Polishing device for diamond abrasive disc
By designing a grinding body composed of grinding blades with adjustable grinding area, the problem of frequent grinding wheel replacement during diamond grinding is solved, improving work efficiency and reducing costs, while also achieving effective chip removal.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-01
- Publication Date
- 2026-04-10
AI Technical Summary
In the existing technology, the grinding process of diamond grinding discs requires frequent replacement of grinding wheels of different sizes, resulting in low work efficiency and high cost, especially the problem that large-size grinding wheels are expensive and small-size grinding wheels wear out quickly.
Design a grinding device for diamond grinding discs, which uses a grinding body composed of grinding blades with adjustable grinding area. The size of the grinding area can be adjusted by a control mechanism to adapt to diamond grinding discs of different sizes without the need to change grinding blades.
It enables grinding with diamond grinding discs of different sizes without changing the grinding tool, improving work efficiency and reducing costs, and effectively removing grinding debris and dust through a suction mechanism.
Smart Images
Figure CN224102735U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to diamond grinding disc processing technical field, specifically, relate to a kind of grinding device for diamond grinding disc. BACKGROUND
[0002] In prior art, sometimes abrasive particles on the surface of diamond grinding disc are polished by handheld grinding machine, and the grinding wheel of handheld grinding machine is in contact with the surface of diamond grinding disc under high-speed rotation or reciprocating motion, and through the cutting, scraping and other effects of abrasive particles on diamond grinding disc, the excess material on the surface of grinding disc is removed, so that the grinding disc reaches the required size accuracy and surface flatness.
[0003] When processing diamond grinding disc, the size of diamond grinding disc is not the same. When polishing large-size diamond grinding disc with small-size grinding wheel, the contact area of small-size grinding wheel with large-size diamond grinding disc is relatively small, and the pressure on the grinding wheel is relatively concentrated during polishing, which can accelerate the wear of small-size grinding wheel. Therefore, factories generally equip different sizes of polishing grinding wheels. However, the following problems still exist in actual work: frequent replacement of different sizes of grinding wheels during processing, frequent power-on and other problems can reduce work efficiency; large-size polishing wheels are expensive, small-size polishing wheels are cheap, and the cost will increase when preparing multiple different sizes of polishing wheels. SUMMARY
[0004] The utility model aims at overcoming the defects of prior art, and provides a kind of grinding device for diamond grinding disc.
[0005] The utility model aims at overcoming the defects of prior art, and provides a kind of grinding device for diamond grinding disc.
[0006] A kind of grinding device for diamond grinding disc, including shell and the gripping handle being arranged on above-mentioned shell, above-mentioned shell is also rotationally arranged with protective cover;Driving mechanism for driving above-mentioned protective cover rotation is arranged in above-mentioned shell;The end of above-mentioned protective cover away from above-mentioned shell is provided with the bottom disc of cylindrical structure, the side wall circumferential array of above-mentioned bottom disc away from above-mentioned protective cover is provided with several polishing knives, and the array center line of several above-mentioned polishing knives is collinear with the central axis of above-mentioned bottom disc;The leading end of any above-mentioned polishing knife is rotationally connected with above-mentioned bottom disc, and this connection is located at the edge of above-mentioned bottom disc, and the tail end of any above-mentioned polishing knife is close to the center of above-mentioned bottom disc;Control mechanism for controlling the synchronous rotation of several above-mentioned polishing knives is further arranged in above-mentioned shell, to adjust the area of polishing area of this device.
[0007] Further, in the utility model, arc-shaped guide groove is formed on any above-mentioned polishing knife, and the center of above-mentioned arc-shaped guide groove is collinear with the center of above-mentioned polishing knife;Above-mentioned control mechanism is in transmission connection with above-mentioned arc-shaped guide groove.
[0008] Further, in the utility model, the plurality of straight through grooves are in one-to-one correspondence with the plurality of polishing knives, and the extension direction of any straight through groove is along the radial direction of the bottom disc.
[0009] Further, in the utility model, the control mechanism comprises an electric push rod arranged in the shell, a moving disc arranged at the execution end of the electric push rod, and a plurality of connecting rods and a plurality of sliding blocks which are distributed in a circumferential array about the central axis of the bottom disc, the extension direction of the electric push rod is parallel to the central axis of the bottom disc; the plurality of connecting rods and the plurality of sliding blocks are in one-to-one correspondence with the plurality of straight through grooves; any sliding block is slidably connected with the bottom disc, and the sliding direction of the sliding block is along the radial direction of the bottom disc; one end of any connecting rod is hingedly connected with the moving disc, and the other end is hingedly connected with the corresponding sliding block; a push rod is arranged on any sliding block, and the push rod is slidably connected with the corresponding arc-shaped guide groove after penetrating through the corresponding straight through groove.
