Non-standard sheet metal part welding positioning device

Abstract

This application discloses a non-standard sheet metal welding positioning device, relating to the technical field of sheet metal welding. It includes: an L-shaped platform; a support bracket for supporting the platform; two platform members slidably mounted on the support bracket; clamps rotatably mounted at the ends of the side and bottom surfaces of the platform, with the clamps on the side and bottom surfaces interlocking to fix the sheet metal part; and a support member rotatably positioned at the middle of the crease of the platform, rotating through the platform to further support the sheet metal part. In this application, the clamps on the side and bottom surfaces of the platform can be flipped and crossed to abut and fix the sheet metal part. Multiple tapered pins allow for multiple point contacts with the curved surface of the sheet metal part, thus securing it. Furthermore, each clamp can be individually adjusted, and its oscillating head can adjust the deflection angle, perfectly adapting to different concavities on the surface of the sheet metal part, thus possessing high practicality.

Description

Technical Field

[0001] This application relates to the technical field of sheet metal welding, and more specifically, to a non-standard sheet metal welding positioning device. Background Technology

[0002] Sheet metal is characterized by its light weight, high strength, electrical conductivity (suitable for electromagnetic shielding), low cost, and good mass production performance, leading to its widespread application in electronics, communications, automotive, and medical device industries. With the development and maturation of sheet metal processing technology, more and more machined parts are being replaced by sheet metal parts. Sheet metal parts are lighter, easier to machine, have better consistency, and are cheaper than machined parts. However, depending on the specific application requirements, sheet metal parts often require welding after being integrally formed, or additional components may need to be added.

[0003] Commonly, sheet metal parts require positioning during welding to ensure accurate positioning of the welded components. However, the inventors recognized that in order to meet the needs of various structural shapes, sheet metal parts are processed into various non-standard shapes, such as sheet metal parts with various curvatures or recesses. Common positioning fixtures mainly fix sheet metal parts by squeezing between clamping plates, which is difficult to adapt to sheet metal components with different curvatures.

[0004] To address the aforementioned issues, we provide a non-standard sheet metal welding positioning device. Summary of the Invention

[0005] To address the problems mentioned in the background art, this application provides a non-standard sheet metal welding positioning device.

[0006] The non-standard sheet metal welding positioning device provided in this application adopts the following technical solution: A non-standard sheet metal welding positioning device includes: an L-shaped platform, and further includes: The support bracket is used to support the tabletop, and the tabletop has two brackets that are slidably mounted on the support bracket. The clamps are rotatably mounted at the ends of the side and bottom surfaces of the table. The clamps on the side of the table and the clamps on the bottom surface cooperate crosswise to fix the sheet metal parts. The support component is rotatably positioned at the center of the crease in the tabletop. After rotating through the tabletop, the support component provides further support for the sheet metal parts.

[0007] In some embodiments, multiple slots are provided side by side on the side and bottom surfaces of the platform, and multiple large through slots are provided through the platform. The large through slots correspond one-to-one with the positions of the clamps, and the clamps are movably inserted into the corresponding large through slots. The fixture includes a pry bar, a straight frame, and an end piece connected in sequence. The end piece is installed at an angle on the straight frame, and a tapered pin is also installed through the outer end of the end piece. Positioning ear plates are also installed on the ends of the two sides of the platform, and the pry bar is rotatably installed in the positioning ear plates.

[0008] In some embodiments, a bolt rod is also connected to the pry bar, and a rudder disc is threaded onto the bolt rod. The bottom surface of the rudder disc can be pressed and fitted with the positioning lug for fixation.

[0009] In some embodiments, a slider is also slidably mounted in the straight frame, and a diagonal brace is hinged between the bottom of the slider and the bottom of the end. A lead screw is also installed along the axial direction in the straight frame, and a slider is threadedly fitted onto the lead screw, with a knob installed at one end of the lead screw.

[0010] In some embodiments, a primary cylinder may be installed on the end of the pry bar away from the straight frame. The primary cylinder is fixed to the bracket. A secondary cylinder may also be installed between the straight frame and the bottom of the end. The connection between the secondary cylinder and the straight frame and the end is hinged.

[0011] In some embodiments, the support includes a rotatably mounted jade plate, and the outer surface of the jade plate has a gradually increasing arc feature. A small through slot is also provided in the middle of the platform, and the jade plate is rotatably mounted in the small through slot.

