A polishing device for mechanical part machining with a polishing head convenient to dismount and replace
By introducing a fixing mechanism, a drive motor, and a ratchet assembly into the polishing device, convenient replacement and stable positioning of the polishing head are achieved, solving the problem of low replacement efficiency in existing devices and improving the efficiency and stability of the equipment.
Patent Information
- Application Number
- CN202521410854.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-07
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-07-07
AI Technical Summary
Existing polishing equipment for machining mechanical parts has difficulty in quickly changing polishing heads, resulting in reduced efficiency when processing different parts.
A polishing device for machining mechanical parts with an easy-to-disassemble and replace polishing head was designed. By setting up a fixing mechanism, a drive motor, a transmission mechanism and a moving mechanism, combined with a ratchet group and an electric push rod, the polishing head can be easily replaced and stably positioned.
It improves the replacement efficiency and operability of the polishing device, increases the stability and controllability of the equipment during operation, and ensures the smooth progress of the polishing process.
Smart Images

Figure CN224674587U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of polishing equipment technology, specifically to a polishing device for processing mechanical parts that facilitates the disassembly and replacement of polishing heads. Background Technology
[0002] Polishing equipment is used for mechanical grinding, polishing, and waxing. It removes paint contaminants, oxide layers, and shallow scratches through the combined action of a polishing disc and polishing compound. The working principle of a polishing machine is that an electric motor drives a sponge or wool polishing disc mounted on the machine to rotate at high speed. The combined action of the polishing disc and polishing compound, along with friction against the surface to be polished, achieves the purpose of removing paint contaminants, oxide layers, and shallow scratches. In the processing of mechanical parts, polishing equipment is often used for grinding. However, existing polishing devices for mechanical parts processing have some shortcomings, such as: Application No.: CN202122280534.2 discloses a high-efficiency polishing device for machining mechanical parts. This device has advantages such as good dust removal effect, good use effect, simple structure, and high polishing efficiency. It has high practical value and promotion value in the field of parts machining technology. However, in actual use, it is difficult to replace the polishing head, which may lead to a slow replacement of the polishing mechanism when machining different mechanical parts, thereby reducing the efficiency of the equipment. Therefore, we propose a polishing device for machining mechanical parts that facilitates the disassembly and replacement of the polishing head, in order to solve the problems mentioned above. Utility Model Content
[0003] The purpose of this utility model is to provide a polishing device for machining mechanical parts that facilitates the disassembly and replacement of the polishing head, in order to solve the problem mentioned in the background art that most high-efficiency polishing devices for machining mechanical parts on the market are difficult to replace the polishing head, which may lead to a slow replacement of the polishing mechanism when the equipment is processing different mechanical parts, thereby reducing the efficiency of the equipment.
[0004] To achieve the above objectives, the present invention provides the following technical solution: a polishing device for machining mechanical parts with an easy-to-disassemble and replace polishing head, comprising a device body, a base plate disposed at the front end of the device body, a fixed frame disposed at the top of the base plate, a transmission mechanism disposed at the top of the base plate, and a moving mechanism connected to the top of the fixed frame; The main body of the device is equipped with a drive motor, and the front end of the drive motor is connected to the transmission mechanism and the moving mechanism. The bottom of the moving mechanism is equipped with a fixing mechanism, and the bottom of the fixing mechanism is connected to the polishing head body, which is located inside the fixing frame.
[0005] By setting the fixing mechanism at the bottom of the moving mechanism, the polishing head body can be replaced by directly disassembling the fixing mechanism when disassembling the polishing head body. This makes it more convenient to replace the polishing mechanism. Furthermore, the connection between the drive motor and the transmission and moving mechanisms makes it easier to operate the transmission and moving mechanisms, thus increasing the operability of the equipment.
[0006] As a preferred embodiment of this utility model, a first sprocket is connected to the front end of the drive motor, and a chain is engaged on the outer side of the first sprocket, and a second sprocket is engaged on the top left end of the chain.
[0007] The above technical solution enables the drive motor to be more stable when connected to the transmission mechanism or the moving mechanism, thereby increasing the stability of the equipment during operation.
[0008] As a preferred embodiment of the present invention, the front ends of the first sprocket and the second sprocket are provided with ratchet groups, and the ratchet groups include a first ratchet, and the front end of the first ratchet is engaged with a second ratchet, the front end of the second ratchet is connected to a spring shaft, and the ratchet groups at the front ends of the first sprocket and the second sprocket face opposite directions.
