Precise control micro-powder sand blasting equipment

Abstract

The invention relates to the technical field of sand blasting equipment, and discloses precise control micro powder sand blasting equipment which comprises a pressure tank, a protective cover is connected to the outer wall of the pressure tank through a pipeline, a first connecting plate is connected to the outer wall of the protective cover through a pipeline, and a first motor is fixedly connected to the top of the first connecting plate. The elastic ring can guide and convey sand grains conveyed by the pressure tank to a front-end sand blasting area, meanwhile, the elastic reinforcing rods fixedly connected to the outer wall of the elastic ring play a role in structural reinforcement, the situation that the elastic ring excessively deforms due to impact force generated by high-speed flowing of the sand grains in the sand blasting process is avoided, and the elastic ring can be supported through the elastic reinforcing rods; the deformation amplitude of the sand grains is effectively inhibited, the kinetic energy loss of the sand grains in the conveying process is reduced, it is guaranteed that the sand grains are jetted at a stable speed, it is guaranteed that the equipment can maintain a good sand blasting effect in different radius adjusting states, and the stability of operation quality is improved.

Description

Technical Field

[0001] The invention relates to the technical field of sandblasting equipment, in particular to precision-controlled micro-powder sandblasting equipment. Background Art

[0002] The sandblasting machine uses compressed air to transport powdered granular materials from one place to another in a pipeline. In the process of converting kinetic energy into potential energy, the high-speed moving sand particles scour the surface of the object, thereby improving the surface quality of the object. The patent application with application number CN202322662269.3 discloses an open sandblasting equipment with adjustable sandblasting angle, including a mounting plate, a servo motor 1 and a mold frame are installed on the top of the mounting plate, the top of the mold frame is rotatably connected to a turntable, the driving end of the servo motor 1 movably passes through the inner side of the mold frame and is fixedly connected to the bottom of the turntable, the top of the mold frame is provided with a fixing component 1, two groups of support plates are fixedly installed on the top of the turntable, and a fixing component 2 is installed on the other group of support plates; when the angle of the turntable is adjusted, the electric push rod 1 is started to drive the clamping block 1 to fit tightly against the outer surface of the turntable, so that the vibration generated by the operation of the spray gun will not drive the turntable to rotate; when the angle of the pipe sleeve is adjusted, the electric push rod 2 is started to drive the clamping block 2 to fit tightly against the outer surface of the rotating rod, so that the outer surface of the rotating rod is subjected to strong resistance, so that the vibration generated by the operation of the pipe spray gun will not drive the rotating rod to rotate.

[0003] When the existing equipment is in use, although the sandblasting angle adjustment performance is good, because the operator needs to work behind a protective barrier, the nozzle replacement operation is inconvenient during the switching process between large-area basic surface treatment and local fine-intensified sandblasting, which affects the continuity of the operation and thus reduces the overall processing efficiency of the equipment. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present invention provides a precision-controlled micro-powder sandblasting device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a precision-controlled micro-powder sandblasting device, comprising a pressure tank, an outer wall pipe of the pressure tank being connected to a protective cover, an outer wall pipe of the protective cover being connected to a connecting plate 1, a top of the connecting plate 1 being fixedly connected to a motor 1, a bottom of the connecting plate 1 being rotatably connected to a robotic arm via a bearing, an output end of the motor 1 being fixedly connected to the robotic arm, an end of the robotic arm away from the motor 1 being fixedly connected to an angle adjustment device, and an inner wall of the angle adjustment device being fixedly connected to a nozzle mechanism; The nozzle mechanism comprises: A hollow column, the outer wall of the hollow column is fixedly connected to the angle adjustment device, the front end of the hollow column is fixedly connected to the outer shell, the outer wall of the hollow column is fixedly connected to motor 2, the inner wall of the outer shell is rotatably connected to the transmission assembly through a bearing, the inner wall of the outer shell is rotatably connected to the rotating assembly through a bearing, the inner wall of the outer shell is fixedly connected to the adjustment assembly, wherein the protective cover and the bottom of the pressure tank are fixedly connected to universal wheels.

