Small flange girth welding protection tool assembly

Abstract

The utility model belongs to the technical field of flange protection, and particularly relates to a small flange girth welding protection tool assembly. The protection tool comprises two upper cambered plates and two lower cambered plates, the two upper cambered plates are detachably connected through a plurality of positioning columns, the two lower cambered plates are detachably connected through a plurality of positioning columns, mounting holes are formed in one ends of the upper cambered plates and one ends of the lower cambered plates, a connecting lock is arranged between the two upper cambered plates, and a connecting lock is arranged between the two lower cambered plates. Through holes are formed in the upper portion and the lower portion of the connecting lock, and the through holes and the mounting holes are aligned and detachably connected through positioning pins. The protection tool is convenient and fast to mount and dismount, and welding slag can be prevented from damaging the plane of the small flange and a threaded hole in the welding process.

Description

TECHNICAL FIELD

[0001] The utility model belongs to flange protection technical field, especially relate to a small flange ring welding protection frock assembly. BACKGROUND

[0002] When the small flange of the commercial vehicle axle housing is welded, the welding slag and spatter can cause damage to the small flange plane and the threaded hole, so it is necessary to protect the above positions during welding. In actual production, the small flange position is limited by welding heat and space, and it is difficult to protect the small flange. SUMMARY

[0003] The utility model provides a small flange ring welding protection frock assembly, solveed the problem that the small flange is not easy to protect in the welding process because of space limitation.

[0004] The technical scheme of the utility model is as follows:

[0005] A small flange ring welding protection frock assembly, comprising two upper arc plates and two lower arc plates, the two upper arc plates are detachably connected by a plurality of positioning columns between the two upper arc plates, and the two lower arc plates are detachably connected by a plurality of positioning columns between the two lower arc plates, one end of the upper arc plate and one end of the lower arc plate are provided with mounting holes, a connecting lock is arranged between the two upper arc plates and the two lower arc plates, a through hole is formed in the connecting lock, the through hole is aligned with the mounting hole and detachably connected by a positioning pin.

[0006] Through the above technical scheme, the two upper arc plates can protect the upper two sides of the small flange, the two lower arc plates can protect the lower two sides of the small flange, the two upper arc plates and the two lower arc plates are designed in the form of upper and lower split, which can protect the small flange in all directions, and is convenient to install and disassemble, the positioning columns are connected with the two upper arc plates and the two lower arc plates, the connecting lock and the positioning pin are matched, which can connect the two upper arc plates and the two lower arc plates together, and improve the firmness and stability of the two upper arc plates and the two lower arc plates when protecting the small flange.

[0007] Optionally, one end of the lower arc plate away from the mounting hole is fixedly connected with a baffle, the baffle is perpendicular to the side surface of the lower arc plate, the side of the baffle facing the mounting hole is elastically connected with a protection buckle, the protection buckle is rotatably connected with the two lower arc plates through the positioning column, and the upper end of the protection buckle hooks one positioning column between the two upper arc plates.

[0008] Through the above technical scheme, the design of the baffle and the protection buckle can quickly open and lock the two upper arc plates and the two lower arc plates, improve the efficiency and convenience of the whole protection frock when installing and protecting the small flange.

[0009] Optionally, the protection buckle is T-shaped, one end of the T-shaped head of the protection buckle is fixedly connected with a slotted bolt, the other end of the T-shaped head of the protection buckle is hook-shaped and hooks a positioning column between the two upper arc-shaped plates, and the side surface of the T-shaped tail of the protection buckle is in contact with the upper end of the baffle.

[0010] Through the above technical scheme, one end of the protection buckle is hook-shaped, the connection between the protection buckle and the positioning column can be improved in firmness, and the upper end of the baffle is in contact with the protection buckle, so that the stability of the protection buckle in hooking the positioning column can be improved.

[0011] Optionally, a cylindrical spiral compression spring is arranged between the slotted bolt and the baffle, one end of the cylindrical spiral compression spring is fixedly connected with the side surface of the baffle, and the other end of the cylindrical spiral compression spring is fixedly connected with the slotted bolt.

[0012] Through the above technical scheme, the cylindrical spiral compression spring can generate an elastic force between the protection buckle and the baffle, so that the protection buckle can quickly lock and open the two upper arc-shaped plates and the two lower arc-shaped plates by using the elastic force, and the working efficiency is improved.

[0013] Optionally, the slotted bolt is sleeved with a spring washer.

[0014] Through the above technical scheme, the spring washer can provide an anti-loosening mechanism to prevent the slotted bolt from loosening during operation.

[0015] Optionally, cross-slotted bolts are respectively inserted into both ends of the positioning column.

[0016] Through the above technical scheme, the cross-slotted bolts can respectively fix the positioning column with the upper arc-shaped plates and the lower arc-shaped plates, and improve the firmness of the positioning column in connecting the two upper arc-shaped plates and the two lower arc-shaped plates.

[0017] Optionally, shaft elastic retaining rings are respectively sleeved on both ends of the positioning pin.

[0018] Through the above technical scheme, the shaft elastic retaining rings can fix and lock the positioning pin with the upper arc-shaped plates and the lower arc-shaped plates.

