Polishing device for automobile door guard plate machining
By introducing protective and dust collection structures into the automotive door panel polishing device, the problem of debris splashing is solved, achieving efficient and flexible polishing results while protecting the environment and the health of operators.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU SAIFU PRECISION MOLD CO LTD
- Filing Date
- 2025-04-15
- Publication Date
- 2026-04-14
AI Technical Summary
Existing automotive door panel polishing equipment lacks effective protection and dust collection measures, resulting in debris splashing, polluting the environment and affecting health, while also making it difficult to achieve flexible and efficient polishing.
The design incorporates protective and dust collection components. The protective cover is connected to the polishing wheel and fits tightly with a spring. The ventilation slot design facilitates dust collection. The dust collection component uses a fan to draw debris into the dust collection cylinder. A cross-shaped linear guide rail on the top plate drives the polishing component to move, enabling flexible polishing.
It effectively prevents debris from splashing, protects the environment and health, improves polishing efficiency and quality, and enables flexible polishing of different parts.
Smart Images

Figure CN224115894U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive processing technology, specifically a polishing device for processing automotive door panels. Background Technology
[0002] Polishing is a processing method that uses mechanical, chemical, or electrochemical processes to reduce the surface roughness of a workpiece in order to obtain a bright and smooth surface. It involves using polishing tools and abrasive particles or other polishing media to refine the surface of a workpiece.
[0003] The utility model patent with authorization announcement number CN211805398U discloses a polishing device for processing the surface of a car door. The device includes a main body, a first motor mounted on one side of its top, a dustproof shell on the outer surface of the first motor, and a first rotating shaft connected to the output end of the first motor. A drive gear is connected to the end of the first rotating shaft furthest from the first motor. This polishing device for processing the surface of a car door also includes a baffle, a groove, a spring, and a clamping plate. When the car door is placed on the baffle, the user can pull the clamping plate, causing it to slide upwards through the groove and stretch the spring. After the car door is properly positioned, the user can lower the clamping plate, allowing the spring to return to its original position and pulling the clamping plate downwards to secure the car door. This prevents poor polishing quality caused by an unstable car door during polishing.
[0004] However, existing polishing devices for car door surface processing do not mention effective protection and dust collection measures. During the polishing process, debris is easily splashed into the surrounding environment, which not only pollutes the working environment but may also affect the health of operators. It is also not conducive to subsequent cleaning work. Moreover, the existing devices only drive the polishing components through the first motor and the drive gear. For polishing different parts of the car door, it may be necessary to frequently manually adjust the position of the car door or the angle of the polishing device, making it difficult to achieve flexible and efficient polishing of various parts of the car door. The polishing efficiency and quality are limited to a certain extent. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a polishing device for processing automotive door panels, thus solving the aforementioned problems.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a polishing device for processing automotive door panels, comprising:
[0007] The base has a buffer block for placing the door panel bonded to the middle of its upper surface, and clamping plates for limiting the door panel are provided at both ends of the upper surface of the base.
[0008] The top plate is located above the base. The four corners of the lower surface of the top plate are connected to the base through adjusting columns. An adjusting guide rail is installed in the middle of the lower surface of the top plate. The adjusting guide rail consists of two straight guide rails arranged in a cross shape, which are used to drive the polished parts to move.
[0009] A polishing component, which is mounted on an adjustment rail on the top plate, is used to polish the car door panel;
[0010] A protective component is disposed below the polishing component to protect the polishing wheel of the polishing component, and the protective component is movably connected to the fixed end of the polishing component.
[0011] A dust collection component is installed on a protective component and is used to draw dust from the inner cavity of the protective component into the dust collection component via a fan.
[0012] Preferably, the clamping plate on the base is mounted on the base via a dovetail slider and a dovetail groove, and the clamping plate is moved by telescopic cylinders installed at both ends of the base.
[0013] Preferably, the polishing component includes a mounting plate fixed to the movable end of the adjusting guide rail, a motor fixed to the lower surface of the mounting plate, a polishing wheel fixed to the output shaft of the motor for polishing the car door panel, and dovetail sliders fixed to the inner walls on both sides of the mounting plate.
[0014] Preferably, the protective component includes a protective cover disposed on the outside of the polishing wheel, the protective cover having a through hole in the middle that is connected to the motor output shaft, vertical plates fixed at both ends of the upper surface of the protective cover, and a dovetail groove provided on one side of the vertical plate, the dovetail groove being inserted into and connected to a dovetail slider.
[0015] Preferably, the upper surface of the protective cover is provided with multiple springs arranged in a linear array at both ends, the top of the springs is connected to the bottom of both sides of the mounting plate, the lower surface of the protective cover is provided with multiple equally spaced ventilation slots, and a polishing agent cylinder is connected to one side of the upper surface of the protective cover through internal and external threads. The polishing agent cylinder is used to input polishing agent into the protective cover through a solenoid valve and an output pipe.