[0006] According to the above technical solution, the end of the hollow column away from the shell is fixedly connected to a connecting ring 1, and the end of the connecting ring 1 close to the shell is fixedly connected to an elastic ring, wherein the material of the elastic ring is cast polyurethane elastomer, which has high wear resistance and can effectively resist the erosion of sand and gravel, and has high resilience itself, which can adapt to the adjustment of the nozzle radius. The outer wall of the elastic ring is fixedly connected to an elastic reinforcement rod, wherein the elastic ring can expand outward. By setting a nozzle mechanism, the elastic ring can guide the sand particles transported by the pressure tank to the front sandblasting area. At the same time, the elastic reinforcement rod fixedly connected to the outer wall of the elastic ring plays a structural reinforcement role, avoiding the impact force generated by the high-speed flow of sand particles during the sandblasting process causing excessive deformation of the elastic ring. The elastic reinforcement rod can provide support for the elastic ring, effectively suppressing its deformation amplitude, reducing the kinetic energy loss of sand particles during transmission, ensuring that the sand particles are sprayed at a stable speed, and ensuring that the equipment can maintain a good sandblasting effect under different radius adjustment conditions, thereby improving the stability of the operation quality.

[0007] According to the above technical solution, the end of the connecting ring 1 away from the elastic ring is fixedly connected to the connecting hose, the end of the connecting hose away from the outer shell is fixedly connected to the pressure tank, and the inner wall of the connecting plate 1 is rotatably connected to the rotating column 1 through a bearing, wherein the connecting hose can be extended and retracted in the pressure tank, and the connecting hose is sleeved on the outer wall of the rotating column 1.

[0008] According to the above technical solution, the transmission assembly includes a rotating column 2, the outer wall of the rotating column 2 is fixedly connected to a gear 1, the outer wall of the rotating column 2 is fixedly connected to a friction ring 1, and the output end of the motor 2 is fixedly connected to the rotating column 2, wherein the motor 2 can drive the gear 1 to rotate.

[0009] According to the above technical solution, the outer wall of the rotating column 2 is movably connected to the friction ring 2, the outer wall of the friction ring 2 is fixedly connected to the connecting plate 2, the end of the connecting plate 2 away from the friction ring 2 is fixedly connected to the push rod, and the end of the push rod away from the connecting plate 2 is fixedly connected to the outer shell, wherein the push rod can drive the friction ring 2 to move. By setting a transmission component, when the equipment completes the setting of the nozzle outlet radius, the static friction force generated between the contact surfaces of the two friction rings is used to achieve a stable locking of the nozzle outlet radius to prevent the set nozzle radius from changing unexpectedly. At the same time, the locking mechanism also isolates the direct impact of the sandblasting pressure on the motor 2, avoids damage to the motor due to overload or stall, and enhances the anti-interference ability and overall operation stability of the equipment under continuous high-pressure sandblasting conditions.

[0010] According to the above technical solution, the rotating component includes a connecting ring 2, the inner wall of the outer shell is rotatably connected to the connecting ring 2 through a bearing, the outer wall of the connecting ring 2 is provided with a sliding groove, the outer wall of the connecting ring 2 is fixedly connected with a gear 2, and the gear 2 is engaged with the gear 1, wherein the rotation of the gear 1 can drive the position of the sliding groove to shift.

[0011] According to the above technical solution, the adjustment component includes a connecting ring three, the outer wall of the connecting ring three is fixedly connected to the outer shell, the inner wall of the connecting ring three is fixedly connected to a sliding column, and a connecting strip is arranged inside the connecting ring three, the outer wall of the connecting strip is provided with a circular hole one, the inner wall of the circular hole one is movably connected to the sliding column, the outer wall of the connecting strip is provided with a through groove, and the end of the connecting strip away from the connecting ring three is fixedly connected to a connecting plate three, wherein the sliding column can limit the moving trajectory of the connecting strip and the connecting plate three. By setting the adjustment component, the inner diameter of the nozzle outlet can be adjusted when the equipment is in continuous operation. The adjustment can control the outlet flow rate of the sandblasting jet and change its coverage range on the workpiece surface, so that the equipment can optimize the sandblasting effect according to different surface conditions of the workpiece, thereby improving the overall operating efficiency of the equipment.