[0012] In some embodiments, a mounting bracket is also installed at the top of the side of the platform, and a support cylinder is hinged to the mounting bracket. The output end of the support cylinder is hinged to one end of the outer surface of the jade plate with a small curvature.

[0013] In some embodiments, the support is provided with an L-shaped frame that mates with the platform. Slide rails are installed at both ends of the L-shaped frame. Slide blocks are connected to the top edge and the outer edge of the bottom surface of the platform. The slide blocks are slidably assembled in the slide rails.

[0014] In some embodiments, a linkage is also installed between the two platforms. The linkage includes a straight groove installed at the bottom of the lower slide rail, a positioning seat slidably mounted in the straight groove, and two rocker arms hinged to the positioning seat. The outer ends of the two rocker arms are respectively hinged to the two platforms. A telescopic drive component is also installed in the straight groove, and the output end of the telescopic drive component is connected to the positioning seat.

[0015] In some embodiments, two stops are symmetrically installed on the lower slide rail about the straight groove, and pressure rollers are rotatably installed on the ends of the stops, with the pressure rollers engaging with the swing arm on the same side.

[0016] In summary, in the technical solution of this application embodiment, the platform is designed in an L-shape, which allows the sheet metal parts to be placed between the side and bottom surfaces of the platform. The slots on the platform can fit the edges of the sheet metal parts to prevent slippage. After the clamps on the side and bottom surfaces of the platform are flipped and crossed, they can abut and fix the sheet metal parts. The swing head of the clamp is equipped with a tapered pin, which can make multiple point contacts with the curved surface of the sheet metal parts through multiple tapered pins, thereby fixing them. In addition, each clamp can be adjusted individually, and the swing head on it can also adjust the deflection angle, so as to perfectly adapt to different concavities on the surface of the sheet metal parts, making it widely applicable. In the technical solution of this application embodiment, a linkage component is also provided between the two platforms. The positioning seat can drive the swing arm to move, and the pressure roller will limit the deflection angle of the swing arm, thereby enabling the two platforms to be pulled away or closer, which facilitates the close docking of the sheet metal parts on the two platforms, making welding convenient. For long sheet metal parts, the two platforms can also work together to fix them. Attached Figure Description

[0017] Figure 1 This is an overall schematic diagram of the positioning device of this application; Figure 2 This is a schematic diagram of the positioning device of this application in conjunction with different sheet metal parts; Figure 3 This is a top view of the positioning device of this application; Figure 4 This is a schematic diagram of the platform and corresponding structure of this application; Figure 5 This application Figure 4 A schematic diagram of the structure from another perspective; Figure 6 This is a schematic diagram of the fixture in this application; Figure 7 This is a schematic diagram of another driving method for the fixture in this application; Figure 8 This is a schematic diagram of the linkage mechanism in this application.

[0018] Explanation of reference numerals in the attached drawings: 1. Platform; 11. Fixture; 1101. Large through slot; 1102. Positioning ear plate; 1103. Pry bar; 1104. Straight frame; 1105. End; 1106. Tapered pin; 1107. Bolt rod; 1108. Steering disc; 1109. Slider; 1110. Lead screw; 1111. Knob; 1112. Diagonal brace; 1113. First-stage cylinder; 1114. Second-stage cylinder; 12. Support component; 1201. Small through slot; 1202. Jade plate; 1203. Card holder; 1204. Support cylinder; 13. Card slot; 2. Bracket; 201. Slide rail; 202. Slide block; 3. Linkage components; 301. Straight groove; 302. Positioning seat; 303. Swing rod; 304. Pressure roller; 305. Stop frame; 306. Telescopic drive component. Detailed Implementation

[0019] The following is in conjunction with the appendix Figures 1 to 8 The present invention will be described in further detail below.

[0020] In the description of this application, it should be understood that the terms "thickness," "upper," "top," "bottom," "inner," "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0021] It should be noted that the accompanying drawings are schematic and not to scale. For clarity and convenience, the relative dimensions and proportions of the parts shown are exaggerated or reduced in size; all dimensions are merely illustrative and not limiting. Furthermore, the same reference numerals are used for the same structures, elements, or fittings appearing in more than two drawings to indicate similar features.

