Cleaning device used after shot blasting polishing

Abstract

The utility model provides a cleaning device used after shot blasting polishing, which comprises at least one fixing plate, a telescopic assembly is rotatably connected to the fixing plate, the telescopic assembly is used for adjusting the length when a deep hole is cleaned, a fixing disc is arranged at the lower part of the telescopic assembly, a fixing rod is arranged at the lower part of the fixing disc, and a plurality of groups of brushes are arranged on the outer side wall of the fixing rod. The multiple sets of brushes are arranged to be of a spiral structure and used for increasing the contact area with hole walls, adjustment is conducted through the telescopic assembly according to holes of different depths, the brushes can go deep into the holes for cleaning, and the cleaning effect is improved through progressive cleaning in cooperation with the brushes of the spiral structure; and in addition, the removal rate of adhesive oxide skin and deformed pellets can be increased.

Description

Technical Field

[0001] This utility model relates to the field of shot peening cleaning technology, specifically to a cleaning device for shot peening and polishing. Background Technology

[0002] Shot peening is a common surface treatment technique that uses high-speed jets of fine particles (such as steel shot and glass beads) to impact the surface of materials, thereby achieving the purposes of removing burrs, improving surface finish, and strengthening the structure.

[0003] Most mechanical parts have special hole types such as deep holes and blind holes for connection, fixation, positioning and guidance. When shot peening is used to polish mechanical parts, shot peening residue will fall into the holes, which will have many negative effects on the performance of the parts (such as hindering the assembly of bolts, pins and other connecting parts, resulting in a decrease in precision) and subsequent processes (such as the residue in the holes hindering the uniformity of electroplating, spraying and other processes, resulting in coating peeling or protective failure).

[0004] In the prior art, when cleaning shot peening residue in holes, the shot peening residue in the holes is generally swept away by air blowing (i.e., high-pressure gas injection), and the residue is carried away by the shearing force of the airflow.

[0005] However, when using air blasting to remove shot peening residue, the removal rate is low (only about 60-70%) for strongly adhesive oxide scale (metal oxide scale is usually composed of a dense inner layer (such as Fe3O4) and a loose outer layer (such as Fe2O3). Shot peening impact compacts the oxide scale, causing it to mechanically interlock with the substrate, making it difficult to remove by air blasting) or deformed shot (such as steel shot) that undergoes plastic deformation after impact, changing from a spherical shape to a flat or multi-faceted shape. This increases the surface area, causing the residue to anchor in the holes of mechanical parts, and its sharp edges can penetrate into the holes, making it difficult to remove). Therefore, it still affects the performance of the parts and subsequent processes. Utility Model Content

[0006] In view of this, the present invention provides a cleaning device for shot peening and polishing. The device can be adjusted according to the hole depth by means of a telescopic component, so that the brush can penetrate into the hole for cleaning. The spiral structure of the brush can improve the cleaning effect through progressive cleaning and can improve the removal rate of adhesive oxide scale and deformed shot particles.

[0007] To solve the above-mentioned technical problems, this utility model provides a cleaning device for shot peening and polishing, including two parallel fixed plates. The two opposing surfaces of the two fixed plates are connected by bolts. A telescopic component is rotatably connected to the fixed plates. The telescopic component is used to adjust the length when cleaning deep holes. The telescopic component is set as a button-type telescopic rod for quickly adjusting the length as needed.

[0008] The telescopic assembly has a fixed plate at the bottom, and a threaded post is fixedly connected to the upper part of the fixed plate. The threaded post is connected to the inner wall of the bottom of the button-type telescopic rod by threaded engagement. A fixed rod is fixedly connected to the lower part of the fixed plate, and multiple sets of brushes are provided on the outer wall of the fixed rod.

[0009] Multiple brushes are arranged in a spiral structure to increase the contact area with the hole wall and improve the cleaning effect.

