Deviation rectifying mechanism and deviation rectifying method applied to laser marking machine for automobile component

By introducing a correction mechanism into the laser marking machine, and using correction and drive components to achieve precise workpiece positioning, the problems of inaccurate positioning and low efficiency of traditional laser marking machines are solved, thus improving marking efficiency and accuracy.

CN117862709BActive Publication Date: 2026-06-05TIANJIN TAIZHENG MACHINERY

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
TIANJIN TAIZHENG MACHINERY
Filing Date
2024-02-21
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Traditional laser marking machines suffer from inaccurate positioning, low efficiency, and misalignment issues in automotive workpiece production. In particular, when using conveyor belts, vibrations cause laser marking to shift, making it impossible to efficiently and accurately position multiple workpieces.

Method used

The system employs a correction mechanism, which includes a conveying mechanism, a correction component, a drive component, and a positioning component. It uses friction to drive the workpieces to be arranged at equal intervals, and uses correction rods and correction wheels to clamp the workpieces on both sides to ensure that the workpieces do not deviate during the conveying process. It works in conjunction with a laser marking mechanism to achieve precise positioning.

Benefits of technology

It improves the efficiency of workpiece marking, reduces the number of manual positioning operations, lowers labor intensity, enhances the accuracy of marking positions, and increases the product qualification rate.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN117862709B_ABST
    Figure CN117862709B_ABST
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Abstract

The application belongs to the technical field of laser coding, and particularly relates to a deviation rectifying mechanism and method applied to a laser coding machine for automobile components, which comprises a conveying mechanism, a deviation rectifying assembly for positioning workpieces is slidably connected to the conveying mechanism, a driving assembly for driving the deviation rectifying assembly to slide is slidably connected to the conveying mechanism, and a positioning assembly is installed on the conveying mechanism. The conveying mechanism comprises a conveying frame and a conveying belt, the conveying belt for conveying workpieces is wound on the conveying frame, the deviation rectifying assembly comprises a deviation rectifying rod, the deviation rectifying rod is symmetrically slidably connected to the conveying frame, and a deviation rectifying wheel is rotatably connected to one end of the deviation rectifying rod. The workpieces are always moved to the tail end, and then laser coding can be sequentially performed on multiple automobile components of the same specification, manual multiple clamping and positioning are no longer needed, work efficiency is improved, labor intensity is reduced, the workpieces can be prevented from deviating during coding through the deviation rectifying assembly, coding position accuracy can be improved, and product qualification rate is improved.
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Description

Technical Field

[0001] This invention belongs to the field of laser marking technology, specifically relating to a correction mechanism and correction method for laser marking machines used on automotive components. Background Technology

[0002] In the automotive parts manufacturing process, laser marking machines are needed to engrave text such as model numbers on the workpiece surface. Traditional laser marking machines consist of a worktable and a laser system. During engraving, the parts are mounted on positioning fixtures, and the laser engraves fixed text content and positions on the object's surface. The processing is relatively simple. If multiple workpieces need to be engraved, the components must be clamped and positioned sequentially using fixtures. This repeated positioning of the parts slows down the progress and reduces work efficiency. If a conveyor belt is used for coding, the automotive components will shift due to the vibration of the conveyor belt, causing laser marking to be off-target and making accurate positioning impossible. Summary of the Invention

[0003] In order to solve the above-mentioned technical problems, the present invention proposes a correction mechanism and correction method for use in laser marking machines for automotive components.

[0004] The specific technical solution of the present invention is as follows: a correction mechanism and correction method applied to a laser marking machine for automotive components, including a conveying mechanism, a correction component for positioning the workpiece is slidably connected on the conveying mechanism, a driving component for driving the correction component to slide is slidably connected on the conveying mechanism, and a positioning component is installed on the conveying mechanism.

[0005] Furthermore, the conveying mechanism includes a conveyor frame and a conveyor belt. The conveyor frame is wound with a conveyor belt for conveying workpieces. The correction component includes correction rods. The correction rods are symmetrically slidably connected to the conveyor frame, and a correction wheel is rotatably connected to one end of the correction rod.

