An automatic sandblasting device for the special-shaped inner surface of the inner cavity shell of precision hardware parts

Abstract

The utility model relates to the technical field of sandblasting devices, and in particular to an automatic sandblasting device for the irregular inner surface of the inner cavity shell of a precision hardware component, comprising a support seat, a positioning mechanism movably installed on the upper end of the support seat, a vertical plate fixedly installed on the rear end of the support seat, two No. 1 electric telescopic rods embedded and installed in the vertical plate, a top plate fixedly installed on the output ends of the two No. 1 electric telescopic rods, a top plate having a slide groove penetrating up and down at the upper end of the top plate, a slider slidably connected in the slide groove, a sand collecting bucket fixedly installed on the upper end of the slider, and a sandblasting tube inserted and connected at the lower end of the sand collecting bucket. The automatic sandblasting device for the irregular inner surface of the inner cavity shell of a precision hardware component described in the utility model can firmly fix irregular precision hardware parts to prevent the irregular precision hardware parts from shaking during the sandblasting process, and at the same time, the entire inner surface of the hardware parts is sandblasted, with a better rust removal effect and more thorough rust removal.

Description

Technical Field

[0001] The utility model relates to the technical field of sandblasting devices, in particular to an automatic sandblasting device for the special-shaped inner surface of an inner cavity shell of a precision hardware component. Background Art

[0002] In the current industrial manufacturing field, precision hardware parts are the core components of various mechanical equipment and instruments. Their performance and processing quality directly affect the operating efficiency and stability of the overall equipment. As a typical precision hardware part, the complex and irregular internal surface treatment of the inner cavity shell has become a key link to improve product quality and ensure normal function.

[0003] Although sandblasting technology has been widely used in metal surface cleaning, rust removal, and strengthening, it still faces many challenges when facing the task of processing the special-shaped inner surface of the inner cavity shell: First, due to the diversity of the inner cavity shell shape, traditional fixture design is often difficult to achieve effective fixation, resulting in easy shaking or displacement of parts during the sandblasting process, which will not only affect the uniformity and consistency of the sandblasting effect, but also increase operational risks and pose a threat to production safety; second, the special-shaped inner surface structure is complex and uneven, and conventional sandblasting equipment and processes are difficult to fully cover, which easily forms cleaning dead corners, resulting in incomplete rust removal, affecting the anti-corrosion performance of parts and subsequent assembly and use effects. Therefore, we proposed an automatic sandblasting device for the special-shaped inner surface of the inner cavity shell of precision hardware parts. Utility Model Content

[0004] The main purpose of the utility model is to provide an automatic sandblasting device for the special-shaped inner surface of the inner cavity shell of a precision hardware component, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] An automatic sandblasting device for the special-shaped inner surface of the inner cavity shell of a precision hardware component comprises a support seat, a positioning mechanism is movably installed on the upper end of the support seat, a vertical plate is fixedly installed on the rear end of the support seat, two No. 1 electric telescopic rods are inlaid and installed in the vertical plate, and a top plate is fixedly installed on the output ends of the two No. 1 electric telescopic rods, and a slide groove is opened on the upper end of the top plate and penetrates upward and downward, and a slider is slidably connected in the slide groove, a sand collecting bucket is fixedly installed on the upper end of the slider, a sand blasting tube is inserted and connected at the lower end of the sand collecting bucket, and the lower end of the sand blasting tube passes through the middle of the slider and extends to the bottom of the slider, and a No. 2 electric telescopic rod is fixedly connected to the rear end of the slider, and the rear end of the No. 2 electric telescopic rod is fixedly connected to the rear inner wall of the slide groove.

[0007] Preferably, the positioning mechanism includes a movable rod and a driving motor, the movable rod is movably mounted on the support seat through a bearing, a transmission gear is fixedly mounted on the lower end of the movable rod, a turntable is fixedly mounted on the upper end of the movable rod, a fixed seat is fixedly mounted on the upper end of the turntable, a positioning device is movably mounted in the fixed seat, the driving motor is fixedly mounted on the upper end of the support seat, a driving gear is fixedly mounted on the output end of the driving motor, and the driving gear and the transmission gear are located in the same plane and mesh with each other.

[0008] Preferably, the positioning device includes a mounting seat and a forward and reverse motor, the lower part of the mounting seat is interlaced with a mounting shaft, the mounting seat is movably mounted in the fixed seat through the mounting shaft, the upper end of the mounting seat is fixedly mounted with a containing plate, and the containing plate is located below the sandblasting tube.

