A silencer welding positioner

Abstract

A silencer welding positioner includes a chassis with a rotating shaft coaxially rotatable on the chassis. A lower rotating plate is welded to the upper end of the rotating shaft, and a lower tray is fixed above the lower rotating plate by screws. The lower rotating plate has a pair of symmetrically arranged connecting mechanisms. An upper plate is provided at the upper end of each connecting mechanism, with a central hole and two pairs of parallel strip-shaped holes along its length. Moving screws are movably installed within these strip-shaped holes. The lower ends of the moving screws at the same end are threadedly connected to a lower movable plate, which is located below the upper plate. An upper plate is welded to the inner end of the lower movable plate, and a through hole is provided on the upper plate. This invention ensures the accuracy of the connection between the cover and end cap and the pipe fittings during pipe silencer welding through upper and lower positioning. Simultaneously, the upper plate and its arc-shaped groove, and the lower tray and its lower arc-shaped groove, provide stable positioning of the cover and end cap. Furthermore, the silencer is rotatably fixed to facilitate full welding operations.

Description

Technical Field

[0001] This utility model relates to the field of muffler processing technology, and in particular to a muffler welding positioner. Background Technology

[0002] like Figure 4 A three-dimensional structural diagram of the muffler is shown. As can be seen from the diagram, it includes a pipe 6 with micro-holes. An end cap 60 is welded to one end of the pipe 6, and the end of the end cap 60 has an arc-shaped structure. A snap cap is welded to the other end of the pipe 6, and the end of the snap cap also has an arc-shaped structure. A connecting pipe 61 is connected to the snap cap, and a flange 62 is welded to the end of the connecting pipe 61. Both the end cap 60 and the snap cap are fixed to the pipe 6 by welding. During full welding, they need to be continuously rotated to achieve a complete welding operation. The device is relatively large, thus causing many inconveniences in the welding operation. Furthermore, during spot welding, because the positions of the pipe 6, end cap 60, and snap cap are not fixed, positional misalignment is easily caused. Utility Model Content

[0003] This utility model provides a muffler welding positioner to overcome the shortcomings of the prior art and solve the problem of inconvenient welding during muffler welding, and has strong practicality.

[0004] In order to achieve the purpose of this utility model, the following technology is proposed to be adopted: A silencer welding positioner includes a chassis with a rotating shaft rotatably mounted on the chassis. A lower rotating plate is welded to the upper end of the rotating shaft. A lower tray is fixed above the lower rotating plate by screws. A pair of symmetrically arranged connecting mechanisms are provided on the lower rotating plate. An upper plate is provided at the upper end of the connecting mechanism. The upper plate has a central hole and two pairs of parallel strip holes along its length. A movable screw is movably mounted in each strip hole. The lower end of the movable screw located at the same end is threadedly connected to a lower moving plate. The lower moving plate is located below the upper plate. An upper plate is welded to the inner end of the lower moving plate. The upper plate has a through hole and is composed of a pair of symmetrical semi-circular arc plates joined together.

[0005] Furthermore, the lower wall of the upper plate is formed with an arc-shaped groove, and the upper wall of the lower tray is formed with a lower arc-shaped groove.

[0006] Furthermore, each pair of movable screws has an upper movable plate connected to its upper end by a thread. A pair of vertical plates are welded to the upper movable plate. The upper end of the vertical plate is formed with a U-shaped groove. A first recess is welded to the outer end of the upper plate. A rotating push plate is rotatably provided at the upper end of the first recess via a first shaft. An inner push rod is welded to the inner end of the rotating push plate. The rotating push plate is located between the vertical plates. The outer periphery of the inner push rod abuts against the inner wall of the U-shaped groove.

[0007] Furthermore, a handle is threadedly connected to the outer end of the rotating push plate, and the length direction of the handle is perpendicular to the length direction of the rotating push plate.

[0008] Furthermore, the connecting mechanism includes a second recess welded to the lower rotating plate. A rotating head is rotatably mounted on the upper end of the second recess via a second shaft. A pair of wing plates are welded to the other end of the rotating head. A movable rod passes through the wing plates, and an end cap is provided at the lower end of the movable rod. A spring is sleeved on the movable rod, located between the end cap and the wing plates. An upper connecting plate is threaded to the upper end of the movable rod. An L-shaped arm is welded to the upper wall of the upper connecting plate, and a slot is formed at the inner end of the L-shaped arm. Third recesses are welded to both ends of the lower wall of the upper plate. A connecting arm is rotatably mounted on the lower end of the third recess via a third shaft. A clearance groove is formed at the lower end of the connecting arm, and a fourth shaft is fixed to the lower end of the connecting arm by a nut. The fourth shaft passes through the slot. The advantages of the above technical solution are: In the process of welding pipe silencers, this utility model uses an upper and lower positioning method to ensure the accuracy of the connection between the cover and the end cover and the pipe fitting. At the same time, the upper plate and its arc-shaped groove, and the lower tray and its lower arc-shaped groove can stably limit the position of the cover and the end cover. In order to facilitate the full welding operation, the silencer is rotatably fixed.