[0006] Furthermore, the driving assembly includes sliding seats, which are symmetrically slidably connected to the conveyor frame. The sliding seats and the conveyor frame are connected by springs. One of the sliding seats has a first groove with the same shape as one side of the workpiece, and the other sliding seat has a second groove with the same shape as the other side of the workpiece. A roller is rotatably connected to the other end of the correction rod. The roller is slidably connected in the first groove and the second groove, respectively. A moving block is slidably connected to the sliding seat. The moving block and the sliding seat are connected by springs. A push block is installed on the conveyor belt for cooperating with the moving block to drive the sliding seat to move. A reset assembly for separating the push block from the moving block is installed on the sliding seat.

[0007] Furthermore, the reset assembly includes a support frame, on which the conveyor is mounted, and on which an inclined block for pressing the moving block is mounted.

[0008] Furthermore, both the tilting block and the moving block are provided with inclined surfaces.

[0009] Furthermore, the positioning component includes a rotating rod, which is rotatably connected to the conveyor frame. A torsion spring is installed between the rotating rod and the conveyor frame. A stop block is installed on the conveyor belt, and a baffle that cooperates with the stop block is installed on the rotating rod.

[0010] Furthermore, the conveyor frame is equipped with a support plate for supporting the conveyor belt.

[0011] A correction method for a correction mechanism applied to a laser marking machine for automotive components involves a conveyor belt that drives a pusher block, a stop block, and a workpiece to move together toward the tail end. The workpiece is blocked by a baffle, causing it to contact the stop block and move together toward the tail end. The pusher block drives a sliding seat to move toward the tail end via a moving block. The sliding seat drives a correction rod to move toward the center via a first groove and a second groove, causing the correction wheels to move laterally along both sides of the workpiece. This allows the two correction wheels to position the sides of the irregular workpiece, preventing the workpiece from shifting to the left or right.

[0012] Beneficial effects:

[0013] This application features a workpiece positioning and correction component slidably connected to a conveyor mechanism, along with a drive component slidably connected to the conveyor mechanism to drive the correction component to slide. A positioning component is mounted on the conveyor mechanism. An operator places the workpiece on the conveyor mechanism, which then moves the workpiece towards its tail end via friction. The workpiece contacts the positioning component, aligning it evenly on the conveyor mechanism. The conveyor mechanism then drives the correction component towards the center via the drive component, clamping the left and right sides of the deflected workpiece and correcting its deviation. Finally, a gantry crane is used above the clamped workpiece. Equipped with a laser marking mechanism, the conveyor continues to transport the workpiece towards the tail end. The correction component slides laterally along a pre-set path, ensuring it remains in contact with both sides of the workpiece. This fixes the workpiece in place, allowing it to move towards the tail end. This enables laser marking of multiple automotive components of the same specifications sequentially, eliminating the need for manual clamping and positioning. This improves work efficiency, reduces labor intensity, and prevents workpiece misalignment during marking, thus enhancing marking accuracy and increasing product qualification rate. Attached image description:

[0014] Figure 1 This is a schematic diagram of the structure of the present invention;

[0015] Figure 2 This is a schematic diagram of the drive component structure of the present invention;

[0016] Figure 3 This is a schematic diagram of the reset component structure of the present invention;

[0017] Figure 4 This is a schematic diagram of the sliding seat and the first groove structure of the present invention;

[0018] Figure 5 This is a schematic diagram of the corrective rod and corrective wheel structure of the present invention;

[0019] Figure 6 This is a schematic diagram of the positioning component structure of the present invention.

[0020] Explanation of markings in the diagram:

[0021] Conveying mechanism 1, conveying frame 11, conveyor belt 12, lifting plate 13, workpiece 2, correction assembly 3, correction rod 31, correction wheel 32, drive assembly 4, sliding seat 41, first groove 42, second groove 43, roller 44, moving block 45, push block 46, reset assembly 47, support frame 471, tilting block 472, positioning assembly 5, rotating rod 51, stop block 52, baffle 53. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] In the description of this invention, it should be understood that the terms "upper," "middle," "outer," "inner," etc., which indicate orientation or positional relationship, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this invention.

