Surface treatment device for precision hardware machining

Abstract

The invention belongs to the field of hardware machining, and particularly relates to a surface treatment device for precision hardware machining, which comprises a base, two side plates symmetrically and fixedly connected to the top of the base, and a supporting assembly for placing an iron plate for surface treatment; the clamping assembly is used for clamping and fixing the iron plate subjected to surface treatment; the rust removal assembly is used for cleaning rust and large scale on the iron plate; the crushing assembly is used for crushing the cleaned large scale; according to the surface treatment device for precision hardware machining, a shaver and a grinding block abut against the top of an iron plate through the arranged first spring, the shaver is controlled to move transversely through a motor, large rust scales on the iron plate are shoveled up, and through cooperation of a first gear and a rack, the grinding block is driven to rotate while the shaver and the grinding block move transversely; and the razor and the polishing block are rotated, so that the polishing block polishes residual rust stains on the large rust scales along with the removal of the large rust scales on the iron plate by the razor, and the treatment effect on the surface of the iron plate is improved.

Description

Technical Field

[0001] This invention belongs to the field of hardware processing, specifically a surface treatment device for precision hardware processing. Background Technology

[0002] Hardware parts, also known as small hardware or hardware accessories, refer to various metal utensils made from metals such as iron, steel, and aluminum through physical processing such as forging, rolling, and cutting. Hardware parts include mold hardware parts, mechanical hardware parts, daily-use hardware parts, shop window hardware parts, marine hardware parts, building hardware parts, aerospace hardware parts, and security products. Most small hardware products are not final consumer goods, but rather supporting products, semi-finished products, and tools used in the production process of industrial manufacturing. Only a small portion of daily-use hardware products are essential consumer tools for people's lives. Iron plates in hardware parts can rust if not stored properly, requiring surface treatment during processing.

[0003] Existing technologies can only remove large pieces of rust from iron plates using a razor. However, after the large pieces of rust are removed, rust residue remains at the bottom. Razors are not very effective at removing rust from iron plates. After cleaning with a razor, the iron plate still needs to be finely polished, making the surface treatment work very cumbersome. Furthermore, the rust powder and rust scale that are polished off will scatter on the workbench, making it difficult to clean. In addition, large pieces of thick rust scale take up a lot of space after being separated and accumulated, requiring frequent cleaning of the waste tank and increasing the burden on the operators. Therefore, this invention provides a surface treatment device for precision hardware processing. Summary of the Invention

[0004] To address the shortcomings of existing technologies, which only allow for the removal of large rust patches from iron plates using a razor, but leave rust residue at the base after removal, and where the razor's effectiveness in removing rust is limited, the iron plate still requires additional fine grinding after razor cleaning. This makes the surface treatment process cumbersome, and the rust powder and scale from grinding scatter on the worktable, making cleaning difficult. Furthermore, the large, thick rust patches take up considerable space after separation and accumulation, requiring frequent cleaning of the waste bin and increasing the workload for operators. Therefore, this invention proposes a surface treatment device for precision hardware processing.

[0005] The technical solution adopted by this invention to solve its technical problem is as follows: A surface treatment device for precision hardware processing, comprising a base, wherein two side plates are symmetrically fixedly connected to the top of the base, and further comprising:

[0006] Support components for placing surface-treated iron plates;

[0007] Clamping assembly for clamping and fixing surface-treated iron plates;

[0008] Rust removal kit, used to clean rust and large pieces of rust from iron plates;

[0009] The crushing component is used to crush large pieces of rust scale that have been removed during cleaning.

[0010] Preferably, the support assembly includes four hydraulic cylinders, which are symmetrically and fixedly installed in the base. The output ends of the four hydraulic cylinders are fixedly connected to a support plate. Two brackets are symmetrically and fixedly connected to the top of the support plate. A placement platform is rotatably connected between the two brackets. A rubber pad is provided on the top of the support plate and below the placement platform. Two partitions are symmetrically and fixedly connected to the top of the placement platform.

[0011] Preferably, the clamping assembly includes a bidirectional lead screw, which is rotatably connected inside the placement platform. The outer wall of the bidirectional lead screw is connected to two second sliders through a lead screw and nut pair. The two second sliders are symmetrically arranged and slidably connected to the placement platform. The top of each of the two second sliders is fixedly connected to a clamping plate. One end of the bidirectional lead screw passes through the placement platform and is fixedly connected to a crank handle.

