Welding positioning device for sleeve on U-shaped support

Abstract

The utility model relates to a sleeve welding positioning device on a U-shaped support. The positioning device comprises a positioning pin penetrating through the two sleeves, and the tail end of the positioning pin is connected with a fastener; the positioning block is composed of a first positioning part and a second positioning part, the first positioning part is arranged on the positioning pin and clamped between the two sleeves, the second positioning part is arranged on the first positioning part and makes contact with the outer walls of the sleeves, and the second positioning part is clamped between the two side walls of the U-shaped support. And the positioning of the two sleeves is realized through the combined action of the positioning block and the positioning pin. According to the welding positioning device, the positioning pins penetrate through the sleeves arranged in the through holes, the fasteners lock the tail ends of the positioning pins to achieve axial positioning of the U-shaped support, the positioning blocks and the positioning pins act together to achieve positioning of the two sleeves, the welding positioning device can meet the requirement of welding for positioning, manual assembly operation is facilitated, and the welding efficiency is improved. And the workpiece productivity is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bracket welding, in particular to a sleeve welding positioning device on a U-shaped bracket. Background Art

[0002] With the rapid development of manufacturing industry, welding, as a way to connect metal parts, has been widely used.

[0003] At present, U-shaped brackets are welded by robots, so the positioning requirements between the welded workpieces are very strict. Not only does the weld need to meet the strength requirements, but also the coaxiality of the two circular holes of the U-shaped bracket and the width of the U-shaped welded workpiece must meet the requirements. Therefore, there is an urgent need for a positioning device that can not only meet the positioning requirements of welding, but also facilitate manual assembly operations.

[0004] Therefore, it is necessary to improve one or more problems existing in the above-mentioned related technical solutions.

[0005] It should be noted that this section is intended to provide background or context for the technical solutions of the utility model stated in the claims. The description herein is not admitted to be prior art by inclusion in this section. Utility Model Content

[0006] The purpose of the embodiments of the utility model is to provide a sleeve welding positioning device on a U-shaped bracket, thereby overcoming one or more problems caused by the limitations and defects of the relevant technology at least to a certain extent.

[0007] The utility model provides a sleeve welding positioning device on a U-shaped bracket, which is used to position the U-shaped bracket and two sleeves welded to the U-shaped bracket. Two symmetrical through holes are opened on the two side walls of the U-shaped bracket, and the inner walls of the two through holes are respectively provided with the sleeves. The positioning device is characterized in that it includes:

[0008] A positioning pin, the positioning pin passes through the two sleeves, and the end of the positioning pin is connected to a fastener;

[0009] The positioning block is composed of a first positioning portion and a second positioning portion, the first positioning portion is arranged on the outer wall of the positioning pin and is clamped between the two sleeves, the second positioning portion is arranged on the outer wall of the first positioning portion and contacts with the outer wall of the sleeve, and the second positioning portion is clamped between the two side walls of the U-shaped bracket.

[0010] In an embodiment of the utility model, a thread is provided at the end of the positioning pin, and the fastener is a locking nut, and the fastener is threadedly connected to the positioning pin.

[0011] In an embodiment of the utility model, the sleeve and the through hole are coaxially arranged and welded.

[0012] In an embodiment of the present invention, the first positioning portion and the second positioning portion are both U-shaped shells with openings downward.

[0013] In one embodiment of the utility model, the coaxiality of the two through holes in the side wall of the U-shaped bracket is less than 0.05 mm.

[0014] In one embodiment of the present invention, the width tolerance range of the U-shaped bracket is between 0 and 0.1 mm.

[0015] In an embodiment of the present invention, the U-shaped bracket and the sleeve are made of carbon steel.

[0016] In an embodiment of the utility model, a first handle is provided on the positioning block.

[0017] In one embodiment of the utility model, a second handle is provided at the end of the positioning pin.

[0018] The technical solution provided by an embodiment of the utility model may have the following beneficial effects:

[0019] The embodiment of the utility model provides a sleeve welding positioning device on a U-shaped bracket, in which a positioning pin passes through a sleeve arranged in a through hole, and a fastener locks the end of the positioning pin to achieve axial positioning of the U-shaped bracket. The positioning block and the positioning pin work together to achieve positioning of the two sleeves. The welding positioning device can not only meet the positioning requirements of welding, but also facilitates manual assembly operations, saves time and is quick, thereby improving workpiece productivity. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present utility model, and together with the specification, are used to explain the principles of the present utility model. Obviously, the drawings described below are only some embodiments of the present utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 A schematic diagram showing the structure of a sleeve welding positioning device on a U-shaped bracket in an exemplary embodiment of the utility model;

[0022] Figure 2 A schematic diagram showing the structure of a welding workpiece in an exemplary embodiment of the utility model is shown;

[0023] Figure 3 A schematic structural diagram of a welding positioning device in an exemplary embodiment of the utility model is shown;

[0024] Figure 4 A schematic structural diagram of a positioning block in an exemplary embodiment of the utility model is shown.

