Laser marking equipment for hydraulic valve block

Abstract

The utility model provides laser marking equipment for a hydraulic valve block, which relates to the technical field of hydraulic valve block processing and comprises a chain plate conveying belt, the chain plate conveying belt comprises a plurality of chain plates, six-degree-of-freedom mechanical arms are matched with two ends of the chain plate conveying belt, baffles are symmetrically arranged on two sides of the chain plate conveying belt, and the chain plates are arranged on the chain plate conveying belt. Each chain plate is provided with a partition plate used for making contact with the side face of the hydraulic valve block, the baffle is provided with an installation frame and symmetrically-distributed clamping assemblies, the installation frame is provided with a cross-shaped sliding table, the cross-shaped sliding table is provided with a laser marking head, and the laser marking head is located above the clamping assemblies. According to the device, automatic clamping and limiting can be achieved in the laser marking process of the hydraulic valve block, at the moment, position deviation of the hydraulic valve block cannot occur in the machining process, manual intervention is not needed after follow-up machining is completed, discharging and replacing are achieved, the labor intensity of manual operation is greatly reduced, and the working efficiency is improved. And meanwhile, the continuity of laser marking is improved by intermittently conveying the hydraulic valve blocks on the assembly line.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic valve block processing, in particular to laser marking equipment for hydraulic valve blocks. Background Art

[0002] Laser marking is a coding method that uses high-energy-density lasers to locally irradiate the workpiece, causing the surface material to vaporize or undergo a chemical reaction that causes a color change, thereby leaving a permanent mark.

[0003] A hydraulic valve block is a hydraulic component mounting seat. The hydraulic components are connected to the front or side surfaces of the hydraulic valve block (generally, the bottom surface or one of the surfaces is kept as the mounting and fixing surface) through fasteners. The oil holes are drilled vertically and horizontally inside the valve block according to the passage requirements of the hydraulic system schematic diagram. In other words, the hydraulic valve block is a small circuit that brings together various valves that can be used in principle through the oil holes on the valve block. Since there are dozens or hundreds of oil ports on the valve block, the oil holes are generally provided with marks corresponding to the schematic diagram for debugging, query and maintenance. At present, during the processing of the hydraulic valve block, it is necessary to mark its surface and mark the model and other parameters.

[0004] Existing laser marking equipment cannot effectively fix and adjust parts when faced with work order requirements for different parts, has a small scope of application, and has caused certain adverse effects in actual use.

[0005] Announcement No. CN215880353U proposes a clamping auxiliary laser marking device, which can adjust the distance between the clamping plate and the telescopic clamping block assembly to adapt to parts of different sizes during laser marking, and can effectively fix the parts to be marked. It has a wide range of applications and avoids the impact of part offset during marking on the accuracy of marking, thereby ensuring the quality of part marking. However, the device requires manual intervention to unload the workpiece after the laser marking is completed, and the continuity of laser marking needs to be improved. Utility Model Content

[0006] The purpose of the utility model is to solve the problems raised in the above background technology, and then propose a laser marking device for a hydraulic valve block.

[0007] The technical solution adopted by the utility model to solve its technical problems is:

[0008] A laser marking device for a hydraulic valve block comprises a chain conveyor belt, the chain conveyor belt comprises a plurality of chain plates, both ends of the chain conveyor belt are equipped with six-degree-of-freedom mechanical arms, baffles are symmetrically arranged on both sides of the chain conveyor belt, each chain plate is provided with a partition plate for contacting the side of the hydraulic valve block, a mounting frame and symmetrically distributed clamping components are arranged on the baffle, a cross slide is arranged on the mounting frame, a laser marking head is arranged on the cross slide, and the laser marking head is located above the clamping component.

[0009] This device can realize automatic clamping and limiting in the process of laser marking the hydraulic valve block. At this time, the hydraulic valve block will not be offset during the processing, and no manual intervention is required to realize unloading and replacement after the subsequent processing is completed. The labor intensity of manual operation is greatly reduced. At the same time, the intermittent transmission of the hydraulic valve block on the assembly line improves the continuity of laser marking.

[0010] Furthermore, the clamping assembly includes an electric push rod and a clamping plate. The electric push rod is symmetrically arranged on the baffle plate, and the electric push rod is connected to two clamping plates that are arranged opposite to each other and move synchronously.

[0011] The above solution can accurately define the position of the hydraulic valve block during the laser marking process by means of the clamping assembly, and the hydraulic valve block will not move.

[0012] Furthermore, a friction layer is provided on the clamping plate.

[0013] The above solution can further increase the friction between the clamping plate and the hydraulic valve block through the friction layer, and the fixing effect is better.