[0024] Example 1: Combination Figures 1 to 2This application describes a correction mechanism and method for a laser marking machine for automotive components. The mechanism includes a conveying mechanism 1, on which a correction component 3 for positioning a workpiece 2 is slidably connected. A driving component 4 for driving the correction component 3 to slide is also slidably connected to the conveying mechanism 1. A positioning component 5 is mounted on the conveying mechanism 1. The application describes a mechanism where the correction component 3 for positioning the workpiece 2 is slidably connected to the conveying mechanism 1, the driving component 4 for driving the correction component 3 to slide, and the positioning component 5 is mounted on the conveying mechanism 1. When an operator places the workpiece 2 on the conveying mechanism 1, the conveying mechanism 1 moves the workpiece 2 towards its tail end through friction. The workpiece 2 then contacts the positioning component 5, arranging it equidistantly on the conveying mechanism 1. The conveying mechanism 1 then drives the correction component 3 towards the center via the driving component 4, causing the correction component 3 to clamp the left and right sides of the deflected workpiece 2, thus correcting its deviation. The clamped workpiece 2... A laser marking mechanism is installed on the gantry frame above. Then, the conveyor mechanism 1 continues to transport the workpiece 2 to the tail end. The correction component 3 slides laterally along the set path, so that the correction component 3 is always in contact with both sides of the workpiece 2. The correction component 3 fixes the left and right sides of the workpiece 2, so that the workpiece 2 continues to move to the tail end. In this way, multiple automotive parts of the same specification can be laser marked in sequence, eliminating the need for manual clamping and positioning multiple times, thereby improving work efficiency and reducing labor intensity. The correction component 3 can also prevent the workpiece 2 from shifting during marking, thereby improving the marking position accuracy and increasing the product qualification rate.

[0025] Example 2: Based on Example 1, combined with Figure 3 and Figure 5 The conveying mechanism 1 includes a conveyor frame 11 and a conveyor belt 12. The conveyor belt 12 for conveying the workpiece 2 is wound on the conveyor frame 11. The correction assembly 3 includes a correction rod 31, which is symmetrically slidably connected to the conveyor frame 11. A correction wheel 32 is rotatably connected to one end of the correction rod 31. The conveyor belt 12 drives the correction rod 31 to move laterally left and right via a drive assembly 4. The correction wheel 32 reduces wear on the workpiece 2, improves the product qualification rate of the workpiece 2, and can also rotate along the side of the workpiece 2, making the movement of the workpiece 2 smoother towards the tail end, thereby extending its service life and improving the accuracy of marking.

[0026] Example 3: Based on Example 2, combined with Figure 3 and Figure 4As described above, the drive assembly 4 includes a sliding seat 41, which is symmetrically slidably connected to the conveyor frame 11. The sliding seats 41 and the conveyor frame 11 are connected by springs. One sliding seat 41 has a first groove 42 with the same shape as one side of the workpiece 2, and the other sliding seat 41 has a second groove 43 with the same shape as the other side of the workpiece 2. A roller 44 is rotatably connected to the other end of the correction rod 31. The roller 44 is slidably connected in the first groove 42 and the second groove 43 respectively. A moving block 45 is slidably connected to the sliding seat 41, and the moving block 45 is connected to the sliding seat 41 by a spring. A push block 46 is installed on the conveyor belt 12 to cooperate with the moving block 45 to drive the sliding seat 41 to move. A reset assembly 47 is installed on the sliding seat 41 to separate the push block 46 from the moving block 45. This application features symmetrically slidably connected sliding seats 41 on the conveyor frame 11, with the sliding seats 41 connected to the conveyor frame 11 by springs. One sliding seat 41 has a first groove 42 with the same shape as one side of the workpiece 2, and the other sliding seat 41 has a second groove 43 with the same shape as the other side of the workpiece 2. A roller 44 is rotatably connected to the other end of the correction rod 31, and the roller 44 is slidably connected in the first groove 42 and the second groove 43 respectively. A moving block 45 is slidably connected to the sliding seat 41, and the moving block 45 is connected to the sliding seat 41 by springs. A push block 46 is installed on the conveyor belt 12 to drive the sliding seat 41 to move in cooperation with the moving block 45. A reset assembly 47 is installed on the sliding seat 41 to separate the push block 46 from the moving block 45. The push block 46 drives the sliding seat 41 to move towards the tail end by cooperating with the moving block 45. 1. Through the first groove 42 and the second groove 43, the roller 44 drives the correction rod 31 to move laterally left and right. A slope inclined towards the center is first set at the tail end of the first groove 42 and the second groove 43, so that the correction rod 31 slowly moves towards the center and clamps the workpiece 2 that has a slight deviation. Since the first groove 42 and the second groove 43 are the same shape as the two sides of the workpiece 2, the correction roller 32 that clamps the workpiece 2 can always be in contact with the two sides of the workpiece 2 during marking. The first groove 42 and the second groove 43 can be set according to the different shapes of the workpiece 2, so that the irregular workpiece 2 can be positioned and marked, making the marking position of the irregular workpiece 2 more accurate. By setting the first groove 42 and the second groove 43 that conform to the sides of the workpiece 2, laser marking of workpieces 2 of different specifications can be performed, thereby expanding the scope of application and improving the marking efficiency.

