Adjustable ceramic brush

Abstract

The invention discloses an adjustable ceramic brush which comprises a connecting mounting seat arranged on a tool handle of a machine tool and a ceramic brush body used for polishing a workpiece to be polished, and further comprises an adjusting polishing unit and a synchronous mounting and dismounting unit. The adjusting and polishing unit is arranged on the connecting and mounting seat; the adjusting and polishing unit is used for adjusting the contact distance between the ceramic brush and the to-be-polished workpiece; the synchronous mounting and dismounting unit is arranged on the connecting mounting seat; and the synchronous mounting and dismounting unit is used for quickly mounting and dismounting the multiple ceramic brushes, the problem that when the ceramic brushes are used for polishing a to-be-polished workpiece, effective polishing is difficult due to use abrasion is solved, and the effect of continuously polishing the to-be-polished workpiece is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of machine tool polishing, more particularly, it relates to an adjustable ceramic brush. BACKGROUND

[0002] In the field of industrial manufacturing and processing, the polishing process is a key link to ensure the surface quality, dimensional accuracy of workpieces and meet the requirements of subsequent processing or use. Among them, the ceramic brush is outstanding among many polishing tools due to its unique physical and chemical properties, such as high hardness, good wear resistance, corrosion resistance and stable performance at high temperature, etc., and is widely used in surface polishing, deburring, polishing and other processing procedures of metal, non-metal and other materials workpieces.

[0003] At present, there is a significant problem in ceramic brushes on the market that needs to be solved. When using a ceramic brush to polish a workpiece to be polished, the ceramic brush will inevitably be worn out as the polishing work continues. This wear is manifested in many aspects, such as the gradual thinning of the diameter and shortening of the length of the ceramic bristles, the loose and disordered arrangement of the bristles, etc.

[0004] Due to the above-mentioned wear, the polishing performance of the ceramic brush will decrease sharply. After wear, the originally close and regular arrangement of the bristles is difficult to maintain sufficient and uniform contact with the surface of the workpiece to be polished as a new brush. This results in uneven force distribution on the workpiece surface during polishing, and some areas may not be effectively polished due to insufficient force, resulting in incomplete polishing, non-compliance with surface roughness, etc. ; while another part of the area may cause excessive wear or even damage to the workpiece surface due to excessive force. SUMMARY

[0005] In view of the deficiencies of the prior art, the purpose of the present application is to provide an adjustable ceramic brush capable of adjusting the length of the ceramic brush.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions: The present application is further provided as follows: a connecting mounting seat provided on a machine tool handle and a ceramic brush for polishing a workpiece to be polished, the adjustable ceramic brush further comprises an adjusting polishing unit and a synchronous mounting and dismounting unit; the adjusting polishing unit is provided on the connecting mounting seat; the adjusting polishing unit is used to adjust the contact distance between the ceramic brush and the workpiece to be polished; the synchronous mounting and dismounting unit is provided on the connecting mounting seat; the synchronous mounting and dismounting unit is used to quickly mount and dismount a plurality of ceramic brushes.

[0007] By adopting the above-mentioned technical solutions, the problem that the ceramic brush is difficult to effectively polish due to wear during polishing of the workpiece to be polished is solved.

[0008] The present invention is further configured such that: the adjusting grinding unit includes a first positioning plate and a second connecting plate; the first positioning plate is slidably disposed vertically on the connecting mounting base, and the top end face of the first positioning plate is used to support the bottom end face of the ceramic brush; the second connecting plate is disposed on the top of the first positioning plate, and the top of the second connecting plate is provided with a plurality of mounting holes for mounting the ceramic brush.

[0009] The present invention is further configured such that: the adjusting grinding unit also includes a first fastener; the first fastener has multiple fasteners and is rotatably disposed on the outer side of the first positioning plate, and the outer side of the connecting mounting base is provided with multiple travel grooves for abutting against the end face of the first fastener. The travel grooves are vertically disposed along the sliding direction of the first positioning plate, and the first fastener can be screwed in by means of threads to abut against the outer end face of the connecting mounting base.

