Injection molding part assembly hole polishing mechanism

Abstract

This utility model relates to the field of injection molding part grinding technology, and discloses a grinding mechanism for injection molding part assembly holes, including a fixed frame, a connecting cylinder fixedly connected to the upper surface of the fixed frame, a motor fixedly installed at the upper end of the connecting cylinder, a hollow shaft rotatably installed at one end of the motor, a grinding head fixedly connected to the lower end of the hollow shaft, the grinding head having a cavity, a negative pressure hole provided at the upper end of the outer surface of the hollow shaft, the hollow shaft rotatably installed inside the connecting cylinder, the negative pressure hole located inside the connecting cylinder, a cover plate assembled with one side opening of the connecting cylinder, an installation hole provided on the other side surface of the connecting cylinder, a first fixing plate fixedly installed on the outer surface of the installation hole, a connecting pipe rotatably connected inside the first fixing plate, a negative pressure pump fixedly connected to one end of the connecting pipe, and by installing the negative pressure pump and a filter cylinder on the side, it can directly filter and collect the material, avoiding clogging and exhibiting high adaptability.

Description

Technical Field

[0001] This utility model relates to the field of injection molding grinding technology, specifically to a grinding mechanism for assembly holes in injection molding parts. Background Technology

[0002] Automotive injection molded parts are components of automobiles. During the production and processing of automotive injection molded parts, grinding equipment is required to grind the mounting holes on their surfaces. Before grinding the automotive injection molded parts, clamping devices are used to hold and fix them in place. During the clamping and locking process, wear or even deformation of the mounting surfaces of the automotive injection molded parts can easily occur, affecting their performance.

[0003] Application CN 218110194 U discloses a grinding device for assembly holes of automotive injection molded parts, including a support base, a support frame, an electric push rod, and an assembly plate. The support frame is vertically mounted on the upper surface of the support base, and the electric push rod is fixedly connected to the lower surface of the support frame. The transmission output end of the electric push rod is connected to the assembly plate. An assembly frame is fixedly connected to the upper surface of the support base, and a rectangular support block is fixedly connected inside the assembly groove of the assembly frame. Suction holes are symmetrically arranged on the surface of the rectangular support blocks of the assembly frame. Rubber pads are adhered to the upper surface of the rectangular support blocks. The automotive injection molded part is placed on the surface of the rubber pads of the rectangular support blocks, keeping the lower surface of the injection molded part in contact with the opening end of the suction hole. An air pump extracts gas from inside the rectangular support blocks, and under negative pressure, the injection molded part is fixed, reducing wear and deformation of the injection molded part surface and improving the performance.

[0004] The aforementioned disclosed structure lacks a hollow shaft and grinding head for connecting cylinder installation, making it impossible to directly perform negative pressure adsorption dust removal at the grinding position, affecting grinding quality and efficiency. Furthermore, it lacks a combined negative pressure pump, which is not conducive to direct filtration and cleaning maintenance, is prone to clogging, and has insufficient stability, thus requiring improvement. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a grinding mechanism for assembly holes of injection molded parts, which solves the problems of existing grinding mechanisms being unable to directly align for negative pressure dust removal and being prone to clogging.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a grinding mechanism for assembly holes of injection molded parts, comprising a fixed frame, a connecting cylinder fixedly connected to the upper surface of the fixed frame, a motor fixedly mounted at the upper end of the connecting cylinder, a hollow shaft rotatably mounted at one end of the motor, a grinding head fixedly connected to the lower end of the hollow shaft, the grinding head having a cavity, a negative pressure hole provided at the upper end of the outer surface of the hollow shaft, the hollow shaft rotatably mounted inside the connecting cylinder, the negative pressure hole located inside the connecting cylinder, a cover plate assembled with one side opening of the connecting cylinder, an installation hole provided on the other side surface of the connecting cylinder, a first fixing plate fixedly mounted on the outer surface of the installation hole, a connecting pipe rotatably connected inside the first fixing plate, a negative pressure pump fixedly connected at one end of the connecting pipe, and a positioning screw assembled with the surface of the first fixing plate, the positioning screw being threaded onto the outer surface of the connecting cylinder.

[0007] Preferably, a filter cylinder is fixedly connected to the other end of the connecting pipe, and the filter cylinder is inserted into the mounting hole.

[0008] Preferably, a filter screen is fitted onto one end of the filter cylinder, and a positioning ring is fixedly fitted onto the outer surface of the filter screen.

[0009] Preferably, the positioning ring is fixedly snapped onto the outer surface of the filter cylinder and located inside the connecting cylinder. It is connected to the filter cylinder through the connecting pipe and, together with the positioning ring, positions the filter screen. This allows for combined installation and positioning, enabling direct negative pressure extraction filtration, facilitating cleaning, and ensuring grinding quality and efficiency.

[0010] Preferably, a second fixing plate is fixedly connected to one side of the inner side of the connecting cylinder, and an elastic rod is fixedly connected to one side of the second fixing plate.