[0010] The multiple brushes under one of the fixing plates are made of nylon, which is a soft material and is used for cleaning precision parts (such as optical devices and microelectronic components) and deep hole treatment of soft material workpieces (aluminum, copper, magnesium alloys). The multiple brushes under the other fixing plate are made of steel wire, which is a hard material and is used for cleaning stubborn residues after shot peening of high-strength steel parts, removing stubborn oxides, and breaking glass.

[0011] A motor is installed at the upper end of the push-button telescopic rod. The output shaft of the motor is connected to the upper end of the push-button telescopic rod via a coupling. A fixing frame is connected above the motor and on the upper part of the positioning plate. The fixing frame is bolted to the upper part of the positioning plate. The motor is bolted to the inner wall of the fixing frame. The fixing frame is used to support the motor and prevent the output shaft of the motor from rotating. A handle is installed on the upper part of the fixing frame.

[0012] The motor is set as a miniature brushless motor, which can maintain stable torque output over a wide speed range. This ensures that the brush maintains constant contact force at different speeds (such as low-speed fine cleaning and high-speed deep cleaning), avoiding brush slippage or overload due to speed changes, and improving cleaning efficiency and uniformity.

[0013] The beneficial effects of the above-mentioned technical solution of this utility model are as follows:

[0014] 1. Highly efficient removal of stubborn residue: The spiral structure brush increases the contact area of ​​the hole walls, combined with the stable torque output of the micro brushless motor, to achieve progressive cleaning of "front-end pressure and rear-end refinement," increasing the removal rate of adhesive oxide scale and deformed particles to over 90%. The steel wire brush uses high-shear peeling (local pressure > 5N / mm) 2 It can break hard residues such as sintered oxide scale, and the nylon brush avoids scratching precision workpieces through elastic deformation.

[0015] 2. Multi-scene adaptability: The dual fixed plate design provides two types of brushes to choose from: nylon brushes are suitable for soft materials / precision parts, and wire brushes are suitable for high-strength steel parts. The button-type telescopic rod can clean blind holes / deep holes of different depths.

[0016] 3. Improved ease of operation: The detachable structure (threaded post + bolt connection) allows for quick brush replacement to adapt to different working conditions. The miniature brushless motor (built-in lithium battery) enables convenient handheld operation, catering to both fine and deep cleaning needs.

[0017] 4. Optimized structural stability: The spiral brush adopts a progressive pressure distribution design to avoid jamming caused by local overload and improve cleaning speed.

[0018] 5. Environmentally friendly features: Mechanical cleaning replaces air blowing, which improves the cleaning speed while reducing compressed air consumption. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the button-type telescopic rod and its components according to this utility model.

[0021] Figure 3 This is a schematic diagram of the fixed disk and its components of the present invention.

[0022] Figure 4 This is a schematic diagram of a partial component structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the first cylindrical structure of this utility model;

[0024] Figure 6 This is a schematic diagram of the elastic sheet and its components according to the present invention.

[0025] In the diagram: 101, fixing plate; 102, fixing disc; 103, fixing rod; 104, brush;

[0026] 200. Button-operated telescopic rod; 201. First cylinder; 202. Support rod; 203. Elastic sheet; 204. Button; 205. Second cylinder;

[0027] 301. Miniature brushless motor; 302. Mounting bracket; 303. Handle;

[0028] 401. Threaded column. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-6 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0030] A cleaning device for use after shot peening and polishing, such as Figure 1 As shown: It includes two parallel fixed plates 101, and the two opposing surfaces of the two fixed plates 101 are connected by bolts. A telescopic component is rotatably connected to the fixed plate 101. The telescopic component is used to adjust the length when cleaning deep holes. The telescopic component is set as a button-type telescopic rod 200, which is used to quickly adjust the length as needed. When in use, you only need to press the button 204 and pull to adjust, which can improve the adjustment speed and save costs.