[0012] Preferably, the rust removal assembly includes a top plate, which is fixedly installed on top of two side plates. A motor is fixedly connected to one side of the top plate, and the output end of the motor extends into the interior of the top plate and is fixedly connected to a transmission screw. A first slider is connected to the outer wall of the transmission screw via a screw-nut pair. The first slider is slidably connected to the top plate. A first rotating shaft is rotatably connected to the bottom of the first slider. A mounting plate is fixedly connected to the bottom of the first rotating shaft. Two sets of sliding shafts are symmetrically slidably connected to the inner wall of the mounting plate. A limit block is fixedly connected to the top of the sliding shaft. A razor is fixedly connected to the bottom of the sliding shaft. A first spring is sleeved on the outer wall of the sliding shaft. The top of the first spring is fixedly connected to the mounting plate, and the bottom of the first spring is fixedly connected to the razor. Both sides of the razor are set as bevels.

[0013] Preferably, a fixing block is fixedly connected to the outer wall of the side plate away from the bracket, a locking block is slidably connected to the inner wall of the fixing block, the bottom of the locking block is set as an inclined surface, a second spring is fixedly connected inside the fixing block, one end of the second spring is fixedly connected to the locking block, and a waste groove is opened on the top of the base.

[0014] Preferably, a guide plate is fixedly connected to one side of the support plate and above the waste trough. The guide plate is arc-shaped and has a discharge trough inside.

[0015] Preferably, a polishing block is fixedly connected to the bottom of the razor.

[0016] Preferably, a first gear is fixedly connected to the outer wall of the first rotating shaft, and a rack is fixedly connected between the two side plates, with the first gear meshing with the rack.

[0017] Preferably, the inner wall of the waste trough is rotatably connected with three second rotating shafts at equal intervals, one end of each of the three second rotating shafts is fixedly connected with a second gear, the three second gears are meshed with each other, and a number of crushing teeth are fixedly connected at equal intervals on the outer wall of the second rotating shafts, and the outer wall of the transmission screw is provided with a linkage unit.

[0018] Preferably, the linkage unit includes a first synchronous pulley, which is fixedly installed on the outer wall of the transmission screw, and a second synchronous pulley is fixedly connected to the outer wall of the second rotating shaft located in the middle. The first synchronous pulley and the second synchronous pulley are connected by a synchronous belt drive.

[0019] The beneficial effects of this invention are as follows:

[0020] 1. The surface treatment device for precision hardware processing described in this invention uses a first spring to press a razor and a grinding block against the top of an iron plate. A motor controls the razor to move laterally, scraping off large pieces of rust from the iron plate. Through the cooperation of a first gear and a rack, the razor and the grinding block rotate simultaneously as they move laterally. As the razor removes large pieces of rust from the iron plate, the grinding block polishes the rust residue beneath the large pieces of rust, thus improving the surface treatment effect on the iron plate.

[0021] 2. The surface treatment device for precision hardware processing described in this invention, when the support plate moves downward controlled by the hydraulic cylinder, drives the placement table to move downward. When the placement table passes the clamping block, it is blocked by the straight surface of the top of the clamping block. Under the pull of the clamping block, the placement table rotates and tilts within the support, causing the iron plate to rotate and tilt as well. This facilitates the large pieces of rust removed from the iron plate to slide down the inclined surface. The guide plate blocks the large pieces of rust sliding down the iron plate, preventing them from sliding out of the receiving range of the waste trough due to inertia. As the support plate continues to move downward, the tilt angle of the placement table becomes larger and larger. When it disengages from the clamping block, it rotates downward and resets under its own gravity.

[0022] 3. The surface treatment device for precision hardware processing described in this invention, through the cooperation of the first synchronous wheel and the second synchronous wheel, controls the shaving blade and the grinding block to move laterally to remove rust from the surface of the iron plate, causing the second rotating shaft in the middle position to rotate. Through the cooperation of the three second gears, the three sets of crushing teeth rotate synchronously, crushing the large pieces of rust that fall into the waste tank, thereby reducing the volume of the large pieces of rust, preventing the waste tank from being quickly filled, and saving the operators the trouble of frequent cleaning. Attached Figure Description

[0023] The invention will now be further described with reference to the accompanying drawings.