[0009] This utility model facilitates the placement and fixing of various components of the muffler. First, the upper plate is detachably connected to the upper tray. This design facilitates the fixing of end caps, buckles, and pipe fittings. Second, it facilitates the connection between the upper plate and the lower tray. The fourth shaft only needs to be locked in the slot. During the locking process, the spring is compressed, thus making the fourth shaft stably locked in the slot, thereby improving the stability of the connection.

[0010] In this invention, the lower tray positions the end cover of the muffler using the muffler's own weight and the downward pressure of the connecting mechanism, while the upper tray fixes the cover by internal pressure merging. It also has the advantage of being easy to operate; during operation, the upper tray can be fixed by simply rotating the rotating push plate. Attached Figure Description

[0011] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will provide a further detailed description of this utility model in conjunction with the accompanying drawings.

[0012] Figure 1 A three-dimensional structure of one embodiment is shown. Figure 1 .

[0013] Figure 2 A three-dimensional structure of one embodiment is shown. Figure 2 .

[0014] Figure 3A three-dimensional structure of one embodiment is shown. Figure 3 .

[0015] Figure 4 A three-dimensional structural diagram of the muffler is shown. Detailed Implementation

[0016] like Figures 1-4 As shown, a muffler welding positioner includes a chassis 1, a rotating shaft 2 coaxially rotatable on the chassis 1, a lower rotating plate 20 welded to the upper end of the rotating shaft 2, a lower tray 21 fixed above the lower rotating plate 20 by screws, and a lower arc-shaped groove 22 formed on the upper wall of the lower tray 21. The lower rotating plate 20 has a pair of symmetrically arranged connecting mechanisms, an upper plate 44 at the upper end of each connecting mechanism, a central hole on the upper plate 44, and two pairs of parallel strip holes 45 on the upper plate 44. Moving screws 46 are movably installed within the strip holes 45. A lower movable plate 56 is threadedly connected to the lower end of the moving screws 46 located at the same end. The lower movable plate 56 is located below the upper plate 44. An upper plate 57 is welded to the inner end of the lower movable plate 56, and a through hole 59 is formed on the upper plate 57. The upper plate 57 is composed of a pair of symmetrical semi-circular arc plates, and an arc-shaped groove 58 is formed on the lower wall of the upper plate 57.

[0017] Each pair of movable screws 46 has an upper movable plate 47 connected to its upper end by a thread. A pair of vertical plates 48 are welded to the upper movable plate 47. The upper end of the vertical plate 48 is formed with a U-shaped groove 50. The outer end of the upper plate 44 is welded with a first recess 51. The upper end of the first recess 51 is rotatably provided with a rotating push plate 53 via a first shaft 52. The inner end of the rotating push plate 53 is welded with an inner push rod 54. The rotating push plate 53 is located between the vertical plates 48. The outer periphery of the inner push rod 54 abuts against the inner wall of the U-shaped groove 50. The outer end of the rotating push plate 53 is connected with a handle 55 by a thread. The length direction of the handle 55 is perpendicular to the length direction of the rotating push plate 53.

[0018] The connecting mechanism includes a second recess 3 welded to the lower rotating plate 20. The upper end of the second recess 3 is provided with a rotating head 31 rotatably via a second shaft 30. The other end of the rotating head 31 is welded with a pair of wing plates 32. A movable rod 33 passes through the wing plate 32. The lower end of the movable rod 33 is provided with an end cap 34. A spring 35 is sleeved on the movable rod 33. The spring 35 is located between the end cap 34 and the wing plate 32. The upper end of the movable rod 33 is connected to an upper connecting plate 36 by a thread. An L-shaped arm 37 is welded to the upper wall of the upper connecting plate 36. A slot 38 is formed with an opening at the inner end of the L-shaped arm 37. The lower ends of the upper plate 44 are respectively welded with third recesses 43. The lower end of the third recess 43 is provided with a connecting arm 39 rotatably via a third shaft 42. A clearance groove 41 is opened at the lower end of the connecting arm 39. A fourth shaft 40 is fixed to the lower end of the connecting arm 39 by a nut. The fourth shaft 40 passes through the slot 38.