[0011] Preferably, a cleaning brush is fixedly attached to one side surface of the elastic rod, and the cleaning brush is attached to the outer surface of the filter screen.

[0012] Preferably, the elastic rod is located at the end of the filter cylinder, and the elastic rod and the cleaning brush are connected by the second fixing plate. This allows it to fit the surface of the filter screen, facilitating rotation for cleaning and maintenance, preventing clogging, ensuring high efficiency and stability in negative pressure dust removal.

[0013] Compared with the prior art, this utility model provides a grinding mechanism for assembly holes of injection molded parts, which has the following beneficial effects: Through its design, the grinding mechanism is equipped with a hollow shaft and grinding head mounted on a connecting cylinder. It also features a cavity and a negative pressure hole, allowing for direct negative pressure extraction at the grinding position to collect dust. This avoids affecting the grinding position, ensuring precision and stability. Furthermore, by mounting a negative pressure pump and a filter cartridge on the side, it can directly filter and collect dust, preventing clogging and offering high adaptability. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partial structural diagram of the negative pressure pump connection of this utility model; Figure 3 This is a partial cross-sectional view of the filter cylinder connection in this utility model; Figure 4 This is a cross-sectional schematic diagram of the hollow shaft and grinding head of this utility model; Figure 5 This is a schematic diagram of the structure of the filter cartridge of this utility model; Figure 6 This is a schematic diagram of the elastic rod connection in this utility model.

[0015] In the diagram: 1. Fixing frame, 11. Connecting cylinder, 12. Motor, 13. Hollow shaft, 14. Grinding head, 15. Cavity, 16. Negative pressure hole, 17. Cover plate, 2. Mounting hole, 21. First fixing plate, 22. Negative pressure pump, 23. Positioning screw, 24. Connecting pipe, 25. Filter cylinder, 26. Filter screen, 27. Positioning ring, 3. Second fixing plate, 31. Elastic rod, 32. Cleaning brush. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] This utility model provides a technical solution: a grinding mechanism for assembly holes in injection molded parts. Please refer to [link / reference]. Figure 1 , Figure 2 and Figure 4A grinding mechanism for assembly holes of injection molded parts includes a fixed frame 1, which can be assembled and installed on a grinding equipment to grind the positioning and clamping structure, making it convenient and efficient. A connecting cylinder 11 is fixedly connected to the upper surface of the fixed frame 1. A motor 12 is fixedly installed at the upper end of the connecting cylinder 11. A hollow shaft 13 is rotatably installed at one end of the motor 12. A grinding head 14 is fixedly connected to the lower end of the hollow shaft 13. The motor 12 drives the hollow shaft 13 and the grinding head 14 to rotate, which can grind the assembly holes of the injection molded parts, thereby removing excess material such as flash, which is beneficial for subsequent assembly positioning, and is precise and stable. The grinding head 14 has a cavity 15. A negative pressure hole 16 is provided at the upper end of the outer surface of the hollow shaft 13. The hollow shaft 13 is rotatably installed inside the connecting cylinder 11, and the negative pressure hole 16 is located inside the cavity 15. Inside the connecting cylinder 11, dust is generated during the grinding process. The hollow shaft 13 is directly connected through the cavity 15, allowing negative pressure to draw air from the grinding location and guide the dust into the hollow shaft 13. After passing through the negative pressure hole 16, the dust enters the connecting cylinder 11 for storage and collection. This efficient and stable process facilitates timely dust handling, avoids contaminating the grinding environment, reduces dust residue at the grinding location, ensures grinding weight, and offers high adaptability. A cover plate 17 is installed on one side of the connecting cylinder 11, allowing for... The cover plate 17 facilitates internal cleaning and maintenance, offering high adaptability. The other side surface of the connecting cylinder 11 has mounting holes 2. A first fixing plate 21 is fixedly installed on the outer surface of the mounting holes 2. A connecting pipe 24 is rotatably connected inside the first fixing plate 21. One end of the connecting pipe 24 is fixedly connected to a negative pressure pump 22. Positioning screws 23 are threaded onto the outer surface of the connecting cylinder 11. The screws 23 connected to the first fixing plate 21 allow for separate installation and fixation, facilitating direct alignment of the negative pressure pump 22. Furthermore, the rotatable installation of the connecting pipe 24 inside the first fixing plate 21 allows for easy adjustment and subsequent cleaning and maintenance, offering high adaptability. By installing a hollow shaft and grinding head through the connecting cylinder, and by providing a cavity and negative pressure holes, dust can be collected directly at the grinding position through negative pressure extraction, avoiding interference with the grinding position and ensuring precision and stability. Additionally, the negative pressure pump and filter cartridge installed on the side allow for direct filtration and collection, preventing clogging and further enhancing adaptability.