[0025] Reference numerals: 100, U-shaped bracket; 101, through hole; 200, sleeve; 300, positioning pin; 301, fastener; 302, second handle; 400, positioning block; 401, first handle. DETAILED DESCRIPTION

[0026] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that the present invention will be more comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0027] In addition, the accompanying drawings are only schematic illustrations of embodiments of the present invention and are not necessarily drawn to scale. The same reference numerals in the drawings represent the same or similar parts, and their repeated descriptions will be omitted. Some of the block diagrams shown in the accompanying drawings are functional entities and do not necessarily correspond to physically or logically independent entities.

[0028] This example embodiment provides a U-shaped bracket upper sleeve welding positioning device, referring to Figure 1 As shown, the positioning device is used to position a U-shaped bracket 100 and two sleeves 200 welded to the U-shaped bracket 100. Two symmetrical through holes 101 are opened on the two side walls of the U-shaped bracket 100, and the inner walls of the two through holes 101 are respectively provided with the sleeves 200. The positioning device includes: a positioning pin 300, a fastener 301 and a positioning block 400.

[0029] The positioning pin 300 passes through the two sleeves 200 , and the end of the positioning pin 300 is connected to the fastener 301 ;

[0030] The positioning block 400 is composed of a first positioning portion and a second positioning portion, wherein the first positioning portion is arranged on the outer wall of the positioning pin 300 and is clamped between the two sleeves 200, and the second positioning portion is arranged on the outer wall of the first positioning portion and contacts the outer wall of the sleeve 200, and the second positioning portion is clamped between the two side walls of the U-shaped bracket 100.

[0031] Specifically, the welding component consists of a U-shaped bracket 100 and two sleeves 200, and the welding is performed by robot welding. In addition to meeting the weld strength requirements, the welding also strictly requires the coaxiality of the through holes 101 opened on the two side walls of the U-shaped bracket 100 and the width size of the U-shaped welding workpiece to meet the requirements. The positioning device uses the workpiece coaxiality positioning pin 300 to position the welding coaxiality. Before welding, the two sleeves 200 are respectively inserted into the through holes 101 of the two side walls of the U-shaped bracket 100, and the positioning pin 300 passes through the sleeve 200, and then the positioning block 400 is placed between the two sleeves 200, wherein the first positioning part is on the positioning pin 300 and is clamped between the two cylindrical sleeves 200, the lower surface of the first positioning part is in contact with the outer wall of the positioning pin 300, and the two ends of the first positioning part are in contact with the sleeve 200 respectively, and the second positioning part is arranged on the first positioning part and is clamped between the two side walls of the U-shaped bracket 100, the lower surface of the second positioning part is in contact with the outer wall of the sleeve 200, and the two ends of the second positioning part are in contact with the inner side of the side wall of the U-shaped bracket 100, and then the fastener 301 is tightened. When the welding is completed, the fastener 301 can be manually loosened, and the positioning block 400 can be easily removed, and then the positioning pin 300 can be taken out. The positioning device can not only meet the positioning requirements of welding, but also facilitate manual assembly operations, save time and improve productivity.

[0032] By welding the positioning device on the sleeve 200 of the above-mentioned U-shaped bracket 100, the positioning pin 300 passes through the sleeve 200 set in the through hole 101, and the fastener 301 locks the end of the positioning pin 300 to achieve axial positioning of the U-shaped bracket 100. The positioning block 400 and the positioning pin 300 work together to achieve positioning of the two sleeves 200. The welding positioning device can not only meet the positioning requirements of welding, but also facilitate manual assembly operations, save time and speed, and improve workpiece productivity.

[0033] The following will refer to Figures 1 to 4 The various parts of the welding positioning device of the sleeve 200 on the U-shaped bracket 100 in this exemplary embodiment are described in more detail.

[0034] In one embodiment, the end of the positioning pin 300 is provided with a thread, and the fastener 301 is a locking nut, and the locking nut is threadedly connected to the positioning pin 300. It should be understood that the end of the positioning pin 300 is provided with a thread, and the fastener 301 is a locking nut, and the locking nut is threadedly connected to the positioning pin 300, and the threaded connection facilitates installation and disassembly.

