A laser marking machine

Abstract

This utility model employs a laser marking machine, including a worktable, a marking control screen, a laser unit, a marking rotating table, and a marking rotation control screen. The laser unit includes a laser head, and the marking rotation control screen includes a control unit. The marking rotating table includes several marking positions. The marking control screen outputs marking commands, and the control unit controls the marking rotating table to rotate automatically, so that each marking position faces the laser head and performs a marking action one by one. This allows the laser marking machine to perform continuous laser marking after the marking rotating table and marking rotation control screen are involved, and can reliably perform one-by-one marking operations on each marking position on the marking rotating table, thereby solving the problems of high marking efficiency and high manual labor intensity in existing marking machines.

Description

Technical Field

[0001] This utility model relates to the field of marking equipment technology, and in particular to a laser marking machine. Background Technology

[0002] A laser marking machine is a device that uses a high-energy-density laser beam to permanently mark (such as text, patterns, QR codes) on the surface of materials (metal, plastic, glass, etc.) through burning, vaporization, or discoloration. Traditional laser marking machines typically rely on a foot-operated, single-action drive. During the loading stage, the worktable generally only supports the loading and marking of a single product at a time. Specifically, the working process involves manually loading any number of products to be marked (such as twist drills, king drills, tile hole openers, and other drill bits of various sizes), then marking is initiated by stepping on a switch. The process is repeated manually, unloading the product, and loading the next product. After repeating these steps, batch marking of the same product can be achieved.

[0003] Although the laser marking machines mentioned above can support marking operations in most situations on the market, the marking efficiency is affected because each marking operation can only involve a single product. In addition, after each marking operation, there is still the need for manual loading and unloading and repeated foot operation, which leads to a high workload during the operation. Summary of the Invention

[0004] In view of the above shortcomings, this utility model provides a laser marking machine that can achieve efficient marking and greatly reduce the workload of operators.

[0005] To achieve the above objectives, this utility model employs a laser marking machine, including a worktable, a marking control screen limited to the worktable, and laser units distributed on the worktable. The laser unit includes a laser head. The laser marking machine also includes a marking rotation table and a marking rotation control screen limited to the worktable. The marking rotation control screen includes a control unit. The marking rotation table includes several marking positions. The marking control screen outputs marking commands, and the control unit controls the marking rotation table to perform automatic rotation, so that each marking position faces the laser head and performs a marking action one by one.

[0006] The present invention is further configured such that the marking rotating table is arranged in several equal parts, and each of the equal parts includes a working surface. Several markings are distributed on the various working surfaces. The working surfaces on the marking rotating table are rotated one by one to a position directly opposite the laser head by the rotation control of the control unit. The marking control screen outputs marking commands, which enable each marking position on each working surface to perform a marking action one by one.

[0007] The present invention is further configured such that a positioning origin is set below the marking rotary table and between any two working surfaces. The positioning origin rotates synchronously with the marking rotary table. A sensing component is set on the rotation trajectory line of the worktable relative to the positioning origin. During the initial rotation stage of the marking rotary table, the sensing component is used to sense the position of the positioning origin and calibrate the starting position of the marking.

[0008] The present invention is further configured such that the laser unit also includes a base frame limited on the worktable, a sliding rail limited on the base frame, a support sliding frame limited on the sliding rail and moving away from or towards the marking rotary table, and a support member limited on the support sliding frame, wherein the limiting position of the support member on the support sliding frame is adjustable. The laser head is positioned on the support member, and the laser head moves adjustablely on the support sliding frame along with the support member, forming a direct adjustment between the center position of the laser head and the center position of the marking rotary table. The laser head and the support member slide along the sliding frame on the sliding rail, forming a distance adjustment between the laser head and the marking rotary table, and constituting a laser marking machine adapted to the marking operation of products of different specifications.

[0009] The present invention is further configured such that the marking rotary table is divided into six equal parts, the number of working surfaces is six working surfaces adapted to the six-part marking rotary table, and the rotation angle control command output by the control unit is a 60-degree rotation command adapted to the six-part marking rotary table.

[0010] The present invention is further configured such that the control unit within the marking rotation control panel controls the continuous rotation of the marking rotation table and the control of the turntable switching interval between adjacent working surfaces on the marking rotation table.