[0022] In related technologies, since the outer shell of many devices is made of sheet metal, and in order to meet the requirements of structural shape, sheet metal is processed into various non-standard shapes, especially the various curvatures set on the surface of sheet metal, which cannot be effectively adapted by normal clamping plates and fixtures. To effectively adapt to various non-standard shaped sheet metal parts, refer to Figures 1 to 5 As shown, the positioning device of this application includes an L-shaped platform 1. Multiple slots 13 arranged side by side are also provided on the side and bottom surfaces of the platform 1, which can be used to place sheet metal parts at an angle on the platform 1. The slots 13 on the side and bottom surfaces of the platform 1 can contact the upper and lower edges of the sheet metal parts, thereby facilitating initial positioning. In this embodiment of the application, a clamp 11 is also included. The clamp 11 is rotatably mounted at the end positions of the side and bottom surfaces of the table plate 1. The clamp 11 on the side surface of the table plate 1 and the clamp 11 on the bottom surface can be rotated into a cross state, thereby pressing and fixing the outer surface of the sheet metal part. Specifically, the clamp 11 includes a pry bar 1103, a straight frame 1104 and an end 1105 connected in sequence. The end 1105 is obliquely mounted on the straight frame 1104, and a tapered pin 1106 is also installed through the outer end of the end 1105. Positioning ear plates 1102 are also installed at the ends of the two sides of the platform 1. The pry bar 1103 is rotatably mounted in the positioning ear plate 1102. During operation, thanks to the design of the straight frame 1104 and the end 1105, when the pry bar 1103 is flipped, the inclined end 1105 will first contact the surface of the sheet metal part. The tapered pin 1106 on the end 1105 can make point contact with the surface of the sheet metal part, thus adapting to various curved surfaces. Through the tapered pins 1106 in the multiple clamps 11, the sheet metal part can be fixed by multiple points, which can be adapted to various curvatures on the surface of the sheet metal part and effectively fixed, thus having high practicality. Furthermore, to prevent the tapered pin 1106 from compressing and damaging the sheet metal parts, a rubber sleeve can be installed at the tip of the tapered pin 1106 to ensure stable support while avoiding scratching the sheet metal parts.

[0023] Reference Figures 4 to 6 As shown, a bolt rod 1107 is also connected to the pry bar 1103. A rudder disc 1108 is threaded onto the bolt rod 1107. The bottom surface of the rudder disc 1108 can be pressed and fixed to the positioning ear plate 1102. During operation, since the bolt rod 1107 is connected to the pry bar 1103, when it is necessary to push the clamp 11 to flip, the bolt rod 1107 can be held to adjust. After the clamp 11 is attached to the sheet metal part, when it is necessary to keep it fixed, the rudder disk 1108 can be pushed to rotate on the bolt rod 1107 and approach the positioning ear plate 1102. The clamping fit between the rudder disk 1108 and the positioning ear plate 1102 can be used to fix it. Furthermore, the multiple clamps 11 are adjusted by corresponding bolt rods 1107, and the rotation angle of each clamp 11 can be adjusted appropriately according to the protrusion and concavity of the corresponding position of the sheet metal part to ensure that the sheet metal part can be effectively fixed. In this embodiment of the application, a slider 1109 is also slidably installed in the straight frame 1104. A diagonal brace 1112 is hinged between the bottom of the slider 1109 and the bottom of the end 1105. A lead screw 1110 is also installed in the straight frame 1104 along the axial direction. The slider 1109 is threadedly fitted onto the lead screw 1110, and a knob 1111 is also installed at one end of the lead screw 1110. During operation, when there are many depressions on the surface of the sheet metal part that prevent the tapered pin 1106 from contacting the sheet metal part, the screw 1110 can be rotated by turning the knob 1111. Through the cooperation of the slider 1109 and the screw 1110, the slider 1109 and the diagonal brace 1112 can be moved. At this time, the diagonal brace 1112 acts on the end 1105 and can help push the end 1105 to rotate around the straight frame 1104 to adjust the angle, so that the tapered pin 1106 on the end 1105 can contact the sheet metal part and be fixed.

