A laser marking device for the outer wall of a cylinder
By introducing a clamping device and auxiliary components into the laser marking device on the outer wall of the cylinder, the problem of marking deviation caused by material shaking is solved, and stable clamping and scanner protection are achieved, thereby improving marking accuracy and equipment life.
Patent Information
- Application Number
- CN202522310541.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-31
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-10-31
AI Technical Summary
In existing laser marking devices for cylinder outer walls, the material is easily impacted by external forces during marking, causing it to shake and resulting in marking deviations.
It employs a clamping device and auxiliary components. The clamping device achieves stable clamping through positive and negative threaded rods and a servo motor, while the auxiliary components protect the scanner with a protective cover to prevent dust accumulation.
It improves the stability of materials and the accuracy of marking, and extends the service life of the equipment.
Smart Images

Figure CN224927213U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of laser processing technology, and in particular to a laser marking device for the outer wall of a cylinder. Background Technology
[0002] The cylinder outer wall laser marking device is a special equipment designed for marking the surface of cylinders (such as hydraulic cylinders and pneumatic cylinders). Its core function is to use lasers to etch text, patterns, QR codes and other markings (such as model, specifications and production batch number) on the outer wall of the cylinder, so as to realize product traceability and information labeling. It is widely used in the hydraulic and pneumatic component manufacturing industry.
[0003] However, the existing equipment has the following shortcomings: when marking materials, the materials are easily impacted by external forces, causing the materials to shake slightly on the surface of the box, resulting in deviations in the marking process.
[0004] Therefore, we propose a laser marking device for the outer wall of a cylinder to solve the problems mentioned above. Utility Model Content
[0005] The purpose of this invention is to solve the problem that in the existing technology, when the equipment marks the material cylinder, the material is easily shaken by external impact, causing the marking of the material to deviate. Therefore, a laser marking device for the outer wall of the cylinder is proposed.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a laser marking device for the outer wall of a cylinder, comprising a housing, a connecting column, a telescopic column, a marking device, a scanner, and a clamping device. The connecting column is fixedly connected to the upper end of the housing, the telescopic column is mounted on the surface of the connecting column, the marking device is mounted at one end of the telescopic column, the scanner is mounted at the lower end of the marking device, and the clamping device is mounted on the upper end of the housing. The clamping device includes a mounting frame and a positive and negative threaded rod. The mounting frame is fixedly connected to the upper surface of the housing, the positive and negative threaded rod is rotatably connected inside the mounting frame, a protrusion is fixedly connected to the middle of the positive and negative threaded rod, a clamping arm is slidably connected to the surface of the mounting frame, the clamping arm is threadedly connected to the surface of the positive and negative threaded rod, a clamping block is fixedly connected to the end of the clamping arm away from the mounting frame, and a contact block is fixedly connected to the surface of the clamping block.
[0007] Furthermore, a first gear is fixedly connected to one end of the positive and negative threaded rod, and a second gear is meshed with the side of the first gear. By setting the positive and negative threaded rod, the clamping arm can be moved, reducing the situation where the clamping arm is difficult to move during use.
[0008] Furthermore, a servo motor is fixedly connected to the lower end of the second gear.
[0009] Furthermore, a mounting base is fixedly connected to the surface of the servo motor. The mounting base is fixedly connected to the surface of the mounting frame, and the mounting base is provided to facilitate the limiting of the servo motor.
[0010] Furthermore, an auxiliary component is fixedly installed on the lower surface of the marking device. The auxiliary component includes a protective cover and a rotating arm. The rotating arm is fixedly connected to the side of the protective cover, and the protective cover is installed on the surface of the scanner. A support frame is fixedly connected to the lower end of the marking device. A rotating rod is fixedly connected to the end of the rotating arm away from the protective cover. The rotating rod is rotatably connected inside the support frame. A moving rod is slidably connected inside the support frame. A locking block is fixedly connected to one end of the moving rod, and the locking block engages with the surface of the rotating arm. A sliding rod is fixedly connected inside the moving rod, and the sliding rod is slidably connected inside the support frame. By setting up the protective cover, the scanner can be protected, reducing the likelihood of dust accumulation during use, which could cause the scanner to have difficulty in accurate scanning and positioning.