[0011] The present invention is further configured such that the marking rotary table includes a geared motor limited to the worktable, a drive motor limited to the worktable and distributed on one side of the geared motor, and a flange connected to the geared output shaft of the geared motor. The drive output shaft of the drive motor is connected to the geared input shaft of the geared motor, thereby converting the high-speed small force of the drive motor into the low-speed large force of the geared motor, and thus accurately transmitting the driving force of the drive motor to the flange.

[0012] The present invention is further configured such that the six working surfaces on the marking rotating table are distributed on the flange, and each marking position is distributed near the edge of the flange.

[0013] The present invention is further configured such that the number of marking positions on each working surface is the same.

[0014] The present invention is further configured such that the sensing component is a photoelectric switch or a proximity switch.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: In addition to the worktable used for laser marking, the marking control screen that controls the size of the marked pattern or text, and the laser unit required for laser marking, this utility model also includes a marking rotary table and a marking rotation control screen. The marking rotation control screen contains a control unit, which can be used to control the continuous rotation of the marking rotary table. The marking rotary table has several marking positions, so that while the marking rotary table rotates continuously via the control unit, each marking position on the marking rotary table can be rotated to the position of the laser head on the laser unit for individual marking. Therefore, the laser marking machine of this utility model, with its marking rotary table and marking rotation control screen, can achieve continuous laser marking and can control the marking position on the marking rotary table. Each marking position can reliably perform individual marking operations, thus solving the problems of high marking efficiency and high manual labor intensity in existing systems. Furthermore, to ensure continuous and reliable laser marking, when laser marking is being performed on the side of the marking rotating table facing the laser head, products already marked on other surfaces can be directly unloaded / retrieved and simultaneously reloaded. This completes the loading and unloading of products for marking, ensuring the continuity of the laser marking operation. If the operator encounters a speed problem during loading and unloading, or feels the rotation speed of the marking rotating table is too slow, they can adjust it to a suitable speed using the marking rotation control panel. This ensures the reliability of the laser marking machine described in this invention. Attached Figure Description

[0016] Figure 1 This is a first-view perspective three-dimensional schematic diagram of the laser marking machine according to an embodiment of this utility model; Figure 2 yes Figure 1 Enlarged schematic diagram of part A; Figure 3 yes Figure 1 Enlarged schematic diagram of part B; Figure 4 This is a second-view perspective three-dimensional schematic diagram of the laser marking machine according to an embodiment of this utility model; Figure 5 yes Figure 4 Enlarged schematic diagram of part C; Figure 6 yes Figure 4 Enlarged schematic diagram of part D. Detailed Implementation

[0017] like Figure 1-6 As shown, a specific embodiment of this utility model is a laser marking machine, including a worktable 2, a marking control screen 1 limited to the worktable 2, and laser units 4 distributed on the worktable 2. The laser unit 4 includes a laser head 41. The laser marking machine also includes a marking rotating table 3 limited to the worktable 2 and a marking rotating control screen 5. The marking rotating control screen 5 includes a control unit. The marking rotating table 3 includes a plurality of marking positions 312. The marking control screen 1 outputs marking commands, and the control unit controls the marking rotating table 3 to perform automatic rotation, so that each marking position 312 is oriented towards the position directly opposite the laser head 41 and performs marking actions one by one.

[0018] In addition to the worktable 2 used for laser marking operations, the marking control screen 1 for controlling the size of the marked patterns or text, and the laser unit 4 required for laser marking, the invention also includes a marking rotary table 3 and a marking rotary control screen 5. The marking rotary control screen 5 contains a control unit, which can control the continuous rotation of the marking rotary table 3. The marking rotary table 3 has several marking positions 312, allowing each marking position 312 to rotate to the position of the laser head 41 on the laser unit 4 for marking one by one while the marking rotary table 3 rotates continuously via the control unit. This enables the laser marking machine of this invention, with the inclusion of the marking rotary table 3 and the marking rotary control screen 5, to perform continuous laser marking and to mark each marking position on the marking rotary table 3. All marking positions 312 can reliably perform one-by-one marking operations, thus solving the problems of high marking efficiency and high manual labor intensity in existing marking systems. In addition, to ensure the continuous and reliable operation of laser marking, when laser marking is being performed on the side of the marking turntable 3 facing the laser head 41, if there are already marked products on other surfaces, they can be directly unloaded / retrieved and simultaneously reloaded. This completes the loading and unloading of marked products and ensures the continuity of the laser marking operation. If the operator encounters a speed problem or feels that the rotation speed of the marking turntable 3 is too slow during the loading and unloading process, they can adjust it to a matching speed through the control panel 5. This ensures the reliability of the laser marking machine involved in this invention.

