, and after being combined, the three chucks 4 can be spliced into a perfect circle. Therefore, the thickness and shape of the chuck 4 can also be adjusted to adjust the diameter of the cylinder to be gripped.

[0028] When the diameters of the cylinders of different specifications are not greatly different, the diameters can be adjusted by adjusting the chucks 4, and when the diameters are greatly different, the diameters can be adjusted by adjusting the holes 61. The two can be used simultaneously or individually.

[0029] The use process of the utility model is as follows:

[0030] The three-claw grabbing and stripping device is used in two steps: one is to replace the specific chuck 4, and the other is to adjust the appropriate diameter of the grabbed part.

[0031] When the specific chuck 4 is replaced, 1) first, confirm that the replaced chuck 4 matches the grabbed part, to ensure the matching of the device and the part; 2) stably install the chuck 4 into the front end of the claw, to ensure the stability of the device during use; 3) after stably installing the chucks 4 of the three claws, adjust the diameter.

[0032] When the appropriate diameter of the grabbed part is adjusted, 1) rotate the rotating handle 7 counterclockwise to make the chuck 4 open with a diameter slightly larger than that of the grabbed part; 2) after the grabbed part is inserted into the three claws; 3) rotate the rotating handle 7 clockwise to make the chuck 4 tightly fit the surface of the part. The operator pulls the rear handle of the three claws to strip the part from the original position, thereby completing the grabbing and stripping of a group of products.

[0033] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this. Any skilled person in the technical field can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A variable diameter multifunctional three-jaw grabbing and stripping device, comprising a grabbing seat (1), a plurality of jaw bodies (2) in a circumferential array are peripherally hinged to the grabbing seat (1), a driving rod (3) is penetratingly rotatably arranged in the middle of the grabbing seat (1), a stretching assembly is arranged between the lower end of the driving rod (3) and the jaw bodies (2), the plurality of jaw bodies (2) are driven to contract inwardly and expand outwardly by the rotation of the driving rod (3), characterized in that, The stretching assembly is used to adjust the distance between the driving rod (3) and the claw body (2), and the claw body (2) is provided with a detachable chuck (4) at the lower end. The stretching assembly comprises a transmission block (5) screwed with the lower end of the driving rod (3), and an adjusting rod (6) hingedly connected with the claw body (2) and the transmission block (5) at two ends.

2. The variable diameter multi-functional three jaw gripping and peeling device according to claim 1, wherein A plurality of adjusting holes (61) are arranged on the adjusting rod (6).

3. The variable diameter multi-functional three jaw gripping and peeling device according to claim 1, wherein The claw body (2) is provided with the adjusting rod (6) at left and right sides.

4. The variable diameter multi-functional three jaw gripping and peeling device according to claim 1, wherein A rotating handle (7) is arranged at the upper end of the driving rod (3).

5. The variable diameter multi-functional three jaw grabber peeling device according to claim 1, wherein, A clamping block (8) is fixedly arranged at the lower end of the claw body (2), and the chuck (4) is clamped on the clamping block (8).

6. The variable diameter multi-functional three jaw grabber peeling device according to claim 1, wherein, The chuck (4) comprises a connecting part (41) connected with the claw body (2) and a clamping part (42) connected with the connecting part (41), the clamping part (42) is in the shape of a circular arc, and a plurality of clamping parts (42) form a circle.

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