[0011] Furthermore, a first spring is sleeved and connected to the surface of the slide rod.
[0012] Furthermore, one end of the first spring is fixedly connected to the surface of the support frame, and the end of the first spring away from the support frame is fixedly connected to the surface of the moving rod. The first spring is provided to facilitate the application of a restoring force to the moving rod.
[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows: In this invention, by setting up a clamping device, the material is effectively and stably clamped, which reduces the situation where the material is easily impacted by external forces when marking the material in existing equipment, causing the material to shake slightly on the surface of the box and resulting in marking deviation. This clamping device achieves material stability, facilitates accurate marking of the material, and improves the stability of the equipment.
[0014] In this invention, by setting an auxiliary component, the scanner is effectively protected, which reduces the problem of dust or debris easily adhering to the scanner surface during transportation and storage, causing the scanner surface to become clogged and making it difficult to scan and position accurately. This auxiliary component achieves shielding protection for the scanner and improves the service life of the equipment. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.
[0016] Figure 1 This utility model provides a three-dimensional structural schematic diagram of a laser marking device for the outer wall of a cylinder. Figure 2 This utility model provides a side view structural diagram of a laser marking device for the outer wall of a cylinder. Figure 3 This utility model provides a partial structural schematic diagram of a laser marking device for the outer wall of a cylinder. Figure 4 This utility model proposes a laser marking device for the outer wall of a cylinder. Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 This utility model proposes a laser marking device for the outer wall of a cylinder. Figure 3 Enlarged structural diagram at point B.
[0017] Legend: 1. Housing; 2. Connecting column; 3. Telescopic column; 4. Marker; 5. Scanner; 6. Clamping device; 61. Mounting bracket; 62. Threaded rod; 63. Protrusion; 64. Clamping arm; 65. Clamping block; 66. Contact block; 67. First gear; 68. Second gear; 69. Servo motor; 610. Mounting base; 7. Auxiliary components; 71. Protective cover; 72. Rotating arm; 73. Support frame; 74. Locking block; 75. Moving rod; 76. Sliding rod; 77. First spring; 78. Rotating rod. Detailed Implementation
[0018] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.
[0019] Please see Figures 1-5 This utility model provides a technical solution: a laser marking device for the outer wall of a cylinder, including a housing 1, a connecting column 2, a telescopic column 3, a marking device 4, a scanner 5, and a clamping device 6. The connecting column 2 is fixedly connected to the upper end of the housing 1, the telescopic column 3 is installed on the surface of the connecting column 2, the marking device 4 is installed at one end of the telescopic column 3, and the scanner 5 is installed at the lower end of the marking device 4.
[0020] The housing 1 serves as the overall support base for the equipment, welded from high-strength steel with precision-machined surfaces to ensure stable material placement. The connecting column 2 acts as the mounting carrier for the telescopic column 3, vertically fixed to the housing 1 to provide stable support. The telescopic column 3 is the lifting and adjusting component for the marking device 4, allowing it to extend and retract flexibly along the connecting column 2 to adjust the height of the marking device 4 to accommodate cylinders of different specifications. The marking device 4 is the core component for laser marking, capable of emitting a high-energy laser beam to form clear markings on the outer wall of the cylinder. The scanner 5 is the marking positioning component, accurately identifying the position and contour of the cylinder to guide the marking device 4 in precise operation. The clamping device 6 securely clamps the cylinder, preventing material deviation during marking and ensuring marking accuracy.
[0021] The specific settings and functions of its clamping device 6 and auxiliary components 7 will be discussed below.
[0022] In this embodiment: the clamping device 6 is installed on the upper end of the housing 1. The clamping device 6 includes a mounting frame 61 and a positive and negative threaded rod 62. The mounting frame 61 is the mounting frame of the clamping component, fixed to the housing 1, and provides stable support. The positive and negative threaded rod 62 is the driving core of the clamping arm 64. The threads at both ends of the rod rotate in opposite directions, which can drive the clamping arms 64 on both sides to move synchronously in opposite directions, so as to realize the centering and clamping of the cylinder. The mounting frame 61 is fixedly connected to the upper surface of the housing 1. The positive and negative threaded rod 62 is rotatably connected inside the mounting frame 61. A protrusion 63 is fixedly connected in the middle of the positive and negative threaded rod 62. The clamping arm 64 is slidably connected to the surface of the mounting frame 61. The clamping arm 64 is threadedly connected to the surface of the positive and negative threaded rod 62. A clamping block 65 is fixedly connected to the end of the clamping arm 64 away from the mounting frame 61. A contact block 66 is fixedly connected to the surface of the clamping block 65. The contact block 66 is made of wear-resistant rubber material, which can increase the friction with the cylinder and avoid scratching the outer wall of the cylinder.
