Seat beam welding fixture

Abstract

The utility model discloses a kind of seat front beam welding jigs, involve welding jig field, including seat front beam and base, seat front beam still includes small beam sheet metal part, front shock upper fixed plate, rotating shaft and rotating shaft fixed sheet;The top of base is fixedly connected with two first support plates, the top of two first support plates is fixedly connected with processing table, the top of processing table is fixedly connected with two fixed plates, multiple support rods are fixedly connected between two fixed plates, the top of processing table is provided with the clamping assembly corresponding with small beam sheet metal part, the side wall of two fixed plates is provided with the positioning assembly corresponding with front shock upper fixed plate, the side wall of first support plate of front side is provided with the limiting assembly corresponding with rotating shaft.The utility model is positioned accurately and firmly clamped to each component of seat front beam by the cooperation of each component, guarantees the welding quality and stability, improves welding efficiency.

Description

Technical Field

[0001] This utility model relates to the field of welding fixtures, and in particular to a welding fixture for a front beam of a seat. Background Technology

[0002] In the manufacturing process of seats, the welding of the front beam is a critical step, and its welding quality directly affects the overall performance and safety of the seat. The front beam is usually welded from multiple parts, such as the small beam sheet metal part, the front shock absorber upper fixing plate, the rotating shaft and the rotating shaft fixing plate. During the welding process, these parts need to be precisely positioned and firmly clamped to ensure the dimensional accuracy and connection strength after welding. Existing seat front beam welding fixtures have problems such as inaccurate positioning and unstable clamping during use, which can lead to defects such as dimensional deviations and insufficient welding strength in the welded seat front beams, affecting the quality and service life of the seats.

[0003] Therefore, it is necessary to invent a welding fixture for the front beam of a seat to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a welding fixture for the front beam of a seat to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a seat front beam welding fixture, including a seat front beam and a base, wherein the seat front beam further includes a small beam sheet metal part, a front shock absorber upper fixing plate, a rotating shaft and a rotating shaft fixing piece; The top of the base is fixedly connected to two first support plates, and the top of the two first support plates is fixedly connected to a processing table. The top of the processing table is fixedly connected to two fixed plates, and multiple support rods are fixedly connected between the two fixed plates. The top of the processing table is provided with a clamping assembly corresponding to the small beam sheet metal part. The side walls of the two fixed plates are provided with positioning assemblies corresponding to the front shock absorber upper fixed plate. The side wall of the front first support plate is provided with a limiting assembly corresponding to the rotation shaft. The two fixed plates are provided with a clamping assembly corresponding to the rotation shaft fixing plate.

[0006] Preferably, the small beam sheet metal part is located between two fixed plates, the upper fixed plate of the front shock absorber is located in the middle of the inner side of the small beam sheet metal part, the rotating shaft fixing plate is located at the bottom of the inner side of the small beam sheet metal part, and the rotating shaft is located inside the rotating shaft fixing plate.

[0007] Preferably, the clamping assembly includes two fixing blocks fixedly connected to the top of the processing table, each fixing block having a hinge plate rotatably connected to its top, and a clamping plate rotatably connected to the top of the hinge plate. A first top cylinder is fixedly installed at the bottom of the processing table, the output end of the first top cylinder passing through the processing table and fixedly connected to a push frame, and the push frame rotatably connected to the clamping plate.

[0008] Preferably, the positioning component includes multiple fixing rods fixedly connected to the side wall of the fixing plate, and a second top cylinder is fixedly installed at the other end of the multiple fixing rods. A limit rod is fixedly connected to the output end of the second top cylinder. Corresponding mounting holes are provided on the side walls of the small beam sheet metal part and the front shock absorber upper fixing plate. The limit rod passes through the mounting holes of the small beam sheet metal part and the front shock absorber upper fixing plate.

[0009] Preferably, the limiting assembly includes a third top cylinder fixedly installed on the side wall of the front first support plate, a push block fixedly connected to the output end of the third top cylinder, a first U-shaped limiting plate fixedly connected to the outer side of the push block, a second support plate fixedly connected to the top of the base, an insertion hole corresponding to the horizontal part of the first U-shaped limiting plate opened on the side wall of the second support plate, a second U-shaped limiting plate fixedly connected to the side wall of the second support plate, the openings of the first U-shaped limiting plate and the second U-shaped limiting plate being arranged oppositely, and a pad corresponding to the rotation shaft fixedly connected to the top of the base.