[0010] The present invention is further configured such that: the synchronous installation and disassembly unit includes a rotating unit, a first abutting unit and a second abutting unit; the rotating unit is rotatably disposed between the first positioning plate and the second connecting plate; the first abutting unit has multiple units and is respectively disposed on the outside of the rotating unit, and when the rotating unit and the first abutting unit rotate, the end face of the first abutting unit can abut against the outside of the ceramic brush; the second abutting unit has multiple units and is respectively disposed at the bottom of the second connecting plate.

[0011] By adopting the above technical solution, the problem of requiring operators to install and remove each ceramic brush individually when replacing and installing ceramic brushes is solved. On the other hand, it can also be used to fix ceramic brushes smaller than the diameter of the mounting hole, and can be adapted to ceramic brushes of multiple specifications, thus reducing production costs.

[0012] The present invention is further configured such that: a plurality of second abutting units are arranged in a circular array along the outer side of the second connecting disk, and each group of second abutting units is arranged in pairs in the vertical direction, and the plurality of second abutting units are used to abut the outer side of the ceramic brush.

[0013] By adopting the above technical solution, the clamping and fastening effect of ceramic brushes is effectively improved, preventing the problem of shaking and displacement of ceramic brushes with an adaptation diameter smaller than the installation hole diameter after installation.

[0014] The present invention is further configured such that, in the installed state, when the rotating unit rotates, it can drive multiple first abutting units to rotate synchronously, and make the outer side of the ceramic brush abut against the end faces of the first abutting unit and the second abutting unit respectively.

[0015] The present invention is further configured such that: the synchronous installation and disassembly unit further includes a first limiting unit; the first limiting unit has multiple units and is respectively disposed at the bottom of the second positioning plate, and the multiple first limiting units are all located below the second abutting unit, and the positions of the multiple first limiting units correspond to the positions of the second limiting unit, and the spacing between the multiple first limiting units forms a limiting cavity for the rotation unit and the first abutting unit to pass through.

[0016] By adopting the above technical solution, the problem of wear on the contact surfaces during installation, caused by the lack of a guide position, is solved.

[0017] The present invention is further configured such that: the end faces of the plurality of first abutting units are provided with clearance grooves for the passage of second abutting units.

[0018] The present invention is further configured such that: the synchronous installation and disassembly unit also includes a positioning part and a fastening part; the positioning part is located at the bottom of the second connecting plate and has an arc-shaped structure; the end face of the first positioning plate has a through groove for the positioning part to pass through and a positioning cavity for restricting the rotation of the positioning part; the fastening part is rotatably mounted on the positioning part, and the end face of the first positioning plate has an abutment groove for locking the fastening part; the fastening part can be screwed in by means of threads to bring the positioning part into abutment with the end face of the second connecting plate.

[0019] The invention is further configured such that: the bottom end face of the first positioning plate is provided with a clearance groove for the positioning part and the fastening part to rotate after installation and adjustment.

[0020] By adopting the above technical solution, when it is necessary to adjust the positioning part and the fastening part, the clearance groove opened on the bottom end face of the second connecting plate can provide operating space for the rotation of the positioning part and the fastening part, thus avoiding structural interference.

[0021] In summary, this application includes at least one of the following beneficial technical effects: By setting up an adjustable grinding unit, the operator then engages multiple first fasteners through the stroke grooves on the connecting mounting base. After engagement, the second positioning plate, the first positioning plate, and the ceramic brush are installed between the mounting base and the connecting mounting base. The connecting mounting base connects to the tool holder of the grinding machine, allowing the machine to control the deburring depth for each pass based on the wear amount of the ceramic brush during a single pass, and to define the lifespan of the ceramic brush. When the ceramic brush wears to a certain extent, the extension length of the ceramic brush can be adjusted for further processing, thus improving the usability of the ceramic brush. When the ceramic brush is completely worn, only the adjustable ceramic brush needs to be replaced, reducing the cost of the ceramic brush and ultimately effectively reducing labor input, thereby reducing management costs during the processing.

