Multi-station silencer laser welding equipment

Abstract

The utility model belongs to production equipment of silencers, and particularly relates to multi-station laser welding equipment for silencers. The multi-station silencer laser welding equipment comprises a bottom plate, and is characterized by further comprising a rotary driving assembly arranged on the bottom plate and a rotary tray connected to the rotary driving assembly, a support is installed on the bottom plate beside the rotary tray, a lifting air cylinder is fixed to the installation support, an installation plate is arranged at the movable end of the lifting air cylinder, and the rotary tray is arranged on the installation plate. A laser welding head is arranged on the mounting plate, four welding molds are uniformly distributed on the rotary tray, and the welding molds are used for bearing and positioning parts to be welded. According to the multi-station laser welding equipment for the silencer, the rotary multi-station design is adopted, feeding of parts is facilitated, the feeding speed is increased, multiple stations are rapidly switched, and the production efficiency of welding work is improved.

Description

Technical Field

[0001] The utility model belongs to muffler production equipment, in particular to multi-station muffler laser welding equipment. Background Art

[0002] The surface of the muffler shell is provided with an external cover, which is to be welded and fixed on the surface of the muffler shell. In the past, spot welding was adopted for fixing, and welding electrodes needed to be provided on both sides of the muffler shell, resulting in a complex structure of the welding equipment and a corresponding mold structure. In addition, the welding electrodes often needed to be maintained, and due to the complex mold structure, maintenance was also difficult.

[0003] Therefore, laser welding is introduced to realize the processing of the external cover and the muffler shell, and therefore, a multi-station muffler laser welding equipment is designed. Summary of the invention

[0004] In view of the shortcomings of the existing technology, the utility model designs a multi-station muffler laser welding equipment, which adopts a rotating multi-station design to facilitate the loading of parts, increase the loading speed, quickly rotate between multiple stations, and improve the production efficiency of welding work.

[0005] The technical solution of the utility model is as follows:

[0006] A multi-station muffler laser welding device includes a base plate, and is characterized in that it also includes a rotary drive assembly arranged on the base plate, and a rotary tray connected to the rotary drive assembly, a bracket is installed on the base plate next to the rotary tray, a lifting cylinder is fixed on the mounting bracket, a mounting plate is provided at the movable end of the lifting cylinder, a laser welding head is provided on the mounting plate, four welding molds are evenly distributed on the rotary tray, and the welding molds are used to carry and position the parts to be welded.

[0007] Furthermore, a plurality of pressing pins are provided on the lower surface of the mounting plate.

[0008] Furthermore, the welding mold includes a mold body, which is fixed on a rotating pallet. The mold body is provided with a positioning cavity similar to the shape of the muffler, and a circle of positioning steps is provided along the edge of the positioning cavity. A positioning protrusion is also provided on the bottom surface of the positioning cavity. The positioning protrusion is provided with a positioning boss on the upper surface, and a second positioning step is formed between the positioning boss and the upper surface of the positioning protrusion. A number of positioning support columns are also provided in the positioning cavity around the positioning protrusion.

[0009] Furthermore, the mold body is provided with connecting grooves on both sides in the length direction, and the connecting grooves are connected with the positioning cavity.

[0010] Furthermore, a detection hole is provided on the bottom surface of the positioning cavity, and a photoelectric detection sensor is provided in the detection hole.

[0011] Furthermore, the four corners of the mold body are provided with connecting countersunk holes.

[0012] Furthermore, the positioning cavity includes a first arcuate side and a second arcuate side along the length direction, and also includes a first inclined edge connected to one end of the first arcuate side and the second arcuate side, and a first straight edge connected to the other end of the first arcuate side and the second arcuate side.

[0013] In summary, the utility model has the following beneficial effects:

[0014] The utility model designs a multi-station muffler laser welding equipment. First, four welding molds are arranged on a rotating tray. The welding molds are used to support and position the muffler and the external cover. Four stations are formed on the rotating tray by adopting the design of four welding molds. The first station is used to place the external cover in the welding mold, the second station is used to place the muffler shell in the welding mold, the third station is used for laser welding, and the fourth station is used for removing the muffler shell after welding. The four-station design simplifies the action of each station, thereby shortening the time required for each station and improving the production efficiency of the welding equipment; further, the laser welding of the muffler shell and the external cover is realized, the structure is simple and the space occupied by the equipment is small, which overcomes the problems of complex equipment structure and high cost in the spot welding process in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0016] Figure 2 It is a three-dimensional schematic diagram of the welding mold of the utility model;

[0017] Figure 3 It is a top view schematic diagram of the welding mold of the utility model;

[0018] In the figure, 1 is the bottom plate.