[0010] Further, in the utility model, the shell is further provided with a suction mechanism which is used for sucking the debris and dust generated in the polishing process.
[0011] Further, in the utility model, the suction mechanism comprises a sleeve and a suction pipe which are both arranged in the shell, the sleeve is rotatably connected with the shell; the central axis of the sleeve is collinear with the central axis of the bottom disc, a through hole is formed in the middle of the bottom disc, and one end of the sleeve away from the suction pipe is in communication with the through hole; the driving mechanism is used for driving the sleeve to rotate.
[0012] Further, in the utility model, the driving mechanism comprises a motor arranged on the shell, a first bevel gear arranged on the output shaft of the motor and a second bevel gear arranged on the sleeve, and the second bevel gear is engaged with the first bevel gear.
[0013] Further, in the utility model, the side wall of the bottom disc away from the polishing knives is circumferentially provided with a plurality of limiting rings, the array center lines of the plurality of limiting rings are collinear with the central axis of the bottom disc, and the plurality of sliding blocks are slidably connected with the plurality of limiting rings respectively.
[0014] The utility model has the advantages of:
[0015] The utility model provides a kind of polishing device for diamond abrasive disc, when it needs to make this polishing device polish different sizes of diamond abrasive disc in certain size range, without replacing polishing knife group, just by operating control mechanism to make each polishing knife rotate, the polishing area of the polishing body formed by each polishing knife can be adjusted to adapt to different sizes of diamond abrasive disc in certain size range. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;
[0017] Figure 2 This is a schematic diagram of the installation structure of the grinding blade according to an embodiment of the present utility model;
[0018] Figure 3 for Figure 1 A sectional view;
[0019] Figure 4 This is a partial exploded view of an embodiment of the present utility model;
[0020] Figure 5 This is a structural schematic diagram illustrating the switching of several grinding blade positions according to an embodiment of the present invention.
[0021] In the diagram: 1-Housing; 2-Handle; 3-Protective cover; 4-Drive mechanism; 401-Motor; 402-First bevel gear; 403-Second bevel gear; 5-Chassis; 6-Grinding blade; 7-Control mechanism; 701-Electric actuator; 702-Moving disc; 703-Connecting rod; 704-Slider; 705-Push rod; 706-Limiting ring; 8-Arc-shaped guide groove; 9-Straight through groove; 10-Suction mechanism; 1001-Sleeve; 1002-Suction tube; 11-Shaded area. Detailed Implementation
[0022] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0023] Please see Figures 1-5 This utility model provides a technical solution:
[0024] The utility model provides a kind of grinding device for diamond abrasive disc, including shell 1 and install the holding handle 2 on shell 1, shell 1 also is equipped with protective cover 3, shell 1 is L-shaped structure in the embodiment, and the top of protective cover 3 is rotatably connected with shell 1. Driving mechanism 4 for driving protective cover 3 rotation is installed in shell 1. Protective cover 3's bottom end is equipped with a bottom disc 5 of cylindrical structure, and the bottom wall circumferential array of bottom disc 5 is equipped with eight polishing knives 6, which are all arc structure, and the array center line of eight polishing knives 6 is collinear with the central axis of bottom disc 5. The leading end of any polishing knife 6 is rotatably connected with bottom disc 5, and the connecting place is located at the edge of bottom disc 5, and the tail end of any polishing knife 6 is close to the center of bottom disc 5. Control mechanism 7 for controlling eight polishing knives 6 synchronous rotation is also installed in shell 1, to adjust the area of polishing area of the device.
[0025] Specifically, referring to Figure 4 In the embodiment, arc-shaped guide slot 8 is formed on any polishing knife 6, and the center of arc-shaped guide slot 8 is collinear with the center of polishing knife 6. At the same time, eight straight through slots 9 are circumferentially formed on bottom disc 5, and the eight straight through slots 9 correspond to the eight polishing knives 6 one by one, and the extension direction of any straight through slot 9 is along the radial direction of bottom disc 5.
