Special-shaped hard oil pipe riveting and welding tooling

Abstract

The utility model relates to the field of riveting and welding, disclose a special-shaped hard oil pipe riveting and welding frock, including welding platform and be located on the welding platform and be used for limiting pipe end positioning assembly of oil pipe and joint, pipe end positioning assembly includes first pipe end positioning assembly and second pipe end positioning assembly, first pipe end positioning assembly includes fixed on the bottom plate one of welding platform, the oil pipe limiting plate one of being located bottom plate one one end, the joint positioning plate one of being located bottom plate one other end and the muscle board one of being located between oil pipe limiting plate one and joint positioning plate one, be equipped with U type limiting groove on oil pipe limiting plate one, be equipped with the positioning hole for fixed joint on joint positioning plate one, second pipe end positioning assembly includes fixed on the bottom plate two of welding platform and the joint positioning plate two of being located through a plurality of height limiting plate level on the top of bottom plate, be equipped with the positioning hole for fixed joint on joint positioning plate two. The utility model has realized the quick, accurate positioning of oil pipe and joint, effectively promoted the operation safety and work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of riveting and welding, and in particular to a riveting and welding fixture for irregularly shaped hard oil pipes. Background Technology

[0002] In the hydraulic systems of construction machinery (such as excavators, skid steer loaders, pile drivers, rotary drilling rigs, cranes, etc.), rigid oil pipes (such as steel pipes) are widely used to transmit high-pressure hydraulic oil. These oil pipes usually need to be connected to fixed oil pipe joints by riveting to form a stable pipeline system.

[0003] Existing methods for riveting rigid tubing and connectors often employ marking for positioning or simple clamps, relying on the operator's experience and visual inspection. This makes it difficult to precisely control the relative position (such as angle and parallelism) between the tubing and connector, resulting in poor dimensional consistency among different workpieces. When assembled onto the machine, problems such as interference between the tubing and other components or misalignment of bolt holes frequently occur. Furthermore, traditional clamping methods require separate positioning and clamping of the tubing and connector, which is cumbersome, time-consuming, and unsuitable for mass production, becoming a production bottleneck. In addition, during riveting and welding, if the workpiece is not securely fixed, there is a risk of loosening. Operators need to hold the workpiece in one hand and perform the operation with the other, which is not only physically demanding but also increases the risk of burns, injuries, and other safety accidents.

[0004] Therefore, it is necessary to develop a special tooling that can achieve rapid and accurate positioning and effectively improve operational safety and efficiency to solve the above problems. Utility Model Content

[0005] This utility model aims to solve the technical problems existing in the prior art. To this end, this utility model provides a riveting and welding fixture for irregularly shaped hard oil pipes that has a reasonable structure, is easy to operate, and can achieve rapid and accurate positioning, effectively improving the safety and efficiency of the operation.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] A welding fixture for riveting irregularly shaped hard oil pipes is provided, including a welding platform and a pipe end positioning assembly disposed on the welding platform for limiting the pipe ends and the joints that connect with the oil pipes. The pipe end positioning assembly includes a first pipe end positioning assembly for horizontally aligning the pipe ends with the joints and a second pipe end positioning assembly for vertically aligning the pipe ends with the joints. The first pipe end positioning assembly includes a base plate fixed to the welding platform, an oil pipe limiting plate disposed at one end of the base plate, a joint positioning plate disposed at the other end of the base plate, and a reinforcing plate disposed between the oil pipe limiting plate and the joint positioning plate. The oil pipe limiting plate is provided with a U-shaped limiting groove, and the joint positioning plate is provided with positioning holes for fixing the joints. The second pipe end positioning assembly includes a second base plate fixed to the welding platform and a second joint positioning plate horizontally disposed above the base plate by multiple height limiting plates. The second joint positioning plate is provided with positioning holes for fixing the joints.

[0008] In some optional embodiments, at least one pipe body positioning component is also included for supporting and positioning the oil pipe body. The pipe body positioning component includes a base plate three, oil pipe limiting plates two disposed at both ends of the base plate three, and a reinforcing plate two connecting the two oil pipe limiting plates. The oil pipe limiting plate two is provided with a U-shaped limiting groove.