[0010] Preferably, the side wall of the rotating shaft is provided with a mounting hole, and the side wall of the pushing block is fixedly connected with a plug rod.

[0011] Preferably, the clamping assembly includes a rotating rod rotatably connected between the two fixed plates, and a clamping arm is fixedly connected to the outer wall of the rotating rod.

[0012] Preferably, a support block is fixedly connected to the top of the processing table, and the top of the support block has multiple semi-circular grooves, with a stabilizing rod fixedly connected inside each semi-circular groove.

[0013] Preferably, multiple positioning rods corresponding to the sheet metal parts of the small beam are fixedly connected between the two fixing plates and at the top of the support block.

[0014] The technical effects and advantages of this utility model are as follows: By setting up a clamping assembly, the clamping plate is flipped by the first top cylinder, which can firmly clamp the small beam sheet metal part, preventing displacement of the small beam sheet metal part during welding and ensuring welding stability. The positioning assembly, through the second top cylinder pushing the limiting rod into the mounting holes on the front shock absorber upper fixing plate and the small beam sheet metal part, achieves precise positioning of the front shock absorber upper fixing plate, ensuring that the installation position of the front shock absorber upper fixing plate on the small beam sheet metal part is accurate. In the limiting assembly, the cooperation of the first U-shaped limiting plate and the second U-shaped limiting plate can push the rotating shaft tight, while the insert rod is inserted into the mounting hole of the rotating shaft to further position the rotating shaft, preventing the rotating shaft from rotating during welding and ensuring the welding accuracy of the rotating shaft. The clamping assembly can determine whether the rotating shaft fixing plate is installed in place by rotating the clamping arm, and can clamp the rotating shaft fixing plate when it is installed in place, ensuring the welding stability of the rotating shaft fixing plate. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the front beam of the seat according to this utility model; Figure 3 This is a schematic diagram of the welding fixture of this utility model without the seat front beam installed; Figure 4 This utility model Figure 1 A schematic diagram of the cross-sectional structure; Figure 5 This utility model Figure 1 A magnified structural diagram of part A; Figure 6 This is a schematic diagram of the rotating shaft limiting assembly of this utility model; Figure 7 This utility model Figure 6 A magnified structural diagram of part B.

[0016] In the diagram: 1. Front seat beam; 101. Small beam sheet metal part; 102. Front shock absorber upper fixing plate; 103. Rotating shaft; 104. Rotating shaft fixing piece; 2. Base; 3. First support plate; 4. Machining table; 5. Fixing plate; 6. Clamping assembly; 61. Fixing block; 62. Hinge plate; 63. Clamping plate; 64. First top cylinder; 65. Push frame; 7. Positioning assembly; 71. Fixing rod; 72. Second top cylinder; 73. Limiting rod; 8. Limiting assembly; 81. Third top cylinder; 82. Pushing block; 83. First U-shaped limiting plate; 84. Second support plate; 85. Second U-shaped limiting plate; 86. Pad block; 9. Clamping assembly; 91. Rotating rod; 92. Clamping arm; 10. Support rod; 11. Insert rod; 12. Support block; 13. Stabilizing rod; 14. Positioning rod. Detailed Implementation