[0012] According to the above technical solution, a connecting plate four is provided inside the connecting ring three, and sliders are fixedly connected to the front and rear ends of the connecting plate four, and the outer wall of the slider is movably connected to the slide groove, and a circular hole two is opened on the outer wall of the connecting plate four, and a limiting column is movably connected to the inner wall of the circular hole two, and the outer wall of the limiting column is movably connected to the through groove, and the end of the connecting plate four away from the connecting ring three is fixedly connected to the inner plate, and the end of the elastic ring away from the connecting ring one is fixedly connected to the inner plate, wherein the deflection of the slide groove position can change the position of the inner plate, and by setting an adjustment component, when the equipment performs the nozzle inner diameter expansion operation, the internal tight fit or the controllable small gap is maintained, which effectively avoids the abrasive sand particles ejected at high speed from invading and accumulating in the active gap of the moving parts in the expansion state, and prevents the movement jamming, abnormal wear of components or transmission failure caused by the intrusion of sand particles, thereby improving the equipment operation reliability and long-term working stability.

[0013] Compared with the prior art, the present invention provides a precision-controlled micro-powder sandblasting device with the following beneficial effects: 1. The present invention provides an adjustment component, which can adjust the inner diameter of the nozzle outlet when the equipment is in continuous operation. This adjustment can control the outlet flow rate of the sandblasting jet and change its coverage range on the workpiece surface, so that the equipment can optimize the sandblasting effect according to the different surface conditions of the workpiece, thereby improving the overall operating efficiency of the equipment.

[0014] 2. The present invention provides an adjustment component to maintain a tight fit inside or a controllable small gap when the equipment performs the nozzle inner diameter expansion operation, effectively preventing abrasive sand particles ejected at high speed from invading and accumulating in the active gap of the moving parts in the expanded state, and preventing malfunctions such as movement jamming, abnormal component wear or transmission failure caused by the intrusion of sand particles, thereby improving the equipment's operational reliability and long-term working stability.

[0015] 3. The present invention sets a transmission component. When the equipment completes the setting of the nozzle outlet radius, the static friction generated between the contact surfaces of the two friction rings is used to achieve a stable locking of the nozzle outlet radius, thereby preventing the set nozzle radius from changing unexpectedly. At the same time, the locking mechanism also isolates the direct impact of the sandblasting pressure on the motor 2, avoiding damage to the motor due to overload or stalling, and enhancing the anti-interference ability and overall operation stability of the equipment under continuous high-pressure sandblasting conditions.

[0016] 4. The present invention sets a nozzle mechanism, and the elastic ring can guide the sand transported by the pressure tank to the front sandblasting area. At the same time, the elastic reinforcing rod fixed to the outer wall of the elastic ring plays a structural reinforcement role, avoiding the impact force generated by the high-speed flow of sand during the sandblasting process from causing excessive deformation of the elastic ring. The elastic reinforcing rod can provide support for the elastic ring, effectively suppressing its deformation amplitude, reducing the kinetic energy loss of sand during the transmission process, ensuring that the sand is sprayed at a stable speed, ensuring that the equipment can maintain a good sandblasting effect under different radius adjustment states, and improving the stability of the operation quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a partial structural schematic diagram of the present invention; Figure 3 Schematic diagram of the nozzle mechanism of the present invention; Figure 4 is a cross-sectional view of the nozzle mechanism of the present invention; Figure 5 is a schematic diagram of a transmission assembly of the present invention; Figure 6 is a schematic diagram of a rotating assembly of the present invention; Figure 7 Schematic diagram of the adjustment component of the present invention Figure 1 ; Figure 8 Schematic diagram of the adjustment component of the present invention Figure 2 ; Figure 9 Schematic diagram of the adjustment component of the present invention Figure 3 .

[0018] Figure: 1. Pressure tank; 101. Protective cover; 102. Connecting plate 1; 103. Motor 1; 104. Connecting hose; 105. Rotating column 1; 106. Robotic arm; 107. Angle adjustment device; 2. Sprinkler mechanism; 201. Hollow column; 202. Housing; 203. Connecting ring 1; 204. Motor 2; 205. Elastic ring; 206. Elastic reinforcement rod; 21. Transmission assembly; 211. Rotating column 2; 212. Gear 1; 213. Friction Ring one; 214, friction ring two; 215, connecting plate two; 216, push rod; 22, rotating assembly; 221, connecting ring two; 222, slide groove; 223, gear two; 23, adjustment assembly; 231, connecting ring three; 232, sliding column; 233, connecting strip; 234, circular hole one; 235, connecting plate three; 236, through groove; 237, connecting plate four; 238, circular hole two; 239, slider; 2310, inner plate; 2311, limiting column. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but are not to be construed as limiting the present invention.