[0019] like Figure 1-6 As shown, the marking rotary table 3 is arranged in several equal parts, and each of the equal parts includes a working surface 311. Several marking positions 312 are distributed on each working surface 311. Each working surface 311 on the marking rotary table 3 is rotated one by one to a position directly opposite the laser head 41 by the rotation control of the control unit. The marking command is output through the marking control screen 1, which constitutes a design for each marking position 312 on each working surface 311 to perform a marking action one by one. This design can ensure the reliable marking. After dividing the marking rotary table 3 into several equal parts, each of the equal parts involves a working surface 311, and each working surface 311 involves a marking position 312. This allows the marking rotary table 3 to rotate in equal divisions during laser marking operations, controlled by the control unit. For example, if it is divided into six equal divisions, the number of working surfaces 311 involved is six. Since the marking rotary table 3 is a continuously rotating structure, i.e., a 360-degree rotation, the rotation angle of the six working surfaces 311 can be set to 60 degrees. After each rotation, there can be a pause of a few seconds or tens of seconds (i.e., to provide marking time for one or more marking positions 312 on each working surface 311) before the next 60-degree rotation is performed. This achieves the conversion of the working surface 311 facing the laser head 41 to the next working surface 311, thus ensuring the reliability of the marking rotary table 3 during continuous laser marking operations.

[0020] like Figure 1 , 3 As shown in Figures 4 and 6, a positioning origin 7 is set below the marking rotary table 3 and between any two working surfaces 311. The positioning origin 7 rotates synchronously with the marking rotary table 3. A sensing component is set on the rotation trajectory line of the worktable 2 relative to the positioning origin 7. During the initial rotation stage of the marking rotary table 3, the sensing component is used to sense the position of the positioning origin 7 and calibrate the starting position of the marking. This design can realize a starting position (i.e., positioning origin 7) for the marking rotary table 3. After the sensing component senses the corresponding starting origin, the control unit controls the marking rotary table 3 to rotate to the position of the first working surface 311, thereby ensuring that the laser marking machine will not mark randomly. This avoids the situation where the marking rotary table 3 cannot accurately position itself to the working surface 311 when marking due to unreliable design. The preferred design scheme for the sensing component is a photoelectric switch or a proximity switch.

[0021] like Figure 1-2 As shown in 4-5, the laser unit 4 also includes a base frame 45 limited on the worktable 2, a sliding rail 44 limited on the base frame 45, a support sliding frame 43 limited on the sliding rail 44 and moving away from or towards the marking rotating table 3, and a support member 42 limited on the support sliding frame 43. The limit of the support member 42 on the support sliding frame 43 is adjustable. The laser head 41 is positioned on the support member 42, and the laser head 41 moves adjustablely on the support sliding frame 43 along with the support member 42, forming a direct adjustment between the center position of the laser head 41 and the center position of the marking rotary table 3. The laser head 41 and the support member 42 slide along the sliding rail 44 with the support sliding frame 43, forming a distance adjustment between the laser head 41 and the marking rotary table 3. This design is suitable for laser marking machines to adapt to marking operations of products of different specifications, ensuring the reliable positional distribution of the laser head 41 and meeting the reliable marking operation requirements of products of various specifications.

[0022] like Figure 1-6 As shown, the marking rotary table 3 is divided into six equal parts, and the number of working surfaces 311 is six working surfaces 311 adapted to the six-part marking rotary table 3. The rotation angle control command output by the control unit is a 60-degree rotation command adapted to the six-part marking rotary table 3. The design that the number of marking positions 312 on each working surface 311 is the same can further ensure that when the marking rotary table 3 is designed with a six-part structure, the control unit can ensure that each working surface 311 is reliably rotated one by one to the position corresponding to the laser head 41.

[0023] like Figure 1-6 As shown, the control unit within the marking rotation control panel 5 includes the control of the continuous rotation of the marking rotation table 3 and the control of the turntable switching interval between adjacent working surfaces 311 on the marking rotation table 3, which can ensure the reliability of the control unit's control.