[0014] Furthermore, an infrared receiver is provided on the edge of the upper surface of one of the clamping plates, and an infrared transmitter is provided on the side wall of each partition plate. The infrared transmitter and the infrared receiver are at the same height and cooperate with each other to accurately define the transmission position of the hydraulic valve block.

[0015] The above scheme can realize accurate intermittent start and stop of the chain conveyor belt through the cooperation of the infrared transmitter and the infrared receiver, so that the transmission position of the hydraulic valve block is more accurate.

[0016] Furthermore, an air purifier and a negative pressure fan are arranged on the cross slide at one side of the laser marking head, and the negative pressure fan is connected to the air purifier.

[0017] The above scheme can absorb the harmful gases generated during the laser marking process through the negative pressure fan, and then purify the harmful gases to reduce the content of harmful gases in the workshop and ensure the personal safety of workers.

[0018] Furthermore, the width of the clamping plate is adapted to the distance between two adjacent partition plates.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] Compared with the prior art, the device can realize automatic clamping and limiting through the clamping assembly during the laser marking process of the hydraulic valve block. At this time, the hydraulic valve block will not be positionally shifted during the laser marking process, and no manual intervention is required to realize unloading and replacement after the subsequent processing is completed. The labor intensity of manual operation is greatly reduced. At the same time, the intermittent transmission of the hydraulic valve block on the assembly line improves the continuity of laser marking. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the partition plate installation;

[0023] Figure 3 This is a schematic diagram of friction layer installation;

[0024] Figure 4 for Figure 2 A partial enlarged view of the label A;

[0025] Figure 5 for Figure 1 A partial enlarged view of the label B;

[0026] Reference numerals:

[0027] 1. Chain conveyor belt; 11. Baffle; 12. Chain plate; 13. Partition plate; 14. Electric push rod; 15. Clamping plate; 16. Infrared transmitter; 17. Infrared receiver; 18. Friction layer; 2. Mounting frame; 21. Cross slide; 22. Laser marking head; 3. Air purifier; 4. Negative pressure fan. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. The utility model is further described in combination with the drawings and embodiments:

[0029] like Figures 1 to 5As shown, a laser marking device for a hydraulic valve block includes a chain conveyor belt 1, the chain conveyor belt 1 includes a plurality of chain plates 12, both ends of the chain conveyor belt 1 are equipped with a six-degree-of-freedom mechanical arm, the six-degree-of-freedom mechanical arm is provided with an electromagnetic plate, the six-degree-of-freedom mechanical arm is not shown in the figure, and it adopts the existing technology without improvement, baffles 11 are symmetrically arranged on both sides of the chain conveyor belt 1, each chain plate 12 is provided with a partition plate 13 for contacting the side of the hydraulic valve block, the baffle 11 is provided with a mounting frame 2 and symmetrically distributed clamping components, the mounting frame 2 is provided with a cross slide 21, the cross slide 21 is driven by a screw structure, the screw structure is shown in the figure without numbering, and a laser marking head 22 is arranged on the cross slide 21, and the laser marking head 22 is located above the clamping assembly.

[0030] Specifically, the clamping assembly includes an electric push rod 14 and a clamping plate 15. The electric push rod 14 is symmetrically arranged on the baffle 11. The electric push rod 14 is connected to two clamping plates 15 that are arranged opposite to each other and move synchronously. The width of the clamping plate 15 is adapted to the distance between two adjacent partition plates 13. The clamping assembly can be used to accurately define the position of the hydraulic valve block during the laser marking process, and the hydraulic valve block will not move in position.

[0031] Further optimization of the above embodiment, such as Figure 3 As shown, a friction layer 18 is provided on the clamping plate 15; the friction layer 18 is a rubber layer, and the friction layer 18 can further increase the friction between the clamping plate 15 and the hydraulic valve block, and the fixing effect is better.

[0032] It should be noted that the chain conveyor belt 1, the six-degree-of-freedom robot arm, the electromagnetic plate, the electric push rod 14, the cross slide 21 and the laser marking head 22 are all electrically connected to the controller, which is not shown in the figure.