[0024] Furthermore, in order to meet the requirements of electrical automation coordination, refer to Figure 7 As shown, a primary cylinder 1113 can also be installed on the end of the pry bar 1103 away from the straight frame 1104. The primary cylinder 1113 is fixed on the bracket 2. A secondary cylinder 1114 can also be installed between the bottom of the straight frame 1104 and the end 1105. The connection between the secondary cylinder 1114 and the straight frame 1104 and the end 1105 is hinged. During operation, the primary cylinder 1113 can replace the bolt rod 1107 and the rudder disk 1108 to push the pry bar 1103 to rotate and fix the clamp 11. The secondary cylinder 1114 can replace the diagonal brace 1112 to push the end 1105 to rotate around the straight frame 1104, thus ensuring that the tapered pin 1106 can stably abut against the surface of the sheet metal part. Electrical auxiliary equipment can be installed on one side of the bracket 2 for easy connection with the primary cylinder 1113 and the secondary cylinder 1114.

[0025] To provide support for the inside of the sheet metal part, refer to Figures 3 to 5 As shown, it also includes a support member 12, which includes a rotatably disposed jade plate 1202, and the outer surface of the jade plate 1202 has a gradually increasing arc feature. A small through groove 1201 is also provided in the middle of the platform 1, and the jade plate 1202 is rotatably disposed in the small through groove 1201. During operation, the jade plate 1202 can rotate and extend through the small through slot 1201 into the interior of the platform 1. The outer surface of the jade plate 1202 has a gradually increasing arc feature. As the jade plate 1202 rotates, the radius of the displacement area of ​​the jade plate 1202 will gradually increase, thereby ensuring that the jade plate 1202 can abut against the inside of the sheet metal part for support. In order to push the jade plate 1202 to rotate, a card seat 1203 is also installed at the top of the side of the platform 1. A support cylinder 1204 is hinged on the card seat 1203. The output end of the support cylinder 1204 is hinged to the end of the outer surface of the jade plate 1202 with a smaller arc. With the cooperation of the support cylinder 1204, the jade plate 1202 can be easily pushed to rotate, which is convenient for cooperation. To support platform 1, refer to Figure 1As shown, the bracket 2 is provided with an L-shaped frame that matches the platform 1. Slide rails 201 are installed at both ends of the L-shaped frame. Slide seats 202 are connected to the top edge and the outer edge of the bottom surface of the side of the platform 1. The slide seats 202 are slidably assembled in the slide rails 201. During operation, the table plate 1 can be slidably mounted on two slide rails 201 via the slide blocks 202 on the top and bottom edges, which facilitates the sliding of the table plate 1, adjustment of its position, and better positioning during welding.

[0026] Reference Figures 1 to 3 , Figure 8 As shown, a linkage 3 is also installed between the two platform 1. The linkage 3 can easily push the two platform 1 to move synchronously. When it is necessary to weld the two sheet metal parts together, the two sheet metal parts can be fixed on the two platform 1 respectively. Then, with the cooperation of the linkage 3, the two sheet metal parts are pulled closer to the positioning, which facilitates welding. In addition, when the sheet metal part itself is long, the distance between the two platforms 1 can be adjusted by the linkage 3, so that the sheet metal part can be placed on the two platforms 1 at the same time for fixing. Specifically, the linkage 3 includes a straight groove 301 installed at the bottom of the lower slide rail 201, a positioning seat 302 is slidably mounted in the straight groove 301, and two rocker arms 303 are hingedly connected to the positioning seat 302. The outer ends of the two rocker arms 303 are respectively hinged to the two platform plates 1. A telescopic drive component 306 is also installed in the straight groove 301, and the output end of the telescopic drive component 306 is connected to the positioning seat 302. During operation, the telescopic drive 306 can push the positioning seat 302 to slide in the straight groove 301. When the positioning seat 302 slides, it can push the two swing rods 303 to move. When the swing rods 303 open, they can push the two platform 1 away from each other. When the swing rods 303 retract, they can pull the two platform 1 closer to each other. Furthermore, two baffles 305 are symmetrically installed on the lower slide rail 201 about the straight groove 301. A pressure roller 304 is rotatably installed on the end of the baffle 305. The pressure roller 304 is pressed and engaged with the swing rod 303 on the same side. Since the baffles 305 and the pressure roller 304 are fixedly set, when the positioning seat 302 slides towards the pressure roller 304, the swing rod 303 will be blocked by the pressure roller 304. As the positioning seat 302 continues to move, the swing rod 303 will gradually contract due to the pressure of the pressure roller 304, thereby pulling the two platforms 1 closer to each other. When the positioning seat 302 moves in the opposite direction, it will push the swing rod 303 to rotate like an umbrella structure, pushing the two platforms 1 away, which is convenient for adjustment.