[0009] The above technical solution makes it more convenient for the drive motor to control the transmission mechanism and the moving mechanism, thereby increasing the operability of the equipment during use.
[0010] As a preferred technical solution of this utility model, the first sprocket is connected to the transmission mechanism through a ratchet assembly, and the transmission mechanism includes a first drive shaft, a transmission belt is provided on the outside of the first drive shaft, and a second drive shaft is engaged at the left end of the transmission belt. The first drive shaft and the second drive shaft are composed of a sprocket and a shaft body and engage with the transmission belt.
[0011] The above technical solution enables the conveyor belt to move workpieces more stably, thereby increasing the stability of the equipment during operation.
[0012] As a preferred technical solution of this utility model, the first drive shaft and the second drive shaft are rotatably connected to the inside of the base plate, and the second sprocket is connected to the moving mechanism through a ratchet assembly. The moving mechanism includes a reciprocating threaded rod, the reciprocating threaded rod is provided with a threaded sleeve on the outside, and a sliding rod is slidably connected inside the threaded sleeve. The bottom of the threaded sleeve is connected to the fixing mechanism.
[0013] The above technical solution enables the drive motor to rotate more stably when it drives the sliding rod to rotate in the reverse direction, thereby increasing the stability of the device during operation.
[0014] As a preferred technical solution of this utility model, the bottom of the threaded sleeve is provided with a hydraulic rod, and the threaded sleeve is connected to the fixing mechanism through the hydraulic rod. The fixing mechanism includes a fixing groove, a connecting shaft is provided inside the fixing groove, a fixing plate is hinged to the front section of the fixing groove, a servo motor is connected to the rear end of the connecting shaft, and a polishing head body is connected to the outside of the connecting shaft.
[0015] The above technical solution enables the fixing mechanism to be connected to the polishing head body via a connecting shaft, making it more convenient to disassemble the polishing head body and increasing the device's detachability.
[0016] As a preferred technical solution of this utility model, the front end of the connecting shaft is snapped to the fixing plate, and an electric push rod is provided inside the base plate, and a push plate is connected to the inner side of the electric push rod.
[0017] The above technical solution enables the device to position the workpiece at the top of the transmission mechanism by activating the push plate via an electric push rod, thereby increasing the stability of the device during operation.
[0018] Compared with the prior art, the beneficial effects of this utility model are: by setting the fixing mechanism at the bottom of the moving mechanism, the polishing head body can be replaced by directly disassembling the fixing mechanism when disassembling the polishing head body, which makes it more convenient to replace the polishing mechanism. Furthermore, by connecting the drive motor to the transmission mechanism and the moving mechanism, it is more convenient to operate the transmission mechanism or the moving mechanism, thus increasing the operability of the device. Furthermore, the ratchet assembly makes it easier for the drive motor to control the transmission and movement mechanisms, thereby increasing the operability of the device during use. Furthermore, by incorporating an electric push rod and a push plate, the device can position the workpiece at the top of the transmission mechanism by activating the push plate via the electric push rod, thereby increasing the stability of the device during operation. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the elevation structure of this utility model; Figure 2 This is a three-dimensional structural schematic diagram of the rear cross-section of this utility model; Figure 3 This is a three-dimensional structural schematic diagram of the side cross-section of this utility model; Figure 4 This is a three-dimensional structural diagram of the drive motor of this utility model; Figure 5This is a three-dimensional structural diagram of the transmission mechanism of this utility model; Figure 6 This is a three-dimensional structural diagram of the moving mechanism of this utility model; Figure 7 This is a three-dimensional structural diagram of the fixing mechanism of this utility model.
