Grinding disc finishing mechanism

Abstract

The utility model provides a grinding disc trimming mechanism, which relates to the field of grinding machines, and comprises a support plate connected to a grinding machine frame and positioned between two grinding discs, and the support plate is provided with an avoiding through hole for the grinding discs to pass through; the upper end of the supporting plate is connected with a fixing base capable of sliding in the vertical direction and a driving assembly used for driving the fixing base to move up and down, and the fixing base is connected with grinding wheels located on the two sides of the supporting plate and used for finishing the two grinding discs correspondingly. According to the grinding disc finishing mechanism, the grinding surface of the grinding disc can be finished without disassembling the grinding disc, the structure is simple, and the finishing efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding machine auxiliary mechanisms, in particular to a grinding disc dressing mechanism. Background Art

[0002] The through-type double-end grinder is a highly efficient plane processing machine tool. It can grind two parallel end faces at the same time in one processing process. The high-precision parallelism and the flatness of the grinding disc are important precision indicators of the machine tool. The machine tool using the high-flatness grinding disc can produce parts with higher precision. The flatness of the grinding disc can directly affect the precision of the machine tool processing. After the grinding disc is used for a period of time, the flatness of its grinding surface will change. If it is not regularly trimmed, it will directly affect the qualified rate of the final product after grinding.

[0003] In the prior art, after being used for a period of time, the grinding disc is disassembled, its grinding surface is trimmed with a special grinding wheel, and then it is reassembled into the grinding machine. This trimming method is not only time-consuming and labor-intensive, but also has low trimming efficiency. In addition, repeated disassembly and assembly of the grinding disc will cause changes in the installation position of the grinding disc, thereby bringing new problems. Utility Model Content

[0004] In order to overcome at least one of the defects in the above prior art, the utility model provides a grinding disc dressing mechanism, which can dress the grinding surface of the grinding disc without disassembling the grinding disc, has a simple structure and high dressing efficiency.

[0005] The utility model provides a grinding disc dressing mechanism, comprising a support plate connected to a grinding machine frame and located between two grinding discs, wherein the support plate is provided with an avoidance through hole for the grinding disc to pass through; the upper end of the support plate is connected to a vertically slidable fixed seat and a driving component for driving the fixed seat to move up and down, and the fixed seat is connected to grinding wheels located on both sides of the support plate and respectively used for dressing the two grinding discs.

[0006] Compared with the prior art, the grinding disc dressing mechanism of the utility model has the following advantages:

[0007] Compared with the prior art which requires the grinding disc to be disassembled and cut into pieces for dressing, in this embodiment a support plate is arranged on the grinding machine frame, and a lifting and lowering fixed seat and a driving assembly for driving the lifting and lowering of the fixed seat are arranged on the support plate, and the lower end of the fixed seat is connected with a grinding wheel for dressing the two grinding discs of the grinding machine respectively; when the grinding disc needs to be dressed, the grinding disc stops moving, and the two grinding discs are separated from each other to a set position, and then the driving assembly drives the fixed seat to move slowly downward, and in the process of the fixed seat moving downward, the drives of the two grinding discs are turned on again, so that the grinding surfaces of the two grinding discs are flattened by the two grinding wheels, and the entire dressing process does not require disassembly and assembly of the grinding discs, the operation is convenient, and the dressing efficiency is high.

[0008] As an improvement, the driving assembly includes a vertically arranged rack, a gear and a motor, the rack extending vertically is connected to the side wall of the fixing base, the gear is rotatably connected to the support plate and meshes with the rack, and the motor is connected to the support plate to drive the gear to rotate. In the above improved structure, the lifting drive of the fixing base is realized by the gear rack structure, the structure is simple, and the driving is stable.

[0009] Further improved, the fixed seat includes two connecting plates that are slidably fitted on both sides of the support plate, and a rack is provided on one side of one of the connecting plates; the two connecting plates are connected as a whole to achieve synchronous lifting, and the lower ends of the two connecting plates are connected to grinding wheels.

[0010] In a further improvement, the top ends of the two connecting plates are connected and fixed by a first connecting shaft, and the bottom ends of the two connecting plates are connected and fixed by a second connecting shaft; the support plate is provided with an avoidance groove extending vertically and connected to the avoidance through hole, and the second connecting shaft can be movably engaged in the avoidance groove. In the above improved structure, the two connecting plates are connected by two upper and lower connecting shafts to ensure the synchronous lifting and lowering of the two connecting plates; the avoidance groove provides the second connecting shaft with a movable space to avoid interference.

