Laser cleaning equipment

Abstract

The present invention relates to a laser cleaning device, and belongs to the technical field of laser cleaning. The present invention comprises a gun body, a laser output part is arranged at the front end of the gun body, a laser input part is arranged at the rear end of the gun body, a handle is connected to the bottom of the gun body, a mounting plate is vertically connected to the front end of the gun body, the laser output part is arranged on the mounting plate, two baffles are installed on the mounting plate for movement left and right, the two baffles are arranged symmetrically left and right and are both located in front of the laser output part, an adjustment block is installed on the handle for movement forward and backward, a U-shaped bracket is connected to the top of the adjustment block, the U-shaped bracket comprises two side plates symmetrically distributed on the left and right sides of the gun body, two rotating bodies are rotatably installed on the mounting plate, the two side plates are respectively connected to the two rotating bodies through two groups of first transmission components, and the two rotating bodies are respectively connected to the two baffles through two groups of second transmission components. The present invention can reduce the physical burden of the operator and reduce the work intensity when in use.

Description

Technical Field

[0001] The invention relates to the technical field of laser cleaning, and in particular to a laser cleaning device. Background Art

[0002] Laser cleaning is an efficient, precise and environmentally friendly surface cleaning technology that uses a high-energy laser beam to irradiate the surface of an object, causing the pollutants to absorb the laser energy and quickly heat up, thereby achieving the purpose of evaporation, decomposition or peeling. Laser cleaning does not cause mechanical wear to the substrate and is suitable for cleaning precision parts. It is used in many fields such as industry, medicine, and aerospace.

[0003] Laser cleaning gun is a common laser cleaning equipment, which is small in size, easy to carry and operate. Laser cleaning guns in the prior art generally include structures such as a gun body and an optical system. For example, the patent with authorization announcement number CN113798277B discloses a focal length adaptive cleaning gun for insulator laser cleaning. The cleaning gun includes a gun body, an automatic focusing system, a light guide system, a monitoring system and a storage control system, which can effectively solve the problem that the existing insulator cleaning laser guns have difficulty in automatic focusing on irregular curved surfaces.

[0004] However, when the cleaning gun is in use, since the emitted laser beam gradually becomes thicker in the direction away from the gun head, the closer the distance between the cleaning gun and the object to be cleaned, the smaller the area that the laser can cover on the object to be cleaned, and the farther the distance between the cleaning gun and the object to be cleaned, the larger the area that the laser can cover on the object to be cleaned. Therefore, when laser cleaning objects of different sizes, in order to make the area covered by the laser irradiated on the object to be cleaned match the size of the area to be cleaned in the object to be cleaned, it is necessary to continuously drag the cleaning gun to move to adjust the distance between the cleaning gun and the object to be cleaned. For objects to be cleaned placed on the ground, the operator also needs to continuously adjust his body posture to change the distance between the cleaning gun and the object to be cleaned, which will impose a greater burden on the operator's body and increase the work intensity. Summary of the invention

[0005] The present invention provides a laser cleaning device to solve the technical problem that when the laser cleaning gun in the prior art cleans objects of different sizes, it is necessary to constantly change the posture of the laser cleaning gun and drag the laser cleaning gun to adjust the distance between the laser cleaning gun and the object to be cleaned, thereby causing heavy physical burden on the operator and high work intensity.

[0006] In order to solve the above problems, the present invention provides a laser cleaning device adopting the following technical solutions:

[0007] A laser cleaning device comprises a gun body extending forward and backward, a laser output part is arranged at the front end of the gun body, a laser input part is arranged at the rear end of the gun body, a handle is connected to the bottom of the gun body, the handle is located between the laser output part and the laser input part, a mounting plate is vertically connected to the front end of the gun body, the laser output part is arranged on the mounting plate, two baffles are movably installed on the mounting plate, the two baffles are symmetrically arranged and both are located in front of the laser output part, the laser output part can be shielded when the two baffles abut against each other, and the laser output part can be exposed when the two baffles are away from each other;

[0008] An adjustment block is installed on the handle so as to be elastically movable forward and backward, and a U-shaped bracket is connected to the top of the adjustment block. The U-shaped bracket includes two side plates symmetrically distributed on the left and right sides of the gun body. Two rotating bodies with two rotating axes extending forward and backward are rotatably installed on the installation plate. The two rotating bodies are symmetrically arranged on the left and right sides of the gun body. The two side plates are respectively connected to the two rotating bodies through two groups of first transmission components. When the two side plates move forward or backward with the adjustment block, the two rotating bodies are driven to rotate synchronously through the two groups of first transmission components.

[0009] The two rotating bodies are respectively connected to the two baffles through two sets of second transmission components, so that when the two rotating bodies rotate synchronously, the two sets of second transmission components drive the two baffles to move synchronously closer to or farther from each other, thereby reducing or increasing the exposed area of ​​the laser output part.