[0009] In some optional embodiments, the base plate one, base plate two and base plate three are each provided with four oval holes and two pin holes, and are fixed to the welding platform by four screws and two fixing pins.

[0010] In some optional embodiments, the width of the U-shaped limiting groove is 0.5 to 1 mm greater than the outer diameter of the oil pipe, and the opening of the U-shaped limiting groove is rounded.

[0011] In some optional embodiments, a riveting and welding fixture is composed of two pipe end positioning components or two pipe end positioning components and at least one pipe body positioning component, and multiple riveting and welding fixtures are distributed on the welding platform.

[0012] In some alternative implementations, the riveting and welding fixtures are staggered and do not interfere with each other.

[0013] In some alternative embodiments, the welding platform is provided with forklift fork holes.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model utilizes a pipe end positioning component to position the pipe openings and joints at both ends of the oil pipe, enabling the pipe openings and joints to achieve high docking accuracy. If the pipe body is long, a pipe body positioning component can also be used to position and support it, achieving precise constraint on the oil pipe. This effectively avoids problems such as assembly interference and misalignment of bolt holes caused by positioning errors. It also eliminates the risk of burns and injuries caused by handling the workpiece by hand, and reduces the labor intensity of workers. It has the advantages of simple, quick, and labor-saving operation.

[0016] 2. Integrate multiple sets of different types of riveting and welding fixtures onto the welding platform to meet the riveting and welding needs of various oil pipes. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in 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 only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0018] Figure 1 This is a schematic diagram of the clamping structure of the first embodiment of the riveting and welding fixture for irregularly shaped hard oil pipes provided by this utility model.

[0019] Figure 2 This is a schematic diagram of the clamping structure of the second embodiment of the riveting and welding fixture for irregularly shaped hard oil pipes provided by this utility model.

[0020] Figure 3 This is a schematic diagram of the clamping structure of the third embodiment of the riveting and welding fixture for irregularly shaped hard oil pipes provided by this utility model.

[0021] Figure 4 This is a schematic diagram of the clamping structure of the fourth embodiment of the riveting and welding fixture for irregularly shaped hard oil pipes provided by this utility model.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1—Welding platform, 1.1—Forklift fork hole, 2—Pipe end positioning assembly, 2a—First pipe end positioning component, 2a.1—Base plate one, 2a.2—Oil pipe limiting plate one, 2a.3—Joint positioning plate one, 2a.4—Firming plate one, 2b—Second pipe end positioning component, 2b.1—Base plate two, 2b.2—Height limiting plate, 2b.3—Joint positioning plate two, 3—Pipe body positioning component, 3.1—Base plate three, 3.2—Oil pipe limiting plate two, 3.3—Firming plate two, 10—Oil pipe, 20—Joint, 100—U-shaped limiting groove, 200—Oval hole, 300—Pin hole. Detailed Implementation

[0024] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] Furthermore, the terms "first," "second," etc., used in this utility model are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. The terms "installed," "connected," and "joined" should be interpreted broadly; for example, they may refer to a fixed connection, a detachable connection, or an integral connection; they may refer to a mechanical connection or an electrical connection; they may refer to a direct connection or an indirect connection through an intermediate medium; and they may refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0029] Example 1

[0030] Please refer to the attached instruction manual. Figure 1 and attached Figure 2 Or attached Figure 1 and attached Figure 3 This embodiment provides a riveting and welding fixture for irregularly shaped hard oil pipes, including a welding platform 1 and a pipe end positioning component 2 disposed on the welding platform for limiting the pipe ends of the oil pipe 10 and the joint 20 that is connected to the oil pipe.

[0031] As attached Figure 2 Or attached Figure 3 As shown, the pipe end positioning assembly 2 includes a first pipe end positioning component 2a that horizontally aligns the pipe end with the connector and a second pipe end positioning component 2b that vertically aligns the pipe end with the connector, wherein:

[0032] The first pipe end positioning assembly 2a includes a base plate 2a.1 fixed on the welding platform 1, a pipe limiting plate 2a.2 located at one end of the base plate, a joint positioning plate 2a.3 located at the other end of the base plate, and a reinforcing plate 2a.4 located between the pipe limiting plate and the joint positioning plate. The pipe limiting plate 2a.2 is provided with a U-shaped limiting groove 100, and the joint positioning plate 2a.3 is provided with a positioning hole for fixing the joint 20.

