Auxiliary trolley system for small laser cleaning and convenient machining

Abstract

The utility model discloses an auxiliary trolley system for small laser cleaning and convenient machining. The auxiliary trolley system comprises a trolley frame. Directional wheels and universal wheels are arranged below the bottom of the trolley frame; a transmission shaft is connected between the left and right directional wheels; a mounting seat is arranged on a bottom side bracket of the trolley frame, and a driver is mounted on one inner side of the mounting seat; a tail end shaft of the driving system is connected with a gear; the gear is in matched transmission connection with a gear on a transmission shaft through a transmission mechanism; small laser processing head positioning devices are arranged at the upper ends of left and right brackets of the trolley frame; the upper end of a rear-end bracket of the trolley frame is connected with a trolley grip; a brake device and an electronic display screen are arranged at the upper end of the trolley grip. By the adoption of the improved mechanism, the focal length and the speed are stably adjusted in the cleaning process, and then the cleaning quality is remarkably improved. And meanwhile, for cleaning of a large plane, the problem of fatigue of personnel caused by long-time handheld work can be remarkably solved by using the trolley to bear the small laser cleaning head.

Description

Technical Field

[0001] The utility model relates to an auxiliary trolley system for convenient processing of small laser cleaning, belonging to the technical field of small laser cleaning equipment. Background Art

[0002] Small laser cleaning equipment is a new surface treatment technology. It uses a laser beam to remove dirt, paint, rust or other unwanted coatings on the material surface. Due to its good environmental protection, thorough cleaning, high efficiency, easy operation and other advantages, it is widely used in production manufacturing. At present, the use of small laser cleaning equipment mainly relies on operators to hold a small laser cleaning head by hand to carry out production operations. However, during the operation process, since manual operation cannot ensure the stability of the focal length and speed, it often causes poor processing quality or multiple reworks, resulting in workpiece damage. Moreover, long-term hand-held work causes physical fatigue, which will reduce work efficiency and safety awareness, resulting in workpiece damage and personal insecurity. Therefore, other methods are needed to change this situation. For the cleaning of large flat surfaces, using a trolley to carry a small laser cleaning head can significantly improve the problem of operator fatigue caused by long-term hand-held work, and the stability of the focal length and speed during the cleaning process can significantly improve the cleaning quality problem. Summary of the Utility Model

[0003] Aiming at the problems existing in the above-mentioned prior art, the utility model provides an auxiliary trolley system for convenient processing of small laser cleaning, so as to solve the above technical problems.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is: an auxiliary trolley system for convenient processing of small laser cleaning, including a trolley frame; directional wheels and universal wheels are arranged below the bottom of the trolley frame; the universal wheels are arranged at the front-end position of the bottom of the trolley frame; the left and right two directional wheels are arranged at the rear-end position of the bottom of the trolley frame, and a transmission shaft is connected between the left and right two directional wheels;

[0005] An installation seat is arranged on the side bracket at the bottom of the trolley frame, and a rotary cylinder is installed on the inner side of the installation seat; a gear is connected to the end shaft of the rotary cylinder; the gear is in transmission connection with the gear on the transmission shaft through a transmission mechanism;

[0006] Further, the lower end telescopic assembly includes columns on the left and right sides and a cross beam located between the columns; the vertical bending parts on the left and right sides of the cross beam extend into the central openings of the columns; a plurality of openings are uniformly arranged on the side walls of the columns, and the vertical bending parts located inside the columns are locked by screws

[0007] Furthermore, the small laser processing head positioning device includes a small laser head fixing plate, a laser head fixing plate buckle and a focusing telescopic rod assembly; the small laser processing head is fixed on the small laser head fixing plate; the small laser head fixing plate is fixed to the focusing telescopic rod assembly through the laser fixing plate buckle; the focusing telescopic rod assembly includes a U-shaped rod and a support rod located on the cross beam of the lower end telescopic assembly; the interior of the support rod is hollow for the two ends of the U-shaped rod to extend into, the U-shaped rod extends into the support rod and the U-shaped rod is fixed in the support rod through the cooperation of the side screws and the holes.

