Polishing device

Abstract

The invention discloses a polishing device which comprises a polishing shell, a driving part and a holding part convenient to grab, a polishing assembly and a polishing rod, the polishing assembly is arranged on the driving part and comprises a polishing disc and a polishing surface arranged on the polishing disc, and the polishing surface is provided with the polishing rod in direct contact with a workpiece. One end of each grinding rod can be away from or close to the grinding face in the radial direction of the grinding disc. The grinding device has the beneficial effects that the grinding assembly is driven to rotate through the control assembly, polishing or grinding of the surface of a workpiece is achieved, the rotating angle of a grinding rod on the grinding face is adjusted through cooperation of an adjusting screw rod, an adjusting sleeve and other structures, and the curved surface rate of the contact face of the grinding assembly and the workpiece is adjusted; the grinding assembly can adjust the contact surface according to the position, needing to be ground, of the workpiece, so that the contact area between the grinding assembly and the workpiece is increased, the grinding assembly can meet diversified grinding requirements, and higher precision and uniformity are provided for grinding the surface of the irregular workpiece.

Description

Technical Field

[0001] The present invention relates to the field of grinding equipment, in particular to a grinding device. Background Art

[0002] A grinding device is a device used to grind and polish the surface of a workpiece. During normal machining, burrs and flash often remain on the surface of the workpiece, which makes the workpiece less beautiful. In addition, workers are easily injured by these remaining burrs or flash when using the workpiece. The use of a grinding device can effectively remove these excess parts and make the workpiece surface smoother and neater.

[0003] However, the grinding surface of existing grinding devices is generally flat, which means that conventional grinding devices can only grind regular workpieces. When grinding irregular workpieces, the contact area between the grinding head of the grinding device and the irregular workpiece is often small, resulting in low grinding efficiency and difficulty in ensuring grinding uniformity. In view of this, we propose a grinding device. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is that when the existing grinding device is grinding an irregular workpiece, the grinding efficiency is easily reduced due to the small contact area.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a grinding device, which includes a grinding shell, including a driving part and a gripping part for easy grasping, a grinding assembly, which is arranged on the driving part, including a grinding disc and a grinding surface arranged on the grinding disc, a grinding rod that is in direct contact with the workpiece is provided on the grinding surface, and one end of the grinding rod can move away from or approach the grinding surface along the radial direction of the grinding disc.

[0006] As a preferred solution of the grinding device of the present invention, an adjusting disc is provided between the grinding surface and the grinding rod, and a traction rope is provided between the adjusting disc and the grinding rod.

[0007] As a preferred solution of the grinding device of the present invention, the grinding disc is provided with an adjusting screw that slides through the grinding surface, and the adjusting screw is rotatably connected to the adjusting disc at one end away from the driving part, and an adjusting sleeve is provided on the side of the grinding disc away from the grinding surface, and the adjusting sleeve is threadedly sleeved on the outside of the adjusting screw, and a clamping part is provided at the connection between the adjusting sleeve and the grinding disc, and the clamping part includes a rotating groove opened on the grinding disc, and a rotating ring block coaxially fixed with the adjusting sleeve is rotatably installed in the rotating groove, and a first clamping groove and a second clamping groove corresponding to each other are respectively provided on the outer wall of the rotating ring block and the inner wall of the rotating groove, and a clamping rod is slidably installed in the first clamping groove, and one end of the clamping rod slides and extends outside the first clamping groove, and the other end is provided with a clamping spring fixed to the first clamping groove.

[0008] As a preferred solution of the grinding device of the present invention, the grinding shell and the driving part are respectively provided with an accommodating chamber and a driving chamber that are interconnected, and the driving chamber and the accommodating chamber are respectively provided with a fixing component for fixing the grinding component and a control component for controlling the operation of the grinding component.

[0009] As a preferred solution of the grinding device of the present invention, the fixing assembly includes a fixing rod rotatably installed in the driving chamber, and the end of the fixing rod away from the driving chamber passes through the bottom wall of the driving chamber, and three clamping rods are installed, and a first clamping interval for fixing the adjusting sleeve and a second clamping interval for fixing the adjusting rod screw are constructed between the three clamping rods.

[0010] As a preferred solution of the grinding device of the present invention, a thread is provided on the outside of the fixing rod and located between the driving part and the clamping rod, a protective cover is provided on the threaded sleeve outside the fixing rod, and a resistance cavity for resisting the clamping rod is provided at the threaded connection between the protective cover and the fixing rod.

[0011] As a preferred solution of the grinding device of the present invention, the control component includes a driving motor arranged in the accommodating cavity, and a driving rod is coaxially fixed to the output end of the driving motor.