[0022] By setting up a synchronous installation and disassembly unit, when the rotating unit rotates, it drives multiple first abutment units to rotate synchronously until the multiple first abutment units are inserted into the mounting hole and abut against the outer side of the ceramic brush. In this state, the outer side of the ceramic brush can be stably abutted by the end faces of the first abutment units and the second abutment units respectively. This solves the problem that when replacing and installing ceramic brushes, operators still need to install and disassemble each ceramic brush individually. On the other hand, it can also abut and fix ceramic brushes smaller than the diameter of the mounting hole, adapting to ceramic brushes of various specifications and reducing production costs. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of an adjustable ceramic brush according to the present invention. Figure 2 This is a three-dimensional structural diagram of an adjustable ceramic brush under an exploded state according to the present invention. Figure 3 This is a three-dimensional structural diagram of the adjustable polishing unit of an adjustable ceramic brush according to the present invention, under exploded state. Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 for Figure 3 Enlarged structural diagram at point B; Figure 6 for Figure 3 Enlarged structural diagram at point C; Figure 7 This is a top view of the first and second abutting units of an adjustable ceramic brush of the present invention in an adjusted state. Figure 8 This is a top view of the first and second abutting units of an adjustable ceramic brush of the present invention in their reset state. Explanation of reference numerals in the attached drawings: 1. Connecting mounting base; 2. Ceramic brush; 3. Adjusting and polishing unit; 31. First positioning plate; 311. Positioning cavity; 32. Second connecting plate; 33. First fastener; 4. Synchronous installation and disassembly unit; 41. Rotation unit; 42. First abutting unit; 421. Clearance groove; 43. Second abutting unit; 44. First limiting unit; 45. Positioning part; 46. Fastening part. Detailed Implementation

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0026] Please see Figures 1-8 The present invention provides the following technical solutions: Example 1: In order to solve the problem that when the ceramic brush 2 is used to grind the workpiece, the wear and tear of the ceramic brush 2 will make it difficult for the ceramic brush 2 to effectively grind the workpiece.

[0027] The system includes a connecting mounting base 1 mounted on a machine tool holder and a ceramic brush 2 for grinding the workpiece. The adjustable ceramic brush 2 also includes an adjusting grinding unit 3 and a synchronous installation and disassembly unit 4. The adjusting grinding unit 3 is mounted on the connecting mounting base 1 and is used to adjust the contact distance between the ceramic brush 2 and the workpiece to be ground. The synchronous installation and disassembly unit 4 is mounted on the connecting mounting base 1 and is used to quickly install and disassemble multiple ceramic brushes 2.

[0028] The adjustable grinding unit 3 can define the lifespan of the ceramic brush 2. When the ceramic brush 2 is worn to a certain extent, the extension length of the ceramic brush 2 can be adjusted for further processing, thus improving the usability of the ceramic brush 2. When the ceramic brush 2 is completely worn, only the adjustable ceramic brush 2 needs to be replaced, reducing the cost of the ceramic brush 2 and ultimately effectively reducing labor input, thereby reducing the control costs in the processing process.

[0029] See Figure 2 and Figure 3 The adjusting and polishing unit 3 includes a first positioning plate 31 and a second connecting plate 32. The first positioning plate 31 is vertically slidably disposed on the connecting mounting base 1, and the top end face of the first positioning plate 31 is used to support the bottom end face of the ceramic brush 2. The second connecting plate 32 is disposed on the top of the first positioning plate 31, and the top of the second connecting plate 32 is provided with a plurality of mounting holes for mounting the ceramic brush 2.

[0030] In this embodiment, multiple ceramic brushes 2 can slide through the mounting holes on the top of the first positioning plate 31 until they stop sliding when they slide through the mounting holes and come into contact with the top of the second connecting plate 32. After they stop sliding, the initial installation of the ceramic brushes 2 is achieved.

[0031] See Figure 2The adjusting and polishing unit 3 also includes a first fastener 33; the first fastener 33 has multiple fasteners and is rotatably disposed on the outside of the first positioning plate 31, and the outer side of the connecting mounting base 1 is provided with multiple stroke grooves for abutting against the end face of the first fastener 33. The stroke grooves are vertically disposed along the sliding direction of the first positioning plate 31, and the first fastener 33 can be screwed in by means of threads to abut against the outer end face of the connecting mounting base 1.

[0032] After the initial installation, the operator will then use the multiple first fasteners 33 to abut against the travel grooves opened on the connecting mounting base 1. After abutting, the second positioning plate, the first positioning plate 31 and the ceramic brush 2 can be installed between the connecting mounting base.