[0010] By adopting the above technical solution, by pressing the adjustment block and moving it in the front-to-back direction, the U-shaped bracket can be driven to move forward and backward, thereby driving the rotating body to rotate through the first transmission component, and the rotating body then drives the baffle to move left and right through the second transmission component, thereby adjusting the area size of the area exposed by the laser output part. In this way, when the operator uses the laser cleaning equipment to clean objects of different sizes, the operator can adjust the laser cleaning equipment to a fixed position that is comfortable for the operator to hold, and adjust his body to a more comfortable fixed posture, and then adjust the area size of the area irradiated by the laser on the object to be cleaned by pressing the adjustment block to match the size of the object to be cleaned. The adjustment process is easier to operate and the work intensity is lower.

[0011] Furthermore, the first transmission assembly includes a transmission screw and a threaded sleeve extending forward and backward along an axis, the transmission screw is connected to the side plate, the threaded sleeve is coaxially fixed to the rotating body, a thread is provided on the inner side wall of the threaded sleeve, the transmission screw thread is screwed in the threaded sleeve, and when the transmission screw moves forward and backward with the side plate, it drives the threaded sleeve to rotate, thereby driving the rotating body to rotate.

[0012] By adopting the above technical solution, the first transmission assembly includes a transmission screw and a threaded sleeve, which has a simple structure and is more convenient to assemble.

[0013] Furthermore, a first elastic member that can be extended and retracted left and right is connected between the two baffles and the mounting plate. The first elastic member applies an elastic force toward the other baffle on the baffle, so that the two baffles abut against each other. The second transmission assembly includes a pulley, a roller and a transmission belt. The pulley is rotatably assembled on the mounting plate around a rotation axis extending forward and backward. The roller is coaxially fixed to the pulley, and a pull rope is wound around the roller. The rope end of the pull rope is connected to the baffle on the corresponding side. The transmission belt is mounted on the pulley and the rotating body, and the rotating body drives the pulley and the roller to rotate through the transmission belt, thereby winding or releasing the pull rope on the roller, so that the corresponding baffle moves back to or toward the other baffle.

[0014] By adopting the above technical solution, the structure of the second transmission assembly is simpler and the assembly is more convenient. When the adjustment block does not move, the first elastic member is in a natural state, and the two baffles abut against each other to cover the laser output part, so that the baffle can protect the laser output part when the laser cleaning device is not working.

[0015] The cam is hinged with the handle, and the cam is provided with two groups of symmetrical slide groove groups, which are opposite to the side plates on the left and right sides, and the slide groove groups include a horizontal straight groove and an upper inclined groove and a lower inclined groove respectively arranged on the upper and lower sides of the horizontal straight groove, and the upper inclined groove and the lower inclined groove are away from each other from front to back, and the side plates are provided with a slide hole extending up and down and passing through left and right, and the slide hole is provided with three slide blocks arranged at intervals up and down in the upper and lower guide sliding assembly, each slide block is connected to a cylindrical block extending left and right with an axis toward the side of the gun body, and each cylindrical block is respectively inserted in the upper inclined groove, the horizontal straight groove and the lower inclined groove, and the side plates are provided with positioning members for guiding sliding in the up and down directions, and the positioning members can cooperate with the three slide blocks in sequence during the up and down movement to fix the corresponding slide blocks on the side plates; the side plates are connected with a matching plate, and the transmission screw is connected to the side plates through the matching plate, and the matching plate is provided with a strip slide groove extending in the up and down directions, and one end of the transmission screw close to the side plate is vertically connected with a hinge shaft extending left and right, and the hinge shaft is inserted in the strip slide groove.

[0016] By adopting the above technical solution, the gun body is hinged to the handle, and when the positioning piece fixes the slider in the middle on the side plate, the slider in the middle is fixed in up and down position, and the sliders on the upper and lower sides can slide up and down. At this time, pressing the adjustment block will not cause the gun body to rotate and remain in a horizontal state; when the positioning piece fixes the slider at the top on the side plate, the slider at the top is fixed in up and down position, and the two sliders at the bottom can move up and down. At this time, pressing the adjustment block will cause the slider at the top to slide in the upper inclined groove, driving the gun body to rotate downward, so that the laser output part tilts downward; the positioning piece fixes the slider at the bottom on the side plate When the laser is on the upper side, the upper and lower positions of the slider at the bottom are fixed, and the two sliders at the top can move up and down. At this time, the adjusting block is pressed, and the slider at the bottom needs to slide in the lower inclined groove, which will drive the gun body to rotate upward and make the laser output part tilt upward. In this way, the inclination angle of the gun body can be adjusted by pressing the adjusting block. When the area to be cleaned is at a higher or lower position, the position of the positioning piece is adjusted accordingly, and then the adjusting block is pressed to make the laser output part tilt upward or downward. The operator does not need to adjust the angle of the gun body by turning his wrist, and the operator's wrist can be in a comfortable position for operation.

