Laser marking and positioning device for exhaust pipe of automobile exhaust system

Abstract

The utility model discloses an automobile exhaust system exhaust pipe laser marking positioning device which comprises a bottom plate, a first vertical plate and a second vertical plate are oppositely arranged on the bottom plate, two supporting rods are arranged between the first vertical plate and the second vertical plate, the two ends of any supporting rod are fixedly connected with the first vertical plate and the second vertical plate respectively, and the first vertical plate and the second vertical plate are arranged on the bottom plate. The two supporting rods are arranged in parallel in a spaced mode, an exhaust pipe is placed on the two supporting rods, a limiting assembly is arranged on the first vertical plate, and the limiting assembly is in butt joint with a notch formed in the end of the exhaust pipe. Before the exhaust pipe is marked, the limiting assembly is in butt joint with the notch in the end of the exhaust pipe, it can be guaranteed that the exhaust pipe is positioned at the same position every time, follow-up laser marking positions are consistent, and the production reject ratio is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile exhaust pipe positioning, and more specifically, to a laser marking positioning device for an exhaust pipe of an automobile exhaust system. Background Art

[0002] In the automobile exhaust system industry, with the development of mechanical manufacturing welding technology, various laser markings need to be used in the production process. At present, for the laser marking on the surface of the automobile exhaust pipe, the exhaust pipe is directly placed on the tooling and located below the laser marking machine. The operator then rotates the exhaust pipe to the area to be marked facing the laser marking machine and then performs the marking operation. The operator controls the area to be marked of the exhaust pipe to face the laser marking machine, which is greatly affected by human factors and cannot guarantee the consistency of the positioning each time. Therefore, the marking position of the same product will be inconsistent, which cannot meet customer requirements and result in a high defective rate of the marked products. Therefore, it is necessary to design a laser marking positioning device to ensure consistent product positioning and marking position to reduce the production defective rate. Utility Model Content

[0003] Another object of the utility model is to provide a laser marking positioning device for an exhaust pipe of an automobile exhaust system, which utilizes a limit assembly to dock with a notch at the end of the exhaust pipe before the exhaust pipe marking operation, thereby ensuring that the exhaust pipe is positioned at the same position each time, and the position of subsequent laser marking is consistent, thereby reducing the production defect rate.

[0004] In order to achieve these purposes and other advantages according to the utility model, a laser marking and positioning device for an exhaust pipe of an automobile exhaust system is provided, comprising a base plate, on which a first vertical plate and a second vertical plate are oppositely arranged, two support rods are arranged between the first vertical plate and the second vertical plate, and the two ends of any support rod are respectively fixedly connected to the first vertical plate and the second vertical plate, the two support rods are arranged in parallel and spaced apart, the exhaust pipe is placed on the two support rods, a limiting assembly is provided on the first vertical plate, and the limiting assembly is docked with a notch arranged at the end of the exhaust pipe.

[0005] Preferably, a stopper is provided on any support rod, and the stopper is slidably arranged along the length direction of the support rod.

[0006] Preferably, the limiting assembly includes a limiting block which is a cylindrical structure, and the limiting block is arranged on a side of the first vertical plate close to the second vertical plate, and the outer diameter of the limiting block is adapted to the notch size of the exhaust pipe end.

[0007] Preferably, the limiting assembly also includes a bolt hole and a slot opened on the first vertical plate, the bolt hole and the slot are connected to each other, one end of the bolt is located outside the first vertical plate, and the other end passes through the bolt hole and the slot in sequence and is fixedly connected to the limiting block, and the opening size of the slot is adapted to the size of the limiting block.

[0008] Preferably, one end of the bolt located outside the first vertical plate is connected to an adjustment handle.

[0009] Preferably, a plurality of positioning grooves are provided on the outer periphery of the bottom plate, and any positioning groove passes through the top surface and the bottom surface of the bottom plate.

[0010] The utility model includes at least the following beneficial effects: when using the positioning device of the utility model to position the exhaust pipe, first place the exhaust pipe between two support rods, support the exhaust pipe with the two support rods and perform preliminary positioning on the exhaust pipe, then dock the notch on the exhaust pipe with the limiting assembly, thereby achieving positioning of the exhaust pipe, and then start the laser marking machine to mark the exhaust pipe; since the notches of the same batch of exhaust pipes are opened at the same position during manufacturing, the positions where the exhaust pipes of the same batch are docked with the limiting assembly are the same, which can ensure the consistency of the subsequent marking position of the exhaust pipe, and the product defect rate can be reduced from 3% to 0% by using the positioning device of the utility model to position the exhaust pipe and then perform marking operations.