[0027] Based on the above, in addition to non-standard sheet metal parts, ordinary sheet metal parts can also be placed on the platform 1 for fixing. Since multiple slots 13 arranged side by side are opened on the side and bottom of the platform 1, the sheet metal parts can be fixed at multiple angles. When the sheet metal parts need to be welded to other components at an angle, it is only necessary to fix the sheet metal parts on one platform 1 at a predetermined angle and fix the other components on another platform 1. When the two platform 1s are pushed close, the sheet metal parts can be attached to the other components at a predetermined angle for easy welding.

[0028] All standard parts used in this application can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from the spirit and scope of this application, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A non-standard sheet metal welding positioning device, comprising an L-shaped platform (1), characterized in that, Also includes: The bracket (2) is used to provide support for the table (1), and the table (1) is provided with two brackets that are slidably mounted on the bracket (2); The clamp (11) is rotatably installed at the end of the side and bottom of the table (1). The clamp (11) on the side of the table (1) and the clamp (11) on the bottom cooperate crosswise to fix the sheet metal parts. The support member (12) is rotatably positioned at the middle of the crease of the table plate (1). After the support member (12) rotates through the table plate (1), it is used to further support the sheet metal parts. The side and bottom surfaces of the platform (1) are provided with multiple slots (13) arranged in parallel, and multiple large through slots (1101) are also provided through the platform (1). The large through slots (1101) correspond one-to-one with the positions of the clamps (11), and the clamps (11) are movably inserted into the corresponding large through slots (1101). The clamp (11) includes a pry bar (1103), a straight frame (1104) and an end (1105) connected in sequence. The end (1105) is installed obliquely on the straight frame (1104), and a tapered pin (1106) is also installed through the outer end of the end (1105). The ends of the two sides of the platform (1) are also equipped with positioning ear plates (1102), and the pry bar (1103) is rotatably installed in the positioning ear plate (1102). The pry bar (1103) is also connected to a bolt rod (1107), and a rudder disc (1108) is threaded onto the bolt rod (1107). The bottom surface of the rudder disc (1108) and the positioning ear plate (1102) can be pressed together for fixation. A slider (1109) is also slidably installed in the straight frame (1104), and a diagonal brace (1112) is hinged between the bottom of the slider (1109) and the bottom of the end (1105). A lead screw (1110) is also installed in the straight frame (1104) along the axial direction. The slider (1109) is threadedly fitted on the lead screw (1110), and a knob (1111) is also installed at one end of the lead screw (1110). Alternatively, a primary cylinder (1113) can be installed on the end of the pry bar (1103) away from the straight frame (1104). The primary cylinder (1113) is fixed on the bracket (2). A secondary cylinder (1114) can also be installed between the bottom of the straight frame (1104) and the end (1105). The connection between the secondary cylinder (1114) and the straight frame (1104) and the end (1105) is hinged. The support member (12) includes a rotatably disposed jade plate (1202), and the outer surface of the jade plate (1202) has a gradually increasing arc feature. A small through groove (1201) is also provided in the middle of the platform (1), and the jade plate (1202) is rotatably disposed in the small through groove (1201). The top of the side of the platform (1) is also equipped with a card holder (1203), and a support cylinder (1204) is hinged on the card holder (1203). The output end of the support cylinder (1204) is hinged to one end of the outer surface of the jade plate (1202) with a small arc. The bracket (2) is provided with an L-shaped frame that cooperates with the platform (1). Slide rails (201) are installed at both ends of the L-shaped frame. Slide seats (202) are connected to the top edge and the outer edge of the bottom surface of the side of the platform (1). The slide seats (202) are slidably assembled in the slide rails (201). A linkage component (3) is also installed between the two platforms (1). The linkage component (3) includes a straight groove (301) installed at the bottom of the lower slide rail (201). A positioning seat (302) is slidably mounted in the straight groove (301). Two rocker arms (303) are hinged to the positioning seat (302). The outer ends of the two rocker arms (303) are respectively hinged to the two platforms (1). A telescopic drive (306) is also installed in the straight groove (301), and the output end of the telescopic drive (306) is connected to the positioning seat (302).

2. The non-standard sheet metal welding positioning device according to claim 1, characterized in that: Two baffles (305) are also installed symmetrically about the straight groove (301) on the lower slide rail (201). A pressure roller (304) is rotatably installed on the end of the baffle (305). The pressure roller (304) is pressed and engaged with the swing rod (303) on the same side.

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