[0008] Furthermore, the rotating cylinder uses gas as a power source, and controls the pressure regulating valve at the rotating cylinder through an electronic display screen to adjust the gas volume and thus control the rotation speed of the fan blades in the cylinder.

[0009] Furthermore, the driver is motor-driven, using electricity as a power source, and controls the motor rotation speed through an electronic display screen.

[0010] Furthermore, it also includes a trolley speed sensor; the trolley speed sensor feeds back the trolley speed to the control unit in the electronic display screen, and the control unit adjusts the intake flow rate according to the required trolley travel speed based on the fed back trolley speed, so that the trolley speed can meet the required speed to achieve control of the trolley running speed.

[0011] Furthermore, the braking device is controlled by an electronic control program, and when a person takes a rest or pauses work, the trolley stops by pressing a stop button. The stop button is connected to a small laser cleaning head, and can also automatically stop the laser light emitting function when braking.

[0012] The beneficial effects of the utility model are:

[0013] 1) The device is equipped with a small laser cleaning head positioning device, which can easily realize the installation and removal of the small laser cleaning head. The device can realize the fixation and angle rotation of the small laser processing head. There are angle scales on the flange, which can be used to accurately rotate the processing angle of the laser head. The height adjustment of the small laser cleaning head positioning device can adopt a telescopic structure. By lengthening and shortening the telescopic rod, the working distance of the cleaning head with different focal lengths can be achieved to be suitable for a variety of different processing conditions. This device can easily solve the problem of unstable processing quality or multiple rework of the workpiece caused by the change of focal length during the processing process.

[0014] 2) By setting components such as a driver, the driver can be connected to the trolley frame through a fixed block. A gear is provided at the end of the driver, and the gear is connected to the gear on the transmission shaft through a transmission mechanism. The rotation of the wheel is achieved through the transmission of the gears, thereby driving the trolley to move. By controlling the driver, the linear speed of the trolley can be ultimately controlled. The rotation speed of the driver can control the rotation speed of the gear. Through the calculation of the gear ratio, gear diameter, and wheel diameter, it is ultimately converted into the traveling speed of the trolley.

[0015] With this device, it is easy to solve the problems of workpiece damage and processing quality caused by unstable processing speed during manual operation by the operator. Since this trolley uses a driver as the power source, the operator consumes less manpower during use and will not cause safety accident problems due to work fatigue. The driver of the present invention can be a rotary cylinder, a motor, or manual power. Brief Description of the Drawings

[0016] Figure 1 is a structural schematic diagram of the present utility model;

[0017] Figure 2 is a front view of the structural schematic diagram of the present utility model;

[0018] Figure 3 is a structural schematic diagram of the small laser cleaning head positioning device of the present utility model;

[0019] Figure 4 is an exploded view of the structural schematic diagram of the small laser cleaning head positioning device of the present utility model

[0020] Figure 5 is a schematic diagram of the control principle of the rotary cylinder of the present utility model;

[0021] Figure 6 is a schematic diagram of the working principle of the trolley of the present utility model.

[0022] In the figure: 1, directional wheel; 2, universal wheel; 3, trolley frame; 4, rotary cylinder; 5, braking device; 6, trolley grip; 7, transmission gear; 8, transmission mechanism; 9, small laser processing head positioning device; 10, electronic display screen; 11, small laser head fixing plate; 12, laser head fixing plate buckle; 13, focusing telescopic rod assembly; 14, lower end telescopic assembly. Detailed Description of the Preferred Embodiment

[0023] To make the objectives, technical solutions, and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are only used to explain the present utility model and are not intended to limit the scope of the present utility model.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this utility model belongs. The terms used in the description of this utility model herein are for the purpose of describing specific embodiments only and are not intended to limit the utility model.