[0024] Figure 1 This is a perspective view of the base and top plate of the present invention in use;

[0025] Figure 2 This is a cross-sectional view of the placement platform and the bidirectional lead screw of the present invention in use;

[0026] Figure 3 This is a perspective view of the support plate and the placement platform of the present invention in use;

[0027] Figure 4 This is an exploded view of the placement platform and clamping plate of the present invention in use;

[0028] Figure 5 This is a perspective view of the transmission lead screw and the second rotating shaft of the present invention in use;

[0029] Figure 6 This is the present invention. Figure 2 Enlarged view of point A in the middle;

[0030] Figure 7 This is the present invention. Figure 2 Enlarged view of point B in the middle;

[0031] In the diagram: 1. Base; 2. Side plate; 3. Top plate; 4. Motor; 5. Drive screw; 6. First slider; 7. First rotating shaft; 8. Mounting plate; 9. Sliding shaft; 10. First spring; 11. Limiting block; 12. Razor; 13. Grinding block; 14. First gear; 15. Rack; 16. Hydraulic cylinder; 17. Support plate; 18. Bracket; 19. Placement platform; 20. Partition plate; 21. Double-acting screw; 22. Second slider; 23. Clamping plate; 24. Handle; 25. Fixing block; 26. Second spring; 27. Locking block; 28. Waste trough; 29. ​​Second rotating shaft; 30. Crushing teeth; 31. Second gear; 32. First synchronous pulley; 33. Second synchronous pulley; 34. Synchronous belt; 35. Rubber pad; 36. Guide plate; 37. Discharge trough. Detailed Implementation

[0032] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0033] like Figures 1 to 7As shown, the present invention provides a technical solution: a surface treatment device for precision hardware processing, comprising a base 1, with two side plates 2 symmetrically fixedly connected to the top of the base 1, and further comprising: a support assembly for placing the surface-treated iron plate; a clamping assembly for clamping and fixing the surface-treated iron plate; a rust removal assembly for cleaning rust and large pieces of rust from the iron plate; and a crushing assembly for crushing the large pieces of rust removed from the plate. The support assembly includes four hydraulic cylinders 16, which are symmetrically fixedly installed inside the base 1. The output ends of the four hydraulic cylinders 16 are fixedly connected to a support plate 17. Two brackets 18 are symmetrically fixedly connected to the top of the support plate 17, and a placement platform 19 is rotatably connected between the two brackets 18. A rubber pad 35 is provided on the top of the support plate 17 and below the placement platform 19. Two partitions 20 are symmetrically fixedly connected to the top of the placement platform 19. The clamping assembly includes a bidirectional lead screw 21, which is rotatably connected inside the placement platform 19. Two second sliders 2 are connected to the outer wall of the bidirectional lead screw 21 through a lead screw and nut pair. 2. Two second sliders 22 are symmetrically arranged and slidably connected to the placement platform 19. A clamping plate 23 is fixedly connected to the top of each of the two second sliders 22. One end of the bidirectional lead screw 21 passes through the placement platform 19 and is fixedly connected to a crank handle 24. The rust removal assembly includes a top plate 3, which is fixedly installed on the top of the two side plates 2. A motor 4 is fixedly connected to one side of the top plate 3. The output end of the motor 4 extends into the interior of the top plate 3 and is fixedly connected to a transmission lead screw 5. The outer wall of the transmission lead screw 5 is connected to a first slider 6 via a screw-nut pair. A slider 6 is slidably connected to the top plate 3. The bottom of the first slider 6 is rotatably connected to a first rotating shaft 7. The bottom of the first rotating shaft 7 is fixedly connected to a mounting plate 8. Two sets of sliding shafts 9 are symmetrically slidably connected to the inner wall of the mounting plate 8. A limit block 11 is fixedly connected to the top of the sliding shaft 9. A razor 12 is fixedly connected to the bottom of the sliding shaft 9. A first spring 10 is sleeved on the outer wall of the sliding shaft 9. The top of the first spring 10 is fixedly connected to the mounting plate 8. The bottom of the first spring 10 is fixedly connected to the razor 12. Both sides of the razor 12 are set as inclined surfaces.