[0021] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0022] Example 1: See Figure 1-Figure 5The present invention provides a technical solution: a precision-controlled micro-powder sandblasting device, comprising a pressure tank 1, wherein the outer wall pipe of the pressure tank 1 is connected to a protective cover 101, and the outer wall pipe of the protective cover 101 is connected to a connecting plate 102. In order to allow the device to adjust the radius, a nozzle mechanism 2 is provided, and a motor 103 is fixedly connected to the top of the connecting plate 102, and a mechanical arm 106 is rotatably connected to the bottom of the connecting plate 102 through a bearing. The output end of the motor 103 is fixedly connected to the mechanical arm 106, and an end of the mechanical arm 106 away from the motor 103 is fixedly connected to an angle adjustment device 107, and the inner wall of the angle adjustment device 107 is fixedly connected to the nozzle mechanism 2; The nozzle mechanism 2 includes: a hollow column 201, the outer wall of the hollow column 201 is fixedly connected to the angle adjustment device 107, the front end of the hollow column 201 is fixedly connected to the shell 202, the outer wall of the hollow column 201 is fixedly connected to the motor 204, the inner wall of the shell 202 is rotatably connected to the transmission component 21 through a bearing, the inner wall of the shell 202 is rotatably connected to the rotating component 22 through a bearing, and the inner wall of the shell 202 is fixedly connected to the adjustment component 23, wherein the protective cover 101 and the bottom of the pressure tank 1 are fixedly connected with universal wheels, the end of the hollow column 201 away from the shell 202 is fixedly connected to the connecting ring 1 203, and the end of the connecting ring 1 203 close to the shell 202 is fixedly connected to the elastic ring 205, wherein the material of the elastic ring 205 is cast polyurethane elastomer, which has high wear resistance, can effectively resist the erosion of sand and gravel, and has high resilience to adapt to the adjustment of the nozzle radius, the outer wall of the elastic ring 205 is fixedly connected to the elastic reinforcing rod 206, wherein the elastic reinforcing rod 206 is fixedly connected to the outer wall of the elastic reinforcing rod 206. The elastic ring 205 can expand outward, and the end of the connecting ring 203 away from the elastic ring 205 is fixedly connected to the connecting hose 104, and the end of the connecting hose 104 away from the shell 202 is fixedly connected to the pressure tank 1, and the inner wall of the connecting plate 102 is rotatably connected to the rotating column 105 through a bearing, wherein the connecting hose 104 can be extended and retracted in the pressure tank 1, and the connecting hose 104 is sleeved on the outer wall of the rotating column 105. The device uses the hollow column 201 as the core bearing structure, and its outer wall is fixedly connected to the angle adjustment device 107, and the angle of the nozzle mechanism can be regulated by the angle adjustment device; the shell 202 fixed at the front end provides an installation space for the internal components, and the motor 204 on the outer wall provides a power source for the adjustment of the internal components. After the motor 204 is started, it drives the transmission component 21 to operate, and the transmission component 21 transmits power to the rotating component 22, driving the rotating component 22 to move, and the rotating component 22 further acts on the adjustment component 23 to achieve the adjustment of the nozzle radius.

[0023] The transmission assembly 21 includes a rotating column 211, the outer wall of the rotating column 211 is fixedly connected to the gear 1 212, the outer wall of the rotating column 211 is fixedly connected to the friction ring 1 213, the output end of the motor 204 is fixedly connected to the rotating column 211, wherein the motor 204 can drive the gear 1 212 to rotate, the outer wall of the rotating column 211 is movably connected to the friction ring 214, the outer wall of the friction ring 214 is fixedly connected to the connecting plate 215, the end of the connecting plate 215 away from the friction ring 214 is fixedly connected to the push rod 216, the end of the push rod 216 away from the connecting plate 215 is fixedly connected to the housing 202, wherein the push rod 216 can drive the friction ring 214 to move, the motor 2 04 is used as a power source, and its output end is fixedly connected to the rotating column 211. After starting, it can directly drive the rotating column 211 to rotate. The motor 204 is used as a power source. After starting, it can directly drive the rotating column 211 to rotate. The gear 1 212 fixed on the outer wall of the rotating column 211 rotates synchronously with it, providing power for the adjustment of the adjustment component 23. When it is necessary to fix the position of the rotating column 211, the push rod 216 can push the connecting plate 215, driving the friction ring 214 to approach and fit the friction ring 1 213 on the outer wall of the rotating column 211, and use the friction force generated by the contact between the two to brake the rotating column 211. If it needs to be adjusted again, the push rod 216 pulls the friction ring 214 away from the friction ring 1 213 to release the brake.

