Metal marking machine

Abstract

The utility model discloses a metal marking machine which comprises four supporting columns and a bottom table fixed to one ends of the surfaces of the four supporting columns, a lifting unit is installed at the top ends of the four supporting columns, a sliding table is installed at the movable end of the lifting unit, and a laser marking head is installed on the lower surface of the sliding table. Two symmetrical convex plates are slidably mounted at the top end of the bottom table, and elastic clamping pieces are arranged on the outer walls of the opposite sides of the two convex plates. Through mechanical control of the bevel gear driving unit and the gear and rack bidirectional pushing structure, stability and consistency of workpieces in the marking process are guaranteed, high repeatability can be achieved through the accurate alignment mechanism, especially in batch production, it can be guaranteed that marking positions of all the workpieces are completely consistent, and the production efficiency is improved. And a mechanical clamping and aligning mode is adopted, so that an operator does not need to carry out tedious manual adjustment any more, and the complexity in the operation process is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of marking, in particular to a metal marking machine. Background Art

[0002] Laser marking machines are a vital piece of equipment in modern manufacturing, widely used in fields such as metal processing, automotive manufacturing, electronics, and medical devices. Their primary function is to create permanent, legible marks on metal surfaces using laser technology. These marks, which include barcodes, QR codes, text, patterns, and serial numbers, not only enhance the aesthetics of products but also facilitate traceability and quality control. A laser marking machine primarily consists of a laser generator, an optical system, a control system, a frame, and a worktable. The laser generator is the core of the machine, responsible for generating the laser beam. The optical system focuses the laser beam onto the workpiece surface to ensure the desired mark. The control system is responsible for controlling laser emission and trajectory, as well as setting marking parameters. Computer control is typically used for precise programming and adjustment. The frame provides support and stability, while the worktable secures the metal workpiece to be processed. Its height and position are adjustable to accommodate workpieces of varying sizes and shapes. Through the synergistic effect of these components, a laser marking machine can precisely mark metal surfaces with a high-energy-density laser beam, ensuring clear and durable marks.

[0003] For example, a non-ferrous metal alloy marking machine disclosed in the authorization announcement number CN219632837U includes a workbench, a controller, a button, a display screen, an assembly, a movable frame, a laser head, a mover, and a fixing device. By rotating the rotator, the one-way screw is driven to rotate, thereby causing the first connecting plate that is threaded with it to move downward, and at the same time driving the second connecting plate to move downward synchronously under the sliding of the guide rod, clamping and fixing the processed object to prevent it from shifting. At the same time, by setting three groups of movable groups, three groups of processed parts can be fixed at the same time to reduce the number of position adjustments. However, in order to ensure that the workpiece is marked in the center during use, this technical solution requires the staff to reciprocate and adjust the position relationship between the workpiece and the marking head, that is, to continuously align the workpiece. During the manual adjustment process, the staff's skill level and experience will directly affect the accuracy of the marking. When producing large quantities of products, there are inconsistencies in the marking positions between different workpieces, affecting the quality and appearance of the product. Utility Model Content

[0004] The purpose of the present utility model is to provide a metal marking machine. When a metal workpiece to be marked is placed under a laser marking head, a bevel gear drive unit drives a main shaft to rotate. The main shaft drives two C-arms, an embossed plate, and an elastic clamping member to move closer to each other through a gear rack bidirectional sliding structure until the two elastic clamping members are centered on the workpiece, thereby solving the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a metal marking machine, comprising four pillars and a base with one end of the four pillar surfaces fixed, the top ends of the four pillars are installed with lifting units, the movable ends of the lifting units are installed with a slide, and the lower surface of the slide is installed with a laser marking head, two symmetrical embossed plates are slidably installed on the top of the base, elastic clamping parts are provided on the outer walls of the opposite sides of the two embossed plates, a C-arm is installed on the outer wall of the other side of the embossed plate, a main shaft is rotatably installed at the center position of the bottom end of the base, the bottom end of the main shaft is installed with a gear rack bidirectional sliding structure for driving the two C-arms to move toward each other, and a bevel gear drive unit for driving the main shaft to rotate is installed inside the base.

[0006] Preferably, the lifting unit includes an upper beam plate fixed to the top ends of the four pillars and a hydraulic cylinder installed at the center position of the top end of the upper beam plate, and the bottom end of the piston rod of the hydraulic cylinder is fixedly connected to the top end of the slide.

[0007] Preferably, steel sleeves are fixed at the corners inside the slide, and the steel sleeves and the pillars are in sliding fit.