[0033] The second pipe end positioning assembly 2b includes a base plate 2b.1 fixed to the welding platform and a joint positioning plate 2b.3 horizontally positioned above the base plate by multiple height limiting plates 2b.2. The joint positioning plate 2b.3 is provided with positioning holes for fixing the joint 20.

[0034] Specific Implementation Method 1: As shown in the attached document Figure 1 As shown, the riveting and welding fixture includes a welding platform and two first pipe end positioning components disposed on the welding platform. The two first pipe end positioning components are disposed at both ends of the oil cylinder and are used to support and position the oil pipe and the joint.

[0035] Specific Implementation Method Two: Refer to the attached instruction manual Figure 2 As shown, the riveting and welding fixture includes a welding platform and a first pipe end positioning component and a second pipe end positioning component disposed on the welding platform. The two first pipe end positioning components are disposed at both ends of the oil cylinder and are used to support and position the oil pipe and the connector. The difference from Embodiment 1 is that one end of the oil pipe is horizontally connected to the connector, and the other end is vertically connected to the connector.

[0036] The above-described embodiments are applicable to the riveting and welding of shorter oil pipes. For the riveting and welding of longer oil pipes, this embodiment further includes a pipe body positioning component 3. (See attached...) Figure 2 Or attached Figure 3 As shown, in this embodiment, at least one pipe body positioning component 3 is provided on the riveting and welding platform 3 to support and position the oil pipe body. The pipe body positioning component 3 includes a base plate 3.1, an oil pipe limiting plate 3.2 provided at both ends of the base plate 3, and a reinforcing plate 3.3 connecting the two oil pipe limiting plates. The oil pipe limiting plate 3.2 is provided with a U-shaped limiting groove 100.

[0037] Specific Implementation Method Three: Based on Specific Implementation Method One or Specific Implementation Method Two, as shown in the appendix... Figure 3As shown, at least one pipe body positioning component is set on the welding platform along the pipe path to support and position the pipe body.

[0038] Preferably, in this embodiment, the base plate 2a.1, the base plate 2b.1, and the base plate 3.1 are each provided with four oval holes 200 and two pin holes 300. They are fixed to the welding platform by four screws and two fixing pins, so that the pipe end positioning component and the pipe body positioning component can be accurately positioned on the welding platform by four screws and two pins.

[0039] Preferably, in this embodiment, the width of the U-shaped limiting groove 100 is 0.5 to 1 mm greater than the outer diameter of the oil pipe 10, and the opening of the U-shaped limiting groove has rounded corners, which facilitates the oil cylinder to enter the U-shaped limiting groove. At the same time, it can also detect the shape deviation of the oil pipe (if it cannot be placed into the U-shaped limiting groove of the pipe end positioning component and the pipe body positioning component, it means that there is a deviation in the shape of the oil cylinder), ensuring accurate positioning while preventing the product from jamming.

[0040] Preferably, the welding platform 1 is provided with forklift fork holes 1.1 to facilitate forklift transportation.

[0041] During the specific riveting process: Place the rigid oil pipe into the riveting fixture and use the pipe end positioning component and the pipe body positioning component to limit its position; fix the joint to the joint positioning plate of the pipe end positioning component with bolts; clamp the joint and the oil pipe opening with pipe clamps (pipe clamps made of arc-shaped plates welded to the jaws of the hydraulic cylinder can be used) to ensure that the coaxiality of the joint and the oil pipe is ≤0.3mm; the operator performs the riveting operation, and after the welding is completed, release the pipe clamps and remove the riveted oil pipe.