[0012] As a preferred solution of the grinding device of the present invention, the driving rod extends into the driving cavity from one end of the accommodating cavity and is installed with a first bevel gear, and the outside of the first bevel gear is engaged with a second bevel gear coaxially fixed with the driving rod.

[0013] As a preferred solution of the polishing device of the present invention, a blowing assembly for heat dissipation and soot blowing is provided in the polishing shell, and the blowing assembly includes blowing blades fixedly mounted on the outside of the driving rod.

[0014] As a preferred solution of the polishing device of the present invention, the polishing shell is provided with an air outlet and an air inlet connected to the driving chamber and the accommodating chamber respectively, and dust filters are provided at the connection between the air outlet and the air inlet and the outside world.

[0015] The beneficial effects of the grinding device of the present invention are as follows: the grinding assembly is driven to rotate by the control assembly to achieve polishing or grinding of the workpiece surface, and the rotation angle of the grinding rod on the grinding surface is adjusted by the cooperation of the adjustment screw and the adjustment sleeve and other structures, and the curvature of the contact surface between the grinding assembly and the workpiece is adjusted, so that the grinding assembly can adjust the contact surface according to the position of the workpiece to be polished, thereby increasing the contact area between the grinding assembly and the workpiece and improving the grinding quality. This enables the grinding assembly to meet diverse grinding needs, improve the workpiece grinding quality and grinding efficiency, and provide higher precision and uniformity for the surface grinding of irregular workpieces. In addition, the setting of the purge assembly can use airflow to purge the grinding position and blow away dust generated by grinding, making it easier for workers to observe the grinding status of the workpiece. At the same time, it accelerates the air flow around the grinding position, achieving the effect of rapid heat dissipation, and avoiding damage to the grinding rod due to high operating temperature. The dust filter is set to intercept some particles when they approach the air outlet or air inlet under the action of the airflow, preventing them from entering the inside of the grinding shell and affecting the operation of the internal components of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings of the embodiments of the present invention. Obviously, the drawings described below only relate to some embodiments of the present invention and are not intended to limit the present invention. Among them:

[0017] Figure 1 Shows a schematic diagram of the three-dimensional structure of the invention;

[0018] Figure 2 Shows a schematic diagram of the front cross-sectional structure of the invention;

[0019] Figure 3 Shown Figure 2 Schematic diagram of the enlarged structure of area A in the middle;

[0020] Figure 4 Shows a schematic diagram of the split structure of the grinding assembly in the invention;

[0021] Figure 5 Shows a schematic structural diagram of the fixing assembly in the invention;

[0022] Figure 6 Shows a schematic cross-sectional view of the grinding disc in the invention;

[0023] Figure 7 Shown Figure 6 Schematic diagram of the enlarged structure of area B in the middle. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below with reference to specific embodiments and the accompanying drawings.

[0025] The terms used in the present invention are those commonly used in the art in view of the functions of the present invention, but these terms may vary according to the intentions of those skilled in the art, precedents, or new technologies in the art. In addition, specific terms may be selected by the applicant, and in such cases, their detailed meanings will be described in the detailed description of the present invention. Therefore, the terms used in the specification should not be understood as simple names, but rather as the meanings of the terms and the overall description of the present invention.

[0026] This embodiment provides a grinding device, such as Figure 1 As shown, the grinding shell 1 is provided with a driving part 11 and a holding part 12, and the driving part 11 is provided with a grinding component 2 for grinding the workpiece. Figure 2 As shown, a driving chamber 14 and an accommodating chamber 13 are provided inside the grinding housing 1 , which are connected to each other. A control component 4 for driving the grinding component 2 to operate is provided in the accommodating chamber 13 .

[0027] When in use, the staff only needs to grab the gripping part 12 on the grinding shell 1 to move the entire device. During the grinding process, the grinding component 2 can be first brought close to the workpiece, and then the control component 4 can be started through the button on the gripping part 12. The control component 4 is used to drive the grinding component 2 to rotate to achieve polishing or grinding of the workpiece surface.

[0028] like Figure 4 As shown, a grinding surface 22 is provided on one side of the grinding disc 21 for grinding. The grinding surface 22 is conical, and the internal dimensions decrease in the direction away from the grinding rod 23. At the same time, a mounting protrusion rotatably connected to the grinding rod 23 is fixedly installed on the largest end of the grinding surface 22, so that the grinding rod 23 can rotate on the grinding surface 22 to achieve the effect of moving away from or approaching the grinding surface 22.