[0017] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] This utility model provides, for example Figure 1-7 The seat front beam welding fixture shown includes a seat front beam 1 and a base 2. The seat front beam 1 also includes a small beam sheet metal part 101, a front shock absorber upper fixing plate 102, a rotating shaft 103 and a rotating shaft fixing piece 104. Two first support plates 3 are fixedly connected to the top of the base 2. A processing table 4 is fixedly connected to the top of the two first support plates 3. Two fixed plates 5 are fixedly connected to the top of the processing table 4. Multiple support rods 10 are fixedly connected between the two fixed plates 5. The multiple support rods 10 are used to support the small beam sheet metal part 101. The top of the processing table 4 is provided with a clamping component 6 corresponding to the small beam sheet metal part 101. The side walls of the two fixed plates 5 are provided with positioning components 7 corresponding to the front shock absorber upper fixed plate 102. The side wall of the front first support plate 3 is provided with a limiting component 8 corresponding to the rotating shaft 103. A clamping component 9 corresponding to the rotating shaft fixing plate 104 is provided between the two fixed plates 5. By placing the small beam sheet metal part 101 between the two fixed plates 5, The support rod 10 is used to position the small beam sheet metal part 101. The clamping assembly 6 is used to clamp the small beam sheet metal part 101. The front shock absorber upper fixing plate 102 and the rotating shaft fixing plate 104 are placed inside the small beam sheet metal part 101. The positioning assembly 7 is used to position the front shock absorber upper fixing plate 102. The clamping assembly 9 is used to clamp the rotating shaft fixing plate 104. Finally, the rotating shaft 103 is placed inside the rotating shaft fixing plate 104, and the orientation of the mounting hole on the rotating shaft 103 is adjusted so that the mounting hole on the rotating shaft 103 corresponds to the insertion rod 11. The position of the rotating shaft 103 is limited by the limiting assembly 8, thus completing the clamping of the entire seat front beam 1, which facilitates subsequent welding.

[0019] like Figure 2 As shown, the small beam sheet metal part 101 is located between two fixed plates 5, the front shock absorber upper fixed plate 102 is located in the middle of the inner side of the small beam sheet metal part 101, the rotating shaft fixing plate 104 is located at the bottom of the inner side of the small beam sheet metal part 101, and the rotating shaft 103 is located inside the rotating shaft fixing plate 104.

[0020] like Figure 5As shown, the clamping assembly 6 includes two fixing blocks 61 fixedly connected to the top of the processing table 4. The top of each fixing block 61 is rotatably connected to a hinge plate 62. The top of the hinge plate 62 is rotatably connected to a clamping plate 63. A first top cylinder 64 is fixedly installed at the bottom of the processing table 4. The output end of the first top cylinder 64 passes through the processing table 4 and is fixedly connected to a push frame 65. The push frame 65 is rotatably connected to the clamping plate 63. Through the clamping assembly 6, the first top cylinder 64 pushes the clamping plate 63 to flip, thereby clamping the small beam sheet metal part 101 on the support block 12.

[0021] like Figure 1 and Figure 3 As shown, the positioning component 7 includes multiple fixing rods 71 ​​fixedly connected to the side wall of the fixing plate 5. The other ends of the multiple fixing rods 71 ​​are jointly fixedly installed with a second top cylinder 72. The output end of the second top cylinder 72 is fixedly connected to a limit rod 73. The side walls of the small beam sheet metal part 101 and the front shock absorber upper fixing plate 102 are provided with corresponding mounting holes. The limit rod 73 passes through the mounting holes of the small beam sheet metal part 101 and the front shock absorber upper fixing plate 102. Through the positioning component 7, the front shock absorber upper fixing plate 102 is placed in the middle part of the small beam sheet metal part 101. The second top cylinder 72 pushes the limit rod 73 so that the limit rod 73 extends into the mounting holes on the front shock absorber upper fixing plate 102 and the small beam sheet metal part 101, thereby positioning the front shock absorber upper fixing plate 102.

[0022] like Figure 6 As shown, the limiting assembly 8 includes a third top cylinder 81 fixedly installed on the side wall of the front first support plate 3. A push block 82 is fixedly connected to the output end of the third top cylinder 81. A first U-shaped limiting plate 83 is fixedly connected to the outer side of the push block 82. A second support plate 84 is fixedly connected to the top of the base 2. The side wall of the second support plate 84 has an insertion hole corresponding to the horizontal part of the first U-shaped limiting plate 83. A second U-shaped limiting plate 85 is fixedly connected to the side wall of the second support plate 84. The openings of the first U-shaped limiting plate 83 and the second U-shaped limiting plate 85 are arranged opposite to each other. The top of the base 2 is fixedly connected to a pad 86 corresponding to the rotating shaft 103. The rotating shaft 103 is inserted into the rotating shaft fixing plate 104 by the set limiting component 8, so that the shaft wall of the rotating shaft 103 is in contact with the second U-shaped limiting plate 85. The third top cylinder 81 pushes the pushing block 82, and the pushing block 82 pushes the first U-shaped limiting plate 83, so that the first U-shaped limiting plate 83 is in contact with the shaft wall of the rotating shaft 103. The interaction force of the first U-shaped limiting plate 83 and the second U-shaped limiting plate 85 pushes the rotating shaft 103 tight.

