A deformable pneumatic sander

Abstract

The utility model discloses a kind of deformable pneumatic polishers, including shell, pneumatic motor being installed in the shell and polishing assembly driven by the pneumatic motor, it is characterized by: the polishing assembly includes support plate, connecting rod mechanism being connected with the support plate and spring that the support plate is pushed, the support plate is made of soft material.The support plate of the utility model is made of soft material, when pressure is applied, support plate is deformed and adhered to polishing surface, can be suitable for special-shaped surface polishing, improve polishing effect, easy to operate.

Description

Technical Field

[0001] This utility model relates to a pneumatic grinder for polishing. Background Technology

[0002] In the prior art, such as Chinese utility model patent No. CN202421145099.X, published on April 8, 2025, a square electric grinder is disclosed, including a square housing, a motor, an eccentric block, and a grinding disc mounting plate for mounting the grinding disc. The motor is mounted on the square housing, the eccentric block is mounted on the motor's rotating shaft, and the grinding disc mounting plate is movably mounted on the square housing, with the inner sidewall of the mounting plate abutting against the outer sidewall of the eccentric block. This application uses a motor to drive the eccentric block to rotate eccentrically, thereby pushing the grinding disc mounting plate to reciprocate along the radial direction of the motor's rotating shaft, causing the grinding disc on the mounting plate to grind and polish the workpiece. In the above solution, the mounting plate is a flat plate structure, which results in poor grinding effect and is difficult to operate when grinding non-planar surfaces. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a deformable pneumatic grinder with good grinding effect and convenient operation.

[0004] A deformable pneumatic grinder according to the present invention includes a housing, a pneumatic motor installed in the housing, and a grinding assembly driven by the pneumatic motor. The grinding assembly includes a support plate, a linkage mechanism connected to the support plate, and a spring for pushing the support plate. The support plate is made of a soft material.

[0005] The deformable pneumatic grinder provided by this utility model also has the following auxiliary technical features:

[0006] Further comprising, the linkage mechanism includes a first link and a second link, one end of the first link being hinged to one end of the support plate, the other end of the first link being connected to the housing, one end of the second link being hinged to the other end of the support plate, and the other end of the second link being connected to the housing.

[0007] Further, one end of the spring abuts against the housing, and the other end of the spring abuts against the middle of the support plate.

[0008] Further, the drive shaft of the pneumatic motor is connected to the support plate, and the spring is mounted on the drive shaft.

[0009] Furthermore, a deformation gap is provided between the support plate and the housing.

[0010] Furthermore, the maximum deformation of the support plate is 1mm-20mm.

[0011] Compared with the prior art, the deformable pneumatic grinder provided by this utility model has the following advantages: the support plate of this utility model is made of soft material. When pressure is applied, the support plate deforms and fits against the grinding surface, which can be used for grinding irregular surfaces, improves the grinding effect, and is easy to operate. Attached Figure Description

[0012] Figure 1 This is the front view of the present utility model.

[0013] Figure 2 This is a perspective view of the present invention.

[0014] Figure 3 This is a perspective view of the present invention from another angle. Detailed Implementation

[0015] To clearly illustrate the solutions in this utility model, preferred embodiments are given below in conjunction with the accompanying drawings for detailed description. The following description is merely exemplary and not intended to limit the application or use of this disclosure. It should be understood that throughout the drawings, corresponding reference numerals denote the same or corresponding parts and features.

[0016] like Figures 1 to 3 As shown, this utility model provides a deformable pneumatic grinder, including a housing 1, a pneumatic motor installed in the housing 1, and a grinding assembly 2 driven by the pneumatic motor. The grinding assembly 2 includes a support plate 21, a linkage mechanism 22 connected to the support plate 21, and a spring 23 pushing the support plate 21. The support plate 21 is made of a soft material. The pneumatic motor in this utility model is a mature existing technology, and its specific structure and working principle will not be described in detail here. The pneumatic motor is driven by high-pressure gas supplied externally. A toggle switch is also provided on the housing 1 to control the on / off of the high-pressure gas. The main improvement of this utility model is that the support plate 21 is made of a soft material, which can deform under external force to conform to the grinding surface, meet the grinding needs of irregular surfaces, improve the grinding effect, and facilitate operation. Soft materials refer to materials with a certain strength that can deform under external force. Examples include plastics and rubber, or a combination of metal and plastic. The support plate 21 is used to install sandpaper, or other polishing materials are installed on the support plate 21.

[0017] See Figures 1 to 3In the above embodiments of this utility model, the linkage mechanism 22 further includes a first link 221 and a second link 222. One end of the first link 221 is hinged to one end of the support plate 21, and the other end of the first link 221 is connected to the housing 1. One end of the second link 222 is hinged to the other end of the support plate 21, and the other end of the second link 222 is connected to the housing 1. The linkage mechanism 22 is connected to both ends of the support plate 21. When deformation occurs, the linkage mechanism 22 provides deformation compensation movement, which is beneficial to deformation.

[0018] See Figures 1 to 3 In the above embodiment of this utility model, one end of the spring 23 abuts against the housing 1, and the other end of the spring 23 abuts against the middle of the support plate 21. The spring 23 pushes the support plate 21 to return to its original position, so that the support plate 21 can be tightly attached to the grinding surface.

[0019] See Figures 1 to 3 In the above embodiment of this utility model, the pneumatic motor drive shaft 11 is connected to the support plate 21, and the spring 23 is mounted on the drive shaft 11. The drive shaft 11 drives the support plate 21 to reciprocate back and forth, thereby achieving grinding.

[0020] See Figures 1 to 3 In the above embodiments provided by this utility model, a deformation gap is further provided between the support plate 21 and the housing 1. The deformation gap is greater than 20mm to provide sufficient deformation space.

[0021] See Figures 1 to 3 In the above embodiments of this utility model, the maximum deformation of the support plate 21 is 1mm-20mm. In this embodiment, the maximum deformation is 15mm. This allows it to meet the grinding deformation needs of different irregular surfaces, resulting in better grinding performance.

[0022] In summary, the above description is merely an embodiment of this utility model and is only used to illustrate the principle of this utility model, not to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A deformable pneumatic sander comprising a housing, a pneumatic motor mounted in said housing and a sanding assembly driven by said pneumatic motor, characterised in that: The polishing assembly includes a support plate, a linkage mechanism connected to the support plate, and a spring for pushing the support plate. The support plate is made of a soft material.

2. A flexible pneumatic sander as claimed in claim 1, characterized in that: The linkage mechanism includes a first link and a second link. One end of the first link is hinged to one end of the support plate, and the other end of the first link is connected to the housing. One end of the second link is hinged to the other end of the support plate, and the other end of the second link is connected to the housing.

3. A flexible pneumatic sander as defined in claim 1, wherein: One end of the spring abuts against the housing, and the other end of the spring abuts against the middle of the support plate.

4. A flexible pneumatic sander as defined in claim 1, wherein: The drive shaft of the pneumatic motor is connected to the support plate, and the spring is mounted on the drive shaft.

5. A flexible pneumatic sander as defined in claim 1, wherein: A deformation gap is provided between the support plate and the housing.

6. A flexible pneumatic sander as defined in claim 1, wherein: The maximum deformation of the support plate is 1mm-20mm.

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