[0011] In a further improvement, both sides of the support plate are connected with positioning blocks, and the inner sides of the two positioning blocks are respectively provided with positioning slots, and the two connecting plates are respectively slidably fitted in the two positioning slots. In the above improved structure, by providing positioning slots on the positioning blocks, the guiding and limiting of the up and down movement of the two connecting plates is achieved, thereby ensuring the stability of the lifting and lowering thereof.

[0012] In a further improvement, the tops of the two positioning blocks are respectively connected with a first sensor and a second sensor, the two connecting plates are denoted as a first connecting plate and a second connecting plate, the lower end of the first connecting plate is provided with a first sensing part, the top of the second connecting plate is provided with a second sensing part, the first sensor and the second sensor are used to respectively detect the signals of the first sensing part and the second sensing part to achieve the two limit positions of the up and down movement of the connecting plate. In the above improved structure, the limit position of the lifting and lowering of the connecting plate is limited by the provision of two sensors and two sensing parts, that is, it is used to accurately limit the dressing range of the grinding wheel and the grinding disc.

[0013] In a further improvement, the gear comprises a first gear and a second gear arranged in parallel in a horizontal direction, the first gear meshes between the second gear and the rack, the motor is horizontally arranged on a side of the support plate away from the gear, and the output shaft of the motor passes through the support plate and is connected to the middle of the second gear. In the above improved structure, in view of the limitation of the installation space, two horizontally parallel gears are arranged for driving, so that the motor and the positioning block can be staggered in the horizontal direction without affecting the normal installation of the motor.

[0014] In a further improvement, a rack pad is provided on one side of the support plate located on the gear, so as to leave a gap between the rack and the support plate. In the above improved structure, the rack pad is used to raise the rack, so that a gap is left between the rack and the support plate, which facilitates its meshing with the gear.

[0015] In a further improvement, the support plate is provided with a gear cover covering the outside of the first gear and the second gear. In the above improved structure, the gear cover can prevent grinding particles from entering the gear matching clearance after being provided, thereby ensuring normal meshing of the gears.

[0016] In a further improvement, the top of the support plate is connected to a rack guard with an opening at the bottom, and the upper ends of the two connecting plates are movably accommodated in the rack guard. In the above improved structure, the rack guard is used to protect the rack and the connecting plate, and prevent grinding particles from entering the clearance between the rack and the gear, and the clearance between the connecting plate and the positioning slot, thereby affecting the flexibility of the connecting plate in lifting and lowering.

[0017] Other improved features and advantages of the utility model will be described in the subsequent specific embodiments, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be achieved and obtained through the structures specifically pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the grinding disc dressing mechanism of the utility model applied to a grinding machine;

[0019] Figure 2 It is a three-dimensional diagram of the grinding disc dressing mechanism in the utility model;

[0020] Figure 3 for Figure 2 The front view of the middle grinding disc dressing mechanism;

[0021] Figure 4 for Figure 3 AA section view in the figure;

[0022] Figure 5 for Figure 3 BB section view in.

[0023] Description of reference numerals:

[0024] 1. Grinding disc; 2. Support plate; 3. Avoidance hole; 4. Grinding wheel; 5. Rack; 6. Gear; 6.1. First gear; 6.2. Second gear; 7. Motor; 8. Connecting plate; 8.1. First connecting plate; 8.2. Second connecting plate; 9. First connecting shaft; 10. Second connecting shaft; 11. Avoidance groove; 12. Positioning block; 13. Positioning slide; 14. First sensor; 15. Second sensor; 16. First sensing part; 17. Second sensing part; 18. Rack pad; 19. Gear cover; 20. Rack protective cover; 21. Feed limit plate. DETAILED DESCRIPTION

[0025] First, those skilled in the art should understand that these implementations are only used to explain the technical principles of the embodiments of the present application, and are not intended to limit the protection scope of the embodiments of the present application. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.

[0026] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "fixed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0027] The present application is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] See also Figures 1 to 5 As shown, an embodiment of the present application discloses a grinding disc dressing mechanism, which includes a vertically arranged support plate 2, which is connected to the grinding machine frame and is located between two grinding discs 1, and an avoidance through hole 3 for the grinding disc 1 to pass through is opened on the support plate 2; in addition, two horizontally arranged feed limit plates 21 that are vertically spaced a certain distance apart are connected to one side of the support plate 2, and a workpiece movement channel is formed between the two feed limit plates 21. When the workpiece moves along the workpiece movement channel, the grinding discs 1 on both sides of the support plate 2 approach each other, and one of the grinding discs 1 needs to pass through the avoidance through hole 3 to achieve grinding processing on both sides of the workpiece.