[0034] Using the above technical solution, the iron plate is placed on the placement platform 19. The crank handle 24 is turned, which drives the bidirectional lead screw 21 to rotate, causing the two second sliders 22 to move closer to each other, which in turn drives the two clamping plates 23 to move closer to each other. The two clamping plates 23 clamp and fix the iron plate. The hydraulic cylinder 16 is started, which drives the support plate 17 to move upward, causing the placement platform 19 to move upward, which in turn drives the iron plate to move upward. With the help of the first spring 10, the razor 12 is pressed against the iron plate. The motor 4 is started, which drives the transmission lead screw 5 to rotate, causing the first slider 6 to move laterally, which in turn drives the first rotating shaft 7 to move laterally, causing the mounting plate 8 to move laterally, which in turn drives the razor 12 to move laterally, thus scraping off the large pieces of rust on the iron plate.

[0035] Specifically, a fixing block 25 is fixedly connected to the outer wall of the side plate 2 away from the bracket 18, and a locking block 27 is slidably connected to the inner wall of the fixing block 25. The bottom of the locking block 27 is set as an inclined surface. A second spring 26 is fixedly connected inside the fixing block 25. One end of the second spring 26 is fixedly connected to the locking block 27. A waste trough 28 is opened on the top of the base 1. A guide plate 36 is fixedly connected to one side of the support plate 17 and above the waste trough 28. The guide plate 36 is set as an arc and a discharge trough 37 is opened inside the guide plate 36.

[0036] Through the above technical solution, when the support plate 17 and the placement platform 19 move upward, one side of the placement platform 19 presses against the inclined surface of the bottom of the locking block 27. Under the pressure of the placement platform 19, the locking block 27 is pushed into the fixed block 25, pressing the second spring 26. When the placement platform 19 continues to move upward, it is released from the pressure of the placement platform 19. Under the action of the second spring 26, the locking block 27 is reset. After the rust removal of the iron plate is completed, the support plate 17 is controlled to move downward by the hydraulic cylinder 16, which drives the placement platform 19 to move downward. When the placement platform 19 passes the locking block 27, it is blocked by the straight surface of the top of the locking block 27. Under the pull of the locking block 27, the placement platform 19 rotates and tilts within the bracket 18, causing the iron plate to rotate and tilt as well. Large pieces of rust that are easily removed from the iron plate slide down the inclined surface. The sliding rust pieces are blocked by the guide plate 36, preventing them from sliding out of the receiving range of the waste trough 28 due to inertia. The rust pieces blocked by the guide plate 36 move downward along the arc of the guide plate 36. When they pass the discharge trough 37, they pass through the discharge trough 37 and fall into the waste trough 28. As the support plate 17 continues to move downward, the tilt angle of the placement platform 19 becomes larger and larger. When it disengages from the locking block 27, it rotates downward and resets under its own weight. The bottom of the placement platform 19 is protected by the rubber pad 35 to prevent the placement platform 19 from colliding hard with the support plate 17. This process is repeated, and after each rust removal of the iron plate, the removed rust pieces can be separated and accumulated.

[0037] Specifically, a polishing block 13 is fixedly connected to the bottom of the razor 12; a first gear 14 is fixedly connected to the outer wall of the first rotating shaft 7; a rack 15 is fixedly connected between the two side plates 2; and the first gear 14 and the rack 15 are meshed together.

[0038] Through the above technical solution, the first spring 10 is set to make the grinding block 13 stick to the surface of the iron plate. When the razor 12 moves laterally, it drives the grinding block 13 to move laterally. Through the cooperation of the first gear 14 and the rack 15, the first slider 6 moves laterally and drives the first rotating shaft 7 to rotate, so that the razor 12 and the grinding block 13 rotate. Thus, as the razor 12 removes large pieces of rust from the iron plate, the grinding block 13 grinds the rust residue under the large pieces of rust, improving the treatment effect on the surface of the iron plate.

[0039] Specifically, three second rotating shafts 29 are equidistantly rotatably connected to the inner wall of the waste trough 28. A second gear 31 is fixedly connected to one end of each of the three second rotating shafts 29. The three second gears 31 are meshed with each other. Several crushing teeth 30 are equidistantly fixedly connected to the outer wall of the second rotating shaft 29. A linkage unit is provided on the outer wall of the transmission screw 5. The linkage unit includes a first synchronous pulley 32, which is fixedly installed on the outer wall of the transmission screw 5. A second synchronous pulley 33 is fixedly connected to the outer wall of the second rotating shaft 29 located in the middle. The first synchronous pulley 32 and the second synchronous pulley 33 are connected by a synchronous belt 34.