[0023] like Figure 7As shown, the side wall of the rotating shaft 103 has a mounting hole, and the side wall of the push block 82 is fixedly connected to the insertion rod 11. When the third top cylinder 81 pushes the push block 82, the push block 82 pushes the insertion rod 11, so that the insertion rod 11 is inserted into the mounting hole on the rotating shaft 103. This can position the rotating shaft 103 and prevent the rotating shaft 103 from rotating during the welding process.

[0024] like Figure 1 and Figure 3 As shown, the clamping assembly 9 includes a rotating rod 91 rotatably connected to the two fixed plates 5. A clamping arm 92 is fixedly connected to the outer wall of the rotating rod 91. When the rotating shaft fixing piece 104 is installed in the small beam sheet metal part 101, the clamping arm 92 is rotated through the clamping assembly 9 so that the bottom end of the clamping arm 92 abuts against the side wall of the rotating shaft fixing piece 104. If the clamping arm 92 cannot be rotated to the bottom, the rotating shaft fixing piece 104 will not be installed in place. If the clamping arm 92 is rotated to the bottom, the rotating shaft fixing piece 104 can be clamped, ensuring the stability of the welding of the rotating shaft fixing piece 104.

[0025] like Figure 3 As shown, a support block 12 is fixedly connected to the top of the processing table 4. The top of the support block 12 has multiple semi-circular grooves, and a stabilizing rod 13 is fixedly connected in the semi-circular grooves. The stabilizing rod 13 is circular, and the circular stabilizing rod 13 provides point support for the bottom of the small beam sheet metal part 101. Compared with the traditional surface support, the point support is more stable and stable.

[0026] like Figure 4 As shown, multiple positioning rods 14 corresponding to the small beam sheet metal parts 101 are fixedly connected between the two fixed plates 5 and the top of the support block 12. The multiple positioning rods 14 can be used to position the small beam sheet metal parts 101.

[0027] The first cylinder 64, the second cylinder 72, and the third cylinder 81 are all pneumatically controlled for extension and retraction. Since the extension and retraction amounts of the first cylinder 64, the second cylinder 72, and the third cylinder 81 are fixed, no additional control system is required.

[0028] The working principle of this utility model is as follows: First, the small beam sheet metal part 101 is placed on the support rod 10 between the two fixed plates 5. Multiple positioning rods 14 are used to position the small beam sheet metal part 101. The first top cylinder 64 is activated, which pushes the push frame 65. The push frame 65 drives the clamping plate 63 to rotate, so that the clamping plate 63 clamps the small beam sheet metal part 101. Next, the front shock absorber upper fixed plate 102 is placed in the middle of the inner side of the small beam sheet metal part 101. The second top cylinder 72 is activated, which pushes the limit rod 73, so that the limit rod 73 passes through the mounting holes of the small beam sheet metal part 101 and the front shock absorber upper fixed plate 102, thus completing the positioning of the front shock absorber upper fixed plate 102. Then, the rotating shaft fixing plate 104 is placed at the bottom of the inner side of the small beam sheet metal part 101. Rotate the clamping arm 92 so that its bottom end abuts against the side wall of the rotating shaft fixing plate 104. If the clamping arm 92 can rotate to the bottom, it means that the rotating shaft fixing plate 104 is installed in place and clamped. Finally, place the rotating shaft 103 inside the rotating shaft fixing plate 104 and adjust the orientation of the mounting hole on the rotating shaft 103 so that it corresponds to the insertion rod 11. Start the third top cylinder 81. The third top cylinder 81 pushes the push block 82. The push block 82 drives the first U-shaped limiting plate 83 and the insertion rod 11 to move. The first U-shaped limiting plate 83 fits against the shaft wall of the rotating shaft 103 and cooperates with the second U-shaped limiting plate 85 to push the rotating shaft 103 tight. At the same time, the insertion rod 11 is inserted into the mounting hole on the rotating shaft 103 to complete the limiting of the rotating shaft 103. Then the welding operation can be performed.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A welding fixture for a seat front beam, comprising a seat front beam and a base, characterized in that: The front beam of the seat also includes a small beam sheet metal part, a front shock absorber upper fixing plate, a rotating shaft and a rotating shaft fixing piece; The top of the base is fixedly connected to two first support plates, and the top of the two first support plates is fixedly connected to a processing table. The top of the processing table is fixedly connected to two fixed plates, and multiple support rods are fixedly connected between the two fixed plates. The top of the processing table is provided with a clamping assembly corresponding to the small beam sheet metal part. The side walls of the two fixed plates are provided with positioning assemblies corresponding to the front shock absorber upper fixed plate. The side wall of the front first support plate is provided with a limiting assembly corresponding to the rotation shaft. The two fixed plates are provided with a clamping assembly corresponding to the rotation shaft fixing plate.