[0011] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of the positioning device of the utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the exhaust pipe of the utility model;

[0014] Figure 3 It is a structural schematic diagram of the limit assembly of the utility model;

[0015] Description of the Figures in the Specification:

[0016] 1. Exhaust pipe, 101. Notch, 2. Bottom plate, 3. First vertical plate, 4. Second vertical plate, 5. Support rod, 501. Stop block, 6. Limiting assembly, 601. Limiting block, 602. Bolt, 603. Adjusting handle. DETAILED DESCRIPTION

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0018] It should be noted that, in the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0019] like Figure 1-3 As shown, the utility model provides an exhaust pipe laser marking and positioning device for an automobile exhaust system, comprising a base plate 2, on which a first vertical plate 3 and a second vertical plate 4 are oppositely arranged, two support rods 5 are arranged between the first vertical plate 3 and the second vertical plate 4, and the two ends of any support rod 5 are respectively fixedly connected to the first vertical plate 3 and the second vertical plate 4, the two support rods 5 are arranged in parallel and at intervals, and the exhaust pipe 1 is placed on the two support rods 5, and a limiting component 6 is provided on the first vertical plate 3, and the limiting component 6 is connected to the notch 101 arranged at the end of the exhaust pipe 1.

[0020] In the above technical scheme, the positioning device of the utility model is placed on the tooling and is located below the laser marking machine; in order to ensure the consistency of the positioning position of the exhaust pipe 1 each time, a notch 101 is opened at one end of the exhaust pipe 1 during the production of the exhaust pipe 1. When the positioning device is used to position the exhaust pipe 1, the exhaust pipe 1 is first placed between the two support rods 5, and the exhaust pipe 1 is initially positioned while being supported by the two support rods 5. Subsequently, the notch 101 on the exhaust pipe 1 is docked with the limit assembly 6, thereby realizing the positioning of the exhaust pipe 1, and then the laser marking machine is started to mark the exhaust pipe 1. Marking operation; since the same batch of exhaust pipes 1 have the same notch 101 when they are manufactured, the same batch of exhaust pipes 1 are connected to the limit assembly 6 at the same position, which can ensure the consistency of the subsequent marking position of the exhaust pipe 1. The position of the notch 101 opened in the exhaust pipe 1 is based on the area to be marked facing the laser marking machine after the exhaust pipe 1 is positioned. After the exhaust pipe 1 is positioned, the positioning device of the utility model is used to position the exhaust pipe 1 and then perform the marking operation. The product defective rate can be reduced from 3% to 0%. When the exhaust pipe 1 is produced later, the position of the notch 101 opened needs to be closed again.

[0021] In another technical solution, a stopper 501 is provided on any support rod 5 , and the stopper 501 is slidably arranged along the length direction of the support rod 5 .

[0022] In the present technical solution, after the limiting component 6 is docked with the notch 101 at one end of the exhaust pipe 1, the sliding block 501 is until the block 501 abuts against the other end of the exhaust pipe 1, and the limiting component 6 and the block 501 cooperate with each other to limit the two ends of the exhaust pipe 1, thereby avoiding the exhaust pipe 1 from shaking due to external force and causing deviation in the marking position; in order to facilitate material collection and reduce the difficulty of making the positioning device, the block 501 is a circular ring, which is sleeved on the support rod 5, and a slide rail is provided on the side wall of the support rod 5 along its length direction, and a slider is provided on the inner wall of the block 501, and the block 501 is slidably arranged on the slide rail through the slider.

[0023] In another technical solution, the limit assembly 6 includes a limit block 601 which is a cylindrical structure. The limit block 601 is arranged on the side of the first vertical plate 3 close to the second vertical plate 4. The outer diameter of the limit block 601 is adapted to the size of the notch 101 at the end of the exhaust pipe 1.

[0024] In the present technical solution, after placing the exhaust pipe 1 on the support rod 5, the exhaust pipe 1 is moved until the notch 101 on the exhaust pipe 1 fits with the outer periphery of the limit block 601, so that the exhaust pipe 1 can be positioned. The device has a simple structure, and it is more convenient to take and place products during marking, which can improve production efficiency.

[0025] In another technical solution, the limiting assembly 6 also includes a bolt hole and a slot opened on the first vertical plate 3, the bolt hole and the slot are connected to each other, one end of the bolt 602 is located outside the first vertical plate 3, and the other end passes through the bolt hole and the slot in sequence and is fixedly connected to the limiting block 601, and the opening size of the slot is adapted to the size of the limiting block 601.