[0017] Furthermore, three groups of clamping block groups are arranged in sequence up and down in the sliding hole, each group of clamping block groups includes two clamping blocks arranged symmetrically front and back, each clamping block can be installed on the side plate for elastic movement front and back, and the three sliders correspond to the three groups of clamping block groups one by one, and each slider is located between the two clamping blocks in the corresponding clamping block group. The positioning member includes a positioning adjustment plate and two positioning sliders connected to the positioning adjustment plate and arranged at intervals front and back, the two positioning sliders are respectively arranged on the front and rear sides of the clamping block group and are guided and slidably assembled on the side plate up and down, the inner spacing dimension of the two positioning sliders is smaller than the outer spacing dimension of the two clamping blocks in the clamping block group in the state without external force, and when the two positioning sliders move to the outside of any clamping block group, they can squeeze the two clamping blocks in the clamping block group close to each other and clamp the corresponding slider, and the upper and lower ends of the side of each clamping block facing away from the corresponding slider are provided with transition arc surfaces extending left and right of the axis, so that the positioning slider can reciprocate between any two adjacent clamping blocks up and down.

[0018] By adopting the above technical solution, the two positioning sliders in the positioning member can be moved up and down by sliding the positioning member up and down, so that the two positioning sliders can be stuck on the outside of different clamping block groups. When the two positioning sliders move to the outside of the clamping block group, the two clamping blocks in the clamping block group are pushed closer to each other, thereby clamping the corresponding sliders and fixing the sliders on the side plate. The adjustment method is simple. By setting a transition arc surface, the positioning slider can slide along the transition arc surface to the outside of another clamping block, and the up and down movement of the positioning slider is smoother.

[0019] Furthermore, a plurality of limit teeth are arranged at intervals up and down on one side of the clamping block facing the corresponding slider, and a plurality of limit grooves are arranged at intervals up and down on the front and rear sides of the slider. When the slider is clamped by the two clamping blocks in the corresponding clamping block group, the limit teeth on the clamping block can be inserted into the limit grooves on the slider.

[0020] By adopting the above technical solution, when the two clamping blocks in the clamping block group clamp the slider, the limiting teeth are correspondingly inserted into the limiting grooves, so that the slider is fixed more firmly and the slider is prevented from slipping in the up and down directions.

[0021] Furthermore, the adjustment block is located on the front side of the handle, and the front side of the adjustment block is provided with an arc-shaped groove extending left and right along the axis.

[0022] By adopting the above technical solution, when in use, the operator's index finger can be placed in the arc-shaped groove to press the adjustment block, which can prevent the finger from slipping and make it more comfortable to use.

[0023] Furthermore, a collecting hopper is provided on the front side of the mounting plate, and an air suction pipe is installed in the inner cavity of the collecting hopper.

[0024] By adopting the above technical solution, the suction pipe can suck the impurities generated during the cleaning process into the impurity collection chamber, thereby avoiding air pollution and ground pollution.

[0025] The beneficial effect of the laser cleaning equipment provided by the present invention is that the operator can adjust the area of ​​the exposed area of ​​the laser output part by controlling the degree of pressure on the adjustment block. When cleaning objects of different sizes, there is no need to drastically change one's posture or drag the laser cleaning equipment back and forth, which can reduce work intensity and alleviate the physical burden of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0027] Figure 1 A schematic diagram of the structure of a laser cleaning device provided by the present invention Figure 1 ;

[0028] Figure 2 A schematic diagram of the structure of a laser cleaning device provided by the present invention Figure 2 ;

[0029] Figure 3 A schematic diagram of the structure of a laser cleaning device provided by the present invention Figure 3 ;

[0030] Figure 4 A schematic diagram of the structure of a laser cleaning device provided by the present invention after removing the gun body, handle and mounting plate Figure 1 ;

[0031] Figure 5 A schematic diagram of the structure of a laser cleaning device provided by the present invention after removing the gun body, handle and mounting plate Figure 2 ;

[0032] Figure 6 A schematic diagram of the structure of a laser cleaning device provided by the present invention Figure 4 ;

[0033] Figure 7 for Figure 6 A schematic diagram of the structure enlargement at the center A;

[0034] Figure 8 A schematic diagram of the structure of a handle in a laser cleaning device provided by the present invention;

[0035] Fig. 9 A schematic diagram of the structure of a U-shaped bracket in a laser cleaning device provided by the present invention;

[0036] Fig.10 A schematic diagram of the structure of a laser cleaning device provided by the present invention Figure 5 ;

[0037] Fig.11 for Fig.10 A magnified schematic diagram of the structure at point B in the middle.