[0029] Because the grinding rod 23 is in direct contact with the workpiece, the rotation setting of the grinding rod 23 can adjust the curvature of the contact surface between the grinding component 2 and the workpiece, so that the grinding component 2 can adjust the contact surface according to the position of the workpiece to be ground, thereby increasing the contact area between the grinding component 2 and the workpiece and improving the grinding quality. This enables the grinding component 2 to meet diverse grinding needs, improve the workpiece grinding quality and grinding efficiency, and provide higher precision and uniformity for the surface grinding of irregular workpieces.

[0030] like Figure 4As shown, an adjusting screw 26 is slidably passed through the center position of the grinding disc 21, and an adjusting disc 24 is rotatably installed on the end of the adjusting screw 26 close to the grinding surface 22. A traction rope 25 is provided on the side of the adjusting disc 24 facing the grinding surface 22, and the two ends are respectively fixed to the adjusting disc 24 and the grinding rod 23. An adjusting sleeve 27 is provided on the side of the adjusting disc 24 away from the grinding surface 22 and is threadedly connected to the adjusting screw 26.

[0031] The adjusting screw 26 is fixed on the grinding disc 21 and the adjusting sleeve 27 is connected to the adjusting sleeve 27 so as to prevent the adjusting sleeve 27 from rotating. First, the traction rope 25 is driven to move by the adjusting disc 24 connected to its own rotation. When the traction rope 25 is straightened, it will drive the grinding rod 23 fixed to the traction rope 25 to move. The grinding rod 23 is rotatably connected to the maximum end of the grinding surface 22 through the mounting protrusion. Therefore, when the force is transmitted to the grinding rod 23 through the traction rope 25, the grinding rod 23 will be driven to rotate, so that the grinding assembly 2 can adjust the fit between the grinding rod 23 and the workpiece according to the shape of the grinding position of the workpiece, thereby expanding the contact area between the grinding assembly 2 and the workpiece and improving the grinding quality. In addition, the self-locking performance of the thread between the adjusting sleeve 27 and the adjusting screw 26 can effectively improve the stability of the adjustment of the grinding rod 23, making it less likely to deviate under the action of external force.

[0032] like Figure 6 and Figure 7As shown, a locking part 28 is provided at the connection between the adjusting sleeve 27 and the grinding disc 21. The locking part 28 includes a rotating groove 281 opened on the grinding disc 21, and a rotating ring block 282 coaxially fixed with the adjusting sleeve 27 is rotatably installed in the rotating groove 281. The outer wall of the rotating ring block 282 and the inner wall of the rotating groove 281 are respectively provided with a first locking groove 283 and a second locking groove 284 corresponding to each other, and a locking rod 285 is slidably installed in the first locking groove 283. One end of the locking rod 285 slides and extends to the outside of the first locking groove 283, and the other end is provided with a locking spring 286 fixed to the first locking groove 283. When the adjusting sleeve 27 rotates, it will drive the rotating ring block 282 fixed coaxially therewith to move. The rotating ring block 282 moves in the rotating groove 281, causing the engaging rod 285 slidably connected thereto to slide out of the first engaging groove 283 and move along the inner wall of the rotating groove 281. When the engaging rod 285 contacts the second engaging groove 284, it will slide deeper into the second engaging groove 284 under the action of inertia, realizing the transmission connection between the rotating ring block 282 and the rotating groove 281, so that the adjusting sleeve 27 will synchronously drive the grinding disc 21 to rotate during the rotation process, further improving the grinding efficiency. When the adjusting sleeve 27 stops rotating, the engaging spring in the first engaging groove 283 will pull the engaging rod 285 back into the first engaging groove 283.

[0033] like Figure 2 and Figure 5 As shown, a fixing rod 31 is rotatably installed in the driving chamber 14, and three clamping rods 32 are fixedly installed at one end of the fixing rod 31 that passes through the driving chamber 14. The clamping rods 32 are made of elastic material and are tilted. This makes the internal dimensions of the first clamping section 33 and the second clamping section 34 constructed between the three clamping rods 32 decrease in sequence as they approach the fixing rod 31.

[0034] Therefore, when installing the grinding assembly 2 to the driving part 11, the adjusting screw 26 and the adjusting sleeve 27 can be placed in the second clamping section 34 and the first clamping section 33 first, and then the clamping rod 32 can be squeezed inward, thereby reducing the internal volume of the first clamping section 33 and the second clamping section 34, so that the inner walls of the first clamping section 33 and the second clamping section 34 are tightly fitted with the outer walls of the adjusting screw 26 and the adjusting sleeve 27, thereby achieving the fixation of the grinding assembly 2.