[0016] Preferably, the dust collection component includes a fixing plate fixed to the other side of the upper surface of the protective cover. Both sides of one side of the fixing plate are fixed to the protective cover by reinforcing plates. The middle of one side of the fixing plate is connected to the inner cavity of the protective cover through a dust collection pipe. A connecting sleeve is fixed to the middle of the other side of the fixing plate. A dust collection cylinder is connected to the connecting sleeve by internal and external threads. A fan is fixed to the end of the dust collection cylinder away from the fixing plate.
[0017] Beneficial effects
[0018] This utility model provides a polishing device for processing automotive door panels. Compared with the prior art, it has the following advantages:
[0019] 1. This polishing device for automotive door panels incorporates protective and dust collection components. The protective cover not only protects the polishing wheel from flying debris but also connects to the mounting plate via springs, ensuring a tight fit with the automotive door panel. The ventilation slots facilitate dust collection. A fan in the dust collection component draws debris from the protective cover into a dust collection cylinder via a dust collection pipe. The dust collection cylinder is removable, washable, and replaceable, effectively solving the debris problem during polishing and protecting the working environment and the health of operators.
[0020] 2. This polishing device for processing automotive door panels uses an adjusting guide rail consisting of two cross-shaped linear guide rails on the top plate to move the polishing part in different directions, thereby polishing different parts of the automotive door panel without frequent manual adjustment of the door panel or device angle. At the same time, the synchronous adjusting column can move the top plate up and down, which facilitates the installation and adjustment of the device, greatly improves the flexibility and efficiency of polishing, and ensures the polishing quality. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0022] Figure 2 This is a schematic diagram showing the structural connection of the polishing component, protective component, and dust collection component of this utility model;
[0023] Figure 3 This is a schematic diagram of the polishing part and the protective part of this utility model;
[0024] Figure 4 This is a schematic diagram of the dust collection component of this utility model.
[0025] In the diagram: Base 1, Buffer block 11, Clamping plate 12, Adjusting column 13, Top plate 2, Adjusting guide rail 21, Polishing part 3, Mounting plate 31, Motor 32, Polishing wheel 33, Dovetail slider 34, Protective part 4, Protective cover 41, Vertical plate 42, Dovetail groove 43, Spring 44, Ventilation groove 45, Polishing agent cylinder 46, Dust collection part 5, Fixing plate 51, Reinforcing plate 52, Connecting sleeve 53, Dust collection cylinder 54, Fan 55. Detailed Implementation
[0026] 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.
[0027] Please see Figure 1-4 The present invention provides the following technical solution:
[0028] A polishing device for processing automotive door panels includes a base 1, a top plate 2, a polishing component 3, a protective component 4, and a dust collection component 5. A buffer block 11 for placing the door panel is bonded to the middle of the upper surface of the base 1. Clamping plates 12 for limiting the door panel are provided at both ends of the upper surface of the base 1. The clamping plates 12 on the base 1 are set on the base 1 by dovetail sliders and dovetail grooves, and the clamping plates 12 are moved by telescopic cylinders installed at both ends of the base 1.
[0029] Specifically, the top plate 2 is located above the base 1. The four corners of the lower surface of the top plate 2 are connected to the base 1 through adjusting columns 13. The adjusting columns 13 are electric push rods. The four adjusting columns 13 are synchronous electric push rods, which can drive the top plate 2 to move up and down. An adjusting guide rail 21 is installed in the middle of the lower surface of the top plate 2. The adjusting guide rail 21 consists of two straight guide rails arranged in a cross shape, which are used to drive the polishing part 3 to move, so that the polishing part 3 can polish different parts of the car door panel.
[0030] Specifically, the polishing component 3 is set on the adjustment guide rail 21 on the top plate 2. The polishing component 3 is used to polish the car door panel. The polishing component 3 includes a mounting plate 31 fixed to the movable end of the adjustment guide rail 21. A motor 32 is fixed on the lower surface of the mounting plate 31. A polishing wheel 33 is fixed on the output shaft of the motor 32 for polishing the car door panel. Dovetail sliders 34 are fixed on both inner walls of the mounting plate 31.
[0031] More specifically, the protective component 4 is located below the polishing component 3 to protect the polishing wheel 33 of the polishing component 3. The protective component 4 is movably connected to the fixed end of the polishing component 3. The protective component 4 includes a protective cover 41 located outside the polishing wheel 33. A through hole is provided in the middle of the protective cover 41, which is connected to the output shaft of the motor 32. Vertical plates 42 are fixed to both ends of the upper surface of the protective cover 41. A dovetail groove 43 is provided on one side of the vertical plate 42. The dovetail groove 43 is inserted into and connected to a dovetail slider 34, serving as a limiting mechanism to keep the protective cover 41 moving vertically up and down. Multiple springs 44 arranged in a linear array are provided at both ends of the upper surface. The top of the springs 44 is connected to the bottom of both sides of the mounting plate 31. The springs 44 serve to press and limit, so that the protective cover 41 fits tightly with the car door panel. Multiple equally spaced ventilation slots 45 are provided on the lower surface of the protective cover 41 to facilitate ventilation, so that the dust collection component 5 can remove the debris inside the protective cover 41. A polishing agent cylinder 46 is connected to one side of the upper surface of the protective cover 41 through internal and external threads. The polishing agent cylinder 46 inputs polishing agent into the protective cover 41 through a solenoid valve and an output pipe.