[0038] Description of reference numerals:

[0039] 1. Gun body; 101. Laser input part; 102. Laser output part; 103. Upper inclined groove; 104. Horizontal straight groove; 105. Lower inclined groove; 2. Handle; 3. Mounting plate; 4. Adjustment block; 401. Arc groove; 402. Mounting ring; 5. U-shaped buckle plate; 501. Vertical plate; 502. Horizontal support plate; 503. Horizontal sliding hole; 504. Vertical sliding hole; 6. U-shaped bracket; 601. Side plate; 602. Horizontal plate; 603. Sliding hole; 604. Vertical sliding groove; 605. End sliding groove; 7. Transmission screw; 8. Threaded sleeve; 9. Transmission belt; 10. Rotating body; 11. Pulley; 12. Baffle; 13. Infrared emitting probe; 14. Roller; 15. Pull rope; 16. Connecting rod; 17. Second elastic member; 18. First elastic member; 19. Positioning member; 191. Positioning adjustment plate; 192. Positioning slider; 20. Elastic telescopic rod; 21. Cylindrical block; 22. Clamping block; 221. Transition arc surface; 23. Sliding block; 231. Middle slider section; 232. End slider section; 24. Collecting hopper; 241. Impurity collecting chamber; 25. First matching plate; 26. Second matching plate; 261. Second strip slide; 27. Articulated shaft. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0041] The following is one embodiment of a laser cleaning device provided by the present invention:

[0042] like Figure 1-Figure 9 As shown, a laser cleaning device includes a gun body 1, a handle 2, an adjustment block 4, a U-shaped bracket 6, a mounting plate 3, a baffle 12, a rotating body 10, a first transmission assembly, a second transmission assembly, a slider 23, a clamping block group and a positioning member 19.

[0043] like Figure 1 As shown, the gun body 1 extends in the front-to-back direction, the front end of the gun body 1 is provided with a laser output part 102, and the rear end of the gun body 1 is provided with a laser input part 101. Two groups of slide grooves are provided in the middle of the gun body 1, which are symmetrical to each other, each of which includes a horizontal straight groove 104 extending front and back and an upper inclined groove 103 and a lower inclined groove 105 respectively provided on the upper and lower sides of the horizontal straight groove 104, and the upper inclined groove 103 and the lower inclined groove 105 are separated from each other from front to back.

[0044] The handle 2 is hinged on the gun body 1, and the hinge position of the handle 2 and the gun body 1 is opposite to the rear end of the above-mentioned slide groove group, and an obtuse angle is formed between the front end of the handle 2 and the gun body 1. The front side of the handle 2 is connected to a U-shaped buckle plate 5 that penetrates in the left and right direction and opens toward the handle 2, such as Figure 8 As shown, the U-shaped gusset plate 5 includes two horizontal support plates 502 spaced apart from each other and a vertical plate 501 connected between the front ends of the two horizontal support plates 502. The upper horizontal support plate 502 is provided with a transverse sliding through hole 503 extending in the front-to-back direction and penetrating from left to right, and is also provided with a vertical sliding through hole 504 extending in the front-to-back direction and penetrating from top to bottom, and the transverse sliding through hole 503 and the vertical sliding through hole 504 are connected to each other.

[0045] The adjustment block 4 is assembled on the handle 2 in a forward and backward guiding sliding manner and is located in the U-shaped groove of the U-shaped buckle plate 5. Figure 5 As shown, the front end of the adjustment block 4 is provided with an arc-shaped groove 401 extending left and right along the axis, and a second elastic member 17 is connected between the adjustment block 4 and the handle 2. The second elastic member 17 is a compression spring that can be extended forward and backward. Figure 4 , Figure 5 As shown, a mounting ring 402 is connected to the top of the adjustment block 4, and the mounting ring 402 has an inner hole that penetrates left and right.

[0046] like Figure 1-Figure 5 As shown, the U-shaped bracket 6 is located at the front side of the hinged position of the gun body 1 and the handle 2. The U-shaped bracket 6 includes a side plate 601 and a horizontal plate 602. The side plates 601 are provided with two pieces. The two side plates 601 are symmetrically arranged on the left and right sides of the gun body 1. The side plates 601 are provided with sliding holes 603 extending up and down and passing through left and right. Figure 7 As shown, vertical slide grooves 604 extending up and down are provided on the front and rear hole walls of the slide hole 603, and an end slide groove 605 extending up and down is provided on the side of the vertical slide groove 604 facing away from the slide hole 603, and the end slide groove 605 is connected to the vertical slide groove 604 in the front and back directions, and the end slide groove 605 is connected to the outside on the side facing away from the gun body 1. The horizontal plate 602 is connected between the bottoms of the two side plates 601, and the mounting ring 402 on the top of the above-mentioned adjustment block 4 is inserted into the above-mentioned vertical sliding through hole 504. The horizontal plate 602 is inserted into the above-mentioned horizontal sliding through hole 503 in the left-right direction, and the horizontal plate 602 is also inserted into the inner hole of the mounting ring 402, so that when the adjustment block 4 moves in the front-back direction, it can drive the horizontal plate 602 and the two side plates 601 to move forward and backward synchronously.

[0047] like Figure 1 As shown, the mounting plate 3 is vertically connected to the front end of the gun body 1, and the laser output part 102 extends to the inner side of the mounting plate 3. The front end of the mounting plate 3 is provided with a through hole for exposing the laser output part 102.