2. The seat front beam welding fixture according to claim 1, characterized in that: The small beam sheet metal part is located between two fixed plates, the upper fixed plate of the front shock absorber is located in the middle of the inner side of the small beam sheet metal part, the rotating shaft fixing plate is located at the bottom of the inner side of the small beam sheet metal part, and the rotating shaft is located inside the rotating shaft fixing plate.

3. The seat front beam welding fixture according to claim 2, characterized in that: The clamping assembly includes two fixing blocks fixedly connected to the top of the processing table. The top of each of the two fixing blocks is rotatably connected to a hinge plate. The top of the hinge plate is rotatably connected to a clamping plate. A first top cylinder is fixedly installed at the bottom of the processing table. The output end of the first top cylinder passes through the processing table and is fixedly connected to a push frame. The push frame is rotatably connected to the clamping plate.

4. A seat front beam welding fixture according to claim 3, characterized in that: The positioning assembly includes multiple fixing rods fixedly connected to the side wall of the fixing plate. The other end of the multiple fixing rods is fixedly mounted with a second top cylinder. The output end of the second top cylinder is fixedly connected with a limit rod. The side walls of the small beam sheet metal part and the front shock absorber upper fixing plate are provided with corresponding mounting holes. The limit rod passes through the mounting holes of the small beam sheet metal part and the front shock absorber upper fixing plate.

5. A seat front beam welding fixture according to claim 4, characterized in that: The limiting assembly includes a third top cylinder fixedly installed on the side wall of the first front support plate. A push block is fixedly connected to the output end of the third top cylinder. A first U-shaped limiting plate is fixedly connected to the outer side of the push block. A second support plate is fixedly connected to the top of the base. The side wall of the second support plate has an insertion hole corresponding to the horizontal part of the first U-shaped limiting plate. A second U-shaped limiting plate is fixedly connected to the side wall of the second support plate. The openings of the first U-shaped limiting plate and the second U-shaped limiting plate are arranged oppositely. A pad corresponding to the rotation shaft is fixedly connected to the top of the base.

6. A seat front beam welding fixture according to claim 5, characterized in that: The rotating shaft has mounting holes on its side wall, and the push block has a fixed rod connected to its side wall.

7. A seat front beam welding fixture according to claim 6, characterized in that: The clamping assembly includes a rotating rod rotatably connected to two fixed plates, and a clamping arm is fixedly connected to the outer wall of the rotating rod.

8. A seat front beam welding fixture according to claim 7, characterized in that: A support block is fixedly connected to the top of the processing table. The top of the support block has multiple semi-circular grooves, and a stabilizing rod is fixedly connected inside the semi-circular grooves.

9. A welding fixture for a seat front beam according to claim 8, characterized in that: Multiple positioning rods corresponding to the sheet metal parts of the small beam are fixedly connected between the two fixed plates and at the top of the support block.

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