[0024] Example 2: Please refer to Figure 6-Figure 9 On the basis of embodiment 1, the present invention provides a technical solution: in order to ensure the stable and normal operation of the equipment, a rotating component 22 and an adjusting component 23 are set. The rotating component 22 includes a connecting ring 221. The inner wall of the shell 202 is rotatably connected to the connecting ring 221 through a bearing. The outer wall of the connecting ring 221 is provided with a slide groove 222. The outer wall of the connecting ring 221 is fixedly connected with a gear 223. The gear 223 is meshed with the gear 1 212. The rotation of the gear 1 212 can drive the position of the slide groove 222 to shift. When the motor 204 drives the rotating column 211 to rotate, the gear 1 212 drives the gear 223 to rotate through the gear meshing action. Since the outer wall of the connecting ring 221 is provided with a slide groove 222, it will shift in position with the rotation of the connecting ring 221. The state of the adjustment component 23 is adjusted by changing the position of the slide groove 222 to achieve the adjustment of the inner radius of the nozzle.

[0025] The adjusting assembly 23 includes a connecting ring 331, the outer wall of the connecting ring 331 is fixedly connected to the shell 202, the inner wall of the connecting ring 331 is fixedly connected to the sliding post 232, the interior of the connecting ring 331 is provided with a connecting strip 233, the outer wall of the connecting strip 233 is provided with a circular hole 1 234, the inner wall of the circular hole 1 234 is movably connected to the sliding post 232, the outer wall of the connecting strip 233 is provided with a through groove 236, the end of the connecting strip 233 away from the connecting ring 3 231 is fixedly connected to the connecting plate 3 235, wherein the sliding post 232 can limit the movement trajectory of the connecting strip 233 and the connecting plate 3 235, the interior of the connecting ring 3 231 is provided with a connecting plate 4 237, the front and rear ends of the connecting plate 4 237 are fixedly connected to the slider 239, the outer wall of the slider 239 is movably connected to the sliding groove 222, the outer wall of the connecting plate 4 237 is provided with a circular hole 238, the inner wall of the circular hole 238 is movably connected to the limiting post 2311, the limiting post The outer wall of 2311 is movably connected to the through groove 236, and the end of the connecting plate four 237 away from the connecting ring three 231 is fixedly connected to the inner plate 2310, and the end of the elastic ring 205 away from the connecting ring one 203 is fixedly connected to the inner plate 2310, wherein the deflection of the position of the slide groove 222 can change the position of the inner plate 2310, and the connecting ring three 231 serves as the basic bearing structure. The sliding column 232 fixed on its inner wall is movably connected with the circular hole one 234 of the connecting bar 233 to form a constraint, limiting the movement trajectory of the connecting plate three 235, and the connecting plate four 237 inside the connecting ring three 231 is a power transmission component. The sliders 239 at the front and rear ends are movably connected to the slide groove 222 of the rotating assembly 22. When the connecting ring two 221 of the rotating assembly rotates to cause the position of the slide groove 222 to deviate, the slider 239 expands outward, driving the connecting plate four 237 to move synchronously, and at the same time, the connecting plate four 237 drives the connecting plate three 235 to move synchronously through the limiting column 2311.

[0026] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A precision controlled micro powder sand blasting device, comprising a pressure tank (1), wherein the outer wall pipe of the pressure tank (1) is connected to a protective cover (101), and the outer wall pipe of the protective cover (101) is connected to a connecting plate (102), characterized in that: The top of the connecting plate 1 (102) is fixedly connected to the motor 1 (103), the bottom of the connecting plate 1 (102) is rotatably connected to the mechanical arm (106) via a bearing, the output end of the motor 1 (103) is fixedly connected to the mechanical arm (106), the end of the mechanical arm (106) away from the motor 1 (103) is fixedly connected to the angle adjustment device (107), and the inner wall of the angle adjustment device (107) is fixedly connected to the nozzle mechanism (2); The nozzle mechanism (2) comprises: A hollow column (201), the outer wall of the hollow column (201) is fixedly connected to the angle adjustment device (107), the front end of the hollow column (201) is fixedly connected to the housing (202), the outer wall of the hollow column (201) is fixedly connected to the second motor (204), the inner wall of the housing (202) is rotatably connected to the transmission component (21) via a bearing, the inner wall of the housing (202) is rotatably connected to the rotation component (22) via a bearing, and the inner wall of the housing (202) is fixedly connected to the adjustment component (23), wherein the protective cover (101) and the bottom of the pressure tank (1) are both fixedly connected to universal wheels.