[0023] Specifically, a first gear 67 is fixedly connected to one end of the threaded rod 62. The first gear 67 is coaxially fixed with the threaded rod 62 and can rotate synchronously. A second gear 68 is meshed with the side of the first gear 67.
[0024] In this embodiment, by setting the positive and negative threaded rods 62, the clamping arm 64 can be moved, reducing the difficulty of moving the clamping arm 64 during use.
[0025] Specifically, a servo motor 69 is fixedly connected to the lower end of the second gear 68. The servo motor 69 is the power source of the clamping device 6. Its speed is controllable and the movement distance of the clamping arm 64 can be precisely adjusted.
[0026] Specifically, a mounting base 610 is fixedly connected to the surface of the servo motor 69. The mounting base 610 is fixedly connected to the surface of the mounting bracket 61. The mounting base 610 is provided to facilitate the limiting of the servo motor 69.
[0027] In this implementation scheme: An auxiliary component 7 is fixedly installed on the lower surface of the marking device 4. The auxiliary component 7 includes a protective cover 71 and a rotating arm 72. The protective cover 71 is a dustproof protection barrier for the scanner 5. It is made of transparent acrylic material, which can block the adsorption of dust and debris, while not affecting the penetration of scanning light. The rotating arm 72 is the mounting and rotating component of the protective cover 71. It can drive the protective cover 71 to open and close flexibly without affecting the scanning operation. The rotating arm 72 is fixedly connected to the side of the protective cover 71. The protective cover 71 is installed on the surface of the scanner 5. A support frame 73 is fixedly connected to the lower end of the marking device 4. A rotating rod 78 is fixedly connected to the end of the rotating arm 72 away from the protective cover 71. The rotating rod 78 is rotatably connected inside the support frame 73. A moving rod 75 is slidably connected inside the support frame 73. A locking block 74 is fixedly connected to one end of the moving rod 75. The locking block 74 is engaged with the surface of the rotating arm 72. A sliding rod 76 is fixedly connected inside the moving rod 75. The sliding rod 76 is slidably connected inside the support frame 73.
[0028] In this embodiment: by setting a protective cover 71, the scanner 5 can be protected, reducing the likelihood of dust accumulation on the scanner 5 during use, which could make it difficult for the scanner 5 to accurately scan and position.
[0029] Specifically, a first spring 77 is sleeved and connected to the surface of the slide rod 76. The first spring 77 is a compression spring with a moderate elastic coefficient, which can provide a stable restoring force.
[0030] Specifically, one end of the first spring 77 is fixedly connected to the surface of the support frame 73, and the other end of the first spring 77 away from the support frame 73 is fixedly connected to the surface of the moving rod 75. The first spring 77 is provided to facilitate the application of a restoring force to the moving rod 75.
[0031] Working Principle: When using the equipment, the user places the cylinder to be marked on the upper surface of the housing 1, then starts the equipment. The connecting column 2 drives the telescopic column 3 to move up and down, and the telescopic column 3 drives the marking device 4 to move, aligning the scanner 5 at the lower end of the marking device 4 with the material surface. The marking device 4 then runs to mark the material surface. During the marking process, the material needs to be clamped. The servo motor 69 is started, driving the second gear 68 to rotate the first gear 67. The rotation of the first gear 67 then drives the positive and negative threaded rod 62 to rotate, which in turn drives the clamping arm 64 to move on the surface of the mounting frame 61, causing the contact block 66 to clamp the material surface. By setting up the clamping device 6, the material is effectively and stably clamped, which reduces the situation where the material is easily impacted by external forces during the marking process of existing equipment, causing slight shaking of the material on the surface of the housing 1 and resulting in marking deviation. This clamping device 6 achieves material stability, facilitates accurate marking of the material, and improves the stability of the equipment.
