Cutter clamping device for grinding machine

Abstract

The utility model provides a cutter clamping device for a grinding machine, which comprises a clamping seat, a mounting plate arranged on the side wall of the clamping seat, a lower clamping plate arranged on the side wall of the mounting plate, an upper clamping plate arranged at the top of the lower clamping plate, a pair of turntables symmetrically arranged at the top of the upper clamping plate, and threaded holes formed in the positions, corresponding to the turntables, of the top of the lower clamping plate. The bottom of the turntable penetrates through the upper clamping plate and is provided with a threaded column connected with the threaded hole; a limiting hole is formed in the position, corresponding to the threaded hole, of the bottom of the lower clamping plate, a communicating hole used for communicating the limiting hole with the threaded hole is formed in the lower clamping plate, a movable column inserted into the communicating hole is arranged at the bottom of the threaded column, and a limiting disc arranged in the limiting hole is arranged at the bottom of the movable column; the tool clamping device of the cutting machine has the advantages that the structure is reasonable, the tool clamping operation is simple, and the clamping efficiency is high.

Description

Technical Field

[0001] The utility model relates to tool processing, in particular to a tool clamping device for a grinding machine. Background Art

[0002] In the field of mechanical processing, especially in the process of cutting or drilling, when the cutting or drilling tool is worn, it is necessary to sharpen the tool. The traditional sharpening process generally adopts a manual method, that is, the tool is held and ground on a high-speed rotating grinding wheel to make the tool have a sharp edge. This sharpening method is more dependent on the personal skills of the operator.

[0003] In the prior art, the existing tool clamping device for grinders generally clamps two clamping plates by bolts and uses the clamping groove on the clamping plate to clamp the tool. In this clamping method, the two clamping plates will not separate after the bolt is taken out. The bolt needs to be completely taken out and then one clamping plate needs to be taken out. The operation is very troublesome and the tool clamping operation is cumbersome. Moreover, when clamping, the threaded column of the bolt and the threaded hole need to be realigned, which is prone to misalignment, so repeated alignment and positioning are required, which wastes a lot of time and has low clamping efficiency. Now, there is an urgent need for a tool clamping device for grinders to solve the above problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a tool clamping device for a grinder to solve the problems raised in the above-mentioned background technology. The utility model has a reasonable structure, simple tool clamping operation and high clamping efficiency.

[0005] In order to achieve the above object, the utility model is implemented through the following technical scheme: a tool clamping device for a grinding machine, comprising:

[0006] A clamping seat, a mounting plate is arranged on the side wall of the clamping seat, a lower clamping plate is arranged on the side wall of the mounting plate, an upper clamping plate is arranged on the top of the lower clamping plate, an upper clamping groove is arranged on the bottom of the upper clamping plate, a lower clamping groove is arranged on the bottom of the lower clamping plate, a pair of turntables are symmetrically arranged on the top of the upper clamping plate, a threaded hole is arranged at the position corresponding to the turntable on the top of the lower clamping plate, and a threaded column connected to the threaded hole is arranged on the bottom of the turntable through the upper clamping plate;

[0007] A limiting hole is provided at a position corresponding to the threaded hole at the bottom of the lower clamping plate, a connecting hole for connecting the limiting hole with the threaded hole is provided inside the lower clamping plate, a movable column inserted into the connecting hole is provided at the bottom of the threaded column, a limiting plate placed inside the limiting hole is provided at the bottom of the movable column, a pair of pressing columns are symmetrically provided at the bottom of the upper clamping plate, a pressing hole is provided at a position corresponding to the pressing column at the top of the lower clamping plate, and an ejection spring is provided inside the pressing hole.

[0008] Furthermore, the diameter of the pressure column matches the inner diameter of the pressure hole, and the pressure column is always inside the pressure hole.

[0009] Furthermore, the diameters of the threaded column and the limiting plate are both larger than the diameter of the movable column.

[0010] Furthermore, a guide hole is provided inside the lower clamping plate and is arranged below the pressing hole and is connected to the pressing hole. A guide column is provided at the bottom of the pressing column and penetrates the ejection spring and is inserted into the guide hole.

[0011] Furthermore, a plurality of force application holes are provided on the side wall of the turntable, and a force application column is provided inside one of the force application holes.

[0012] Furthermore, fixing bolts are arranged between the lower clamping plate and the mounting plate.

[0013] Furthermore, a motor is arranged inside the clamping seat, an output shaft of the motor passes through the side wall of the clamping seat and is connected to the mounting plate, and a bearing is arranged between the output shaft of the motor and the clamping seat.