[0020] In the diagram: 1. Main body of the device; 2. Base plate; 3. Fixing frame; 4. Drive motor; 5. First sprocket; 6. Chain; 7. Second sprocket; 8. First ratchet; 9. Second ratchet; 10. Spring shaft; 11. First drive shaft; 12. Conveyor belt; 13. Second drive shaft; 14. Electric push rod; 15. Push plate; 16. Reciprocating threaded rod; 17. Threaded sleeve; 18. Sliding rod; 19. Hydraulic rod; 20. Fixing groove; 21. Fixing plate; 22. Servo motor; 23. Connecting shaft; 24. Polishing head body. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0022] Example 1: To solve the problem of difficulty in replacing the polishing head body 24 in the prior art, the following solution is disclosed. Please refer to [link / reference]. Figures 1-7 This utility model provides a technical solution: a polishing device for processing mechanical parts with an easy-to-disassemble and replace polishing head, including a device body 1, a base plate 2 disposed at the front end of the device body 1, a fixed frame 3 disposed on the top of the base plate 2, a transmission mechanism disposed on the top of the base plate 2, and a moving mechanism connected to the top of the fixed frame 3. The main body 1 of the device is equipped with a drive motor 4, and the front end of the drive motor 4 is connected to the transmission mechanism and the moving mechanism. The bottom of the moving mechanism is equipped with a fixing mechanism, and the bottom of the fixing mechanism is connected to the polishing head body 24. The polishing head body 24 is located inside the fixing frame 3. The front end of the drive motor 4 is connected to a first sprocket 5, and a chain 6 is engaged on the outer side of the first sprocket 5. A second sprocket 7 is engaged at the top left end of the chain 6. The front ends of the first sprocket 5 and the second sprocket 7 are provided with ratchet groups, and the ratchet groups include a first ratchet 8. The front end of the first ratchet 8 is engaged with a second ratchet 9. The front end of the second ratchet 9 is connected to a spring shaft 10, and the ratchet groups at the front ends of the first sprocket 5 and the second sprocket 7 face opposite directions. The first sprocket 5 is connected to the transmission mechanism via a ratchet assembly, and the transmission mechanism includes a first drive shaft 11. A transmission belt 12 is provided on the outside of the first drive shaft 11, and a second drive shaft 13 is engaged at the left end of the transmission belt 12. The first drive shaft 11 and the second drive shaft 13 are composed of sprockets and shafts and engage with the transmission belt 12. The first drive shaft 11 and the second drive shaft 13 are rotatably connected to the inside of the base plate 2, and the second sprocket 7 is connected to the moving mechanism through a ratchet assembly. The moving mechanism includes a reciprocating threaded rod 16, a threaded sleeve 17 is provided on the outside of the reciprocating threaded rod 16, and a sliding rod 18 is slidably connected inside the threaded sleeve 17. The bottom of the threaded sleeve 17 is connected to the fixing mechanism. The threaded sleeve 17 is provided with a hydraulic rod 19 at its bottom, and the threaded sleeve 17 is connected to the fixing mechanism through the hydraulic rod 19. The fixing mechanism includes a fixing groove 20, and a connecting shaft 23 is provided inside the fixing groove 20. A fixing plate 21 is hinged to the front end of the fixing groove 20, and a servo motor 22 is connected to the rear end of the connecting shaft 23. A polishing head body 24 is connected to the outside of the connecting shaft 23. The front end of the connecting shaft 23 is snapped to the fixing plate 21, and an electric push rod 14 is provided inside the base plate 2. A push plate 15 is connected to the inner side of the electric push rod 14.
[0023] Example 2 differs from Example 1 in that: the circuit is directly installed inside the fixed slot 20 to connect with the servo motor 22 on the outside, and when the top of the fixed slot 20 is connected to the threaded sleeve 17, the excess wire is fixed by a wire take-up device to prevent the circuit from falling off when the moving mechanism moves the fixed slot 20. This makes the device more stable during operation and avoids circuit damage.