[0048] like Figure 3As shown, there are two baffles 12, which are symmetrically installed on the inner side of the mounting plate 3 and located in front of the laser output unit 102. Each baffle 12 is installed on the mounting plate 3 in a left-right guided sliding manner. A first elastic member 18 is connected between each baffle 12 and the mounting plate 3. The first elastic member 18 is a compression spring that can be extended and retracted in the left-right direction. When the two first elastic members 18 are in a natural state, the two baffles 12 abut against each other, thereby blocking the above-mentioned perforations and the laser output unit 102, so that the laser output unit 102 cannot be exposed. The upper and lower ends of the baffle 12 on the side close to the other baffle 12 are each connected to a connecting rod 16 extending up and down. An infrared emitting probe 13 is installed on the front side wall of the baffle 12 on the side close to the other baffle 12. The two infrared emitting probes 13 on the two baffles 12 can emit visible red light, thereby calibrating the range of the laser emitted by the laser output unit 102.

[0049] like Figure 2 As shown, there are two rotating bodies 10, which are cylindrical. The two rotating bodies 10 are both rotatably mounted on the mounting plate 3 around a rotation axis extending forward and backward. The two rotating bodies 10 are located on one side of the mounting plate 3 close to the gun body 1 and the two rotating bodies 10 are respectively arranged on the left and right sides of the gun body 1.

[0050] There are two groups of first transmission components, which are respectively arranged on the left and right sides of the gun body 1 , and each group of first transmission components is respectively connected between the side plate 601 and the rotating body 10 on the same side.

[0051] like Figure 1 , Figure 2 As shown, the first transmission assembly includes a transmission screw 7 and a threaded sleeve 8. The transmission screw 7 extends in the front-to-back direction and is connected to the side plate 601. Fig.10 , Fig.11As shown, the specific connection method between the transmission screw 7 and the side plate 601 is: the side of the side plate 601 close to the transmission screw 7 is connected with the first matching plate 25 and the second matching plate 26, the first matching plate 25 and the second matching plate 26 are spaced apart and parallel to each other in the left and right directions, and a first strip slide groove extending in the up and down directions is provided on the side wall of the first matching plate 25 opposite to the second matching plate 26, and a second strip slide groove 261 extending in the up and down directions is provided on the side wall of the second matching plate 26 opposite to the first matching plate 25, and two left and right extending hinge shafts 27 are vertically connected to the rear end of the transmission screw 7, and the two hinge shafts 27 are respectively arranged on the left and right sides of the transmission screw 7, and the transmission screw 7 is located between the first matching plate 25 and the second matching plate 26, and the two hinge shafts 27 are respectively inserted in the first strip slide groove and the second strip slide groove 261. The threaded sleeve 8 extends in the front-to-back direction and is fixedly connected to the rotating body 10 coaxially with the rotating body 10. A thread is provided on the inner wall of the threaded sleeve 8. The transmission screw 7 is screwed into the threaded sleeve 8. When the side plate 601 drives the transmission screw 7 to move forward, the transmission screw 7 drives the threaded sleeve 8 to rotate, thereby driving the rotating body 10 to rotate.

[0052] There are two groups of second transmission components, which are symmetrically arranged on the left and right sides of the gun body 1, and each group of second transmission components is respectively connected between the rotating body 10 and the baffle 12 on the same side.

[0053] like Figure 2 The second transmission assembly includes a pulley 11, a roller 14 and a transmission belt 9.

[0054] like Figure 2 , Figure 4 As shown, there are two pulleys 11, both of which are rotatably mounted on the mounting plate 3 around a rotation axis extending forward and backward. Both of the pulleys 11 are located on the side of the rotating body 10 facing away from the gun body 1, and are symmetrically arranged on the upper and lower sides of the rotating body 10.

[0055] like Figure 3 , Figure 5 As shown, two rollers 14 are provided, and the two rollers 14 are coaxially fixed to the front ends of the two pulleys 11, respectively. The two rollers 14 are respectively located on the upper and lower sides of the baffle 12 on the corresponding sides, and a pull rope 15 is wound around the roller 14. The pull rope 15 on the two rollers 14 is respectively connected to two connecting rods 16 on the baffle 12 on the corresponding sides.

[0056] The transmission belt 9 is sleeved on the rotating body 10 and the two pulleys 11. When the rotating body 10 rotates, the transmission belt 9 drives the two pulleys 11 to rotate, and drives the two rollers 14 to rotate to reel in or release the pull rope 15. When the pull rope 15 is reeled in, the two baffles 12 move away from each other so that the laser output part 102 is gradually exposed. When the pull rope 15 is released, the two baffles 12 move closer to each other under the action of the first elastic member 18, and gradually cover the laser output part 102.

[0057] There are six sliders 23, and each of the sliding holes 603 on the side plates 601 is provided with three sliders 23 arranged in an upper and lower interval. Figure 6 , Figure 7 As shown, the slider 23 includes a middle slider section 231 and two end slider sections 232 symmetrically connected to the front and rear ends of the middle slider section 231. The side walls of the end slider sections 232 facing away from the middle slider section 231 are provided with a plurality of limit grooves arranged at intervals up and down. The middle slider section 231 of the slider 23 is inserted into the slide hole 603, and the two end slider sections 232 of the slider 23 are respectively inserted into the two vertical slide grooves 604 on the front and rear sides of the slide hole 603. Figure 4 , Figure 5 As shown, a cylindrical block 21 with an axis extending in the left-right direction is connected to the side wall of the middle slider section 231 of each slider 23 close to the gun body 1, and the three cylindrical blocks 21 on each side plate 601 are respectively inserted from top to bottom into the upper inclined groove 103, the horizontal straight groove 104 and the lower inclined groove 105 in the slide groove group on the corresponding side of the gun body 1.