[0035] like Figure 5 As shown, a protective cover 35 is threadedly installed on the outside of the fixing rod 31 and located between the driving part 11 and the clamping rod 32, and a conflict cavity 36 for conflicting with the clamping rod 32 is provided at the threaded connection between the protective cover 35 and the fixing rod 31. Figure 3As shown, the internal dimensions of the interference cavity 36 decrease in the direction away from the fixed rod 31. Therefore, when the protective cover 35 is rotated away from the fixed rod 31, the inner wall of the interference cavity 36 set on the protective cover 35 will contact the outer wall of the clamping rod 32 and squeeze the clamping rod 32 to shrink inward, thereby fixing the grinding assembly 2.

[0036] like Figure 2 As shown, the protective cover 35 covering the outside of the grinding assembly 2 provides protection for the operator. During operation, the grinding rod 23 rotates at high speed, generating a large amount of debris and dust. Furthermore, the grinding rod 23 itself may break and fly in an accident. The protective cover 35 effectively blocks this debris and dust, preventing it from splashing onto the operator, thereby protecting the operator's safety.

[0037] like Figure 2 As shown, a drive motor 41 is provided in the accommodating cavity 13, and a drive rod 42 is provided at the output end of the drive motor 41. The drive rod 42 slides away from one end of the drive motor 41 and extends into the drive cavity 14, and is installed with a first bevel gear 43. The outside of the first bevel gear 43 is engaged with a second bevel gear 44 coaxially fixed with the fixing rod 31.

[0038] Therefore, when the drive motor 41 is started, the drive motor 41 will drive the drive rod 42 to rotate, and the first bevel gear 43 will be driven to rotate through the drive rod 42, and then the second bevel gear 44 will be driven to rotate by the engagement of the teeth between the first bevel gear 43 and the second bevel gear 44. Because the second bevel gear is coaxially fixed to the fixed rod 31, when the second bevel gear 44 rotates, it will drive the grinding assembly 2 to operate through a series of mechanical transmissions to realize the grinding function.

[0039] In addition, because the protective cover 35 is threadedly connected to the fixed rod 31, when the fixed rod 31 rotates, the protective cover 35 also rotates with the fixed rod 31, thereby achieving full coverage of the grinding assembly 2, which can better wrap the grinding assembly 2 and reduce the splashing of dust and debris. This helps to improve the working environment and reduce the risk of dust inhalation by operators. Figure 5 The protective cover 35 shown can rotate with the fixing rod 31, so it is set to be semicircular. This setting can reduce the weight of the protective cover 35, reduce the production cost of the fixing component 3, and is conducive to the promotion of the equipment.

[0040] Because a lot of dust is generated during the grinding process, this dust floating around the driving part 11 will interfere with the staff's vision, and the high-speed contact between the grinding rod 23 and the workpiece will generate a lot of heat. If it is not dissipated in time, it will affect the service life of the grinding rod 23.

[0041] Therefore, if Figure 2As shown, the present invention is provided with a blowing component 5 in the grinding housing 1 for blowing away grinding dust and accelerating the heat dissipation of the grinding rod 23, as shown in FIG. Figure 2 As shown, a purge blade 51 is coaxially fixed to the outside of the driving rod 42, and an air outlet 52 and an air inlet 53 are respectively provided in the driving chamber 14 and the accommodating chamber 13. During the grinding process, the start of the driving rod 42 will also synchronously drive the purge blade 51 to rotate, and the air flow in the accommodating chamber 13 and the driving chamber 14 will be discharged from the air outlet 52, and the grinding position will be purged, thereby achieving the effect of blowing away dust, making it convenient for the staff to observe the grinding condition of the workpiece, which is conducive to improving the grinding quality. At the same time, the air flow at the grinding position will accelerate the air flow around the grinding position, achieving the effect of rapid heat dissipation, and avoiding damage to the grinding rod 23 due to high operating temperature. After the purge blade 51 guides the air flow in the accommodating chamber 13 and the driving chamber 14, the air pressure in the driving chamber 14 and the accommodating chamber 13 will be lower than the external atmospheric pressure. Under the action of the air pressure difference, the outside air will enter the grinding shell 1 along the air inlet 53 to replenish the gas in the driving chamber 14 and the accommodating chamber 13.