[0040] Through the above technical solution, the transmission screw 5 rotates while driving the first synchronous wheel 32 to rotate. Through the set synchronous belt 34, it drives the second synchronous wheel 33 to rotate, causing the second rotating shaft 29 in the middle to rotate. Through the cooperation of the three second gears 31, the second rotating shaft 29 in the middle can drive the other two second rotating shafts 29 to rotate synchronously. This causes the three sets of crushing teeth 30 to rotate synchronously, crushing the large pieces of rust that fall into the waste trough 28. This reduces the volume of the large pieces of rust, prevents the waste trough 28 from being quickly filled, saves the operators the trouble of frequent cleaning, and makes the crushed large pieces of rust easier to recycle.

[0041] In use, place the iron plate on the placement platform 19, turn the crank 24 to rotate the double-acting screw 21, causing the two second sliders 22 to move closer together, which in turn causes the two clamping plates 23 to move closer together. The two clamping plates 23 clamp and fix the iron plate. Start the hydraulic cylinder 16 to move the support plate 17 upward, which in turn moves the placement platform 19 upward, causing the iron plate to move upward. When the support plate 17 and the placement platform 19 move upward, one side of the placement platform 19 presses against the inclined surface at the bottom of the locking block 27. Under the pressure of the placement platform 19, the locking block 27 is pushed into the fixing block 25, compressing the second spring 26. When the placement platform 19 continues to move upward, it is released from the pressure of the placement platform 19. Under the action of the second spring 26, the locking block 27 returns to its original position. With the cooperation of spring 10, the razor 12 is pressed against the iron plate. The motor 4 is started, driving the transmission screw 5 to rotate, causing the first slider 6 to move laterally, which in turn causes the first rotating shaft 7 to move laterally, resulting in the mounting plate 8 moving laterally and the razor 12 moving laterally. This removes large pieces of rust from the iron plate. The first spring 10 keeps the grinding block 13 pressed against the surface of the iron plate. As the razor 12 moves laterally, it also drives the grinding block 13 to move laterally. Through the cooperation of the first gear 14 and rack 15, the first slider 6 moves laterally while simultaneously rotating the first rotating shaft 7, causing the razor 12 and grinding block 13 to rotate. Thus, as the razor 12 removes large pieces of rust from the iron plate, the grinding block 13 polishes the remaining rust beneath, thereby improving the surface treatment efficiency of the iron plate. As a result, after the rust removal of the iron plate is completed, the hydraulic cylinder 16 controls the support plate 17 to move downward, driving the placement platform 19 to move downward. When the placement platform 19 passes the locking block 27, it is blocked by the straight surface of the top of the locking block 27. Under the pull of the locking block 27, the placement platform 19 rotates and tilts within the bracket 18, causing the iron plate to rotate and tilt as well. This facilitates the large pieces of rust removed from the iron plate to slide down the inclined surface. The sliding large pieces of rust are blocked by the guide plate 36 and move downward along the arc surface of the guide plate 36. When passing the discharge chute 37, they pass through the discharge chute 37 and fall into the waste chute 28. As the support plate 17 continues to move downward, the tilt angle of the placement platform 19 becomes larger and larger. When it disengages from the locking block 27, it rotates downward and resets under its own gravity. The rubber pad 35 protects the bottom of the placement platform 19, preventing the placement platform 19 from colliding hard with the support plate 17. This process is repeated, and after each rust removal of the iron plate, the large pieces of rust removed can be separated and accumulated. When the transmission screw 5 rotates, it drives the first synchronous wheel 32 to rotate. Through the set synchronous belt 34, it drives the second synchronous wheel 33 to rotate, causing the second rotating shaft 29 in the middle to rotate. Through the cooperation of the three second gears 31, the rotation of the second rotating shaft 29 in the middle can drive the other two second rotating shafts 29 to rotate synchronously. This causes the three sets of crushing teeth 30 to rotate synchronously, crushing the large pieces of rust that fall into the waste trough 28, thereby reducing the volume of the large pieces of rust and preventing the waste trough 28 from being quickly filled, saving the operators the trouble of frequent cleaning.

[0042] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0043] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A surface treatment device for precision hardware processing, comprising a base (1), wherein two side plates (2) are symmetrically fixedly connected to the top of the base (1), characterized in that, Also includes: Support components for placing surface-treated iron plates; Clamping assembly for clamping and fixing surface-treated iron plates; Rust removal kit, used to clean rust and large pieces of rust from iron plates; The crushing component is used to crush large pieces of rust scale that have been removed during cleaning.