[0008] Preferably, two guide rails are installed on both sides of the top of the base, and sliding sleeves that slide in cooperation with the guide rails are installed on both sides of the bottom of the embossed plate.

[0009] Preferably, the bevel gear drive unit includes a cavity arranged inside the base, a servo motor installed inside the cavity, and a bevel gear transmission structure installed at the output end of the servo motor to drive the main shaft to rotate.

[0010] Preferably, the gear rack bidirectional sliding structure includes a gear mounted on the bottom end of the main shaft and tooth grooves arranged on the outer walls of the two opposite sides of the C-arms, and the gear and the tooth grooves are engaged with each other.

[0011] Preferably, the elastic clamping member includes a coil spring installed on an outer wall of one side of the embossed plate and a baffle installed on the top end of the coil spring.

[0012] Compared with the existing technology, the beneficial effects of the present invention are: this metal marking machine ensures the stability and consistency of the workpiece during the marking process through the mechanical control of the bevel gear drive unit and the gear rack bidirectional sliding structure. This precise alignment mechanism can achieve high repeatability, especially in batch production, it can ensure that the marking position of each workpiece is completely consistent, and adopts a mechanized clamping and alignment method. The operator no longer needs to perform tedious manual adjustments, which reduces the complexity of the operation process and makes the entire marking process more concise and clear. The automated centering adjustment can quickly and accurately position the workpiece, so that the laser marking machine can complete the marking work at a faster speed, thereby improving overall production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0014] Figure 2 This is a side structural diagram of the present utility model;

[0015] Figure 3 This is a schematic diagram of the three-dimensional structure of the utility model Figure 1 ;

[0016] Figure 4 This is a schematic diagram of the three-dimensional structure of the utility model Figure 2 ;

[0017] Figure 5 This is a schematic diagram of the three-dimensional structure of the utility model Figure 3 .

[0018] In the figure: 1. Pillar; 2. Base; 201. Cavity; 3. Slide; 4. Upper beam plate; 5. Hydraulic cylinder; 6. Laser marking head; 7. Bevel gear drive unit; 8. Embossed plate; 9. C-arm; 10. Gear rack bidirectional sliding structure; 11. Spindle; 12. Elastic clamping part. DETAILED DESCRIPTION

[0019] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-5The utility model provides an embodiment of a metal marking machine, comprising four pillars 1 and a base 2 fixed at one end of the surface of the four pillars 1, a lifting unit installed on the top of the four pillars 1, a slide 3 installed on the movable end of the lifting unit, and a laser marking head 6 installed on the lower surface of the slide 3, two symmetrical embossed plates 8 slidably installed on the top of the base 2, two guide rails installed on both sides of the top of the base 2, and sliding sleeves that slide with the guide rails installed on both sides of the bottom of the embossed plates 8;

[0021] Elastic clamping members 12 are provided on the outer walls of the opposing sides of the two embossed plates 8. A C-arm 9 is mounted on the outer wall of the other side of the embossed plates 8. A spindle 11 is rotatably mounted at the center of the bottom end of the base 2. A gear rack bidirectional displacement structure 10 is mounted at the bottom end of the spindle 11 for driving the two C-arms 9 toward each other. A bevel gear drive unit 7 is mounted inside the base 2 for driving the spindle 11 to rotate.

[0022] The lifting unit includes an upper beam 4 fixed to the top of the four pillars 1 and a hydraulic cylinder 5 installed at the center of the top of the upper beam 4. The bottom end of the piston rod of the hydraulic cylinder 5 is fixedly connected to the top of the slide 3. Steel sleeves are fixed at the corners inside the slide 3. The steel sleeves and the pillars 1 slide together. The hydraulic cylinder 5 drives the slide 3, the steel sleeves, and the laser marking head 6 in the vertical direction to adjust the distance between the laser marking head 6 and the workpiece.

[0023] The bevel gear drive unit 7 includes a cavity 201 provided inside the base 2, a servo motor installed inside the cavity 201, and a bevel gear transmission structure installed at the output end of the servo motor for driving the main shaft 11 to rotate. The staff can install a motor controller near the device. The output end of the motor controller is electrically connected to the input end of the servo motor in the bevel gear drive unit 7, and the motor controller turns on the servo motor to work.