[0025] As Figure 1 、 Figure 2 shown, in this Embodiment 1, the auxiliary trolley includes a directional wheel 1 and a universal wheel 2 that support the movement of the trolley, a trolley frame 3, a rotary cylinder 4, a braking device 5, a trolley grip 6, a transmission gear 7, a transmission mechanism 8, a small laser processing head positioning device 9, an electronic display screen 10, and a lower end telescopic assembly 14.

[0026] The directional wheel 1 and the universal wheel 2 are provided below the bottom of the trolley frame 3; the universal wheel 2 is provided at the front end position of the bottom of the trolley frame 3; the left and right directional wheels 1 are provided at the rear end position of the bottom of the trolley frame 3, and a transmission shaft is connected between the left and right directional wheels 1.

[0027] The upper ends of the left and right brackets of the trolley frame 3 are provided with a lower end telescopic assembly 14; the lower end telescopic assembly 14 is connected with a small laser processing head positioning device 9; the small laser processing head positioning device 9 is used for fixing and angle rotation of the small laser processing head.

[0028] The upper end of the rear bracket of the trolley frame 3 is connected with a trolley grip 6; the upper end of the trolley grip 6 is provided with a braking device 5 and an electronic display screen 10; the braking device 5 is used for manually operating to stop the trolley; the electronic display screen is used for controlling laser parameters, trolley moving speed, trolley commutation, and controlling the trolley electronic brake.

[0029] The lower end telescopic assembly 14 includes columns on both left and right sides and a cross beam located between the columns; the vertical bending parts on both left and right sides of the cross beam extend into the central openings of the columns; a plurality of openings are evenly arranged on the side walls of the columns, and the vertical bending parts located inside the columns are locked by screws.

[0030] Referring to Figure 3 and Figure 4 , the small laser processing head positioning device 9 includes a small laser head fixing plate 11, a laser head fixing plate buckle 12, and a focusing telescopic rod assembly 13; the small laser processing head is fixed on the small laser head fixing plate 11; the small laser head fixing plate 11 is fixed on the focusing telescopic rod assembly 13 through the laser fixing plate buckle 12; the focusing telescopic rod assembly 13 includes a U-shaped rod and a support rod located on the cross beam of the lower end telescopic assembly 14; the inside of the support rod is hollow for the two ends of the U-shaped rod to extend into, and the U-shaped rod extends into the support rod and is fixed in the support rod by the cooperation of the side screws and the holes.

[0031] The small laser processing head is fixed on the small laser head fixing plate 11. The small laser head fixing plate 11 is fixed on the component 13 through the laser fixing plate buckle 12. The buckle and the fixing plate are connected by screws. After adjusting the angle of the laser head, the fixing plate is locked by screws. At this time, the laser head will maintain this angle and no longer rotate. After the focusing telescopic rod adjusts the height, the fixing rod is locked by screws. At this time, the cleaning distance maintains a fixed height.

[0032] Refer to Figure 5 , the schematic diagram of the control principle of the preferred rotary cylinder in this embodiment. The rotary cylinder 4 uses gas as the power source. It controls the rotation speed of the fan blade in the cylinder by adjusting the gas size through the pressure regulating valve at the rotary cylinder controlled by the electronic display screen 10.

[0033] In this preferred embodiment, the driver is motor-driven, using electricity as the power source, and its rotation speed is controlled by the electronic display screen.

[0034] In this preferred embodiment, it further includes a trolley speed sensor; the trolley speed sensor feeds back the trolley speed to the control unit in the electronic display screen. The control unit adjusts the intake air flow according to the fed-back trolley speed and the required trolley traveling speed, so that the speed of the trolley can meet the required speed to achieve the control of the trolley running speed.

