A laser marking device for hydraulic valve blocks

Abstract

This utility model belongs to the field of laser marking technology for hydraulic valve blocks, and discloses a laser marking device for hydraulic valve blocks. It includes a main unit for vertical lifting and reciprocating movement for laser marking, and a table device for limiting positioning and guiding the hydraulic valve block to move forward in close contact. The main unit is mounted on the table device, and a drive device for rotating and pushing the hydraulic valve block forward is provided on the feeding side of the main unit. The drive device includes a fixed frame, a lifting frame in the middle of the fixed frame, an active roller in the middle of the lifting frame, a servo motor on one side of the active roller, and an adjustment component for adjusting the rotational pushing height between the lifting frame and the fixed frame. This utility model's laser marking device for hydraulic valve blocks, with its active roller in conjunction with an anti-slip rubber sleeve and a servo motor, achieves automatic and stable forward pushing of the hydraulic valve block in close contact, avoiding gaps, reducing equipment start-up and shutdown time, and improving the speed and continuity of laser marking.

Description

Technical Field

[0001] This utility model belongs to the field of laser marking technology for hydraulic valve blocks, and in particular relates to a laser marking device for hydraulic valve blocks. Background Technology

[0002] As a key component in hydraulic systems, the clarity and durability of markings on hydraulic valve blocks directly impact product traceability and operational safety. Laser marking technology, with its advantages of high precision, non-contact operation, and environmental friendliness, has become the preferred process for marking hydraulic valve blocks. Laser marking on hydraulic valve blocks is a process that uses a high-energy laser beam to create a physical or chemical reaction on a metal surface, forming a permanent mark. Using fiber optic or ultraviolet lasers, it can achieve micron-level precision marking without damaging the workpiece, with a marking depth typically controlled within the range of 0.01-0.5mm. This technology has three core advantages: First, the marking content can include complex information such as serial numbers and QR codes, with a minimum line width of 0.02mm; second, it eliminates the need for consumables such as ink, meeting environmental requirements and reducing operating costs by more than 60%; third, the markings are resistant to high temperatures and corrosion, maintaining clarity for over 20 years even when immersed in hydraulic oil. Compared to traditional screen printing or mechanical engraving, its defect rate can be controlled below 0.1%, making it particularly suitable for high-end hydraulic applications such as aerospace and engineering machinery.

[0003] Comparing with Chinese Patent No. CN222289164U, a laser marking device for hydraulic valve blocks is disclosed, including a chain conveyor belt, which comprises several chain plates. Six-degree-of-freedom robotic arms are fitted at both ends of the chain conveyor belt. Baffles are symmetrically arranged on both sides of the chain conveyor belt. Each chain plate is equipped with a partition plate for contacting the side of the hydraulic valve block. A mounting frame and symmetrically distributed clamping components are provided on the baffles. A cross slide is provided on the mounting frame, and a laser marking head is mounted on the cross slide, positioned above the clamping components. During the laser marking process on the hydraulic valve block, automated clamping and limiting can be achieved. The hydraulic valve block will not shift position during processing, and no manual intervention is required for unloading and replacement after processing. The labor intensity of manual operation is significantly reduced, and the intermittent conveying of the hydraulic valve block on the production line improves the continuity of laser marking.

[0004] However, the aforementioned patented hydraulic valve block uses a partition plate to isolate the propulsion, which creates a spatial gap. The laser marking process requires a pause and waiting to avoid this empty stroke, which greatly reduces the speed and continuity of laser marking. Therefore, a new device needs to be designed. Utility Model Content

[0005] The purpose of this invention is to provide a laser marking device for hydraulic valve blocks to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A laser marking device for a hydraulic valve block includes a main unit for laser marking by lifting and reciprocating vertically, and a table device for limiting positioning and guiding the hydraulic valve block to push forward in close contact. The main unit is mounted on the table device, and a drive device for rotating and pushing the hydraulic valve block forward is provided on the feeding side of the main unit. The table device includes a worktable with a fixed slide rail and a movable slide rail parallel to the front of the fixed slide rail. Locking pins are installed at both ends of the movable slide rail, and guide components for limiting parallel sliding are provided at both ends of the movable slide rail. The main unit includes a lifting component for adjusting the laser marking height by moving vertically. A linear guide rail is mounted on the lifting component, a linear motor is mounted on the linear guide rail, a translation frame is mounted on the linear motor, and a laser marking head is mounted on the translation frame. The drive device includes a fixed frame with a lifting frame in the middle. An active roller is mounted in the middle of the lifting frame, and a servo motor is provided on one side of the active roller. An adjustment component for adjusting the rotation and pushing height is provided between the lifting frame and the fixed frame.

