Lifting clamping tool for rotary joint

Abstract

The utility model belongs to the field of auxiliary tools for rotary joint production, and relates to a lifting clamping tool for a rotary joint, which comprises an electric lifting platform, a positioning module is connected above the electric lifting platform, the positioning module comprises a plurality of lifting cylinders, a working platform plate is connected above the lifting cylinders, and the working platform plate is connected above the lifting cylinders. A through hole is formed in the middle of the working platform plate, and a three-jaw chuck is arranged below the through hole. When the rotary joint is used, the outer ring is placed on the working platform plate, the three-jaw chuck enters the outer ring after the working platform plate descends, and then the outer ring is expanded to be clamped, so that the rotary joint is convenient to use, the outer ring is not easy to move after being clamped, balls, gaskets and the like can be conveniently installed on the outer ring, and finally the rotary joint is assembled. According to the utility model, the assembly efficiency is obviously improved. The electric lifting platform is further included, and the positioning module can be adjusted to the height suitable for workers to operate.

Description

Technical Field

[0001] This utility model belongs to the field of auxiliary tooling for rotary joint production, and relates to a lifting clamping tooling for rotary joints. Background Technology

[0002] In the production and maintenance of rotary joints, steel balls, sealing gaskets, washers, grease fittings, inner rings, etc. need to be placed on the outer ring. If the outer ring is not positioned during assembly, it will easily move, reducing assembly efficiency. Therefore, there is an urgent need to develop an auxiliary tooling that can position the outer ring. Utility Model Content

[0003] This invention addresses the problem of easy movement of the outer ring during the assembly process by proposing a lifting clamping fixture for a rotary joint.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a lifting clamping fixture for a rotary joint, comprising an electric lifting platform, a positioning module connected above the electric lifting platform, the positioning module comprising a plurality of lifting cylinders, a work platform plate connected above the lifting cylinders, a through hole provided in the middle of the work platform plate, and a three-jaw chuck provided below the through hole.

[0005] Preferably, the three-jaw chuck includes a tripod, with a rotating shaft rotatably connected in the middle of the tripod, a base fixedly connected below the rotating shaft, three connecting plates rotatably connected to the tripod, a slide block rotatably connected to the end of the connecting plate away from the tripod, a jaw fixedly connected above the slide block, a slider fixedly connected below the slide block, and a slide rail slidably connected below the slider.

[0006] Preferably, the rotating shaft and the through hole are on the same vertical axis, and one end of the slide rail points to the center of the through hole.

[0007] Preferably, one of the slide blocks has push-pull brackets connected to both ends, and the push-pull brackets are connected to push-pull cylinders.

[0008] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0009] In use, the outer ring is placed on the work platform. After the work platform descends, the three-jaw chuck enters the outer ring and expands to clamp it. Therefore, this invention is convenient to use. Once clamped, the outer ring does not easily move, making it easy to install ball bearings, washers, etc., on it, ultimately assembling it into a rotary joint. This invention significantly improves assembly efficiency. This invention also includes an electric lifting platform that can adjust the positioning module to a suitable operating height for the worker. Attached Figure Description

[0010] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 A perspective view of a lifting clamping fixture for a rotary joint;

[0012] Figure 2 This is a top view of a lifting clamping fixture for a rotary joint.

[0013] In the above figures, 1. Electric lifting platform; 2. Positioning module; 21. Lifting cylinder; 22. Work platform plate; 3. Rotary joint; 4. Three-jaw chuck; 41. Tripod; 42. Base; 43. Connecting plate; 44. Slide seat; 45. Slider; 46. Gripper; 47. Slide rail; 48. Push-pull frame; 49. Push-pull cylinder. Detailed Implementation

[0014] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0015] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0016] like Figure 1 , Figure 2 As shown, in order to position the rotary joint 3, this utility model provides a lifting clamping fixture for the rotary joint 3, including an electric lifting platform 1, a positioning module 2 connected above the electric lifting platform 1, the positioning module 2 including several lifting cylinders 21, a work platform plate 22 connected above the lifting cylinders 21, a through hole provided in the middle of the work platform plate 22, and a three-jaw chuck 4 provided below the through hole. The electric lifting platform 1 and the three-jaw chuck 4 are both prior art and will not be described in detail here.

[0017] The method of using this utility model is as follows: First, the electric lifting platform 1 is raised, which drives the positioning module 2 installed above the electric lifting platform 1 to rise. Before the positioning rotary joint 3 is positioned, the lifting cylinder 21 is in an extended state, lifting the work platform plate 22 and placing the outer ring on the work platform plate 22, with its center roughly aligned with the center of the through hole. Then, the lifting cylinder 21 descends, and the three-jaw chuck 4 enters the outer ring through the through hole. Then, the three-jaw chuck 4 expands from the inside out to clamp the outer ring. Then, the assembly work is carried out. After the initial assembly is completed, the three-jaw chuck 4 retracts, the lifting cylinder 21 extends, and the outer ring is flipped and placed back on the work platform plate 22. The lifting cylinder 21 descends again, and the three-jaw chuck 4 expands again to position the outer ring for reverse assembly.

[0018] Furthermore, the three-jaw chuck 4 includes a tripod 41, with a pivot rotatably connected to the center of the tripod 41, allowing the tripod 41 to rotate. A base 42 is fixedly connected below the pivot, and the base 42 is fixed to the work platform plate 22. Three connecting plates 43 are rotatably connected to the tripod 41. A slide block 44 is rotatably connected to the end of the connecting plate 43 away from the tripod 41. A jaw 46 is fixedly connected above the slide block 44, and a slider 45 is fixedly connected below it. A slide rail 47 is slidably connected below the slider 45. When the tripod 41 rotates, it will drive the slider 45 to move along the slide rail 47, which in turn drives the jaw 46 to move.

[0019] Furthermore, the rotating shaft and the through hole are on the same vertical axis, and one end of the slide rail 47 points to the center of the through hole. Therefore, when the gripper 46 moves, it approaches or moves away from the center of the through hole to achieve contraction / expansion.

[0020] Furthermore, one of the slide blocks 44 is connected to a push-pull bracket 48 at each end, and the push-pull bracket 48 is connected to a push-pull cylinder 49. The two push-pull cylinders 49 are arranged in opposite directions and work together to push the slide block 44 to move back and forth, thereby enabling the three-jaw chuck 4 to quickly position the outer ring.

[0021] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A lifting clamping fixture for a rotary joint, characterized in that, The device includes an electric lifting platform, with a positioning module connected above the electric lifting platform. The positioning module includes several lifting cylinders, with a work platform plate connected above the lifting cylinders. A through hole is provided in the middle of the work platform plate, and a three-jaw chuck is provided below the through hole.

2. The lifting clamping fixture for a rotary joint according to claim 1, characterized in that, The three-jaw chuck includes a tripod, with a rotating shaft rotatably connected in the middle of the tripod. A base is fixedly connected below the rotating shaft. Three connecting plates are rotatably connected to the tripod. A slide block is rotatably connected to the end of each connecting plate away from the tripod. A jaw is fixedly connected above the slide block, and a slider is fixedly connected below it. A slide rail is slidably connected below the slider.

3. The lifting clamping fixture for a rotary joint according to claim 2, characterized in that, The rotating shaft and the through hole are on the same vertical axis, and one end of the slide rail points to the center of the through hole.

4. The lifting clamping fixture for a rotary joint according to claim 3, characterized in that, One of the slide blocks has push-pull brackets connected to both ends, and the push-pull brackets are connected to push-pull cylinders.

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