[0009] Preferably, the forward and reverse motor is fixedly mounted on the upper end of the turntable, a driving bevel gear is fixedly mounted on the output end of the forward and reverse motor, a transmission bevel gear is fixedly mounted on one end of the mounting shaft close to the driving bevel gear, and the transmission bevel gear and the driving bevel gear are meshed with each other.

[0010] Preferably, a placement groove is provided at the upper end of the containing plate, and six adjusting screws are interspersed and connected to the outer surface of the containing plate, and the plurality of adjusting screws are distributed in a circular shape and at equal distances around the axis of the containing plate. The adjusting screw is threadedly connected to the containing plate, and a turning handle is fixedly installed at one end of the adjusting screw, and a positioning protrusion is fixedly installed at the other end of the adjusting screw.

[0011] Preferably, the positioning protrusion is made of rubber material and one end away from the adjusting screw rod is an arc surface structure, and a plurality of the positioning protrusions are located in the placement groove.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. The positioning protrusion is pushed to move by adjusting the screw and the threaded connection of the holding plate. The hardware parts are fixedly installed in the placement groove on the holding plate by pressing the outer surface of the hardware parts with multiple positioning protrusions. This can firmly fix the special-shaped precision hardware parts to prevent the special-shaped precision hardware parts from shaking during the sandblasting process. At the same time, the positioning protrusion is made of rubber to prevent the outer surface of the hardware parts from being scratched during the positioning process.

[0014] 2. The turntable rotates by meshing the driving gear with the transmission gear, thereby driving the hardware parts installed in the holding tray to continuously change direction under the sandblasting port at the bottom of the sandblasting tube. At the same time, start the forward and reverse motors, drive the driving bevel gears to rotate through the forward and reverse motors, and rotate the mounting seat by meshing the driving bevel gears with the transmission bevel gears, thereby achieving precise adjustment of the angles of the hardware parts installed in the holding tray, so that the entire inner surface of the hardware parts is sandblasted, the rust removal effect is better, and the rust removal is more thorough. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of an automatic sandblasting device for the special-shaped inner surface of the inner cavity shell of a precision hardware component of the utility model;

[0016] Figure 2 This is a structural schematic diagram of a positioning mechanism of an automatic sandblasting device for the special-shaped inner surface of an inner cavity shell of a precision hardware component of the utility model;

[0017] Figure 3 This is a structural schematic diagram of a positioning device for an automatic sandblasting device for a special-shaped inner surface of an inner cavity shell of a precision hardware component of the utility model;

[0018] Figure 4 The utility model is a structural schematic diagram of a holding plate of an automatic sandblasting device for the special-shaped inner surface of an inner cavity shell of a precision hardware component.

[0019] In the figure: 1. support seat; 2. positioning mechanism; 3. vertical plate; 4. No. 1 electric telescopic rod; 5. top plate; 6. slide groove; 7. slider; 8. sand collecting bucket; 9. sandblasting tube; 10. No. 2 electric telescopic rod; 21. movable rod; 22. transmission gear; 23. turntable; 24. fixed seat; 25. positioning device; 26. drive motor; 27. drive gear; 251. mounting seat; 252. mounting shaft; 253. transmission bevel gear; 254. forward and reverse motor; 255. drive bevel gear; 256. holding plate; 257. placement slot; 258. adjusting screw; 259. turning handle; 260. positioning bump. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] See also Figure 1-4 , the utility model provides a technical solution:

[0024] An automatic sandblasting device for the special-shaped inner surface of the inner cavity shell of a precision hardware component comprises a support seat 1, a positioning mechanism 2 is movably installed on the upper end of the support seat 1, a vertical plate 3 is fixedly installed on the rear end of the support seat 1, two No. 1 electric telescopic rods 4 are inlaid and installed in the vertical plate 3, and a top plate 5 is fixedly installed on the output ends of the two No. 1 electric telescopic rods 4. A slide groove 6 is opened on the upper end of the top plate 5 and penetrates up and down. A slider 7 is slidably connected in the slide groove 6. A sand collecting bucket 8 is fixedly installed on the upper end of the slider 7, and a sandblasting tube 9 is inserted and connected at the lower end of the sand collecting bucket 8, and the lower end of the sandblasting tube 9 passes through the middle of the slider 7 and extends to the bottom of the slider 7, and a No. 2 electric telescopic rod 10 is fixedly connected to the rear end of the slider 7, and the rear end of the No. 2 electric telescopic rod 10 is fixedly connected to the rear inner wall of the slide groove 6.