[0035] Refer to Figure 6 The schematic diagram of the working principle of the trolley. The small laser cleaning head is clamped on the clamping mechanism that can adjust the height of the trolley system. The trolley frame 3 is used to support the entire trolley and the connection with other components. The cross beam below the trolley frame 3 is connected to the transmission shaft of the trolley. The wheels installed at both ends of the transmission shaft provide the main support for the moving direction of the trolley. The wheels connected to the front end of the trolley frame provide support for the trolley to turn. Through the mutual cooperation of the front and rear wheels, the trolley can achieve normal straight walking and turning operations in the cleaning area and is convenient to control during the movement. The laser light output is usually controlled by an independent electronic control circuit, which can receive signals from the electronic control program. When the stop button is pressed, the electronic control program will send a signal to the laser control circuit at the same time, instructing it to stop the laser output. This can be achieved through a relay or a solid-state switch to ensure that the laser automatically turns off when the trolley stops.

[0036] In this embodiment, the brake device 5 is preferably controlled by an electronic control program, which stops the trolley by pressing the stop button when the personnel are resting or pausing work. The stop button is connected to the small laser cleaning head, and can also realize the automatic stop of the laser light function when braking. The above functions can be realized to avoid the damage to the workpiece caused by the trolley being stopped but the laser equipment is still working. The core of the brake device is the electronic control program, which is responsible for receiving and processing instructions from the operator. The program can be implemented by a microcontroller (such as Arduino, Raspberry Pi, etc.), and can respond quickly when receiving a stop signal. The stop button is a physical switch, usually connected to the control system of the trolley. When the operator presses the stop button when the personnel are resting or pausing work, the stop signal will be sent to the electronic control program. Once the electronic control program receives the stop signal, it will instruct the drive system (such as a motor or servo system) of the trolley to stop moving immediately. In this embodiment, a universal wheel used for steering can also be replaced with two wheels, and the differential speed between the two wheels is electrically controlled for steering.

[0037] In this embodiment, the rotating gas can be replaced by a motor drive, and the speed measured by the speed sensor is used to control the motor to ensure that the car can reach the required speed.

[0038] Embodiment 2, hand push is the driving force. When the operator pushes the trolley at a speed higher than the required speed, the controller can be used to control the brake to reduce the speed of the trolley. When the staff pushes the trolley, the trolley brake control will naturally control the speed of the trolley at an appropriate walking speed. The trolley handle 6 is located above the trolley frame 3, and is mainly used by the operator to control the steering of the trolley during the processing process (the differential speed of the wheels can also be used to control the steering. At this time, the trolley handle is to facilitate the operator to push the trolley when there is no power). The trolley handle 6 conforms to the ergonomic design and can be adjusted in height to make it convenient and labor-saving for the operator to hold it by hand. The display screen is located above the trolley handle 6. The electronic display screen 10 mainly has the functions of controlling laser parameters, controlling the moving speed of the trolley, the trolley reversing, and controlling the electronic braking of the trolley. The trolley can also be equipped with a three-position five-way solenoid valve to support operations such as trolley reversing.

[0039] In the above embodiment, in order to increase the integration of equipment operation and use, the cleaning area can be increased in terms of use, and the laser, chiller, smoke purifier, and dust hood are placed on the trolley. The advantage of this structure is that after the above equipment is placed on the trolley, the working distance of the equipment during construction will no longer be affected by the length of the optical fiber, and the parameters of the cleaning equipment can also be set on the display screen of the trolley.

[0040] Place the chiller on the trolley frame 3, place the laser on the chiller, place the fume purifier on the side of the chiller, connect the dust suction hood to the trolley frame 3, and the opening of the dust suction hood and the laser cleaning head are in the same vertical plane. It is hereby stated that the actual size and spatial layout of this patent can be changed according to the size of the equipment to be carried. Open a hole under the sheet metal of the trolley frame 3 and connect the dust suction pipe to the dust suction hood through the trolley chassis.