[0019] 2 is a rotary drive component,

[0020] 3 is a rotating tray,

[0021] 4 is the mounting bracket,

[0022] 5 is a lifting cylinder, 50 is a mounting plate, 51 is a pressing ejector pin,

[0023] 6 is a laser welding head,

[0024] 7 is a welding mold, 70 is a mold body, 701 is a positioning cavity, 702 is a positioning step, 703 is a positioning convex block, 704 is a positioning boss, 705 is a second positioning step, 706 is a positioning support column, 700 is a connecting groove, 7010 is a detection hole, 707 is a connecting countersunk hole,

[0025] 7010 is the first curved side edge, 7011 is the second curved side edge, 7012 is the first inclined side edge, and 7013 is the first straight side edge. DETAILED DESCRIPTION

[0026] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0027] It should be noted that when an element is referred to as being "disposed on" or "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is referred to as being "fixed on" another element, or "fixedly connected" to another element, they may be fixed in a detachable manner or in a non-detachable manner. When an element is considered to be "connected" or "rotatably connected" to another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right", "upper", "lower" and similar expressions used are for illustrative purposes only and do not represent the only implementation method.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to restrict the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0029] The terms “first”, “second”, “third” and the like in the present invention do not represent specific quantities and orders, but are merely used to distinguish names.

[0030] See also Figures 1 to 3As shown, a multi-station muffler laser welding device includes a base plate 1, which is arranged on a frame to form a frame of the entire laser welding device, providing a mounting platform for other subsequent devices, and also includes a rotary drive component 2 arranged on the base plate, and a rotary tray 3 connected to the rotary drive component 2, wherein the rotary drive component includes a dividing box, a driving motor is fixed on the side wall of the dividing box, the driving motor is connected to the input end of the dividing box through a synchronous belt, and the rotary tray is connected to the output end of the dividing box, and the rotary drive component drives the rotary tray to rotate to realize the conversion between different stations. A bracket 4 is installed on the bottom plate next to the rotating tray 3. A lifting cylinder 5 is fixed on the mounting bracket 4. A mounting plate 50 is provided at the movable end of the lifting cylinder 5. A laser welding head 6 is provided on the mounting plate 50. The lifting cylinder is used to drive the laser welding head to approach or move away from the welding position. When the rotary drive assembly is working, the lifting cylinder is in a retracted state. At this time, the laser welding head is away from the welding position, thereby avoiding the problem of collision damage to the laser welding head. Four welding molds 7 are evenly distributed on the rotating tray 3. The welding molds 7 are used to carry and position the parts to be welded.

[0031] The utility model designs a multi-station muffler laser welding equipment. First, four welding molds are arranged on a rotating tray. The welding molds are used to support and position the muffler and the external cover. Four stations are formed on the rotating tray by adopting the design of four welding molds. The first station is used to place the external cover in the welding mold, the second station is used to place the muffler shell in the welding mold, the third station is used for laser welding, and the fourth station is used for removing the muffler shell after welding. The four-station design simplifies the action of each station, thereby shortening the time required for each station and improving the production efficiency of the welding equipment; further, the laser welding of the muffler shell and the external cover is realized, the structure is simple and the space occupied by the equipment is small, which overcomes the problems of complex equipment structure and high cost in the spot welding process in the prior art.

[0032] The lower surface of the mounting plate 50 is provided with a plurality of clamping pins 51. After the clamping pins are pressed into place under the mounting plate, the clamping pins abut against the inner wall of the muffler shell to press the muffler shell, thereby ensuring the positioning reliability between the muffler shell and the external cover during welding.

[0033] Further, the welding mold 7 includes a mold body 70, which is fixed on the rotating tray 3. The mold body 70 is provided with a positioning cavity 701 similar to the shape of the muffler, and a circle of positioning steps 702 are provided along the edge of the positioning cavity. A positioning convex block 703 is also provided on the bottom surface of the positioning cavity 701, and the positioning convex block 703 is provided with a positioning boss 704 on the upper surface, and a second positioning step 705 is formed between the positioning boss 704 and the upper surface of the positioning convex block. A plurality of positioning support columns 706 are also provided in the positioning cavity 701 around the positioning convex block 703. The structure of the welding mold is described here. The positioning convex block is used to support and position the external cover, and the positioning concave The cavity and the positioning step are used to support and position the muffler shell. During the assembly process, the external cover is first placed on the positioning protrusion. The external cover is provided with a through hole that cooperates with the positioning protrusion. Then the body of the external cover is supported by the second positioning step. The edge of the external cover is further supported by multiple positioning support columns. Secondly, the muffler shell is placed in the welding mold. The positioning cavity is consistent with the shape of the muffler shell. The edge of the muffler shell is formed with an outward flange, and the flange overlaps the positioning step to achieve positioning and support of the muffler shell. The set welding mold can accurately position and support the external cover and the muffler shell. The positioning accuracy is good, thereby ensuring the accuracy of the two after welding.