2. The surface treatment device for precision hardware processing according to claim 1, characterized in that, The support assembly includes four hydraulic cylinders (16), which are symmetrically fixedly installed in the base (1). The output ends of the four hydraulic cylinders (16) are fixedly connected to a support plate (17). Two brackets (18) are symmetrically fixedly connected to the top of the support plate (17). A placement platform (19) is rotatably connected between the two brackets (18). A rubber pad (35) is provided on the top of the support plate (17) and below the placement platform (19). Two partitions (20) are symmetrically fixedly connected to the top of the placement platform (19).

3. The surface treatment device for precision hardware processing according to claim 2, characterized in that, The clamping assembly includes a bidirectional lead screw (21), which is rotatably connected inside the placement platform (19). The outer wall of the bidirectional lead screw (21) is connected to two second sliders (22) through a lead screw and nut pair. The two second sliders (22) are symmetrically arranged and are slidably connected to the placement platform (19). The top of each of the two second sliders (22) is fixedly connected to a clamping plate (23). One end of the bidirectional lead screw (21) passes through the placement platform (19) and is fixedly connected to a crank handle (24).

4. The surface treatment apparatus for precision hardware processing according to claim 3, characterized in that, The rust removal assembly includes a top plate (3), which is fixedly installed on the top of two side plates (2). A motor (4) is fixedly connected to one side of the top plate (3). The output end of the motor (4) extends into the interior of the top plate (3) and is fixedly connected to a transmission screw (5). The outer wall of the transmission screw (5) is connected to a first slider (6) through a screw nut pair. The first slider (6) is slidably connected to the top plate (3). A first rotating shaft (7) is rotatably connected to the bottom of the first slider (6). The bottom of the ) is fixedly connected to an installation plate (8), and two sets of sliding shafts (9) are symmetrically slidably connected to the inner wall of the installation plate (8). The top of the sliding shaft (9) is fixedly connected to a limit block (11), and the bottom of the sliding shaft (9) is fixedly connected to a razor (12). The outer wall of the sliding shaft (9) is fitted with a first spring (10). The top of the first spring (10) is fixedly connected to the installation plate (8), and the bottom of the first spring (10) is fixedly connected to the razor (12). Both sides of the razor (12) are set as inclined surfaces.

5. The surface treatment apparatus for precision hardware processing according to claim 4, characterized in that, A fixing block (25) is fixedly connected to the outer wall of the side plate (2) away from the bracket (18). A locking block (27) is slidably connected to the inner wall of the fixing block (25). The bottom of the locking block (27) is set as an inclined surface. A second spring (26) is fixedly connected inside the fixing block (25). One end of the second spring (26) is fixedly connected to the locking block (27). A waste trough (28) is opened on the top of the base (1).

6. The surface treatment apparatus for precision hardware processing according to claim 5, characterized in that, A guide plate (36) is fixedly connected to one side of the support plate (17) and above the waste trough (28). The guide plate (36) is arc-shaped and has a discharge trough (37) inside.

7. The surface treatment apparatus for precision hardware processing according to claim 6, characterized in that, A polishing block (13) is fixedly connected to the bottom of the razor (12).

8. The surface treatment apparatus for precision hardware processing according to claim 7, characterized in that, A first gear (14) is fixedly connected to the outer wall of the first rotating shaft (7), and a rack (15) is fixedly connected between the two side plates (2). The first gear (14) and the rack (15) are meshed together.

9. The surface treatment apparatus for precision hardware processing according to claim 8, characterized in that, The inner wall of the waste trough (28) is equidistantly connected to three second rotating shafts (29), one end of each of the three second rotating shafts (29) is fixedly connected to a second gear (31), the three second gears (31) are meshed with each other, and a number of crushing teeth (30) are fixedly connected at equal intervals on the outer wall of the second rotating shaft (29), and a linkage unit is provided on the outer wall of the transmission screw (5).

10. A surface treatment apparatus for precision hardware processing according to claim 9, characterized in that, The linkage unit includes a first synchronous pulley (32), which is fixedly installed on the outer wall of the transmission screw (5). The outer wall of the second rotating shaft (29) located in the middle is fixedly connected to a second synchronous pulley (33). The first synchronous pulley (32) and the second synchronous pulley (33) are connected by a synchronous belt (34).

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