[0031] like Figure 4 , 5 As shown in Figure 6, the structure of the button-type telescopic rod 200 includes a first cylinder 201 rotatably connected to a fixed plate 101 via a bearing, so that the first cylinder 201 can be supported on the fixed plate 101 and can rotate on the fixed plate 101. A support rod 202 is fixedly connected to the inner side wall of the first cylinder 201, and an elastic sheet 203 is connected to the outer side wall of the support rod 202. Buttons 204 are fixedly connected to both sides of the elastic sheet 203. Guide holes are opened on the outer side wall of the first cylinder 201 corresponding to the positions of the two buttons 204. The buttons 204 are slidably connected in the guide holes. A second cylinder 205 is slidably connected to the outer side wall of the first cylinder 201. A plurality of limiting holes are evenly opened on the outer side wall of the second cylinder 205. The size of the limiting holes is the same as the size of the guide holes.

[0032] In use, press and hold button 204 to deform elastic sheet 203, so that button 204 is pressed into guide hole. Pull second cylinder 205 to slide on outer wall of first cylinder 201. After adjusting to a suitable position, release button 204 so that button 204 pops into limit hole, so that second cylinder 205 is limited.

[0033] like Figure 1 , 2As shown in Figure 3: A fixed plate 102 is provided at the lower part of the telescopic assembly, that is, the fixed plate 102 is connected to the end of the button-type telescopic rod 200. A threaded post 401 is fixedly connected to the upper part of the fixed plate 101. The threaded post 401 is connected to the inner side of the bottom of the button-type telescopic rod 200 by threaded engagement (that is, connected to the inner side wall of the bottom end of the second cylinder 205 by threaded engagement). The fixed plate 102 can be quickly disassembled and assembled during maintenance or replacement. When in use, a locking washer can be fitted on the threaded post 401 to prevent the threaded post 401 from loosening due to the high-speed rotation of the brush 104 during cleaning.

[0034] A fixing rod 103 is fixedly connected to the lower part of the fixing plate 102. Multiple sets of brushes 104 are fixedly connected to the outer wall of the fixing rod 103. The multiple sets of brushes 104 can be rotated to clean stubborn residues formed in special hole types such as deep holes and blind holes on the workpiece. Multiple sets of brushes 104 are also provided at the bottom of the fixing rod 103 for cleaning the bottom surface of special hole types such as deep holes and blind holes.

[0035] like Figure 3 As shown: Multiple sets of brushes 104 are set in a spiral structure to increase the contact area with the hole wall, improve the cleaning effect, and make the front brush 104 (the first contact area) bear greater pressure, while the subsequent brush bristles gradually refine the cleaning, avoiding local overload or jamming caused by simultaneous pressure, and making the residue continuously pushed out of the hole to avoid secondary deposition caused by "stirring in place".

[0036] The multiple sets of brushes 104 below one of the fixing plates 101 are made of nylon. Because of its softness, it is used for cleaning precision parts (such as optical devices and microelectronic components) and deep hole treatment of soft material workpieces (aluminum, copper, magnesium alloys). Nylon can avoid scratching the workpiece surface or the inner wall of the hole through elastic deformation under contact pressure. Furthermore, nylon has a low tendency to generate static electricity (surface resistivity 10⁻⁶). 12 -10 14 (Ω·cm), reducing the secondary adhesion of adsorbent residues, allowing the brushed residues to be discharged out of the holes along with the spiral structure.

[0037] The multiple sets of brushes 104 below the other fixed plate 101 are made of steel wire. Because of its hard material, it is used to remove stubborn residues after shot peening of high-strength steel parts, stubborn oxides, broken glass, etc. Through its high shear peeling, the hardness of stainless steel wire (HV400-600) can apply a local pressure of >5N / mm2 to hard residues (such as residues after shot peening, sintered oxide scale, etc.), thereby improving the cleaning rate. Moreover, the steel wire can still maintain a sharp tip after wear, and continue to provide effective cutting force.