[0008] Furthermore: the lifting assembly includes a support frame erected behind the worktable, a lead screw is provided in the support frame, a lifting motor is provided at the top of the lead screw, and a cantilever frame is screwed to the middle of the lead screw.

[0009] Furthermore, the cantilever is horizontally positioned and its length is at least three-quarters of the width of the workbench.

[0010] Furthermore, the guiding component includes horizontally arranged limiting grooves on both sides of the worktable and two limiting sliders symmetrically installed at the bottom of both ends of the movable slide rail.

[0011] Furthermore, the fixed slide rail and the movable slide rail have the same height, and the width of the movable slide rail is 5 times the width of the fixed slide rail.

[0012] Furthermore: the adjustment assembly includes an adjustment screw screwed to the middle of the fixed frame, two limiting slide rods symmetrically arranged on both sides of the adjustment screw rod, the limiting slide rods being slidably connected to the fixed frame, the adjustment screw rod being rotatably connected to the lifting frame, and the limiting slide rods being bolted to the lifting frame.

[0013] Furthermore, the surface of the drive roller is covered with an anti-slip rubber sleeve.

[0014] Compared with existing technologies, the beneficial effects are:

[0015] 1. The active roller of the drive unit, together with the anti-slip rubber sleeve and servo motor, realizes the hydraulic valve block to automatically and smoothly push forward in close contact with the front and rear, avoiding gap space, reducing equipment start-up and shutdown time, and improving the speed and continuity of laser marking in conjunction with the rotation pushing mechanism;

[0016] 2. By using parallel fixed slide rails and adjustable movable slide rails (equipped with limit sliders / slide groove systems), the hydraulic valve block is ensured to maintain linear movement during transmission, avoiding deviation and improving the consistency of marking position; the width of the movable slide rail is 5 times that of the fixed slide rail, enhancing adaptability to valve blocks of different sizes and meeting diverse production needs.

[0017] 3. The lifting frame structure, which combines the adjusting screw and the limiting slide bar, can quickly adjust the height of the active roller to adapt to different valve block thicknesses and ensure uniform pushing pressure; the cantilever frame design (length > 3 / 4 of the worktable width) combined with the screw lifting mechanism expands the marking coverage and achieves precise height adjustment to meet the processing needs of valve blocks of different heights.

[0018] 4. By integrating mechanical limit, automated push and dynamic adjustment systems, the problems of inaccurate positioning, low efficiency and poor adaptability in hydraulic valve block marking are solved, realizing high-precision, high-efficiency and high-compatibility laser marking operations. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a laser marking device for a hydraulic valve block according to the present invention;

[0020] Figure 2 This is a schematic diagram of the table device of the laser marking equipment for hydraulic valve blocks described in this utility model;

[0021] Figure 3 This is an enlarged view of point A of the laser marking equipment for hydraulic valve blocks described in this utility model;

[0022] Figure 4 This is a schematic diagram of the main unit of a laser marking device for a hydraulic valve block according to the present invention;

[0023] Figure 5 This is a right view of the main unit of the laser marking equipment for hydraulic valve blocks described in this utility model;

[0024] Figure 6 This is a schematic diagram of the drive device for a laser marking device for a hydraulic valve block according to the present invention;

[0025] Figure 7 This is a right view of the drive device of a laser marking equipment for a hydraulic valve block according to the present invention.

[0026] In the attached diagram, the following are the reference numerals: 101, worktable; 102, fixed slide rail; 103, movable slide rail; 104, limiting slide groove; 105, limiting slider; 106, locking pin; 201, support frame; 202, lead screw; 203, lifting motor; 204, cantilever frame; 205, linear guide rail; 206, linear motor; 207, translation frame; 208, laser marking head; 301, fixed frame; 302, lifting frame; 303, drive roller; 304, servo motor; 305, limiting slide bar; 306, adjusting screw. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1-7 A laser marking device for hydraulic valve blocks includes a main unit for laser marking by lifting up and down and moving back and forth, and a table device for limiting positioning and guiding the hydraulic valve block to push forward. The main unit is mounted on the table device, and a drive device for rotating and pushing the hydraulic valve block forward is provided on the feeding side of the main unit.