[0034] The mold body 70 is provided with connecting grooves 700 on both sides in the length direction, and the connecting grooves 700 are connected with the positioning cavity. The connecting grooves form a clearance space, which will not interfere with the mold body during the placement of the muffler shell. The muffler shell can be smoothly placed in the positioning cavity, and will not collide with the external cover that has been placed during the placement process, which has the effect of facilitating the placement of the muffler shell into the positioning cavity.

[0035] A detection hole 7010 is provided on the bottom surface of the positioning cavity 701, and a photoelectric detection sensor is provided in the detection hole. The photoelectric detection sensor is used to detect whether a muffler shell is placed in the welding mold. If the photoelectric sensor does not detect that the muffler shell has been placed in the welding mold, the lifting cylinder and the laser welding head will not work. The rotating tray will directly rotate to the next workstation under the action of the rotating drive assembly to avoid damage to the equipment caused by starting the laser welding head without a workpiece.

[0036] The four corners of the mold body 70 are provided with connection countersunk holes 707, and countersunk screws pass through the connection countersunk holes to be fixedly connected to the rotating tray, so as to fix the welding mold on the rotating tray.

[0037] The positioning cavity 701 includes a first curved side edge 7010 and a second curved side edge 7011 along the length direction, and also includes a first inclined edge 7012 connected to one end of the first curved side edge 7010 and the second curved side edge 7011, and a first straight edge 7013 connected to the other end of the first curved side edge 7010 and the second curved side edge 7011. The shape of the positioning cavity is explained here, and the first curved side edge and the second curved side edge are used to limit the two sides of the length direction of the silencer shell, and the first straight edge and the first inclined edge are used to distinguish the two ends of the silencer to avoid people from placing it incorrectly during the placement process.

[0038] In summary, the utility model has the following beneficial effects:

[0039] The utility model designs a multi-station muffler laser welding equipment. First, four welding molds are arranged on a rotating tray. The welding molds are used to support and position the muffler and the external cover. Four stations are formed on the rotating tray by adopting the design of four welding molds. The first station is used to place the external cover in the welding mold, the second station is used to place the muffler shell in the welding mold, the third station is used for laser welding, and the fourth station is used for removing the muffler shell after welding. The four-station design simplifies the action of each station, thereby shortening the time required for each station and improving the production efficiency of the welding equipment; further, the laser welding of the muffler shell and the external cover is realized, the structure is simple and the space occupied by the equipment is small, which overcomes the problems of complex equipment structure and high cost in the spot welding process in the prior art.

[0040] Based on the described embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

Claims

1. Multi-station muffler laser welding equipment, comprising a base plate, characterized in that: It also includes a rotating drive component arranged on the base plate, and a rotating tray connected to the rotating drive component. A bracket is installed on the base plate next to the rotating tray. A lifting cylinder is fixed on the mounting bracket. A mounting plate is provided at the movable end of the lifting cylinder. A laser welding head is provided on the mounting plate. Four welding molds are evenly distributed on the rotating tray. The welding molds are used to carry and position the parts to be welded.

2. The multi-station muffler laser welding equipment according to claim 1 is characterized in that: The lower surface of the mounting plate is provided with a plurality of pressing pins.

3. The multi-station muffler laser welding equipment according to claim 1 is characterized in that: The welding mold includes a mold body, which is fixed on a rotating tray. The mold body is provided with a positioning cavity similar to the shape of the muffler, and a circle of positioning steps is provided along the edge of the positioning cavity. A positioning protrusion is also provided on the bottom surface of the positioning cavity. The positioning protrusion is provided with a positioning boss on the upper surface, and a second positioning step is formed between the positioning boss and the upper surface of the positioning protrusion. A number of positioning support columns are also provided in the positioning cavity around the positioning protrusion.

4. The multi-station muffler laser welding equipment according to claim 3 is characterized in that: The mold body is provided with connecting grooves on both sides in the length direction, and the connecting grooves are connected with the positioning cavity.

5. The multi-station muffler laser welding equipment according to claim 3 is characterized in that: A detection hole is arranged on the bottom surface of the positioning cavity, and a photoelectric detection sensor is arranged in the detection hole.

6. The multi-station muffler laser welding equipment according to claim 3 is characterized in that: The four corners of the mold body are provided with connecting countersunk holes.

7. The multi-station muffler laser welding equipment according to any one of claims 3 to 6, characterized in that: The positioning cavity includes a first arcuate side and a second arcuate side along the length direction, a first inclined side connected to one end of the first arcuate side and the second arcuate side, and a first straight side connected to the other end of the first arcuate side and the second arcuate side.

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