[0026] Specifically, referring to Figure 3 And 4 In the embodiment, control mechanism 7 includes two electric push rods 701 installed in shell 1, moving disc 702 installed at the execution end of two electric push rods 701, eight connecting rods 703 and eight sliding blocks 704 circumferentially distributed about the central axis of bottom disc 5, two electric push rods 701 are symmetrically distributed about the central axis of bottom disc 5, and the extension direction of two electric push rods 701 is parallel to the central axis of bottom disc 5. Eight connecting rods 703 and eight sliding blocks 704 correspond to eight straight through slots 9 one by one. Any sliding block 704 is slidably connected with bottom disc 5, and the sliding direction thereof is along the radial direction of bottom disc 5. One end of any connecting rod 703 is hinged to moving disc 702, and the other end is hinged to the corresponding sliding block 704; a push rod 705 is installed on any sliding block 704, and any push rod 705 is slidably connected with the corresponding arc-shaped guide slot 8 after passing through the corresponding straight through slot 9. At the same time, in order to realize the sliding connection between sliding block 704 and bottom disc 5, eight limiting rings 706 are circumferentially installed on the top wall of bottom disc 5 away from the center, and the array center line of eight limiting rings 706 is collinear with the central axis of bottom disc 5, and eight sliding blocks 704 are slidably connected with eight limiting rings 706 respectively.
[0027] As Figure 5As shown, the shadow area 11 is the polishing area of the diamond grinding disc that can be polished by the polishing device when the polishing knives 6 are at different positions. When it is necessary to expand or reduce the area of the shadow area 11, the two electric push rods 701 are controlled to be elongated or shortened, and each slider 704 can move in the limiting ring 706 under the pushing or pulling of each connecting rod 703, so as to drive each push rod 705 to move in each arc-shaped guide slot 8, so that each polishing knife 6 rotates, thereby achieving the purpose of adjusting the area of the shadow area 11. The adjustable area of the shadow area 11 is equivalent to that the polishing body composed of the eight polishing knives 6 of the device can be transformed into a "grinding wheel" of different sizes to adapt to diamond grinding discs of different sizes within a certain size range.
[0028] In order to facilitate the suction of dust and debris generated in the polishing process, a suction mechanism 10 is also installed in the housing 1 in the embodiment. Specifically, referring to Figure 3 , the suction mechanism 10 in the embodiment includes a sleeve 1001 and a suction pipe 1002, both of which are installed in the housing 1. The sleeve 1001 is rotationally connected with the housing 1, and the central axis of the sleeve 1001 is collinear with the central axis of the base plate 5. A through hole is formed in the middle of the base plate 5, and the end of the sleeve 1001 away from the suction pipe 1002 is in communication with the through hole. The above-mentioned driving mechanism 4 is used to drive the sleeve 1001 to rotate, and the sleeve 1001 rotates to drive the base plate 5 and the protective cover 3 to rotate synchronously, so as to drive the eight polishing knives 6 on the base plate 5 to rotate. The suction pipe 1002 can be in communication with a matching negative pressure pump, and the negative pressure pump is started during polishing, so that the sleeve 1001 and the suction pipe 1002 are both in a negative pressure state.
[0029] In the embodiment, each polishing knife 6 is arc-shaped, and the eight polishing knives 6 are arranged in a circle. During polishing, the polishing knives 6 are arc-shaped, and when the base plate 5 drives the polishing knives 6 to rotate in a circle, the residues are constrained and guided by the arc surface during contact with the arc surface. The shape of the arc surface makes the residues have a central component of velocity along the tangent direction of the arc surface, thereby promoting the residues to move to the central position. The plurality of polishing knives 6 are arranged in a circle, and the space between adjacent polishing knives 6 forms a relatively closed area during rotation. The residues are more easily guided to the central position in this area under the joint action of the arc surfaces of the polishing knives 6, rather than being thrown outward. Although there is a centrifugal force in the circular motion, which tends to make the object move outward, the residues are also subjected to frictional force on the surface of the polishing knives 6 and interaction force between the residues. The combined effect of these forces will make the resultant force on the residues not completely point to the outside (the outside of the base plate 5), but under the action of the arc surface, have a tendency to gather to the center. When the component of the frictional force and other forces in the central direction is greater than the centrifugal force, the residues will gather to the center. Therefore, the structure design and installation method of the polishing knives 6 in the embodiment make part of the debris generated in the polishing process move to the center of the base plate 5, so as to be sucked away by the suction pipe 1002.
[0030] Preferably, referring to Figure 3 In this embodiment, the driving mechanism 4 comprises a motor 401 mounted on the housing 1, a first bevel gear 402 mounted on the output shaft of the motor 401, and a second bevel gear 403 mounted on the sleeve 1001, the second bevel gear 403 being engaged with the first bevel gear 402. Thus, when the motor 401 is started, the sleeve 1001 can be driven to rotate by the bevel gear mechanism.