[0026] In the present technical solution, the notch 101 provided on the exhaust pipe 1 is only for assisting positioning and in order to avoid damaging the exhaust pipe 1, the length dimension of the notch 101 (along the length direction of the exhaust pipe 1) is small, and the limiting block 601 is a cylindrical structure, and its diameter is larger than the length dimension of the notch 101 of the exhaust pipe 1. When the outer wall of the limiting block 601 fits with the notch 101 on the exhaust pipe 1, there is a distance between the exhaust pipe 1 and the first vertical plate 3, which is not conducive to the stability and horizontality of the exhaust pipe 1 when placed. Therefore, bolt holes and slots that are interconnected are provided on the first vertical plate 3, and the size of the slots and the limiting block 601 is symmetrical. The sizes are adapted to each other, that is, the limit block 601 can be accommodated in the slot, and the bolt 602 is connected with the limit block 601 after passing through the bolt hole and the slot. Before the exhaust pipe 1 is positioned, the limit block 601 is located in the slot. When positioning, the exhaust pipe 1 is first placed on the support rod 5 to fit with the first vertical plate 3, and the notch 101 is adjusted to face the slot. Then, the bolt 602 is screwed to drive the limit block 601 to extend out of the slot and fit with the notch 101, and then the stop block 501 is adjusted to abut against the exhaust pipe 1. The first vertical plate 3, the limit block 601, and the stop block 501 cooperate with each other to realize the positioning of the exhaust pipe 1 while ensuring the stability and horizontality of the exhaust pipe 1 when it is placed.

[0027] In another technical solution, an adjustment handle 603 is connected to one end of the bolt 602 located outside the first vertical plate 3 .

[0028] In the present technical solution, the adjustment handle 603 facilitates the operator to screw the bolt 602 to drive the limit block 601 to fit with the notch 101 on the exhaust pipe 1 .

[0029] In another technical solution, a plurality of positioning grooves are provided on the outer periphery of the bottom plate 2 , and any positioning groove passes through the top surface and the bottom surface of the bottom plate 2 .

[0030] In the present technical solution, a positioning groove is provided on the outer periphery of the base plate 2, and bolts can be passed through the positioning groove to connect with the bolt holes on the tooling so that the positioning device can be installed on the tooling to ensure the stability of the position of the positioning device and avoid displacement of the positioning device when taking and placing the exhaust pipe 1, thereby affecting the subsequent marking accuracy.

[0031] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation modes. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A laser marking and positioning device for exhaust pipes of automobile exhaust systems, characterized in that: It includes a base plate, on which a first vertical plate and a second vertical plate are oppositely arranged, two support rods are arranged between the first vertical plate and the second vertical plate, two ends of each support rod are respectively fixedly connected to the first vertical plate and the second vertical plate, the two support rods are arranged in parallel and spaced apart, the exhaust pipe is placed on the two support rods, a limiting assembly is provided on the first vertical plate, and the limiting assembly is docked with a notch arranged at the end of the exhaust pipe.

2. The laser marking and positioning device for the exhaust pipe of the automobile exhaust system according to claim 1, characterized in that: A stopper is arranged on any supporting rod, and the stopper is slidably arranged along the length direction of the supporting rod.

3. The laser marking and positioning device for exhaust pipe of automobile exhaust system as claimed in claim 1, characterized in that: The limiting assembly includes a limiting block which is a cylindrical structure. The limiting block is arranged on a side of the first vertical plate close to the second vertical plate. The outer diameter of the limiting block is matched with the notch size of the exhaust pipe end.

4. The laser marking and positioning device for the exhaust pipe of the automobile exhaust system as claimed in claim 3, characterized in that: The limiting assembly also includes a bolt hole and a slot opened on the first vertical plate, the bolt hole and the slot are connected to each other, one end of the bolt is located outside the first vertical plate, and the other end passes through the bolt hole and the slot in sequence and is fixedly connected to the limiting block, and the opening size of the slot is adapted to the size of the limiting block.

5. The laser marking and positioning device for exhaust pipe of automobile exhaust system as claimed in claim 4, characterized in that: One end of the bolt located outside the first vertical plate is connected with an adjustment handle.

6. The laser marking and positioning device for exhaust pipe of automobile exhaust system as claimed in claim 1, characterized in that: A plurality of positioning grooves are formed on the outer periphery of the bottom plate, and any positioning groove passes through the top surface and the bottom surface of the bottom plate.

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