[0058] There are six groups of clamping block groups, and each side plate 601 is provided with three groups of clamping block groups. The three groups of clamping block groups on the side plate 601 correspond one to one with the three sliding blocks 23 on the side plate 601 .

[0059] like Figure 7 As shown, the clamping block group includes two clamping blocks 22. The two clamping blocks 22 in the clamping block group are located on the front and rear sides of the corresponding slider 23 and are symmetrically arranged in the two vertical slide grooves 604 on the front and rear sides of the slide hole 603. An elastic telescopic rod 20 extending forward and backward is connected between each clamping block 22 and the bottom surface of the vertical slide groove 604 on the corresponding side. A plurality of limit teeth arranged at intervals up and down are provided on the side wall of the clamping block 22 facing the corresponding slider 23. When the two clamping blocks 22 in the clamping block group are in a natural state, the two clamping blocks 22 cannot clamp the corresponding slider 23. At this time, the slider 23 can slide up and down in the slide hole 603. When the two clamping blocks 22 in the clamping block group are close to each other, they can clamp the slider 23, and at the same time, the limit teeth on the clamping blocks 22 are inserted into the limit grooves on the slider 23 to fix the slider 23 on the corresponding side plate 601. As shown Fig. 9 As shown, transition arc surfaces 221 extending left and right along the axis are provided at the upper and lower ends of the clamping block 22 on the side facing away from the corresponding sliding block 23 .

[0060] like Figure 5 , Figure 6 and Figure 7As shown, the positioning member 19 includes a positioning adjustment plate 191 and two positioning sliders 192. The two positioning sliders 192 are connected to the positioning adjustment plate 191 and are arranged at intervals in the front-to-back direction. The two positioning sliders 192 in the positioning member 19 are respectively slidably inserted into the two end slide grooves 605 on the above-mentioned side plate 601, so that the positioning member 19 can be installed on the side plate 601 by sliding up and down. The outer ends of the two clamping blocks 22 in the above-mentioned clamping block groups also extend into the end slide groove 605 in the natural state. The inner spacing dimension between the two positioning sliders 192 in the positioning member 19 is smaller than the outer spacing dimension between the two clamping blocks 22 in the clamping block group in the natural state. When the positioning member 19 moves up and down, the two positioning sliders 192 can cross the transition arc surface 221 and move between the two adjacent groups of clamping blocks in the upper and lower parts. When the two positioning sliders 192 in the positioning member 19 move to the outside of the two clamping blocks 22 in one of the clamping block groups, the two sliders 23 in the clamping block group can be brought close to each other, so that the two clamping blocks 22 are clamped on the outside of the corresponding sliders 23.

[0061] like Figure 1 , Figure 6 As shown, in order to facilitate the collection of flying impurities generated during the laser cleaning process and prevent the impurities from splashing onto the laser output part 102 and causing damage to the laser output part 102, a collecting hopper 24 with an opening tilted upward is provided on the front side of the mounting plate 3 below the laser output part 102. The inner cavity of the collecting hopper 24 is an impurity collecting cavity 241. A suction pipe is installed on the inner cavity wall of the impurity collecting cavity 241. The suction pipe sucks air from the outside to the inside to suck impurities into the impurity collecting cavity 241.

[0062] When using the present invention to clean a large number of items, the operator holds the handle 2 in the laser cleaning device and presses the adjustment block 4 with the index finger, driving the U-shaped bracket 6 to move backward, the U-shaped bracket 6 drives the transmission screw 7 to move backward, the transmission screw 7 drives the threaded sleeve 8 to rotate, the threaded sleeve 8 drives the rotating body 10 to rotate, the rotating body 10 drives the roller 14 to rotate, so that the pull rope 15 is rolled up on the roller 14, thereby pulling the two baffles 12 away from each other, exposing the laser output part 102, and aligning the laser output part 102 with the items to be cleaned, so that the emitted laser irradiates the items and moves back and forth on the items to clean the items. After cleaning, when it is necessary to replace the items with larger or smaller sizes for cleaning, the operator only needs to adjust the area of ​​the area exposed by the laser output part 102 by adjusting the degree of pressing the adjustment block 4, so as to adjust the coverage area of ​​the laser on the items to be cleaned to a size that matches the size of the items to be cleaned, so as to clean the items and improve the cleaning efficiency.