[0019] After the above technical scheme is adopted, the beneficial effects of the present application are as follows:

[0020] In the protection tool, the upper arc-shaped plates and the lower arc-shaped plates are used to protect the small flange end face of the axle housing in the ring welding small flange process, so as to prevent the welding slag from damaging the small flange plane and the threaded hole during welding; the protection tool is of a convenient dismounting structure, one end is a connecting lock and positioning pin structure, and the other end is a spring buckle structure, so that the whole is convenient to dismount and install, and has good protection effect.BRIEF DESCRIPTION OF DRAWINGS BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0022] Figure 1 is a front view of the protective tool in the embodiment;

[0023] Figure 2 is a side view of the protective tool in the embodiment;

[0024] Figure 3 is a top view of the protective tool in the embodiment;

[0025] Figure 4 is a perspective view of the protective tool in the embodiment;

[0026] Figure 5 is an exploded view of the protective tool in the embodiment Figure I ;

[0027] Figure 6 is an exploded view of the protective tool in the embodiment Figure II ;

[0028] Figure 7 is a structural schematic view of the protective tool in the embodiment protecting the small flange end surface of the axle housing.

[0029] Marked: 1, upper arc plate; 2, lower arc plate; 3, positioning column; 4, cross slot bolt; 5, mounting hole; 6, connecting lock; 7, through hole; 8, positioning pin; 9, elastic retaining ring for shaft; 10, baffle; 11, protective buckle; 12, slotted bolt; 13, cylindrical spiral compression spring; 14, spring washer. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0031] The embodiment of the present application discloses a small flange ring welding protective tool assembly.

[0032] EMBODIMENT

[0033] According to Figures 1 to 7 As shown in the figure, a small flange ring welding protection tool assembly includes an upper protection plate and a lower protection plate, the upper protection plate includes two parallel and spaced upper arc-shaped plates 1, the lower protection plate includes two parallel and spaced lower arc-shaped plates 2, the two upper arc-shaped plates 1 are detachably connected through a plurality of positioning columns 3, the two lower arc-shaped plates 2 are detachably connected through a plurality of positioning columns 3, and the two ends of the positioning column 3 are respectively inserted with a cross slot bolt 4.

[0034] One end of the upper arc-shaped plate 1 and one end of the lower arc-shaped plate 2 are provided with a mounting hole 5, and a connecting lock 6 is arranged between the two upper arc-shaped plates 1 and between the two lower arc-shaped plates 2, the connecting lock 6 includes upper and lower through holes 7, a positioning pin 8 is inserted in the through hole 7, the two through holes 7 of the connecting lock 6 are respectively aligned with the two mounting holes 5 of the upper arc-shaped plate 1 and the two mounting holes 5 of the lower arc-shaped plate 2, the positioning pin 8 passes through the mounting hole 5 and the through hole 7, and the two upper arc-shaped plates 1 and the two lower arc-shaped plates 2 are detachably connected, and the two ends of the positioning pin 8 are respectively sleeved with an elastic retaining ring 9 for shaft.

[0035] One end of the lower arc-shaped plate 2 away from the mounting hole 5 is fixedly connected with a baffle 10, the baffle 10 and the lower arc-shaped plate 2 are integrally arranged, the baffle 10 is perpendicular to the side surface of the lower arc-shaped plate 2, the side of the baffle 10 facing the mounting hole 5 is elastically connected with a protection buckle 11, the protection buckle 11 is movably inserted on one positioning column 3, the protection buckle 11 is rotatably connected with the two lower arc-shaped plates 2 through the positioning column 3, the protection buckle 11 is T-shaped, one end of the T-shaped head of the protection buckle 11 is fixedly connected with a slotted bolt 12, the other end of the T-shaped head of the protection buckle 11 is hooked and hooks one positioning column 3 between the two upper arc-shaped plates 1, a cylindrical spiral compression spring 13 is arranged between the slotted bolt 12 and the baffle 10, one end of the cylindrical spiral compression spring 13 is fixedly connected with the side surface of the baffle 10, the other end of the cylindrical spiral compression spring 13 is fixedly connected with the slotted bolt 12, the slotted bolt 12 is sleeved with a spring washer 14, and the side surface of the T-shaped tail of the protection buckle 11 is in contact with the upper end of the baffle 10.

[0036] The cross slot bolt 4 is selected as an M6 hexagonal head cross slot bolt 4, and the slotted bolt 12 is selected as an M5 hexagonal head slotted bolt 12. The upper arc-shaped plate 1 and the lower arc-shaped plate 2 can protect the small flange plane and the threaded hole; the positioning column 3 can connect and position two upper arc-shaped plates 1 and two lower arc-shaped plates 2; the cross slot bolt 4 can fix the positioning column 3 with the upper arc-shaped plate 1 and the lower arc-shaped plate 2 respectively, thereby improving the firmness of the positioning column 3 connecting two upper arc-shaped plates 1 and two lower arc-shaped plates 2; the connection lock 6 and the positioning pin 8 cooperate to connect two upper arc-shaped plates 1 and two lower arc-shaped plates 2 with each other; the shaft elastic check ring 9 can fix and lock the positioning pin 8 with the upper arc-shaped plate 1 and the lower arc-shaped plate 2; the protection buckle 11 acts as a protection tool switch, which can switch two upper arc-shaped plates 1 and two lower arc-shaped plates 2 to realize installation and disassembly, thereby facilitating the protection, installation and disassembly of the small flange; the cylindrical helical compression spring 13 can provide supporting force and has elastic effect on the baffle 10; the slotted bolt 12 can fix the cylindrical helical compression spring 13 on the protection buckle 11; and the spring washer 14 can provide an anti-loosening mechanism to prevent the slotted bolt 12 from loosening during operation.