[0031] It should be noted that the device is mainly used for secondary polishing (i.e. finishing) of the diamond abrasive disc, rather than the first polishing. Because the diamond abrasive disc may not meet the requirement of surface roughness during rough polishing. When the device is used to polish the diamond abrasive disc after rough polishing, the polishing surface of the device is gently contacted with the area to be polished of the diamond abrasive disc, so as to complete the secondary polishing and polishing.
[0032] The above description is only the preferred embodiment of the present application, and it should be understood that the present application is not limited to the form disclosed herein, and should not be considered as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein by the above teachings or related art or knowledge. Any modification and change made by those skilled in the art without departing from the spirit and scope of the present application shall be within the protection scope of the appended claims of the present application.
Claims
1. A grinding device for diamond grinding disc, comprising a housing (1) and a holding handle (2) arranged on the housing (1), a protective cover (3) is rotatably arranged on the housing (1); characterized in that: The shell (1) is provided with a driving mechanism (4) for driving the protective cover (3) to rotate; the end of the protective cover (3) away from the shell (1) is provided with a chassis (5) in a cylindrical structure, the side wall of the chassis (5) away from the protective cover (3) is provided with a plurality of polishing knives (6) in an arc structure in a circumferential array, the array center line of the plurality of polishing knives (6) is collinear with the central axis of the chassis (5); the leading end of any polishing knife (6) is rotatably connected with the chassis (5), and the connection is located at the edge of the chassis (5); the trailing end of any polishing knife (6) is close to the center of the chassis (5); the shell (1) is further provided with a control mechanism (7) for controlling the synchronous rotation of the plurality of polishing knives (6), so as to adjust the area of the polishing area of the device.
2. The apparatus for polishing a diamond abrasive sheet according to claim 1, wherein: An arc-shaped guide groove (8) is formed on any polishing knife (6), and the center of the arc-shaped guide groove (8) is collinear with the center of the polishing knife (6); the control mechanism (7) is in transmission connection with the arc-shaped guide groove (8).
3. A dressing device for a diamond abrasive sheet according to claim 2, wherein: A plurality of straight through grooves (9) are circumferentially arranged on the chassis (5), the plurality of straight through grooves (9) correspond to the plurality of polishing knives (6) one by one, and the extension direction of any straight through groove (9) is along the radial direction of the chassis (5).
4. The apparatus of claim 3, wherein: The control mechanism (7) comprises an electric push rod (701) arranged in the shell (1), a moving disc (702) arranged at the execution end of the electric push rod (701), a plurality of connecting rods (703) and a plurality of sliding blocks (704) which are circumferentially arranged about the central axis of the chassis (5), the extension direction of the electric push rod (701) is parallel to the central axis of the chassis (5); the plurality of connecting rods (703) and the plurality of sliding blocks (704) correspond to the plurality of straight through grooves (9) one by one; any sliding block (704) is in sliding connection with the chassis (5), and the sliding direction thereof is along the radial direction of the chassis (5); one end of any connecting rod (703) is hingedly connected with the moving disc (702), and the other end thereof is hingedly connected with the corresponding sliding block (704); a push rod (705) is arranged on any sliding block (704), and any push rod (705) is in sliding connection with the corresponding arc-shaped guide groove (8) after penetrating through the corresponding straight through groove (9).
5. A dressing device for diamond abrasive discs according to any one of claims 1 to 4, characterized in that: The shell (1) is further provided with a suction mechanism (10) for sucking out the debris and dust generated in the polishing process.
6. A dressing device for a diamond abrasive sheet as defined in claim 5, wherein: The suction mechanism (10) comprises a sleeve (1001) and a suction pipe (1002) both arranged in the shell (1), the sleeve (1001) is rotatably connected with the shell (1); the central axis of the sleeve (1001) is collinear with the central axis of the chassis (5), a through hole is formed in the middle part of the chassis (5), one end of the sleeve (1001) away from the suction pipe (1002) is in communication with the through hole; the driving mechanism (4) is used for driving the sleeve (1001) to rotate.
7. A dressing device for a diamond abrasive sheet as defined in claim 6, wherein: The driving mechanism (4) comprises a motor (401) arranged on the shell (1), a first bevel gear (402) arranged on an output shaft of the motor (401), and a second bevel gear (403) arranged on the sleeve (1001), the second bevel gear (403) being engaged with the first bevel gear (402).
8. The apparatus for polishing a diamond abrasive sheet according to claim 4, wherein: The bottom disc (5) is provided with a plurality of limiting rings (706) arranged in a circumferential array away from the side wall of the polishing knife (6), the array center lines of the plurality of limiting rings (706) are collinear with the central axis of the bottom disc (5), and the plurality of sliding blocks (704) are respectively connected with the plurality of limiting rings (706) in a sliding mode.