[0025] In this embodiment, the positioning mechanism 2 includes a movable rod 21 and a driving motor 26. The movable rod 21 is movably installed with the support seat 1 through a bearing. A transmission gear 22 is fixedly installed at the lower end of the movable rod 21, a turntable 23 is fixedly installed at the upper end of the movable rod 21, a fixed seat 24 is fixedly installed at the upper end of the turntable 23, a positioning device 25 is movably installed in the fixed seat 24, a driving motor 26 is fixedly installed at the upper end of the support seat 1, and a driving gear 27 is fixedly installed at the output end of the driving motor 26. The driving gear 27 and the transmission gear 22 are located in the same plane and mesh with each other; the positioning device 25 includes a mounting seat 251 and a forward and reverse motor 254. The lower part of the mounting seat 251 is interspersed with a mounting shaft 252. The mounting seat 251 is movably installed in the fixed seat 24 through the mounting shaft 252. A holding tray 256 is fixedly installed on the upper end of the mounting seat 251, and the holding tray 256 is located on the sandblasting tube 9. ; the forward and reverse motor 254 is fixedly mounted on the upper end of the turntable 23, and the output end of the forward and reverse motor 254 is fixedly mounted with a driving bevel gear 255, and the end of the mounting shaft 252 close to the driving bevel gear 255 is fixedly mounted with a transmission bevel gear 253, and the transmission bevel gear 253 and the driving bevel gear 255 are meshed with each other; the turntable 23 is rotated by the engagement of the driving gear 27 with the transmission gear 22, thereby driving the hardware parts installed in the holding tray 256 to continuously change direction below the sandblasting port at the lower part of the sandblasting tube 9, and at the same time, the forward and reverse motor 254 is started, and the driving bevel gear 255 is driven to rotate by the forward and reverse motor 254, and the mounting seat 251 is rotated by the engagement of the driving bevel gear 255 with the transmission bevel gear 253, thereby realizing the precise adjustment of the angle of the hardware parts installed in the holding tray 256, so that the entire inner surface of the hardware parts is sandblasted, the rust removal effect is better, and the rust removal is more thorough.

[0026] In this embodiment, a placement groove 257 is provided at the upper end of the holding tray 256, and six adjusting screws 258 are inserted and connected to the outer surface of the holding tray 256, and the plurality of adjusting screws 258 are distributed in a ring-shaped manner with equal distances around the axis of the holding tray 256. The adjusting screws 258 are threadedly connected to the holding tray 256, and a rotating handle 259 is fixedly installed at one end of the adjusting screw 258, and a positioning protrusion 260 is fixedly installed at the other end of the adjusting screw 258; the positioning protrusion 260 is made of rubber and is away from one end of the adjusting screw 258. It is a curved structure to prevent the outer surface of the hardware parts from being scratched during the positioning process. Multiple positioning protrusions 260 are all located in the placement groove 257; the positioning protrusions 260 are pushed to move by adjusting the screw 258 and the threaded connection with the receiving tray 256, and the hardware parts are fixedly installed in the placement groove 257 on the receiving tray 256 by pressing the multiple positioning protrusions 260 against the outer surface of the hardware parts, so that the special-shaped precision hardware parts can be firmly fixed to prevent the special-shaped precision hardware parts from shaking during the sandblasting process.

[0027] It should be noted that the utility model is an automatic sandblasting device for the special-shaped inner surface of the inner cavity shell of a precision hardware component. During use, when fixing the special-shaped precision hardware components, the turning handle 259 can be rotated, and the adjusting screw 258 can be driven to rotate by the turning handle 259. The positioning protrusion 260 is pushed to move by the threaded connection between the adjusting screw 258 and the holding tray 256. The hardware components are fixedly installed in the placement groove 257 on the holding tray 256 by pressing the multiple positioning protrusions 260 on the outer surface of the hardware components, so that the special-shaped precision hardware components can be firmly fixed to prevent the special-shaped precision hardware components from shaking during the sandblasting process. Then, the driving motor 26 is started, and the driving gear 27 is driven to rotate by the driving motor 26, and the turntable 23 is rotated by the engagement of the driving gear 27 and the transmission gear 22, thereby driving the hardware parts installed in the holding tray 256 to continuously change direction below the sandblasting port at the lower part of the sandblasting tube 9. At the same time, the forward and reverse motor 254 is started, and the driving bevel gear 255 is driven to rotate by the forward and reverse motor 254, and the mounting seat 251 is rotated by the engagement of the driving bevel gear 255 and the transmission bevel gear 253, thereby realizing the precise adjustment of the angle of the hardware parts installed in the holding tray 256, so that the entire inner surface of the hardware parts is sandblasted, the rust removal effect is better, and the rust removal is more thorough.