[0063] When the height of the object to be cleaned is relatively high and the area to be cleaned on the object is located at a relatively high position, the positioning member 19 can be slid downward to move the two positioning sliders 192 in the positioning member 19 to the outside of the clamping block group at the bottom, so that the two clamping blocks 22 in the clamping block group clamp the bottom slider 23 to be fixed on the side plate 601. At this time, when the adjustment block 4 is pressed, the gun body 1 will rotate upward around the hinge position under the action of the slider 23 at the bottom and the lower inclined groove 105, so that the front end of the gun body 1 is tilted upward. In this way, when laser cleaning is performed, since the laser output part 102 has a certain upward tilt amplitude, the operator does not need to control the arm and wrist to bend upward to aim the laser output part 102 at the area to be cleaned, and the operation is easier.

[0064] When the object to be cleaned is at a lower position, slide the positioning member 19 upwards to move the two positioning sliders 192 in the positioning member 19 to the outside of the clamping block group at the top, so that the two clamping blocks 22 in the clamping block group clamp the top slider 23 to the side plate 601. At this time, press the adjustment block 4, and the gun body 1 will rotate downward around the hinge position under the action of the slider 23 at the top and the upper inclined groove 103, so that the front end of the gun body 1 is tilted downward. In this way, when performing laser cleaning, since the laser output part 102 has a certain downward tilt, the operator does not need to control the arm and wrist to bend downward to aim the laser output part 102 at the area to be cleaned, which makes the operation easier and can reduce the burden of the holding posture on the operator.

[0065] The present invention can adjust the size of the exposed area of ​​the laser output part 102 by pressing the adjustment block 4. When the operator uses the present invention to clean objects of different sizes, he can always maintain a more comfortable posture without dragging the equipment back and forth, which can reduce the labor intensity of the operator during the cleaning process and reduce the physical burden of the operator.

[0066] In this embodiment, the first transmission assembly includes a transmission screw 7 and a threaded sleeve 8 that are threadedly screwed together. In other embodiments, the first transmission assembly includes a rack whose rear end is slidably hinged on the side plate 601 in the up and down directions, a first bevel gear whose rotation axis extends left and right and is rotatably assembled on the mounting plate 3, and a second bevel gear coaxially connected to the rotating body 10 and meshing with the first bevel gear. At this time, the side plate 601 moves in the front and rear directions to drive the first bevel gear to rotate, and the first bevel gear drives the second bevel gear and the rotating body 10 to rotate.

[0067] In this embodiment, the second transmission assembly includes a pulley 11, a roller 14 and a transmission belt 9. In other embodiments, the second transmission assembly includes a transmission gear coaxially fixedly connected to the rotating body 10 and a transmission rack extending left and right and fixedly connected to the baffle 12. The transmission gear and the transmission rack are meshed with each other. When the rotating body 10 rotates, the transmission gear is driven to rotate. When the transmission gear rotates, it drives the transmission rack to move back and forth left and right, thereby driving the baffle 12 to move in the left and right directions.

[0068] In this embodiment, the positioning member 19 includes a positioning adjustment plate 191 and two positioning sliders 192 connected to the positioning adjustment plate 191 and arranged at intervals in front and back. The side plate 601 is provided with three groups of clamping blocks arranged at intervals in the upper and lower directions. Each group of clamping blocks includes two clamping blocks 22 arranged symmetrically in the front and back directions, and the clamping blocks 22 are elastically mounted on the side plate 601 in the front and back directions. When the two positioning sliders 192 in the positioning member 19 move to the outside of the two clamping blocks 22 in the clamping block group, the two clamping blocks 22 are squeezed close to each other to fix the corresponding sliders 23 on the side plate 601. In other embodiments, the positioning member 19 is a moving block, which is guided and slidably assembled on the side plate 601 in an up and down manner and is located on the rear side of the slider 23. A locking bolt that extends forward and backward and penetrates the moving block is rotatably passed through the moving block. Each slider 23 is provided with a threaded blind hole that extends forward and backward and opens toward the rear. When the positioning member 19 moves to the side of the slider 23, the locking bolt thereon is screwed so that the locking bolt thread is screwed into the threaded blind hole on the corresponding slider 23, thereby pressing and fixing the slider 23 on the side plate 601, thereby achieving the fixation of the slider 23 by the positioning member 19.