[0029] In this embodiment: the table device includes a workbench 101, on which a fixed slide rail 102 is provided. A movable slide rail 103 is arranged parallel to the front of the fixed slide rail 102. Locking pins 106 are respectively installed at both ends of the movable slide rail 103. Guide components for restricting parallel sliding are respectively provided at both ends of the movable slide rail 103. The guide components include limiting slide grooves 104 arranged horizontally on both sides of the workbench 101 and two limiting sliders 105 symmetrically installed at the bottom of both ends of the movable slide rail 103. The height of the fixed slide rail 102 and the movable slide rail 103 is... With the same degree, the width of the movable slide rail 103 is 5 times the width of the fixed slide rail 102; the movable slide rail 103 slides on the worktable 101 according to the length of the hydraulic valve block, and the locking pin 106 is tightened to fix it. During the sliding process, the limiting slider 105 moves along the limiting slide groove 104 to ensure that the movable slide rail 103 is always parallel to the fixed slide rail 102 during the sliding process. The hydraulic valve block is placed on the worktable 101 and pushed forward with the front and back close to each other. The two sides of the hydraulic valve block are restricted by the fixed slide rail 102 and the movable slide rail 103 to ensure that the hydraulic valve block moves forward horizontally.

[0030] In this embodiment: the main unit includes a lifting assembly for adjusting the height of the laser marking by moving up and down. A linear guide rail 205 is mounted on the lifting assembly, a linear motor 206 is mounted on the linear guide rail 205, a translation frame 207 is mounted on the linear motor 206, and a laser marking head 208 is mounted on the translation frame 207. The lifting assembly includes a support frame 201 erected behind the worktable 101, a lead screw 202 is provided in the support frame 201, a lifting motor 203 is provided at the top of the lead screw 202, and a screw thread is provided in the middle of the lead screw 202. A cantilever frame 204 is connected; the cantilever frame 204 is set horizontally and its length is at least three-quarters of the width of the workbench 101; the support frame 201 supports the lifting motor 203 to drive the lead screw 202 to rotate, which pushes the cantilever frame 204 to move the translation frame 207 and the laser marking head 208 up and down to adjust the marking height. The laser marking head 208 performs marking operations on the hydraulic valve block. At the same time, the linear motor 206 drives the laser marking head 208 to move back and forth along the linear guide rail 205 through the translation frame 207 to ensure the smooth operation of marking.

[0031] In this embodiment: the driving device includes a fixed frame 301, a lifting frame 302 is disposed in the middle of the fixed frame 301, an active roller 303 is installed in the middle of the lifting frame 302, a servo motor 304 is disposed on one side of the active roller 303, and an adjustment component for adjusting the rotating push height is disposed between the lifting frame 302 and the fixed frame 301; the adjustment component includes an adjustment screw 306 screwed to the middle of the fixed frame 301, two limiting slide rods 305 are symmetrically disposed on both sides of the adjustment screw 306, the limiting slide rods 305 are slidably connected to the fixed frame 301, and the adjustment screw 306 is rotatably connected to the lifting frame 302. The limiting slide bar 305 and the lifting frame 302 are bolted together; the surface of the active roller 303 is covered with an anti-slip rubber sleeve; the adjusting screw 306 is rotated according to the height of the hydraulic valve block. Under the support of the fixed frame 301, the adjusting screw 306 pushes the lifting frame 302 to move up and down under the guidance of the limiting slide bar 305, so that the active roller 303 is pressed on the top surface of the hydraulic valve block. When marking, the hydraulic valve block is placed on the worktable 101, and pushed forward under the active roller 303 with the front and back tightly pressed together. The lifting frame 302 supports the servo motor 304 to drive the active roller 303 to rotate, and stably pushes the hydraulic valve block forward.