[0038] like Figure 1 , 4As shown: A motor is installed at the upper end of the push-button telescopic rod 200. The output shaft of the motor is connected to the upper end of the push-button telescopic rod 200 through a coupling, so that the rotation of the motor output shaft drives the push-button telescopic rod 200 and the multiple sets of brushes 104 below it to rotate, thereby improving the cleaning effect of residue. A fixing frame 302 is connected above the motor and on the upper part of the positioning plate. The fixing frame 302 is bolted to the upper part of the positioning plate. The motor is bolted to the inner wall of the fixing frame 302. The fixing frame 302 is used to support the motor and prevent the motor output shaft from rotating on its own. A handle 303 is bolted to the upper part of the fixing frame 302, which makes it easy for the staff to operate by hand during cleaning, improving the convenience and controllability of operation.

[0039] like Figure 1 , 4 As shown: The motor is a miniature brushless motor 301. The miniature brushless motor 301 uses a built-in or external rechargeable battery (such as a lithium battery) for easy carrying and operation. It enables the miniature brushless motor 301 to maintain stable torque output over a wide speed range, ensuring that the brush 104 maintains a constant contact force at different speeds (such as low-speed fine cleaning and high-speed deep cleaning). This avoids slippage or overload of the brush 104 due to changes in speed, improving cleaning efficiency and uniformity. Furthermore, the use of the miniature brushless motor 301 eliminates physical contact wear, extending its service life and reducing the frequency of downtime maintenance.

[0040] When in use, adjust the button-type telescopic rod 200 according to the hole to be cleaned, adjust the second cylinder 205 to the appropriate position, turn on the micro brushless motor 301, so that the output shaft of the micro brushless motor 301 rotates and drives multiple sets of brushes 104 to rotate accordingly. The operator can clean the hole to be cleaned by holding the handle 303, or clean the surface of the workpiece by holding it horizontally.

[0041] Before cleaning, select a suitable brush 104 based on the adhesion of the residue. Remove the two fixing plates 101 with bolts to separate them. Then, use the appropriate brush 104 to clean the area that needs to be cleaned.

[0042] When carrying or storing, retract the second cylinder 205 of the push-button telescopic rod 200, and disassemble the fixing bracket 302, the miniature brushless motor 301, and the threaded column 401. Then, place them in the toolbox or tool bag in sequence to make them easy to carry and store.

[0043] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0044] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A cleaning device for shot peening, characterized by: Including at least one fixed plate (101), the fixed plate (101) is rotatably connected with telescopic assembly, the telescopic assembly is used for length adjustment when cleaning deep hole; The lower part of the telescopic assembly is provided with a fixed disc (102), the lower part of the fixed disc (102) is provided with a fixed rod (103), and the outer side wall of the fixed rod (103) is provided with a plurality of brush (104); A plurality of brush (104) is arranged in a spiral structure, which is used for increasing the contact area with the hole wall.

2. The cleaning device for shot peening after polishing according to claim 1, wherein: The telescopic assembly is arranged as a button type telescopic rod (200), which is used for quickly adjusting the length as required.

3. The device for cleaning after shot peening according to claim 2, characterized in that: The upper end of the button type telescopic rod (200) is provided with a motor, the output shaft of the motor is connected with the button type telescopic rod (200) through a shaft coupling, a fixed frame (302) is connected above the motor and on the upper part of the positioning plate, which is used for avoiding the output shaft of the motor from rotating and self-rotating.

4. The cleaning device for shot peening after polishing according to claim 3, wherein: The motor is arranged as a micro brushless motor (301), so that the micro brushless motor (301) can keep torque stable output in a wider speed range.

5. The device for cleaning after shot peening according to claim 1, characterized in that: The fixed plate (101) is arranged as two, wherein the plurality of brush (104) below one of the fixed plate (101) is arranged as nylon material, and the plurality of brush (104) below the other fixed plate (101) is arranged as steel wire material.

6. The device for cleaning after shot peening according to claim 1, characterized in that: The upper part of the fixed disc (102) is provided with a threaded column (401), and the threaded column (401) is connected on the inner side wall of the bottom end of the button type telescopic rod (200) through thread cooperation.

7. The device for cleaning after shot peening according to claim 5, characterized in that: The two fixed plates (101) are arranged in parallel, and the two opposite surfaces of the two fixed plates (101) are connected through bolts.

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