[0037] Working principle:

[0038] The small flange bridge shell to be fully welded is placed on the small flange welding special machine work station with the large flange face upward. The small flange ring welding protection tool assembly is opened to protect the outer contour of the small flange of the bridge shell, two upper arc-shaped plates 1 are respectively placed on the upper ends of the two sides of the small flange, two lower arc-shaped plates 2 are respectively placed on the lower ends of the two sides of the small flange, the end portions of the two upper arc-shaped plates 1 are connected and fixed by the connection lock 6 and the positioning pin 8, the end portions of the two lower arc-shaped plates 2 are connected and fixed, the two upper arc-shaped plates 1 are connected and the two lower arc-shaped plates 2 are connected by the cooperation of the positioning column 3 and the cross slot bolt 4, after the connection, the two end faces of the small flange are protected by the two upper arc-shaped plates 1 and the two lower arc-shaped plates 2, the T-shaped tail of the protection buckle 11 is rotated, under the elastic force of the cylindrical helical compression spring 13, the T-shaped head of the protection buckle 11 is hooked at one end of the corresponding position of the positioning column 3, the elastic force of the cylindrical helical compression spring 13 also makes the T-shaped tail of the protection buckle 11 contact and fit with the upper end of the baffle 10, at this time, the protection tool is in the locked state, after welding is completed, the T-shaped tail of the protection buckle 11 is pushed upward, the T-shaped head of the protection buckle 11 is separated from the positioning column 3, the two upper arc-shaped plates 1 are separated, the two lower arc-shaped plates 2 are separated, and the protection tool is in the open state.

[0039] The protective tool in the utility model, in the ring welding small flange process utilizes the upper arc plate 1 and the lower arc plate 2, protects the bridge shell small flange end face, prevents the welding slag from causing damage to the small flange plane and threaded hole in the welding process, does not affect the small flange welding, and will not cause welding adhesion, causes the phenomenon such as not good cooperation in the subsequent assembly process.

[0040] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or position relationship shown based on the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In the description of the utility model, unless otherwise specified and limited, it is necessary to explain that the terms "mounting", "connection", "connection" should be understood broadly, for example, can be mechanical connection or electrical connection, can be the communication of two elements inside, can be directly connected, or indirectly connected through an intermediate medium, and for ordinary skilled persons in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0041] The above is only the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A small flange circumferential welding protective tooling assembly, characterized in that: It includes two upper bow-shaped plates and two lower bow-shaped plates. The two upper bow-shaped plates and the two lower bow-shaped plates are detachably connected by a number of positioning pins. Each of the upper bow-shaped plates and the lower bow-shaped plates has a mounting hole at one end. A connecting lock is provided between the two upper bow-shaped plates and the two lower bow-shaped plates. The connecting lock has through holes at the top and bottom. The through holes are aligned with the mounting holes and are detachably connected by positioning pins.

2. The small flange circumferential welding protective fixture assembly according to claim 1, characterized in that: One of the lower bow-shaped plates has a baffle fixedly connected to one end away from the mounting hole. The baffle is perpendicular to the side of the lower bow-shaped plate. A protective buckle is elastically connected to the side of the baffle facing the mounting hole. The protective buckle is rotatably connected to the two lower bow-shaped plates through a positioning post. The upper end of the protective buckle hooks onto a positioning post between the two upper bow-shaped plates.

3. The small flange circumferential welding protective fixture assembly according to claim 2, characterized in that: The protective buckle is T-shaped, with a grooved bolt fixedly connected to one end of the T-shaped head. The other end of the T-shaped head is hook-shaped and hooks onto a positioning post between the two upper arched plates. The side of the T-shaped tail of the protective buckle is in contact with and fits against the upper end of the baffle.

4. The small flange circumferential welding protective fixture assembly according to claim 3, characterized in that: A cylindrical helical compression spring is provided between the grooved bolt and the baffle. One end of the cylindrical helical compression spring is fixedly connected to the side of the baffle, and the other end of the cylindrical helical compression spring is fixedly connected to the grooved bolt.

5. The small flange circumferential welding protective fixture assembly according to claim 4, characterized in that: The grooved bolt is fitted with a spring washer.

6. The small flange circumferential welding protective fixture assembly according to claim 1, characterized in that: The two ends of the positioning post are respectively fitted with cross-grooved bolts.

7. The small flange circumferential welding protective fixture assembly according to claim 1, characterized in that: The two ends of the positioning pin are respectively fitted with shaft elastic retaining rings.

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