Claims

1. A laser cleaning device, comprising a gun body extending forward and backward, a laser output part is provided at the front end of the gun body, a laser input part is provided at the rear end of the gun body, a handle is connected to the bottom of the gun body, and the handle is located between the laser output part and the laser input part, characterized in that: The front end of the gun body is vertically connected with a mounting plate, the laser output part is arranged on the mounting plate, and two baffles are movably mounted on the mounting plate, the two baffles are symmetrically arranged and both are located in front of the laser output part, the laser output part can be shielded when the two baffles abut against each other, and the laser output part can be exposed when the two baffles are away from each other; An adjustment block is installed on the handle so as to be elastically movable forward and backward, and a U-shaped bracket is connected to the top of the adjustment block. The U-shaped bracket includes two side plates symmetrically distributed on the left and right sides of the gun body, and two rotating bodies with two rotating axes extending forward and backward are rotatably installed on the installation plate. The two rotating bodies are symmetrically arranged on the left and right sides of the gun body, and the two side plates are respectively connected to the two rotating bodies through two groups of first transmission components. When the two side plates move forward or backward with the adjustment block, the two rotating bodies are driven to rotate synchronously through the two groups of first transmission components. The two rotating bodies are respectively connected to the two baffles through two sets of second transmission components, so that when the two rotating bodies rotate synchronously, the two baffles are driven by the two sets of second transmission components to synchronously approach or move away from each other, thereby making the exposed area of ​​the laser output part smaller or larger; The first transmission assembly includes a transmission screw and a threaded sleeve extending forward and backward along the axis, the transmission screw is connected to the side plate, and the threaded sleeve is coaxially fixed to the rotating body; The gun body is provided with two groups of symmetrical slide grooves, which are opposite to the side plates on the left and right. The slide grooves include a horizontal straight groove and an upper inclined groove and a lower inclined groove which are arranged on the upper and lower sides of the horizontal straight groove. The upper inclined groove and the lower inclined groove are away from each other from the front to the back. The side plates are provided with slide holes which extend up and down and penetrate left and right. The slide holes are provided with three slide blocks arranged at intervals up and down for guiding the slides up and down. The side plate is equipped with a positioning piece for guiding and sliding in the up and down directions. The positioning piece can cooperate with the three sliders in sequence during the up and down movement to fix the corresponding sliders on the side plate. The side plate is connected with a matching plate, and the transmission screw is connected to the side plate through the matching plate.

2. A laser cleaning device according to claim 1, characterized in that: The inner wall of the threaded sleeve is provided with threads, and the transmission screw is screwed into the threaded sleeve. When the transmission screw moves forward and backward with the side plate, the threaded sleeve is driven to rotate, thereby driving the rotating body to rotate.

3. The laser cleaning device according to claim 1, characterized in that: A first elastic member that can be extended and retracted left and right is connected between the two baffles and the mounting plate. The first elastic member applies an elastic force toward the other baffle on the baffle, so that the two baffles abut against each other. The second transmission assembly includes a pulley, a roller and a transmission belt. The pulley is rotatably assembled on the mounting plate around a rotation axis extending forward and backward. The roller is coaxially fixed to the pulley. A pull rope is wound around the roller. The rope end of the pull rope is connected to the baffle on the corresponding side. The transmission belt is mounted on the pulley and the rotating body. The rotating body drives the pulley and the roller to rotate through the transmission belt, thereby winding or releasing the pull rope on the roller, so that the corresponding baffle moves back to or toward the other baffle.

4. The laser cleaning device according to claim 2, characterized in that: The gun body is hinged to the handle; each of the three sliders is connected to a cylindrical block with an axis extending left and right on the side facing the gun body, and each cylindrical block is respectively inserted in the upper inclined groove, the horizontal straight groove and the lower inclined groove; the matching plate is provided with a strip slide groove extending in the up and down directions, and the end of the transmission screw rod close to the side plate is vertically connected to a hinge shaft extending left and right, and the hinge shaft is inserted in the strip slide groove.

5. The laser cleaning device according to claim 4, characterized in that: The sliding hole is provided with three groups of clamping block groups arranged in sequence up and down, each group of clamping block groups includes two clamping blocks arranged symmetrically front and back, each clamping block can be installed on the side plate for elastic movement front and back, and the three sliders correspond to the three groups of clamping block groups one by one, and each slider is located between the two clamping blocks in the corresponding clamping block group. The positioning member includes a positioning adjustment plate and two positioning sliders connected to the positioning adjustment plate and arranged at intervals front and back. The two positioning sliders are respectively arranged on the front and rear sides of the clamping block group and are guided and slidably assembled on the side plate up and down. The inner spacing dimension of the two positioning sliders is smaller than the outer spacing dimension of the two clamping blocks in the clamping block group under the state without external force. When the two positioning sliders move to the outside of any clamping block group, they can squeeze the two clamping blocks in the clamping block group close to each other and clamp the corresponding slider. The upper and lower ends of the side of each clamping block facing away from the corresponding slider are provided with transition arc surfaces extending left and right of the axis, so that the positioning slider can reciprocate between any two adjacent clamping blocks up and down.

6. The laser cleaning device according to claim 5, characterized in that: A plurality of limit teeth are arranged at intervals up and down on one side of the clamping block facing the corresponding slider, and a plurality of limit grooves are arranged at intervals up and down on both the front and rear sides of the slider. When the slider is clamped by the two clamping blocks in the corresponding clamping block group, the limit teeth on the clamping block can be inserted into the limit grooves on the slider.

7. A laser cleaning device according to any one of claims 1 to 3, characterized in that: The adjustment block is located at the front side of the handle, and the front side of the adjustment block is provided with an arc-shaped groove extending left and right with an axis.

8. A laser cleaning device according to any one of claims 1 to 3, characterized in that: A collecting hopper is arranged on the front side of the mounting plate, and an air suction pipe is arranged in the inner cavity of the collecting hopper.

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