[0024] The rack and pinion bidirectional sliding structure 10 includes a gear mounted on the bottom end of the spindle 11 and tooth grooves provided on the outer walls of the two C-arms 9 on opposite sides. The gear and tooth grooves mesh with each other, and the output power of the servo motor is transmitted to the spindle 11 through the bevel gear transmission structure. At this time, the spindle 11 drives the gear to rotate. Since tooth grooves are provided on the outer walls of the two C-arms 9 on opposite sides, the gear drives the two C-arms 9 closer to each other through the tooth grooves, thereby quickly and accurately positioning the workpiece.

[0025] The elastic clamping member 12 includes a coil spring installed on the outer wall of one side of the embossed plate 8 and a baffle installed on the top of the coil spring. When both embossed plates 8 move toward the direction of the workpiece, the baffle in the elastic clamping member 12 contacts the outer wall of one side of the workpiece, and the spring between the baffle and the embossed plate 8 is gradually compressed, which can apply pressure evenly and effectively reduce the risk of damage to the workpiece surface when clamping the workpiece.

[0026] When the embodiment of the present application is in use, the staff first places the metal workpiece to be marked on the upper surface of the base 2. At this time, the laser marking head 6 is located above the metal workpiece. The staff can then turn on the bevel gear drive unit 7 to work. The rotary power of the bevel gear drive unit 7 is transmitted to the main shaft 11. The main shaft 11 and the gear rack bidirectional sliding structure 10 drive the two C-arms 9, the embossed plate 8 and the elastic clamping member 12 to approach each other until the elastic clamping member 12 contacts one side of the metal workpiece. Since the two elastic clamping members 12 are always close to each other, as the two elastic clamping members 12 are 2 approaches, the workpiece can be centered, and the mechanical control of the bevel gear drive unit 7 and the gear rack bidirectional sliding structure 10 ensures the stability and consistency of the workpiece during the marking process. Its centering alignment mechanism can achieve high repeatability, especially in batch production, which can ensure that the marking position of each workpiece is completely consistent, meeting high-standard product quality requirements, and the operator no longer needs to perform tedious manual adjustments. The operator only needs to place the workpiece in the specified position, and the rest of the adjustment process is completed by the equipment, reducing the complexity of the operation process and making the entire marking process more concise and clear.

[0027] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A metal marking machine, characterized in that: The invention comprises four pillars (1) and a base (2) with one end of the surface of the four pillars (1) fixed, the top ends of the four pillars (1) being installed with a lifting unit, the movable end of the lifting unit being installed with a slide (3), and the lower surface of the slide (3) being installed with a laser marking head (6), the top end of the base (2) being slidably installed with two symmetrical embossed plates (8), the outer walls of the two embossed plates (8) on the opposite sides being both provided with elastic clamping parts (12), the outer walls of the other sides of the embossed plates (8) being installed with a C-shaped arm (9), a main shaft (11) being rotatably installed at the center position of the bottom end of the base (2), the bottom end of the main shaft (11) being installed with a gear rack bidirectional sliding structure (10) for driving the two C-shaped arms (9) to move toward each other, and a bevel gear driving unit (7) for driving the main shaft (11) to rotate being installed inside the base (2).

2. A metal marking machine according to claim 1, characterized in that: The lifting unit comprises an upper beam plate (4) fixed to the top ends of the four pillars (1) and a hydraulic cylinder (5) installed at the center position of the top end of the upper beam plate (4); the bottom end of the piston rod of the hydraulic cylinder (5) is fixedly connected to the top end of the slide (3).

3. A metal marking machine according to claim 2, characterized in that: Steel sleeves are fixed at the corners inside the slide (3), and the steel sleeves and the pillars (1) are in sliding cooperation.

4. A metal marking machine according to claim 1, characterized in that: Two guide rails are installed on both sides of the top of the base (2), and sliding sleeves that slide in cooperation with the guide rails are installed on both sides of the bottom of the embossed plate (8).

5. The metal marking machine according to claim 1, characterized in that: The bevel gear drive unit (7) comprises a cavity (201) arranged inside the base (2), a servo motor installed inside the cavity (201), and a bevel gear transmission structure installed at the output end of the servo motor for driving the main shaft (11) to rotate.

6. The metal marking machine according to claim 5, characterized in that: The gear rack bidirectional sliding structure (10) comprises a gear mounted on the bottom end of the main shaft (11) and tooth grooves arranged on the outer walls of the two opposite sides of the C-shaped arms (9), and the gear and the tooth grooves are meshed with each other.

7. The metal marking machine according to claim 1, characterized in that: The elastic clamping member (12) comprises a coil spring mounted on an outer wall of one side of the embossed plate (8) and a baffle mounted on the top end of the coil spring.

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