[0028] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An automatic sandblasting device for the special-shaped inner surface of the inner cavity shell of a precision hardware component, comprising a support seat (1), characterized in that: A positioning mechanism (2) is movably mounted on the upper end of the support seat (1), a vertical plate (3) is fixedly mounted on the rear end of the support seat (1), two No. 1 electric telescopic rods (4) are embedded and mounted in the vertical plate (3), the output ends of the two No. 1 electric telescopic rods (4) are fixedly mounted with a top plate (5), the upper end of the top plate (5) is provided with a sliding groove (6) passing through the upper and lower ends, a sliding block (7) is slidably connected in the sliding groove (6), a sand collecting bucket (8) is fixedly mounted on the upper end of the sliding block (7), a sand blasting tube (9) is inserted and connected to the lower end of the sand collecting bucket (8), and the lower end of the sand blasting tube (9) passes through the middle of the sliding block (7) and extends to the bottom of the sliding block (7), the rear end of the sliding block (7) is fixedly connected with a No. 2 electric telescopic rod (10), and the rear end of the No. 2 electric telescopic rod (10) is fixedly connected to the rear inner wall of the sliding groove (6); The positioning mechanism (2) comprises a movable rod (21) and a driving motor (26); the movable rod (21) is movably mounted on a support seat (1) via a bearing; a transmission gear (22) is fixedly mounted on the lower end of the movable rod (21); a rotating disk (23) is fixedly mounted on the upper end of the movable rod (21); a fixed seat (24) is fixedly mounted on the upper end of the rotating disk (23); a positioning device (25) is movably mounted in the fixed seat (24); the driving motor (26) is fixedly mounted on the upper end of the support seat (1); a driving gear (27) is fixedly mounted on the output end of the driving motor (26); the driving gear (27) and the transmission gear (22) are located in the same plane and mesh with each other.

2. According to claim 1, an automatic sandblasting device for the special-shaped inner surface of the inner cavity shell of a precision hardware component is characterized by: The positioning device (25) comprises a mounting seat (251) and a forward and reverse motor (254); a mounting shaft (252) is inserted and connected to the lower part of the mounting seat (251); the mounting seat (251) is movably mounted in the fixed seat (24) via the mounting shaft (252); a containing plate (256) is fixedly mounted on the upper end of the mounting seat (251); and the containing plate (256) is located below the sandblasting tube (9).

3. The automatic sandblasting device for the special-shaped inner surface of the inner cavity shell of a precision hardware component according to claim 2 is characterized by: The forward and reverse motor (254) is fixedly mounted on the upper end of the rotating disk (23); a driving bevel gear (255) is fixedly mounted on the output end of the forward and reverse motor (254); a transmission bevel gear (253) is fixedly mounted on one end of the mounting shaft (252) close to the driving bevel gear (255); and the transmission bevel gear (253) and the driving bevel gear (255) are meshed with each other.

4. The automatic sandblasting device for the special-shaped inner surface of the inner cavity shell of a precision hardware component according to claim 2 is characterized by: The upper end of the receiving tray (256) is provided with a placement groove (257), and six adjusting screws (258) are inserted and connected to the outer surface of the receiving tray (256), and the plurality of adjusting screws (258) are distributed in a circular shape and at equal distances around the axis of the receiving tray (256), and the adjusting screws (258) are threadedly connected to the receiving tray (256), and a rotating handle (259) is fixedly installed at one end of the adjusting screw (258), and a positioning protrusion (260) is fixedly installed at the other end of the adjusting screw (258).

5. The automatic sandblasting device for the special-shaped inner surface of the inner cavity shell of a precision hardware component according to claim 4 is characterized in that: The positioning protrusion (260) is made of rubber material and one end away from the adjusting screw (258) is a curved surface structure. A plurality of the positioning protrusions (260) are all located in the placement groove (257).

Images