[0035] In one embodiment, the sleeve 200 is coaxially arranged with the through hole 101 for welding. It should be understood that the two sleeves 200 are coaxially arranged with the through hole 101 on the side wall of the U-shaped bracket 100, and the two sleeves 200 are respectively arranged in the through hole 101 of the U-shaped bracket 100. When the positioning device is installed and positioned, the sleeve 200 and the U-shaped bracket 100 are welded.

[0036] In one embodiment, the first positioning part and the second positioning part are both U-shaped shells with openings downward. It should be understood that the positioning block 400 is an integrated structure consisting of the first positioning part and the second positioning part, and the first positioning part and the second positioning part are both U-shaped shells with openings downward, wherein the length of the first positioning part is smaller than the length of the second positioning part, the first positioning part is coaxial with the second positioning part, the arc radius of the first positioning part is smaller than the arc radius of the second positioning part, and the first positioning part is below the second positioning part, forming a positioning block 400 with a step inside. The positioning block 400 and the positioning pin 300 are used together to realize the positioning of the two sleeves 200.

[0037] In one embodiment, the coaxiality of the two through holes 101 on the side wall of the U-shaped bracket 100 is less than 0.05 mm. It should be understood that the coaxiality of the two through holes 101 on the side wall of the U-shaped bracket 100 is less than 0.05 mm to meet the requirements of workpiece welding accuracy.

[0038] In one embodiment, the width tolerance of the U-shaped bracket 100 is between 0 and 0.1 mm. It should be understood that the width tolerance of the U-shaped bracket 100 is between 0 and 0.1 mm to meet the requirements of workpiece welding accuracy.

[0039] In one embodiment, the materials of the U-shaped bracket 100 and the sleeve 200 are both carbon steel. It should be understood that the materials of the U-shaped bracket 100 and the sleeve 200 are both carbon steel, but are not limited thereto.

[0040] In one embodiment, the positioning block 400 is provided with a first handle 401, and the end of the positioning pin 300 is provided with a second handle 302. It should be understood that the positioning block 400 is provided with a first handle 401, and the end of the positioning pin 300 is provided with a second handle 302, which facilitates disassembly and installation operations and improves work efficiency.

[0041] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like in the above description indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the utility model and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the utility model.

[0042] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0043] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] In the embodiments of the present utility model, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, the first feature being "above", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0045] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0046] Those skilled in the art will readily come up with other embodiments of the present invention after considering the specification and practicing the utility model disclosed herein. This application is intended to cover any variations, uses or adaptations of the present invention, which follow the general principles of the present invention and include common knowledge or customary technical means in the art that are not disclosed in the present invention. The specification and examples are to be regarded as exemplary only, and the true scope and spirit of the present invention are indicated by the appended claims.

Claims

1. A sleeve welding positioning device on a U-shaped bracket, the positioning device is used to position the U-shaped bracket and two sleeves welded to the U-shaped bracket, two symmetrical through holes are opened on the two side walls of the U-shaped bracket, and the inner walls of the two through holes are respectively provided with the sleeves, characterized in that: The positioning device comprises: A positioning pin, the positioning pin passes through the two sleeves, and the end of the positioning pin is connected to a fastener; The positioning block is composed of a first positioning portion and a second positioning portion, the first positioning portion is arranged on the outer wall of the positioning pin and is clamped between the two sleeves, the second positioning portion is arranged on the outer wall of the first positioning portion and contacts with the outer wall of the sleeve, and the second positioning portion is clamped between the two side walls of the U-shaped bracket.

2. The sleeve welding positioning device on the U-shaped bracket according to claim 1 is characterized in that: The end of the positioning pin is provided with a thread, the fastener is a locking nut, and the fastener is threadedly connected to the positioning pin.

3. The sleeve welding positioning device on the U-shaped bracket according to claim 1 is characterized in that: The sleeve is coaxially arranged with the through hole for welding.

4. The sleeve welding positioning device on the U-shaped bracket according to claim 1 is characterized in that: The first positioning portion and the second positioning portion are both U-shaped shells opening downward.

5. The sleeve welding positioning device on the U-shaped bracket according to claim 1 is characterized in that: The coaxiality of the two through holes on the side wall of the U-shaped bracket is less than 0.05 mm.

6. The sleeve welding positioning device for a U-shaped bracket according to claim 1 is characterized in that: The width tolerance range of the U-shaped bracket is between 0 and 0.1 mm.

7. The sleeve welding positioning device on the U-shaped bracket according to claim 1 is characterized in that: The U-shaped bracket and the sleeve are both made of carbon steel.

8. The sleeve welding positioning device for a U-shaped bracket according to claim 1 is characterized in that: The positioning block is provided with a first handle.

9. The sleeve welding positioning device on the U-shaped bracket according to claim 1 is characterized in that: A second handle is provided at the end of the positioning pin.

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