[0018] Please see Figure 2 , Figure 3 and Figure 5The other end of the connecting pipe 24 is fixedly connected to a filter cylinder 25, which is inserted into the mounting hole 2. One end of the filter cylinder 25 is open and fitted with a filter screen 26. A positioning ring 27 is fixedly fitted onto the outer surface of the filter screen 26. The positioning ring 27 is fixedly snapped onto the outer surface of the filter cylinder 25 and located inside the connecting cylinder 11. The filter cylinder is connected through the connecting pipe, and the filter screen is positioned by the positioning ring. It can be assembled and positioned for direct negative pressure extraction and filtration, which is convenient for cleaning and ensures grinding quality and efficiency. The air inside the connecting cylinder 11 can be directly extracted by the negative pressure pump 22 to form a negative pressure structure. This can extract the dust from the grinding position. After passing through the hollow shaft 13 and the negative pressure hole 16, the dust enters the front part of the connecting cylinder 11. After being filtered by the filter screen 26, the air can be extracted, and the dust is retained inside, which is conducive to centralized treatment. It is convenient, efficient, and ensures the stability of the grinding position with high adaptability.

[0019] Please see Figure 1 , Figure 3 and Figure 6 A second fixing plate 3 is fixedly connected to one side of the inner side of the connecting cylinder 11. An elastic rod 31 is fixedly connected to one side of the second fixing plate 3. A cleaning brush 32 is fixedly attached to one side surface of the elastic rod 31. The cleaning brush 32 is attached to the outer surface of the filter screen 26. The elastic rod 31 is located at the end of the filter cylinder 25. The elastic rod and the cleaning brush are connected by the second fixing plate 3, which can fit the surface of the filter screen, facilitate rotation for cleaning and maintenance, avoid clogging, ensure negative pressure dust removal efficiency, and achieve high efficiency and stability. The second fixing plate 3 fixes the position and can fully install the elastic rod 31, thereby positioning the cleaning brush 32 inside the connecting cylinder 11. After the filter cylinder 25 is inserted into the mounting hole 2 and positioned, the filter screen 26 can contact the surface of the cleaning brush 32. After negative pressure suction, some abrasive dust will adhere to the surface of the filter screen 26. The connecting pipe 24 can be manually rotated to rotate the filter cylinder 25. When the surface of the filter screen 26 passes through the cleaning brush 32, the dust can be brushed off, avoiding clogging, facilitating cleaning and maintenance, and making it convenient for combined use.

[0020] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0021] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An injection molding part assembly hole polishing mechanism, comprising a fixing frame (1), the upper surface of the fixing frame (1) is fixedly connected with a connecting cylinder (11), the upper end of the connecting cylinder (11) is fixedly installed with a motor (12), characterized in that: A hollow shaft (13) is rotatably mounted on one end of the motor (12). A grinding head (14) is fixedly connected to the lower end of the hollow shaft (13). The grinding head (14) has a cavity (15). A negative pressure hole (16) is provided on the upper end of the outer surface of the hollow shaft (13). The hollow shaft (13) is rotatably mounted inside the connecting cylinder (11). The negative pressure hole (16) is located inside the connecting cylinder (11). A cover plate (17) is installed on one side of the opening of the connecting cylinder (11). An installation hole (2) is provided on the other side surface of the connecting cylinder (11). A first fixing plate (21) is fixedly mounted on the outer surface of the installation hole (2). A connecting pipe (24) is rotatably connected inside the first fixing plate (21). A negative pressure pump (22) is fixedly connected to one end of the connecting pipe (24). A positioning screw (23) is installed on the surface of the first fixing plate (21). The positioning screw (23) is threaded onto the outer surface of the connecting cylinder (11).

2. The injection molding part assembly hole polishing mechanism according to claim 1, characterized in that: The other end of the connecting pipe (24) is fixedly connected to a filter cylinder (25), which is inserted into the mounting hole (2).

3. The injection molding part assembly hole grinding mechanism according to claim 2, characterized in that: One end of the filter cylinder (25) is open and fitted with a filter screen (26), and a positioning ring (27) is fixedly fitted on the outer surface of the filter screen (26).

4. The injection molding part assembly hole grinding mechanism according to claim 3, characterized in that: The positioning ring (27) is fixedly snapped onto the outer surface of the filter cylinder (25) and located inside the connecting cylinder (11).

5. The grinding mechanism for assembly holes of injection molded parts according to claim 1, characterized in that: A second fixing plate (3) is fixedly connected to one side of the inner side of the connecting cylinder (11), and an elastic rod (31) is fixedly connected to one side of the second fixing plate (3).

6. The injection molding part assembly hole grinding mechanism according to claim 5, characterized in that: A cleaning brush (32) is fixedly attached to one side surface of the elastic rod (31), and the cleaning brush (32) is attached to the outer surface of the filter screen (26).

7. The injection molding part assembly hole grinding mechanism according to claim 5, characterized in that: The elastic rod (31) is located at the end of the filter cylinder (25).

Images