[0032] By setting auxiliary component 7, before marking, the user removes the protective cover 71 from the surface of the scanner 5. The user pulls the moving rod 75, which moves the sliding rod 76. When the moving rod 75 moves, it causes the locking block 74 to disengage from the surface of the rotating arm 72. When the moving rod 75 moves, it compresses the first spring 77, generating elastic force. Then, the rotating arm 72 is unrestrained. Rotating the rotating arm 72 causes the protective cover 71 to disengage from the surface of the scanner 5 and rotate 180 degrees, releasing the restraint of the moving rod 75. Then, the first spring 77 returns to its original position, causing the moving rod 75 to move the locking block 74 to restrain the rotating arm 72, thus mechanically locking the protective cover 71. By setting auxiliary component 7, the scanner 5 is effectively protected, reducing the likelihood of dust or debris accumulating on the surface of the scanner 5 during transportation and storage, which can cause blockage and make accurate scanning difficult. This auxiliary component 7 provides shielding protection for the scanner 5 and improves the service life of the equipment.
[0033] The above description discloses only one or more preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above embodiments and making equivalent changes in accordance with the claims of the present utility model still fall within the scope of the present utility model.
Claims
1. A laser marking device for the outer wall of a cylinder, comprising a housing (1), a connecting column (2), a telescopic column (3), a marking device (4), a scanner (5), and a clamping device (6), characterized in that: The connecting column (2) is fixedly connected to the upper end of the box (1), the telescopic column (3) is installed on the surface of the connecting column (2), the marking device (4) is installed at one end of the telescopic column (3), and the scanner (5) is installed at the lower end of the marking device (4). The clamping device (6) is installed on the upper end of the housing (1). The clamping device (6) includes a mounting frame (61) and a positive and negative threaded rod (62). The mounting frame (61) is fixedly connected to the upper surface of the housing (1). The positive and negative threaded rod (62) is rotatably connected inside the mounting frame (61). A protrusion (63) is fixedly connected in the middle of the positive and negative threaded rod (62). A clamping arm (64) is slidably connected to the surface of the mounting frame (61). The clamping arm (64) is threadedly connected to the surface of the positive and negative threaded rod (62). A clamping block (65) is fixedly connected to the end of the clamping arm (64) away from the mounting frame (61). A contact block (66) is fixedly connected to the surface of the clamping block (65).
2. The laser marking device for the outer wall of a cylinder according to claim 1, characterized in that: One end of the positive and negative threaded rod (62) is fixedly connected to a first gear (67), and the side of the first gear (67) is meshed with a second gear (68).
3. The laser marking device for the outer wall of a cylinder according to claim 2, characterized in that: A servo motor (69) is fixedly connected to the lower end of the second gear (68).
4. The laser marking device for the outer wall of a cylinder according to claim 3, characterized in that: The servo motor (69) is fixedly connected to a mounting base (610), which is fixedly connected to the surface of the mounting bracket (61).
5. The laser marking device for the outer wall of a cylinder according to claim 1, characterized in that: An auxiliary component (7) is fixedly provided on the lower surface of the marking device (4). The auxiliary component (7) includes a protective cover (71) and a rotating arm (72). The rotating arm (72) is fixedly connected to the side of the protective cover (71). The protective cover (71) is installed on the surface of the scanner (5). A support frame (73) is fixedly connected to the lower end of the marking device (4). A rotating rod (78) is fixedly connected to the end of the rotating arm (72) away from the protective cover (71). The rotating rod (78) is rotatably connected inside the support frame (73). A moving rod (75) is slidably connected inside the support frame (73). A locking block (74) is fixedly connected to one end of the moving rod (75). The locking block (74) engages with the surface of the rotating arm (72). A sliding rod (76) is fixedly connected inside the moving rod (75). The sliding rod (76) is slidably connected inside the support frame (73).
6. The laser marking device for the outer wall of a cylinder according to claim 5, characterized in that: A first spring (77) is sleeved and connected to the surface of the slide rod (76).
7. The laser marking device for the outer wall of a cylinder according to claim 6, characterized in that: One end of the first spring (77) is fixedly connected to the surface of the support frame (73), and the other end of the first spring (77) away from the support frame (73) is fixedly connected to the surface of the moving rod (75).