[0033] In this embodiment, the mounting base 1 is connected to the tool holder of the grinding machine, enabling the grinding machine to control the deburring depth each time based on the wear amount of the ceramic brush 2 in a single processing cycle using a machine tool macro program, and to define the lifespan of the ceramic brush 2. When the ceramic brush 2 wears to a certain extent, the extension length of the ceramic brush 2 can be adjusted for further processing, thus improving the usability of the ceramic brush 2. When the ceramic brush 2 is completely worn, only the adjustable ceramic brush 2 needs to be replaced, reducing the cost of the ceramic brush 2 and ultimately effectively reducing labor input, thereby reducing the management and control costs during the processing.

[0034] Example 2 addresses the problem that in the prior art, replacing the ceramic brush 2 requires first completely disassembling the second positioning plate and the ceramic brush 2, then assembling the new part, and finally installing the whole assembly. The old part also needs to be disassembled separately, resulting in repetitive steps. Furthermore, the fixed diameter of the mounting holes for the ceramic brush 2 makes it difficult to adapt to various workpiece specifications, leading to poor versatility and increased production adaptation costs.

[0035] See Figures 3-5 The synchronous installation and disassembly unit 4 includes a rotating unit 41, a first abutting unit 42, and a second abutting unit 43. The rotating unit 41 is rotatably disposed between the first positioning plate 31 and the second connecting plate 32. The first abutting unit 42 has multiple units and is respectively disposed on the outside of the rotating unit 41. When the rotating unit 41 and the first abutting unit 42 rotate, the end face of the first abutting unit 42 can abut against the outside of the ceramic brush 2. The second abutting unit 43 has multiple units and is respectively disposed on the bottom of the second connecting plate 32.

[0036] See Figure 7 and Figure 8 In this embodiment, the rotating unit 41 is rotatably mounted to the second positioning disk via a bearing. After the ceramic brush 2 is installed with the first positioning disk 31 and the second positioning disk, the operator rotates the rotating unit 41. When the rotating unit 41 rotates, it can drive multiple first abutment units 42 to rotate synchronously.

[0037] Until the multiple first abutting units 42 are inserted into the mounting hole and the outer side of the ceramic brush 2 is abutted, the outer side of the ceramic brush 2 can be stably abutted by the end faces of the first abutting unit 42 and the second abutting unit 43 respectively, improving the abutting and fastening stability of the ceramic brush 2. On the one hand, it solves the problem that when replacing and installing the ceramic brush 2, operators still need to install and remove each ceramic brush 2 individually. On the other hand, it can also abut and fix ceramic brushes 2 smaller than the diameter of the mounting hole, adapting to multiple specifications of ceramic brushes 2 and reducing production costs. In this embodiment, both the first abutting unit 42 and the second abutting unit 43 are preferably made of rubber.

[0038] In Example 3, when installing a ceramic brush 2 with a smaller diameter than the mounting hole, the existing clamping structure is prone to uneven contact force, causing the ceramic brush 2 to shake and shift during the rotational grinding process. This results in a deviation between the contact surface of the ceramic brush 2 and the workpiece to be ground, making it difficult to achieve stable grinding accuracy.

[0039] See Figure 4 Multiple second abutment units 43 are arranged in a circular array along the outer side of the second connecting disk 32, and each group of second abutment units 43 is arranged in pairs in the vertical direction, and multiple second abutment units 43 are used to abut the outer side of the ceramic brush 2.

[0040] To enhance the clamping force of the first abutting unit 42 and the second abutting unit 43 on the ceramic brush 2, in this embodiment, each pair of second abutting units 43 is arranged vertically. When the ceramic brush 2 is abutted by the first abutting unit 42 and the second abutting unit 43, the paired second abutting units 43 form two contact surfaces with the upper and lower left areas of the ceramic brush 2, and the first abutting unit 42 forms one contact surface with the right side area of ​​the ceramic brush 2. These three contact surfaces together constitute a three-sided clamping and positioning structure, effectively improving the clamping and clamping effect on the ceramic brush 2 and preventing the ceramic brush 2 with a diameter smaller than the mounting hole diameter from shaking and shifting after installation.