[0042] This embodiment utilizes a pipe end positioning component to position the pipe openings and connectors at both ends of the oil pipe, enabling the pipe openings and connectors to achieve high docking accuracy. If the pipe body is long, a pipe body positioning component can also be used to position and support it, achieving precise constraint on the oil pipe. This effectively avoids problems such as assembly interference and misalignment of bolt holes caused by positioning errors. It also eliminates the risk of burns and injuries from handling the workpiece by hand, and reduces the labor intensity of workers. It has the advantages of simple, quick, and labor-saving operation.

[0043] This embodiment achieves the goal of "positioning upon placement" of the workpiece. The clamping process is simplified from the original tedious marking, comparison, and manual fixing to a few simple actions. It transforms the "manual work" that relies on the experience and visual inspection of skilled workers into a standardized "step-by-step operation." The clamping time for a single product can be reduced by several times, making it very suitable for mass production and effectively alleviating production bottlenecks. Even new employees, after simple training, can use this fixture to stably produce high-quality products, reducing the company's personnel training costs and quality control difficulties.

[0044] Example 2

[0045] Based on Embodiment 1, a riveting and welding fixture is composed of two pipe end positioning components 2 or two pipe end positioning components 2 and at least one pipe body positioning component 3, as shown in the attached figure. Figure 4 As shown, in this embodiment, multiple sets of riveting and welding fixtures are distributed on the welding platform 1. The riveting and welding fixtures are staggered and do not interfere with each other. Compact integration is achieved by adjusting the layout and height of each riveting and welding fixture, which can meet the riveting and welding processing of various oil pipes (Note: oil pipes are processed in batches according to type, and several types will not be processed at the same time).

[0046] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made using the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A riveting and welding fixture for irregularly shaped hard oil pipes, characterized in that: Includes a welding platform and a pipe end positioning assembly mounted on the welding platform for limiting the pipe ends and the joints that connect to the pipe. The pipe end positioning assembly includes a first pipe end positioning assembly that horizontally aligns the pipe end with the connector and a second pipe end positioning assembly that vertically aligns the pipe end with the connector, wherein: The first pipe end positioning assembly includes a base plate fixed to a welding platform, an oil pipe limiting plate at one end of the base plate, a joint positioning plate at the other end of the base plate, and a reinforcing plate between the oil pipe limiting plate and the joint positioning plate. The oil pipe limiting plate is provided with a U-shaped limiting groove, and the joint positioning plate is provided with a positioning hole for fixing the joint. The second pipe end positioning assembly includes a base plate two fixed to the welding platform and a joint positioning plate two horizontally positioned above the base plate by multiple height limiting plates. The joint positioning plate two is provided with positioning holes for fixing the joint.

2. The riveting and welding fixture for irregularly shaped hard oil pipes according to claim 1, characterized in that: It also includes at least one pipe body positioning component for supporting and positioning the oil pipe body. The pipe body positioning component includes a base plate three, oil pipe limiting plates two disposed at both ends of the base plate three, and a reinforcing plate two connecting the two oil pipe limiting plates. The oil pipe limiting plate two is provided with a U-shaped limiting groove.

3. The riveting and welding fixture for irregularly shaped hard oil pipes according to claim 1, characterized in that: The base plate 1, base plate 2 and base plate 3 are each provided with four oval holes and two pin holes, which are fixed to the welding platform by four screws and two fixing pins.

4. The riveting and welding fixture for irregularly shaped hard oil pipes according to claim 1 or 2, characterized in that: The width of the U-shaped limiting groove is 0.5 to 1 mm greater than the outer diameter of the oil pipe, and the opening of the U-shaped limiting groove is rounded.

5. The riveting and welding fixture for irregularly shaped hard oil pipes according to claim 2, characterized in that: A set of riveting and welding fixtures consists of two pipe end positioning components or two pipe end positioning components and at least one pipe body positioning component, and multiple sets of riveting and welding fixtures are distributed on the welding platform.

6. The riveting and welding fixture for irregularly shaped hard oil pipes according to claim 5, characterized in that: The various riveting and welding fixtures are staggered and do not interfere with each other.

7. The riveting and welding fixture for irregularly shaped hard oil pipes according to claim 1, characterized in that: The welding platform is equipped with forklift fork holes.

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