[0027] Example 4: Based on Example 3, combined with Figure 4As can be described, the reset assembly 47 includes a support frame 471, which is mounted on the conveyor frame 11, and an inclined block 472 for pressing the moving block 45 is mounted on the support frame 471. This application features a support frame 471 mounted on the conveyor frame 11, with an inclined block 472 mounted on the support frame 471 for pressing the moving block 45. When the push block 46 drives the moving block 45 to contact the inclined block 472, laser marking is completed on the workpiece 2. Afterward, the push block 46 continues to drive the moving block 45 to the tail end, and the inclined block 472 presses the moving block 45 downward. The moving block 45 moves downward and separates from the push block 46. Under the action of the spring, the sliding seat 41 returns to the starting position, and the rollers 44 return to the starting position along their respective first grooves 42 and second grooves 43. This allows the sliding seat 41 to automatically return to the starting position. Since the correction rod 31 can only move laterally left and right, the marked workpiece 2 will no longer contact the correction wheel 32. Therefore, no additional power source is needed to make the sliding seat 41 reciprocate, thereby reducing manufacturing costs and reducing labor intensity.

[0028] Example 5: Based on Example 4, combined with Figure 4 As can be explained, both the inclined block 472 and the moving block 45 are provided with inclined surfaces. By providing inclined surfaces on both the inclined block 472 and the moving block 45, this application enables the inclined block 472 to slide more smoothly when pressing the moving block 45, reducing wear between them, thereby extending their service life and reducing maintenance costs.

[0029] Example 6: Based on Example 5, combined with Figure 6 As explained, the positioning component 5 includes a rotating rod 51, which is rotatably connected to the conveyor frame 11. A torsion spring is installed between the rotating rod 51 and the conveyor frame 11. A stop block 52 is installed on the conveyor belt 12, and a baffle 53 that cooperates with the stop block 52 is installed on the rotating rod 51. This application features a rotating rod 51 rotatably connected to a conveyor frame 11, with a torsion spring installed between the rotating rod 51 and the conveyor frame 11. A stop block 52 is installed on the conveyor belt 12, and a baffle 53 cooperating with the stop block 52 is installed on the rotating rod 51. After the workpiece 2 is placed on the conveyor belt 12, the baffle 53 blocks the workpiece 2, causing it to slide on the conveyor belt 12. Then, when the stop block 52 on the conveyor belt 12 contacts the beginning of the workpiece 2, the stop block 52 pushes the workpiece 2 towards the end, allowing the workpiece 2 to overcome the torque generated by the torsion spring. This causes the baffle 53 to drive the rotating rod 51 to rotate, and the workpiece 2 passes through the baffle 53, thus enabling the workpiece 2 to be automatically and equidistantly arranged on the conveyor belt 12. This improves the accuracy of marking the workpiece 2's position, reduces the difficulty for the unloading personnel, and increases production efficiency.

[0030] Example 7: Based on Example 6, combined with Figure 6As explained, the conveyor frame 11 is equipped with a support plate 13 for supporting the conveyor belt 12. This application, by installing the support plate 13 on the conveyor frame 11 to support the lower end of the conveyor belt 12, prevents the conveyor belt 12 from bending due to the weight of the workpiece 2, further improves the accuracy of the marking position on the workpiece 2, extends the service life of the conveyor belt 12, and reduces maintenance costs.