[0041] See Figure 5 In the installed state, when the rotating unit 41 rotates, it can drive multiple first abutting units 42 to rotate synchronously, and make the outer side of the ceramic brush 2 abut against the end face of the first abutting unit 42 and the second abutting unit 43 respectively.

[0042] During installation, multiple first abutment units 42 can rotate synchronously and bring the ceramic brush 2 into contact with the second abutment unit 43.

[0043] To facilitate the quick installation of the second positioning plate onto the bottom of the first positioning plate 31, and to prevent the first abutting unit 42 on the second positioning plate from contacting each other during installation, thus avoiding end face wear and installation inconvenience.

[0044] See Figure 7 The synchronous installation and disassembly unit 4 also includes a first limiting unit 44; the first limiting unit 44 has multiple units and is respectively disposed at the bottom of the second positioning plate, and the multiple first limiting units 44 are all located below the second abutting unit 43, and the positions of the multiple first limiting units 44 correspond to the positions of the second limiting units, and the spacing between the multiple first limiting units 44 forms a limiting cavity for the rotation unit 41 and the first abutting unit 42 to pass through.

[0045] When the second positioning disk moves below the first positioning disk 31, the operator aligns the second abutment unit 43 with the positions of the multiple first limiting units 44. At this point, the multiple second abutment parts can pass through the limiting cavities between the multiple first limiting units 44 as a reference. Then, the second positioning disk is slid towards the first positioning disk 31, quickly moving it onto the first positioning disk 31. This completes the guiding and positioning installation between the second and first positioning disks 31. After installation, the operator uses fasteners to securely connect the first and second positioning disks. This solves the problem of wear on the contact surfaces during installation due to the lack of a guiding position when installing the second and first positioning disks 31.

[0046] See Figure 5 The end faces of the multiple first abutting units 42 are provided with clearance grooves 421 for the passage of the second abutting units 43.

[0047] After the second positioning plate completes the positioning and guiding docking through the first limiting unit 44, since the end face of the first abutting unit 42 is provided with a clearance groove 421 for the second abutting unit 43 to pass through, the operator does not need to rotate the rotating unit 41 to rotate the first abutting part to a position close to the second abutting part after the installation is completed. This reduces the problem that the operator needs to find the positions of the first abutting unit 42 and the second abutting unit 43 to abut and fix the ceramic brush 2 after the installation of the first positioning plate 31 and the second positioning plate is completed.

[0048] See Figure 3 and Figure 6The synchronous installation and disassembly unit 4 also includes a positioning part 45 and a fastening part 46. The positioning part 45 is located at the bottom of the second connecting plate 32 and has an arc-shaped structure. The end face of the first positioning plate 31 is provided with a through groove for the positioning part 45 to pass through and a positioning cavity 311 for restricting the rotation of the positioning part 45. The fastening part 46 is rotatably mounted on the positioning part 45 and the end face of the first positioning plate 31 is provided with an abutment groove for locking the fastening part 46. The fastening part 46 can be screwed in by means of threads to make the positioning part 45 abut against the end face of the second connecting plate 32.

[0049] When the first positioning plate 31 and the second positioning plate are installed, the positioning part 45 provided on the second connecting plate 32 can be inserted into the first positioning plate 31. At this time, the positioning part 45 can abut against the abutment groove opened on the end face of the first positioning plate 31. After the operator rotates the rotating unit 41 and completes the abutment and fixation of the ceramic brush 2, the fastening part 46 is rotated with a tool. After rotation, the fastening part 46 can fix the rotating unit 41 and the positioning part 45 through the abutment groove.

[0050] See Figure 2 The bottom end face of the first positioning plate 31 is provided with a clearance groove for the positioning part 45 and the fastening part 46 to rotate after installation and adjustment.

[0051] When it is necessary to adjust the positioning part 45 and the fastening part 46, the clearance groove opened on the bottom end face of the first positioning plate 31 can provide operating space for the rotation of the positioning part 45 and the fastening part 46, thus avoiding structural interference.

[0052] Obviously, the embodiments described above are merely some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention.