[0032] More specifically, the dust collection component 5 is installed on the protective component 4 and is used to draw dust from the inner cavity of the protective component 4 into the dust collection component 5 by the fan 55. The dust collection component 5 includes a fixing plate 51 fixed to the other side of the upper surface of the protective cover 41. Both sides of one side of the fixing plate 51 are fixed to the protective cover 41 by reinforcing plates 52. The middle of one side of the fixing plate 51 is connected to the inner cavity of the protective cover 41 through a dust collection pipe. A connecting sleeve 53 is fixed to the middle of the other side of the fixing plate 51. A dust collection cylinder 54 is connected to the connecting sleeve 53 by internal and external threads. A fan 55 is fixed to the end of the dust collection cylinder 54 away from the fixing plate 51. When the fan 55 is started, it can draw debris from the protective cover 41 into the dust collection cylinder 54 through the dust collection pipe.
[0033] When this device is in operation, the car door panel is first placed on the buffer block 11 on the base 1. Then, the telescopic cylinder on the base 1 is activated, which moves the clamping plate 12 until the two clamping plates 12 clamp and limit the car door panel. Then, the four synchronous adjusting columns 13 at the four corners of the base 1 are activated, which moves the top plate 2 downward until the protective cover 41 contacts the car door panel. Then, the polishing agent in the polishing agent cylinder 46 is injected into the car door panel through the solenoid valve. At the same time, the motor 32 is started, which drives the polishing wheel 33 to rotate and polish the car door panel. The polishing part 3 can be moved by the adjusting guide rail 21 on the top plate 2 to polish different parts of the car door panel. The debris generated during the polishing process is blocked by the protective cover 41 and will not splash around. At the same time, the fan 55 is started, and the fan 55 draws the debris in the protective cover 41 into the dust collection cylinder 54 through the dust collection pipe. The dust collection cylinder 54 is designed to be detachable. After polishing is completed, the dust collection cylinder 54 can be disassembled, cleaned and replaced without affecting the next polishing.
[0034] Furthermore, all content not described in detail in this specification is existing technology known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used.
[0035] 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.
[0036] 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. A polishing apparatus for processing automotive door panels, characterized in that, include: The base has a buffer block for placing the door panel bonded to the middle of its upper surface, and clamping plates for limiting the door panel are provided at both ends of the upper surface of the base. The top plate is located above the base. The four corners of the lower surface of the top plate are connected to the base through adjusting columns. An adjusting guide rail is installed in the middle of the lower surface of the top plate. The adjusting guide rail consists of two straight guide rails arranged in a cross shape, which are used to drive the polished parts to move. A polishing component, which is mounted on an adjustment rail on the top plate, is used to polish the car door panel; A protective component is disposed below the polishing component to protect the polishing wheel of the polishing component, and the protective component is movably connected to the fixed end of the polishing component. A dust collection component is installed on a protective component and is used to draw dust from the inner cavity of the protective component into the dust collection component via a fan.
2. The polishing device for processing automotive door panels according to claim 1, characterized in that: The clamping plate on the base is set on the base by a dovetail slider and a dovetail groove, and the clamping plate is moved by telescopic cylinders installed at both ends of the base.
3. The polishing device for processing automotive door panels according to claim 1, characterized in that: The polishing component includes a mounting plate fixed to the movable end of the adjusting guide rail. A motor is fixed to the lower surface of the mounting plate, and a polishing wheel is fixed to the output shaft of the motor for polishing the car door panel. Dovetail sliders are fixed to the inner walls on both sides of the mounting plate.
4. The polishing device for processing automotive door panels according to claim 1, characterized in that: The protective component includes a protective cover disposed on the outside of the polishing wheel. The protective cover has a through hole in the middle that is connected to the motor output shaft. Vertical plates are fixed at both ends of the upper surface of the protective cover. A dovetail groove is provided on one side of the vertical plate. The dovetail groove is connected to a dovetail slider.
5. A polishing device for processing automotive door panels according to claim 4, characterized in that: The upper surface of the protective cover is provided with multiple springs arranged in a linear array at both ends. The top of the springs is connected to the bottom of both sides of the mounting plate. Multiple venting grooves are evenly distributed on the lower surface of the protective cover. A polishing agent cylinder is connected to one side of the upper surface of the protective cover through internal and external threads. The polishing agent cylinder is used to input polishing agent into the protective cover through a solenoid valve and an output pipe.
6. The polishing apparatus for processing automotive door panels according to claim 1, characterized in that: The dust collection component includes a fixing plate fixed to the other side of the upper surface of the protective cover. Both sides of one side of the fixing plate are fixed to the protective cover by reinforcing plates. The middle of one side of the fixing plate is connected to the inner cavity of the protective cover through a dust collection pipe. A connecting sleeve is fixed to the middle of the other side of the fixing plate. A dust collection cylinder is connected to the connecting sleeve through internal and external threads. A fan is fixed to the end of the dust collection cylinder away from the fixing plate.
Citation Information
Patent Citations
Polishing device for vehicle door surface machining
CN211805398U