[0031] Example 8: Based on Example 7, combined with Figures 1 to 6 To explain, the conveyor belt 12 drives the pusher block 46, the stop block 52, and the workpiece 2 to move towards the tail end together. The baffle 53 blocks the workpiece 2, causing it to contact the stop block 52 before moving towards the tail end together. The pusher block 46 drives the sliding seat 41 to move towards the tail end via the moving block 45. The sliding seat 41 drives the correction rod 31 to move towards the center via the first groove 42 and the second groove 43, causing the two correction wheels 32 to move towards the center synchronously, correcting the deflection of the workpiece 2. Then, the workpiece 2 is moved towards the center via the first groove 42 and the second groove 43. The tail end moves, causing the correction wheels 32 to move laterally along both sides of the workpiece 2. This allows the two correction wheels 32 to position the sides of the irregular workpiece 2, preventing the workpiece 2 from shifting left or right due to vibration. Then, the conveyor belt 12 continues to move the workpiece 2 towards the tail end, allowing the workpiece 2 to be laser-marked while moving towards the tail end. Since the correction wheels 32 always clamp both sides of the workpiece 2, they can prevent the workpiece 2 from shifting due to vibration during laser marking, thereby improving the accuracy of the marking position of the workpiece 2 and increasing production efficiency.

[0032] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0033] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A correction mechanism for use in laser marking machines for automotive components, characterized in that, The conveying mechanism (1) includes a correction component (3) for positioning the workpiece (2) which is slidably connected to the conveying mechanism (1), a driving component (4) for driving the correction component (3) to slide which is slidably connected to the conveying mechanism (1), and a positioning component (5) installed on the conveying mechanism (1). The conveying mechanism (1) includes a conveying frame (11) and a conveyor belt (12). The conveying frame (11) is wound with a conveyor belt (12) for conveying the workpiece (2). The correction assembly (3) includes a correction rod (31). The correction rod (31) is symmetrically slidably connected to the conveying frame (11). A correction wheel (32) is rotatably connected to one end of the correction rod (31). The drive assembly (4) includes a sliding seat (41). The sliding seats (41) are symmetrically slidably connected to the conveyor frame (11). The sliding seats (41) and the conveyor frame (11) are connected by a spring. One of the sliding seats (41) has a first groove (42) with the same shape as one side of the workpiece (2). The other sliding seat (41) has a second groove (43) with the same shape as the other side of the workpiece (2). A roller (44) is rotatably connected to the other end of the correction rod (31). The roller (44) is slidably connected in the first groove (42) and the second groove (43) respectively. A moving block (45) is slidably connected to the sliding seat (41). The moving block (45) and the sliding seat (41) are connected by a spring. A push block (46) is installed on the conveyor belt (12) for cooperating with the moving block (45) to drive the sliding seat (41) to move. A reset assembly (47) is installed on the sliding seat (41) for separating the push block (46) from the moving block (45).

2. The correction mechanism for laser marking machines for automotive components according to claim 1, characterized in that, The reset assembly (47) includes a support frame (471), which is mounted on the conveyor frame (11) and has an inclined block (472) mounted on the support frame (471) for pressing the moving block (45).

3. The correction mechanism for laser marking machines for automotive components according to claim 2, characterized in that, Both the inclined block (472) and the moving block (45) are provided with inclined surfaces.

4. The correction mechanism for laser marking machines for automotive components according to claim 3, characterized in that, The positioning component (5) includes a rotating rod (51), the rotating rod (51) is rotatably connected to the conveyor frame (11), a torsion spring is installed between the rotating rod (51) and the conveyor frame (11), a stop block (52) is installed on the conveyor belt (12), and a baffle (53) that cooperates with the stop block (52) is installed on the rotating rod (51).

5. The correction mechanism for laser marking machines for automotive components according to claim 4, characterized in that, The conveyor frame (11) is equipped with a support plate (13) for supporting the conveyor belt (12).

6. The correction method for the correction mechanism applied to a laser marking machine for automotive components according to claim 5, characterized in that, The conveyor belt (12) drives the push block (46), the stop block (52) and the workpiece (2) to move together to the tail end. The workpiece (2) is blocked by the baffle (53) so that the workpiece (2) contacts the stop block (52) and moves together to the tail end. The push block (46) drives the sliding seat (41) to move to the tail end through the moving block (45). The sliding seat (41) drives the correction rod (31) to move towards the center through the first groove (42) and the second groove (43), so that the correction wheel (32) moves laterally along both sides of the workpiece (2) so that the two correction wheels (32) position the side of the non-standard workpiece (2) and prevent the workpiece (2) from shifting to the left or right.