[0033] The workflow of this utility model:

[0034] First, a hydraulic valve block is placed on each chain plate 12 in turn through the six-degree-of-freedom mechanical arm at the initial end of the chain plate conveyor belt 1 in cooperation with the electromagnetic plate. The six-degree-of-freedom mechanical arm and the electromagnetic plate are not shown in the figure. The sizes of the hydraulic valve blocks can be the same or different and are not shown in the figure. During the placement process, one of the fixed sides of the hydraulic valve block is made parallel to and fits with the partition plate 13. The chain plate conveyor belt 1 adopts intermittent operation, and then the hydraulic valve block is gradually transported to the mounting frame 2 for processing along with the chain plate conveyor belt 1. A uniform speed is maintained during the transportation process and the side of the hydraulic valve block can always fit with the partition plate 13. When one of the hydraulic valve blocks moves to the specified area below the mounting frame 2, The controller controls the clamping assembly to move synchronously toward the center to center the position of the hydraulic valve block. At this time, the clamping plate does not interfere with the partition plate. Then the controller controls the cross slide 21 to drive the laser marking head 22 to move and find the position to complete the marking process of the model parameters on the hydraulic valve block. After the marking is completed, the clamping is released immediately. Then the hydraulic valve block after the processing is moved away from under the laser marking head 22, and then a new hydraulic valve block moves again to under the mounting frame 2 to start a new round of clamping and marking process. After the laser marking is completed, the hydraulic valve block moves to the tail end with the chain conveyor belt 1 and is then adsorbed by another six-degree-of-freedom robot arm in cooperation with the electromagnetic plate to realize unloading and storage.

[0035] Compared with the existing technology, the device can realize automatic clamping and limiting during the laser marking of the hydraulic valve block. At this time, the hydraulic valve block will not be positionally shifted during the processing process, and no manual intervention is required to realize unloading and replacement after the subsequent processing is completed. The labor intensity of manual operation is greatly reduced. At the same time, the intermittent transmission of the hydraulic valve block on the assembly line improves the continuity of laser marking.

[0036] In some embodiments, Figures 1 to 4 As shown, an infrared receiver 17 is provided on the edge of the upper surface of one of the clamping plates 15, and an infrared transmitter 16 is provided on the side wall of each partition plate 13. The infrared transmitter 16 and the infrared receiver 17 are at the same height and cooperate with each other to accurately define the transmission position of the hydraulic valve block; this embodiment can realize the accurate intermittent start and stop of the chain conveyor belt 1 through the cooperation of the infrared transmitter 16 and the infrared receiver 17, so that the transmission position of the hydraulic valve block is more accurate.

[0037] In other embodiments, Figure 1 and Figure 5 As shown, an air purifier 3 and a negative pressure fan 4 are provided on the cross slide 21 on one side of the laser marking head 22, and the negative pressure fan 4 is connected to the air purifier 3; in this embodiment, the negative pressure fan 4 can absorb harmful gases generated during the laser marking process, and then purify the harmful gases to reduce the content of harmful gases in the workshop and ensure the personal safety of workers.

[0038] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the protection required by the utility model. The scope of protection required by the utility model is defined by the attached claims and their equivalents.

Claims

1. A laser marking device for a hydraulic valve block, comprising a chain plate conveyor belt (1), wherein the chain plate conveyor belt (1) comprises a plurality of chain plates (12), characterized in that: Both ends of the chain conveyor belt (1) are equipped with six-degree-of-freedom mechanical arms, baffles (11) are symmetrically arranged on both sides of the chain conveyor belt (1), each chain plate (12) is provided with a partition plate (13) for contacting the side of the hydraulic valve block, a mounting frame (2) and symmetrically distributed clamping components are arranged on the baffle plate (11), a cross slide (21) is arranged on the mounting frame (2), a laser marking head (22) is arranged on the cross slide (21), and the laser marking head (22) is located above the clamping component.

2. The laser marking device for a hydraulic valve block according to claim 1, characterized in that: The clamping assembly comprises an electric push rod (14) and a clamping plate (15). The electric push rod (14) is symmetrically arranged on the baffle (11), and the electric push rod (14) is connected to two clamping plates (15) which are arranged opposite to each other and move synchronously.

3. The laser marking device for a hydraulic valve block according to claim 2, characterized in that: A friction layer (18) is provided on the clamping plate (15).

4. The laser marking device for a hydraulic valve block according to claim 2, characterized in that: An infrared receiver (17) is arranged on the edge of the upper surface of one of the clamping plates (15), and an infrared transmitter (16) is arranged on the side wall of each partition plate (13). The infrared transmitter (16) and the infrared receiver (17) are at the same height and cooperate with each other to accurately define the transmission position of the hydraulic valve block.

5. The laser marking device for a hydraulic valve block according to claim 1, characterized in that: An air purifier (3) and a negative pressure fan (4) located on one side of the laser marking head (22) are arranged on the cross slide (21), and the negative pressure fan (4) is connected to the air purifier (3).

6. The laser marking device for a hydraulic valve block according to claim 2, characterized in that: The width of the clamping plate (15) is adapted to the distance between two adjacent partition plates (13).

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