[0024] Working principle: When using a polishing device for machining mechanical parts that allows for easy disassembly and replacement of the polishing head, first connect the equipment to the power grid for power supply. Then, the fixing mechanism fixes the polishing head body 24, thereby causing the drive motor 4 to rotate in the forward direction and the transmission mechanism to run. When the transmission mechanism moves the workpiece to the bottom of the fixing frame 3, the drive motor 4 rotates in the reverse direction, thereby causing the moving mechanism to move the fixing mechanism, so that the fixing mechanism and the polishing head body 24 are moved to the appropriate position to polish the workpiece. When the drive motor 4 rotates in the forward direction, the ratchet group at the front end of the first sprocket 5 will engage, that is, the first ratchet 8 and the second ratchet 9 will engage. The second ratchet 9 will drive the transmission mechanism through the spring shaft 10. Since the ratchet groups at the front ends of the first sprocket 5 and the second sprocket 7 are facing opposite directions, the ratchet group at the front end of the second sprocket 7 will disengage, that is, the first ratchet 8 and the second ratchet 9 will disengage. The second ratchet 9 will then retract under the drive of the spring shaft 10. When the drive motor 4 rotates in the forward direction, the first sprocket 5 will drive the first drive shaft 11 to rotate, thereby causing the first drive shaft 11 to drive the transmission belt 12 and the second drive shaft 13 to rotate, thereby causing the workpiece at the top of the transmission belt 12 to move. When the drive motor 4 rotates in the reverse direction, it will drive the second sprocket 7 to rotate, thereby causing the second sprocket 7 to drive the reciprocating threaded rod 16 to rotate, thereby causing the reciprocating threaded rod 16 to drive the threaded sleeve 17 and the polishing head body 24 to move. When fixing the polishing head body 24, the fixing mechanism can first open the fixing plate 21 to fix the polishing head body 24 in the connecting shaft 23. Then, the fixing plate 21 and the connecting shaft 23 are engaged and connected so that when the servo motor 22 drives the polishing head body 24, the fixing groove 20 and the fixing plate 21 limit the polishing head body 24.
[0025] This completes a series of tasks. The contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A polishing device for machining mechanical parts with an easily removable and replaceable polishing head, comprising a device body (1) and a base plate (2) disposed at the front end of the device body (1), characterized in that, The base plate (2) is provided with a fixed frame (3) on top, and a transmission mechanism is provided on the top of the base plate (2), and a moving mechanism is connected to the top of the fixed frame (3); The device body (1) is equipped with a drive motor (4), and the front end of the drive motor (4) is connected to the transmission mechanism and the moving mechanism. The bottom of the moving mechanism is equipped with a fixing mechanism, and the bottom of the fixing mechanism is connected to the polishing head body (24). The polishing head body (24) is located inside the fixing frame (3). The front end of the drive motor (4) is connected to a first sprocket (5), and a chain (6) is engaged on the outer side of the first sprocket (5), and a second sprocket (7) is engaged on the top left end of the chain (6). The first sprocket (5) and the second sprocket (7) are provided with ratchet groups at their front ends, and the ratchet groups include a first ratchet (8), and the front end of the first ratchet (8) is engaged with a second ratchet (9), and the front end of the second ratchet (9) is connected to a spring shaft (10), and the ratchet groups at the front end of the first sprocket (5) and the ratchet groups at the front end of the second sprocket (7) face opposite directions; The first sprocket (5) is connected to the transmission mechanism via a ratchet assembly, and the transmission mechanism includes a first drive shaft (11), a transmission belt (12) is provided on the outside of the first drive shaft (11), and a second drive shaft (13) is engaged at the left end of the transmission belt (12). The first drive shaft (11) and the second drive shaft (13) are composed of sprockets and shafts and engage with the transmission belt (12). The first drive shaft (11) and the second drive shaft (13) are rotatably connected to the base plate (2), and the second sprocket (7) is connected to the moving mechanism through a ratchet assembly. The moving mechanism includes a reciprocating threaded rod (16), a threaded sleeve (17) is provided on the outside of the reciprocating threaded rod (16), and a sliding rod (18) is slidably connected inside the threaded sleeve (17). The bottom of the threaded sleeve (17) is connected to the fixing mechanism. The threaded sleeve (17) is provided with a hydraulic rod (19) at the bottom, and the threaded sleeve (17) is connected to the fixing mechanism through the hydraulic rod (19). The fixing mechanism includes a fixing groove (20), a connecting shaft (23) is provided inside the fixing groove (20), and a fixing plate (21) is hinged to the front end of the fixing groove (20). A servo motor (22) is connected to the rear end of the connecting shaft (23), and a polishing head body (24) is connected to the outside of the connecting shaft (23).
2. The polishing apparatus for machining mechanical parts with an easily removable and replaceable polishing head according to claim 1, characterized in that, The front end of the connecting shaft (23) is snapped to the fixing plate (21), and the bottom plate (2) is provided with an electric push rod (14), and the inner side of the electric push rod (14) is connected to a push plate (15).
Citation Information
Patent Citations
Efficient polishing device for mechanical part machining
CN216179445U