Claims

1. An adjustable ceramic brush, comprising a connecting mounting base (1) disposed on a machine tool shank and a ceramic brush (2) for grinding a workpiece, characterized in that: The adjustable ceramic brush (2) also includes an adjustable polishing unit (3) and a synchronous installation and removal unit (4). The grinding unit (3) is set on the connecting mounting base (1); The grinding unit (3) is used to adjust the contact distance between the ceramic brush (2) and the workpiece to be ground; The synchronous installation and disassembly unit (4) is set on the connecting mounting base (1); The synchronous installation and removal unit (4) is used to quickly install and remove multiple ceramic brushes (2).

2. The adjustable ceramic brush according to claim 1, characterized in that: The adjustment and polishing unit (3) includes a first positioning plate (31) and a second connecting plate (32); the first positioning plate (31) is vertically slidably mounted on the connecting mounting base (1), and the top end face of the first positioning plate (31) is used to support the bottom end face of the ceramic brush (2); the second connecting plate (32) is located on the top of the first positioning plate (31), and the top of the second connecting plate (32) is provided with multiple mounting holes for mounting the ceramic brush (2).

3. An adjustable ceramic brush according to claim 2, characterized in that: The adjustment and polishing unit (3) also includes a first fastener (33); the first fastener (33) has multiple fasteners and is rotatably disposed on the outside of the first positioning plate (31), and the outer side of the connecting mounting base (1) is provided with multiple stroke grooves for abutting against the end face of the first fastener (33). The stroke grooves are vertically disposed along the sliding direction of the first positioning plate (31), and the first fastener (33) can be screwed in by means of thread to abut against the outer end face of the connecting mounting base (1).

4. An adjustable ceramic brush according to claim 1, characterized in that: The synchronous installation and disassembly unit (4) includes a rotating unit (41), a first abutting unit (42), and a second abutting unit (43); the rotating unit (41) is rotatably disposed between the first positioning plate (31) and the second connecting plate (32); the first abutting unit (42) has multiple units and is disposed on the outside of the rotating unit (41), and when the rotating unit (41) and the first abutting unit (42) rotate, the end face of the first abutting unit (42) can abut against the outside of the ceramic brush (2); the second abutting unit (43) has multiple units and is disposed on the bottom of the second connecting plate (32).

5. An adjustable ceramic brush according to claim 4, characterized in that: Multiple second abutment units (43) are arranged in a circular array along the outer side of the second connecting disk (32), and each set of second abutment units (43) is arranged in pairs in the vertical direction, and multiple second abutment units (43) are used to abut the outer side of the ceramic brush (2).

6. An adjustable ceramic brush according to claim 4, characterized in that: In the installed state, when the rotating unit (41) rotates, it can drive multiple first contact units (42) to rotate synchronously, and make the outer side of the ceramic brush (2) contact the end face of the first contact unit (42) and the second contact unit (43) respectively.

7. An adjustable ceramic brush according to claim 6, characterized in that: The synchronous installation and disassembly unit (4) also includes a first limiting unit (44); the first limiting unit (44) has multiple units and is respectively disposed at the bottom of the second positioning plate, and the multiple first limiting units (44) are all located below the second abutting unit (43), and the positions of the multiple first limiting units (44) correspond to the positions of the second limiting unit, and the spacing between the multiple first limiting units (44) forms a limiting cavity for the rotation unit (41) and the first abutting unit (42) to pass through.

8. An adjustable ceramic brush according to claim 6, characterized in that: Multiple first abutment units (42) have clearance grooves (421) on their end faces for the passage of second abutment units (43).

9. An adjustable ceramic brush according to claim 6, characterized in that: The synchronous installation and disassembly unit (4) also includes a positioning part (45) and a fastening part (46); the positioning part (45) is located at the bottom of the second connecting plate (32), and the positioning part (45) has an arc-shaped structure. The end face of the first positioning plate (31) is provided with a through groove for the positioning part (45) to pass through and a positioning cavity (311) for restricting the rotation of the positioning part (45); the fastening part (46) is rotatably mounted on the positioning part (45), and the end face of the first positioning plate (31) is provided with an abutment groove for locking the fastening part (46). The fastening part (46) can be screwed in by means of threads to make the positioning part (45) and the end face of the second connecting plate (32) abut against each other.

10. An adjustable ceramic brush according to claim 9, characterized in that: The bottom end face of the first positioning plate (31) is provided with a clearance groove for the positioning part (45) and the fastening part (46) to rotate after installation and adjustment.

Images