[0029] In addition, the upper end of the support plate 2 is connected to a fixed seat that can slide vertically and a driving assembly for driving the fixed seat to move up and down. The fixed seat is connected to grinding wheels 4 located on both sides of the support plate 2 and used to trim the two grinding discs 1. When the grinding disc 1 needs to be trimmed, the grinding disc 1 stops moving, and the two grinding discs 1 are separated from each other to a set position, and then the driving assembly drives the fixed seat to move slowly downward. During the downward movement of the fixed seat, the drivers of the two grinding discs 1 are turned on again, so that the grinding surfaces of the two grinding discs 1 are trimmed for flatness through the two grinding wheels 4.

[0030] For details, see the attached Figures 2 to 5 In this embodiment, the driving assembly includes a vertically arranged rack 5, a gear 6 and a motor 7. The rack 5 is connected to the side wall of the fixed seat along the vertical extension. The gear 6 is rotatably connected to the support plate 2 and meshes with the rack 5. The motor 7 is connected to the support plate 2 to drive the gear 6 to rotate. The gear 6 is driven to rotate by the motor 7, thereby driving the rack 5 to drive the fixed seat to move up and down, and finally realizing the lifting and lowering of the two grinding wheels 4. The structure is simple, and the driving is convenient and stable.

[0031] See the attached Figure 2 Preferably, the fixed seat includes two connecting plates 8 that are slidably fitted on both sides of the support plate 2 in the thickness direction, and a rack 5 is provided on one side of one of the connecting plates 8; the two connecting plates 8 are connected as a whole to achieve synchronous lifting, and the lower ends of the two connecting plates 8 are connected to a grinding wheel 4.

[0032] See attached Figure 4 , the two connecting plates 8 are connected as one body 2, the top ends of the two connecting plates 8 are connected and fixed by a first connecting shaft 9, and the bottom ends of the two connecting plates 8 are connected and fixed by a second connecting shaft 10; and, a vertically extending avoidance groove 11 connected to the avoidance through hole 3 is provided on the support plate 2, and the second connecting shaft 10 can be movably fitted in the avoidance groove 11 up and down to avoid interference between the second connecting shaft 10 and the support plate 2 during the lifting and lowering of the fixed seat.

[0033] See attached Figure 2 In this embodiment, positioning blocks 12 are connected to both sides of the support plate 2, and positioning grooves 13 are respectively opened on the inner sides of the two positioning blocks 12, and the two connecting plates 8 are respectively slidably fitted in the two positioning grooves 13; the positioning grooves 13 are used to guide and limit the up and down movement of the two connecting plates 8 to ensure the stability of their lifting and lowering.

[0034] For more details, see the attached Figure 2 and 4A first sensor 14 and a second sensor 15 are respectively connected to the top of the two positioning blocks 12, and the two connecting plates 8 are denoted as the first connecting plate 8.1 and the second connecting plate 8.2, and the first sensor 14 and the second sensor 15 correspond to the first connecting plate 8.1 and the second connecting plate 8.2 respectively; in addition, a first sensing part 16 is arranged at the lower end of the first connecting plate 8.1, and a second sensing part 17 is arranged at the top of the second connecting plate 8.2. The first sensor 14 and the second sensor 15 are used to respectively detect the signals of the first sensing part 16 and the second sensing part 17 to realize the two extreme position limits of the up and down movement of the connecting plate 8.

[0035] See attached Figure 2 and 5 In order to consider the installation space, the gear 6 in this embodiment includes a first gear 6.1 and a second gear 6.2 arranged in parallel in the horizontal direction, the first gear 6.1 meshes between the second gear 6.2 and the rack 5, the motor 7 is horizontally arranged on the side of the support plate 2 away from the gear 6, and the output shaft of the motor 7 passes through the support plate 2 and is connected to the middle of the second gear 6.2. Furthermore, a rack pad 18 is provided on one side of the support plate 2 on the gear 6, and the rack pad 18 is used to raise it, so that a gap is left between the rack 5 and the support plate 2, so that it is convenient for it to mesh with the gear 6.

[0036] In addition, in order to prevent grinding particles from entering the gear 6 structure and the sliding fit of the connecting plate 8 during the grinding process, thereby affecting the normal meshing between the gears 6, or the normal meshing between the gear 6 and the rack 5, or the normal lifting and lowering of the connecting plate 8, a gear cover 19 covering the outside of the first gear 6.1 and the second gear 6.2 is provided on the support plate 2. Similarly, a rack guard 20 with an opening at the bottom is connected to the top of the support plate 2, and the upper ends of the two connecting plates 8 are movably accommodated in the rack guard 20, see the attached Figure 1 .