[0032] Working principle: In the preparation stage, the movable slide rail 103 is slid on the worktable 101 according to the length of the hydraulic valve block, and the locking pin 106 is tightened to fix it. During the sliding process, the limit slider 105 moves along the limit slide groove 104 to ensure that the movable slide rail 103 is always parallel to the fixed slide rail 102 during the sliding process. Then, the adjusting screw 306 is rotated according to the height of the hydraulic valve block. Under the support of the fixed frame 301, the adjusting screw 306 pushes the lifting frame 302 to move up and down under the guidance of the limit slide rail 305, so that the active roller 303 is pressed on the top surface of the hydraulic valve block. Then, the support frame 201 supports the lifting motor 203 to drive the screw 202 to rotate, which pushes the cantilever frame 204 to drive the translation frame 207 and the laser marking head 208 to move up and down to adjust the marking height and complete the adjustment.

[0033] During marking, the hydraulic valve block is placed on the worktable 101 and pushed forward under the drive roller 303, with the front and back tightly pressed together. The lifting frame 302 supports the servo motor 304 to drive the drive roller 303 to rotate, stably pushing the hydraulic valve block forward. The two sides of the hydraulic valve block are restricted by the fixed slide rail 102 and the movable slide rail 103 to ensure that the hydraulic valve block moves forward horizontally. At the same time, the next hydraulic valve block pushes the previous hydraulic valve block forward to the area under the laser marking head 208. Then, the laser marking head 208 performs marking operations on the hydraulic valve block. Meanwhile, the linear motor 206 drives the laser marking head 208 to move back and forth along the linear guide rail 205 through the translation frame 207 to ensure smooth marking.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A laser marking apparatus for a hydraulic valve block comprising a main device for up-and-down lifting and reciprocating movement for laser marking, characterized by: It also includes a table device for limiting positioning and guiding the hydraulic valve block to push forward in close contact with the front and rear. The main unit is mounted on the table device, and the feeding side of the main unit is provided with a drive device for rotating and pushing the hydraulic valve block forward. The table device includes a workbench (101), a fixed slide rail (102) is provided on the workbench (101), a movable slide rail (103) is provided parallel to the front of the fixed slide rail (102), locking pins (106) are respectively installed at both ends of the movable slide rail (103), and guide components for restricting parallel sliding are respectively provided at both ends of the movable slide rail (103). The main unit includes a lifting assembly for adjusting the height of laser marking by moving up and down. A linear guide rail (205) is installed on the lifting assembly. A linear motor (206) is installed on the linear guide rail (205). A translation frame (207) is installed on the linear motor (206). A laser marking head (208) is installed on the translation frame (207). The driving device includes a fixed frame (301), a lifting frame (302) is arranged in the middle of the fixed frame (301), an active roller (303) is installed in the middle of the lifting frame (302), a servo motor (304) is arranged on one side of the active roller (303), and an adjustment component for adjusting the rotating push height is arranged between the lifting frame (302) and the fixed frame (301).

2. The laser marking apparatus for a hydraulic valve block according to claim 1, characterized in that: The lifting assembly includes a support frame (201) erected behind the workbench (101), a lead screw (202) is provided in the support frame (201), a lifting motor (203) is provided at the top of the lead screw (202), and a cantilever frame (204) is screwed to the middle of the lead screw (202).

3. The laser marking apparatus for a hydraulic valve block according to claim 2, characterized in that: The cantilever (204) is horizontally positioned and its length is at least three-quarters the width of the workbench (101).

4. The laser marking apparatus for a hydraulic valve block according to claim 1, characterized in that: The guiding assembly includes a limiting slide groove (104) horizontally arranged on both sides of the worktable (101) and two limiting sliders (105) symmetrically installed at the bottom of both ends of the movable slide rail (103).

5. A laser marking apparatus for a hydraulic valve block as defined in claim 4, characterized in that: The fixed slide rail (102) and the movable slide rail (103) have the same height, and the width of the movable slide rail (103) is 5 times the width of the fixed slide rail (102).

6. The laser marking apparatus for a hydraulic valve block according to claim 1, characterized in that: The adjustment assembly includes an adjustment screw (306) screwed into the middle of the fixed frame (301), and two limiting slide rods (305) symmetrically arranged on both sides of the adjustment screw (306). The limiting slide rods (305) are slidably connected to the fixed frame (301), the adjustment screw (306) is rotatably connected to the lifting frame (302), and the limiting slide rods (305) are bolted to the lifting frame (302).

7. A laser marking apparatus for a hydraulic valve block as defined in claim 6, characterized in that: The surface of the drive roller (303) is covered with an anti-slip rubber sleeve.

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