2. The precision controlled micro powder sand blasting equipment according to claim 1, characterized in that: One end of the hollow column (201) away from the housing (202) is fixedly connected to a connecting ring 1 (203), and one end of the connecting ring 1 (203) close to the housing (202) is fixedly connected to an elastic ring (205). The outer wall of the elastic ring (205) is fixedly connected to an elastic reinforcing rod (206), wherein the elastic ring (205) can expand outward.

3. The precision controlled micro powder sand blasting equipment according to claim 2, characterized in that: The end of the connecting ring 1 (203) away from the elastic ring (205) is fixedly connected to the connecting hose (104), and the end of the connecting hose (104) away from the shell (202) is fixedly connected to the pressure tank (1). The inner wall of the connecting plate 1 (102) is rotatably connected to the rotating column 1 (105) through a bearing, wherein the connecting hose (104) can be extended and retracted in the pressure tank (1), and the connecting hose (104) is sleeved on the outer wall of the rotating column 1 (105).

4. The precision-controlled micro-powder sandblasting equipment according to claim 3, characterized in that: The transmission assembly (21) includes a rotating column 2 (211), the outer wall of the rotating column 2 (211) is fixedly connected to a gear 1 (212), the outer wall of the rotating column 2 (211) is fixedly connected to a friction ring 1 (213), and the output end of the motor 2 (204) is fixedly connected to the rotating column 2 (211), wherein the motor 2 (204) can drive the gear 1 (212) to rotate.

5. The precision controlled micro powder sand blasting equipment according to claim 4, characterized in that: The outer wall of the second rotating column (211) is movably connected to the second friction ring (214), the outer wall of the second friction ring (214) is fixedly connected to the second connecting plate (215), the end of the second connecting plate (215) away from the second friction ring (214) is fixedly connected to the push rod (216), the end of the push rod (216) away from the second connecting plate (215) is fixedly connected to the housing (202), wherein the push rod (216) can drive the second friction ring (214) to move.

6. The precision-controlled micro-powder sandblasting equipment according to claim 5, characterized in that: The rotating assembly (22) includes a second connecting ring (221), the inner wall of the housing (202) is rotatably connected to the second connecting ring (221) via a bearing, the outer wall of the second connecting ring (221) is provided with a slide groove (222), the outer wall of the second connecting ring (221) is fixedly connected with a second gear (223), the second gear (223) is meshed with the first gear (212), wherein the rotation of the first gear (212) can drive the position of the slide groove (222) to shift.

7. The precision controlled micro powder sand blasting equipment according to claim 6, characterized in that: The adjustment assembly (23) includes a connecting ring three (231), the outer wall of the connecting ring three (231) is fixedly connected to the outer shell (202), the inner wall of the connecting ring three (231) is fixedly connected to a sliding column (232), a connecting strip (233) is provided inside the connecting ring three (231), a circular hole one (234) is provided on the outer wall of the connecting strip (233), the inner wall of the circular hole one (234) is movably connected to the sliding column (232), a through groove (236) is provided on the outer wall of the connecting strip (233), and one end of the connecting strip (233) away from the connecting ring three (231) is fixedly connected to a connecting plate three (235), wherein the sliding column (232) can limit the movement trajectory of the connecting strip (233) and the connecting plate three (235).

8. The precision-controlled micro-powder sandblasting equipment according to claim 7, characterized in that: A connecting plate four (237) is provided inside the connecting ring three (231), and the front and rear ends of the connecting plate four (237) are fixedly connected to a slider (239), and the outer wall of the slider (239) is movably connected to the slide groove (222). A circular hole two (238) is opened on the outer wall of the connecting plate four (237), and the inner wall of the circular hole two (238) is movably connected to a limiting column (2311), and the outer wall of the limiting column (2311) is movably connected to the through groove (236). The end of the connecting plate four (237) away from the connecting ring three (231) is fixedly connected to the inner plate (2310), and the end of the elastic ring (205) away from the connecting ring one (203) is fixedly connected to the inner plate (2310), wherein the deflection of the position of the slide groove (222) can change the position of the inner plate (2310).

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