[0019] In this embodiment, the fixing and welding of the muffler are performed in the following manner: Step 1: First, place the end cap 60 in the lower arc-shaped groove 22 of the lower tray 21 to limit and constrain the end cap 60 through the lower arc-shaped groove 22.

[0020] Step 2: Insert the fitting 6 onto the end cap 60, and ensure that the fitting 6 is in a vertical position.

[0021] Step 3: Pass the connecting tube 61 through the perforation 59 and the central hole.

[0022] Step 4: The operator rotates the rotating push plate 53 by using the handle 55, so that the inner push rod 54 rotates inward around the first axis 52. During the rotation, its outer circumference will abut against the inner wall of the U-shaped groove 50, thereby bringing the upper moving plate 47 and the two halves of the upper plate 57 closer to each other and finally merging into a disc-shaped structure.

[0023] Step 5: The operator transfers the upper end of the pipe fitting 6, such as the upper plate 57 with the buckle cap, and puts the buckle cap on the upper end of the pipe fitting 6. At this time, the arc-shaped surface of the buckle cap abuts against the inner wall of the arc-shaped groove 58.

[0024] Step 6: Position the connecting arm 39 vertically and rotate the rotating head 31 upward around the second axis 30. During rotation, pull the L-shaped arm 37 outward and finally insert the fourth axis 40 into the slot 38. At this time, the spring 35 is compressed, which will make the inner wall of the slot 38 fit tightly against the fourth axis 40. At this time, the cover, end cover 60 and pipe fitting 61 are connected together. Spot welding and full welding operations can then be performed. During the welding operation, the muffler can be rotated.

[0025] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations of this utility model fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A muffler welding positioner characterized by, Includes a chassis (1), on which a rotating shaft (2) is provided to rotate coaxially. A lower rotating plate (20) is welded to the upper end of the rotating shaft (2). A lower tray (21) is fixed above the lower rotating plate (20) by screws. A pair of symmetrically arranged connecting mechanisms are provided on the lower rotating plate (20). An upper plate (44) is provided at the upper end of the connecting mechanism. A central hole is provided on the upper plate (44). Two pairs of parallel strip holes (45) are provided on the upper plate (44). A movable screw (46) is provided in the strip hole (45). A lower moving plate (56) is connected to the lower end of the movable screw (46) at the same end by a thread. The lower moving plate (56) is located below the upper plate (44). An upper plate (57) is welded to the inner end of the lower moving plate (56). A through hole (59) is provided on the upper plate (57). The upper plate (57) is composed of a pair of symmetrical semi-circular arc plates.

2. The muffler weld locator of claim 1, wherein, The lower wall of the upper plate (57) is formed with an arc-shaped groove (58), and the upper wall of the lower tray (21) is formed with a lower arc-shaped groove (22).

3. The muffler weld locator of claim 1, wherein, Each pair of movable screws (46) has an upper movable plate (47) connected to its upper end by a thread. A pair of vertical plates (48) are welded to the upper movable plate (47). The upper end of the vertical plate (48) is formed with a U-shaped groove (50). The outer end of the upper plate (44) is welded with a first recess (51). The upper end of the first recess (51) is provided with a rotating push plate (53) that rotates through a first shaft. The inner end of the rotating push plate (53) is welded with an inner push rod (54). The rotating push plate (53) is located between the vertical plates (48). The outer periphery of the inner push rod (54) abuts against the inner wall of the U-shaped groove (50).

4. The muffler weld locator of claim 3, wherein, The outer end of the rotating push plate (53) is connected to a handle (55) by a thread, and the length direction of the handle (55) is perpendicular to the length direction of the rotating push plate (53).

5. The muffler weld locator of claim 1, wherein, The connecting mechanism includes a second recess (3) welded to the lower rotating plate (20). The upper end of the second recess (3) is rotatably provided with a rotating head (31) via a second shaft (30). The other end of the rotating head (31) is welded with a pair of wing plates (32). A movable rod (33) is threaded through the wing plates (32). The lower end of the movable rod (33) is provided with an end cap (34). A spring (35) is sleeved on the movable rod (33). The spring (35) is located between the end cap (34) and the wing plate (32). The upper end of the movable rod (33) is connected by a threaded connection. The upper connecting plate (36) is connected, and an L-shaped arm (37) is welded to the upper wall of the upper connecting plate (36). The inner end of the L-shaped arm (37) is formed with a slot (38). The lower wall of the upper plate (44) is welded with a third recess (43) at both ends. The lower end of the third recess (43) is provided with a connecting arm (39) through a third shaft (42). The lower end of the connecting arm (39) is provided with a clearance groove (41). The lower end of the connecting arm (39) is fixed with a fourth shaft (40) by a nut. The fourth shaft (40) passes through the slot (38).

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