[0024] like Figure 4 , 6 As shown, the marking rotary table 3 includes a geared motor 32 limited to the worktable 2, a drive motor 33 limited to the worktable 2 and distributed on one side of the geared motor 32, and a flange 31 connected to the reduction output shaft of the geared motor 32. The drive output shaft of the drive motor 33 is connected to the reduction input shaft of the geared motor 32, forming a high-speed, low-force conversion of the drive motor 33 into a low-speed, high-force conversion of the geared motor 32. This design ensures that the driving force of the drive motor 33 is accurately transmitted to the flange 31 via the geared motor 32, thus ensuring the reliability of the rotation of the marking rotary table 3.

[0025] like Figure 4 , 6As shown, the six working surfaces 311 on the marking rotary table 3 are distributed on the flange 31, and each marking position 312 is distributed near the edge of the flange 31. This design ensures a reliable distribution of each marking position 312 on the marking rotary table 3, and also allows for a greater distribution of the number of marking positions 312 involved. This further ensures marking efficiency, allowing each working surface 311 to be used for marking a larger number of products to be marked (i.e., by increasing the marking volume, the marking time required for a single batch is reduced, thereby improving efficiency).

Claims

1. A laser marking machine, comprising a worktable, a marking control screen positioned on the worktable, and laser units distributed on the worktable, wherein the laser units include laser heads, characterized in that: The laser marking machine also includes a marking rotating table and a marking rotation control screen located on the worktable. The marking rotation control screen includes a control unit. The marking rotating table includes several marking positions. The marking control screen outputs marking commands, and the control unit controls the marking rotating table to rotate automatically, so that each marking position faces the laser head and performs a marking action one by one.

2. The laser marking machine according to claim 1, characterized in that: The marking rotary table is arranged in several equal parts, and each part has a working surface. Several markings are distributed on each of the working surfaces. The working surfaces on the marking rotary table are rotated one by one to a position directly opposite the laser head by the rotation control unit. The marking control screen outputs marking commands, which are used to perform marking actions one by one at each marking position on each working surface.

3. The laser marking machine according to claim 2, characterized in that: A positioning origin is set below the marking rotary table and between any two working surfaces. The positioning origin rotates synchronously with the marking rotary table. A sensing component is set on the rotation trajectory line of the worktable relative to the positioning origin. During the initial rotation of the marking rotary table, the sensing component is used to sense the position of the positioning origin and calibrate the starting position of the marking.

4. The laser marking machine according to claim 2, characterized in that: The laser unit also includes a base frame limited on the worktable, a sliding rail limited on the base frame, a support sliding frame limited on the sliding rail and moving away from or towards the marking rotary table, and a support member limited on the support sliding frame. The limit of the support member on the support sliding frame is adjustable. The laser head is positioned on the support member, and the laser head moves adjustablely on the support sliding frame along with the support member, forming a direct adjustment between the center position of the laser head and the center position of the marking rotary table. The laser head and the support member slide along the sliding frame on the sliding rail, forming a distance adjustment between the laser head and the marking rotary table, and constituting a laser marking machine adapted to the marking operation of products of different specifications.

5. The laser marking machine according to claim 2, characterized in that: The marking rotary table is divided into six equal parts, and the number of working surfaces is six working surfaces adapted to the six-part marking rotary table. The rotation angle control command output by the control unit is a 60-degree rotation command adapted to the six-part marking rotary table.

6. The laser marking machine according to claim 2 or 5, characterized in that: The control unit within the marking rotation control panel controls the continuous rotation of the marking rotation table and the switching interval between adjacent working surfaces on the marking rotation table.

7. The laser marking machine according to claim 5, characterized in that: The marking rotary table includes a geared motor limited to the worktable, a drive motor limited to the worktable and distributed on one side of the geared motor, and a flange connected to the geared motor's reduction output shaft. The drive output shaft of the drive motor is connected to the geared motor's reduction input shaft, forming a system where the high-speed, low-force drive of the drive motor is converted into a low-speed, high-force drive of the geared motor, thus accurately transmitting the driving force of the geared motor to the flange.

8. The laser marking machine according to claim 7, characterized in that: The six working surfaces on the marking rotary table are distributed on the flange, and each marking position is located near the edge of the flange.

9. The laser marking machine according to claim 2 or 5, characterized in that: The number of marking positions is the same on each working surface.

10. The laser marking machine according to claim 3, characterized in that: The sensing component is a photoelectric switch or a proximity switch.

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