[0041] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, or improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An auxiliary trolley system for convenient processing of small laser cleaning, characterized in that, It includes a trolley frame (3); a directional wheel (1) and a universal wheel (2) are arranged below the bottom of the trolley frame (3); the universal wheel (2) is arranged at the front-end position of the bottom of the trolley frame (3); the left and right directional wheels (1) are arranged at the rear-end position of the bottom of the trolley frame (3), and a transmission shaft is connected between the left and right directional wheels (1). An installation seat is arranged on the side bracket at the bottom of the trolley frame (3), and a driver (4) is installed on the inner side of the installation seat; a transmission gear (7) is connected to the end shaft of the driver (4); the transmission gear (7) is in transmission connection with the gear on the transmission shaft through a transmission mechanism (8). Lower telescopic components (14) are arranged at the upper ends of the left and right brackets of the trolley frame (3); a small laser processing head positioning device (9) is connected to the lower telescopic components (14); the small laser processing head positioning device (9) is used for fixing and angle rotation of the small laser processing head. A trolley grip (6) is connected to the upper end of the rear bracket of the trolley frame (3); a brake device (5) and an electronic display screen (10) are arranged at the upper end of the trolley grip (6); the brake device (5) is used for manually operating to stop the trolley; the electronic display screen is used for controlling laser parameters, trolley moving speed, trolley commutation and controlling the electronic brake of the trolley.

2. The auxiliary trolley system for convenient processing of small laser cleaning according to claim 1, characterized in that, The lower telescopic component (14) includes columns on the left and right sides and a cross beam located between the columns; the vertical bending parts on the left and right sides of the cross beam extend into the central openings of the columns; a plurality of openings are evenly arranged on the side walls of the columns, and the vertical bending parts located inside the columns are locked by screws.

3. The auxiliary trolley system for convenient processing of small laser cleaning according to claim 1, wherein, The small laser processing head positioning device (9) includes a small laser head fixing plate (11), a laser head fixing plate buckle (12) and a focusing telescopic rod assembly (13); the small laser processing head is fixed on the small laser head fixing plate (11); the small laser head fixing plate (11) is fixed on the focusing telescopic rod assembly (13) through the laser fixing plate buckle (12); the focusing telescopic rod assembly (13) includes a U-shaped rod and a support rod located on the cross beam of the lower telescopic component (14); the inside of the support rod is hollow for the two ends of the U-shaped rod to extend into, and the U-shaped rod extends into the support rod and is fixed in the support rod by the cooperation of the side screws and the holes.

4. The auxiliary trolley system for convenient processing of small laser cleaning according to claim 1, characterized in that, The driver (4) is a rotary cylinder, and the rotary cylinder uses gas as the power source. The gas pressure regulating valve at the rotary cylinder is controlled through the electronic display screen (10) to adjust the gas size, thereby controlling the rotation speed of the fan blade in the cylinder.

5. The auxiliary trolley system for convenient processing of small laser cleaning according to claim 1, characterized in that, The driver (4) is motor-driven, using electricity as the power source, and its rotation speed is controlled through the electronic display screen (10).

6. The auxiliary trolley system for convenient processing of small laser cleaning according to claim 1, characterized in that, It also includes a trolley speed sensor; the trolley speed sensor feeds back the trolley speed to the control unit in the electronic display screen. The control unit adjusts the intake air flow according to the fed-back trolley speed and the required trolley traveling speed, so that the speed of the trolley can meet the required speed to achieve the control of the trolley running speed.

7. An auxiliary trolley system for convenient processing of small laser cleaning according to claim 1, characterized in that, The braking device (5) is controlled by an electronic control program. When the personnel take a rest or pause work, pressing the stop button makes the trolley stop. The stop button is connected to the small laser cleaning head, and it can also achieve the function of automatically stopping the laser light output when braking.

8. The auxiliary trolley system for convenient processing of small laser cleaning according to claim 1, characterized in that, The driver is driven by hand-pushing. When the operator pushes the trolley at a speed higher than the required speed, the controller can be used to control the brake to reduce the speed of the trolley, and the brake control can control the speed of the trolley at an appropriate walking speed.

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