[0042] like Figure 2 As shown, dust filters 54 are provided at the places where the air inlet duct 53 and the air outlet duct 52 are connected to the outside world. Under the action of the airflow, some particles will approach the air outlet duct 52 or the air inlet duct 53. If they enter the interior of the polishing shell 1, it will affect the operation of the equipment. Therefore, when they approach the air outlet duct 52 or the air inlet duct 53 with the air flow, the dust filters 54 provided in the air outlet duct 52 or the air inlet duct 53 will hinder their linear motion and intercept these particles.

[0043] Finally, it should be pointed out that the methods and devices described in detail above are merely embodiments, and those skilled in the art can modify these embodiments in different ways without departing from the scope of the present invention.

Claims

1. A grinding device, characterized in that: include, A polishing shell (1) comprises a driving portion (11) and a gripping portion (12) for easy grasping; The grinding assembly (2) is arranged on the driving part (11), and comprises a grinding disc (21) and a grinding surface (22) arranged on the grinding disc (21); a grinding rod (23) is provided on the grinding surface (22) for direct contact with the workpiece, and one end of the grinding rod (23) can move away from or approach the grinding surface (22) along the radial direction of the grinding disc (21).

2. The grinding device according to claim 1, characterized in that: An adjusting disc (24) is provided between the polishing surface (22) and the polishing rod (23), and a traction rope (25) is provided between the adjusting disc (24) and the polishing rod (23).

3. The grinding device according to claim 2, characterized in that: The grinding disc (21) is provided with an adjusting screw (26) which slides through the grinding surface (22); the end of the adjusting screw (26) away from the driving part (11) is rotatably connected to the adjusting disc (24); the side of the grinding disc (21) away from the grinding surface (22) is provided with an adjusting sleeve (27), and the adjusting sleeve (27) is threadedly sleeved on the outside of the adjusting screw (26); the connection between the adjusting sleeve (27) and the grinding disc (21) is provided with a clamping member (28), and the clamping member (28) includes a rotating member provided on the grinding disc (21). A rotating ring block (282) coaxially fixed with the adjusting sleeve (27) is rotatably installed in the rotating groove (281), and a first engaging groove (283) and a second engaging groove (284) corresponding to each other are respectively provided on the outer wall of the rotating ring block (282) and the inner wall of the rotating groove (281). A engaging rod (285) is slidably installed in the first engaging groove (283), and one end of the engaging rod (285) slides and extends outside the first engaging groove (283), and the other end is provided with an engaging spring (286) fixed to the first engaging groove (283).

4. The grinding device according to claim 3, characterized in that: The polishing housing (1) and the driving portion (11) are respectively provided with a mutually communicating accommodation chamber (13) and a driving chamber (14), and the driving chamber (14) and the accommodation chamber (13) are respectively provided with a fixing assembly (3) for fixing the polishing assembly (2) and a control assembly (4) for controlling the operation of the polishing assembly (2).

5. The grinding device according to claim 4, characterized in that: The fixing assembly (3) includes a fixing rod (31) rotatably mounted in the driving chamber (14), wherein one end of the fixing rod (31) away from the driving chamber (14) passes through the bottom wall of the driving chamber (14) and is provided with three clamping rods (32). A first clamping section (33) for fixing the adjusting sleeve (27) and a second clamping section (34) for fixing the adjusting rod screw are constructed between the three clamping rods (32).

6. The grinding device according to claim 5, characterized in that: A thread is provided on the outside of the fixing rod (31) and between the driving portion (11) and the clamping rod (32). A protective cover (35) is provided on the threaded sleeve of the fixing rod (31). A conflict cavity (36) for conflicting with the clamping rod (32) is provided at the threaded connection between the protective cover (35) and the fixing rod (31).

7. The grinding device according to claim 6, characterized in that: The control assembly (4) comprises a drive motor (41) disposed in the accommodating chamber (13), and a drive rod (42) is coaxially fixed to the output end of the drive motor (41).

8. The grinding device according to claim 7, characterized in that: One end of the driving rod (42) away from the accommodating chamber (13) extends into the driving chamber (14) and is provided with a first bevel gear (43). The first bevel gear (43) is externally engaged with a second bevel gear (44) coaxially fixed to the driving rod (42).

9. The grinding device according to claim 7, characterized in that: A blowing assembly (5) for dissipating heat and blowing away soot is provided in the polishing housing (1), and the blowing assembly (5) comprises blowing blades (51) fixedly mounted on the outside of the driving rod (42).

10. The grinding device according to claim 9, characterized in that: The polishing housing (1) is provided with an air outlet duct (52) and an air inlet duct (53) which are in communication with the driving chamber (14) and the accommodating chamber (13), respectively, and dustproof filters (54) are provided at the connection points between the air outlet duct (52) and the air inlet duct (53) and the outside world.

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