[0037] In addition, see Appendix Figure 2 and 4 The grinding wheel 4 in this embodiment is a sand block with a rectangular structure. A rectangular groove for accommodating the sand block is provided at the lower ends of the two connecting plates 8, and a notch is provided on one side of the connecting plate 8. A fastening screw is provided at the bottom of the connecting plate 8. The fastening screw passes vertically through the notch. By tightening the screw, the gap of the notch can be reduced, so that the rectangular block holds the sand block tightly.

[0038] In the description of the present application, the description with reference to the term "present embodiment" or "some embodiments" means that the specific features, mechanisms, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, mechanisms, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0039] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A grinding disc dressing mechanism, characterized in that: The invention comprises a support plate (2) connected to a grinding machine frame and located between two grinding discs (1), the support plate (2) being provided with an avoidance through hole (3) for the grinding discs (1) to pass through; the upper end of the support plate (2) is connected to a fixing seat which can slide vertically and a driving component for driving the fixing seat to move up and down, the fixing seat being connected to grinding wheels (4) located on both sides of the support plate (2) and respectively used for dressing the two grinding discs (1).

2. The grinding disc dressing mechanism according to claim 1, characterized in that: The driving assembly comprises a vertically arranged rack (5), a gear (6) and a motor (7); the rack (5) is vertically extended and connected to the side wall of the fixing seat; the gear (6) is rotatably connected to the support plate (2) and meshes with the rack (5); and the motor (7) is connected to the support plate (2) to drive the gear (6) to rotate.

3. The grinding disc dressing mechanism according to claim 2, characterized in that: The fixing seat comprises two connecting plates (8) which are respectively slidably matched on both sides of the supporting plate (2), and a rack (5) is arranged on one side of one of the connecting plates (8); the two connecting plates (8) are connected as a whole to achieve synchronous lifting, and the lower ends of the two connecting plates (8) are connected to grinding wheels (4).

4. The grinding disc dressing mechanism according to claim 3, characterized in that: The top ends of the two connecting plates (8) are connected and fixed via a first connecting shaft (9), and the bottom ends of the two connecting plates (8) are connected and fixed via a second connecting shaft (10); a vertically extending avoidance groove (11) connected to the avoidance through hole (3) is provided on the support plate (2), and the second connecting shaft (10) can be movably engaged in the avoidance groove (11) up and down.

5. The grinding disc dressing mechanism according to claim 3 or 4, characterized in that: Positioning blocks (12) are connected to both sides of the support plate (2), and positioning grooves (13) are respectively provided on the inner sides of the two positioning blocks (12), and the two connecting plates (8) are respectively slidably fitted in the two positioning grooves (13).

6. The grinding disc dressing mechanism according to claim 5, characterized in that: The tops of the two positioning blocks (12) are respectively connected to a first sensor (14) and a second sensor (15); the two connecting plates (8) are denoted as a first connecting plate (8.1) and a second connecting plate (8.2); a first sensing portion (16) is provided at the lower end of the first connecting plate (8.1); a second sensing portion (17) is provided at the top of the second connecting plate (8.2); the first sensor (14) and the second sensor (15) are used to respectively detect signals of the first sensing portion (16) and the second sensing portion (17) to achieve two extreme position limits of the upward and downward movement of the connecting plate (8).

7. The grinding disc dressing mechanism according to claim 3, characterized in that: The gear (6) comprises a first gear (6.1) and a second gear (6.2) which are arranged in parallel in a horizontal direction, the first gear (6.1) is meshed between the second gear (6.2) and the rack (5), the motor (7) is arranged horizontally on a side of the support plate (2) away from the gear (6), and the output shaft of the motor (7) passes through the support plate (2) and is connected to the middle of the second gear (6.2).

8. The grinding disc dressing mechanism according to claim 7, characterized in that: A rack pad (18) is also provided on the support plate (2) on one side of the gear (6) to leave a gap between the rack (5) and the support plate (2).

9. The grinding disc dressing mechanism according to claim 7, characterized in that: The support plate (2) is provided with a gear cover (19) covering the outside of the first gear (6.1) and the second gear (6.2).

10. The grinding disc dressing mechanism according to claim 9, characterized in that: The top of the support plate (2) is connected to a rack protection cover (20) with an opening at the bottom, and the upper ends of the two connecting plates (8) are movably accommodated in the rack protection cover (20).

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