[0014] The tool is clamped when the upper and lower clamps are in close contact with each other, and the upper and lower clamps are connected to each other to form a hole for the tool to be clamped. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0016] Figure 1 It is a three-dimensional diagram of a tool clamping device for a grinding machine according to an embodiment of the utility model;

[0017] Figure 2 It is a partial stereogram of the connection between the upper clamping plate and the lower clamping plate in a tool clamping device for a grinder according to one embodiment of the utility model;

[0018] Figure 3 It is a partial right side sectional view of the connection between the upper clamping plate and the lower clamping plate in a tool clamping device for a grinder according to one embodiment of the utility model;

[0019] Figure 4 According to an embodiment of the present utility model Figure 3 A magnified view of middle;

[0020] Figure 5 It is a right side cross-sectional view of the connection between the upper clamping plate and the lower clamping plate in a tool clamping device for a grinder according to one embodiment of the utility model;

[0021] In the figure: 1. Clamping seat; 2. Bearing; 3. Motor; 4. Mounting plate; 5. Turntable; 51. Force hole; 52. Force column; 6. Threaded column; 7. Upper clamping plate; 71. Upper clamping groove; 8. Lower clamping plate; 81. Lower clamping groove; 9. Pressing column; 10. Threaded hole; 11. Fixing bolt; 12. Moving column; 13. Limiting plate; 14. Guide column; 15. Pressing hole; 16. Ejection spring; 17. Limiting hole; 18. Guide hole; 19. Connecting hole. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] like Figure 1 As shown, the utility model provides a technical solution: a tool clamping device for a grinding machine, comprising:

[0024] A clamping seat 1, a mounting plate 4 is arranged on the side wall of the clamping seat 1, a lower clamping plate 8 is arranged on the side wall of the mounting plate 4, an upper clamping plate 7 is arranged on the top of the lower clamping plate 8, an upper clamping groove 71 is arranged on the bottom of the upper clamping plate 7, a lower clamping groove 81 is arranged on the bottom of the lower clamping plate 8, a pair of turntables 5 are symmetrically arranged on the top of the upper clamping plate 7, a threaded hole 10 is arranged at the top of the lower clamping plate 8 at a position corresponding to the turntable 5, a threaded column 6 connected to the threaded hole 10 is arranged on the bottom of the turntable 5 through the upper clamping plate 7, a through hole is arranged on the top of the upper clamping plate 7, and the threaded column 6 passes through the through hole;

[0025] A limiting hole 17 is provided at the bottom of the lower clamping plate 8 at a position corresponding to the threaded hole 10, a connecting hole 19 is provided inside the lower clamping plate 8 for connecting the limiting hole 17 with the threaded hole 10, a movable column 12 is provided at the bottom of the threaded column 6 to be inserted into the connecting hole 19, a limiting plate 13 is provided at the bottom of the movable column 12 to be placed inside the limiting hole 17, a pair of pressing columns 9 are symmetrically provided at the bottom of the upper clamping plate 7, a pressing hole 15 is provided at the top of the lower clamping plate 8 at a position corresponding to the pressing column 9, and an ejection spring 16 is provided inside the pressing hole 15. When the tool needs to be clamped, this design positions the upper clamping plate 7 and the lower clamping plate 8 when connected under the action of the pressing column 9 and the pressing hole 15, so that the threaded column 6 is placed just above the threaded hole 10, and at the same time, the limiting plate 13 is used to Under the limiting action of the movable column 12, the movable column 12 moves inside the connecting hole 19 to ensure that the threaded column 6 is placed directly above the threaded hole 10 and will not tilt, thereby ensuring the connection between the threaded column 6 and the threaded hole 10, saving the docking time between the threaded column 6 and the threaded hole 10, and improving the clamping efficiency, so that the turntable 5 presses the upper clamping plate 7 to fit with the lower clamping plate 8, and the tool is clamped under the action of the close fit between the upper clamping groove 71 and the lower clamping groove 81, thereby facilitating the clamping of the tool, and under the action of the ejection spring 16, the upper clamping plate 7 and the lower clamping plate 8 are separated when the threaded column 6 is disengaged from the threaded hole 10, thereby facilitating the subsequent replacement of a new tool between the upper clamping groove 71 and the lower clamping groove 81 for clamping, and the clamping operation is simple.

[0026] Reference Figure 2 and Figure 5 The diameter of the pressure column 9 matches the inner diameter of the pressure hole 15 , and the pressure column 9 is always inside the pressure hole 15 . This design improves the stability of the pressure column 9 moving inside the pressure hole 15 and prevents the pressure column 9 from escaping from the pressure hole 15 .

[0027] Reference Figure 3 and Figure 4 The diameters of the threaded column 6 and the limit plate 13 are both larger than the diameter of the movable column 12. This design facilitates the use of the limit plate 13. When the threaded column 6 disengages from the threaded hole 10, the ejection spring 16 applies force to the pressure column 9, so that when the pressure column 9 ejects the upper clamping plate 7, the limit plate 13 limits the upward position of the upper clamping plate 7, thereby ensuring that the threaded column 6 is placed directly above the threaded hole 10, so that when the tool is re-clamped later, there is no need to realign the threaded column 6 and the threaded hole 10, which saves the docking time between the threaded column 6 and the threaded hole 10, thereby improving the clamping efficiency.

[0028] Reference Figure 4A guide hole 18 is provided inside the lower clamping plate 8 and is placed below the pressing hole 15 and is connected to the pressing hole 15. A guide column 14 is provided at the bottom of the pressing column 9 and passes through the ejection spring 16 and is inserted into the guide hole 18. This design connects the guide column 14 with the guide hole 18. When the pressing column 9 presses the ejection spring 16, the ejection spring 16 is extended and retracted along the guide column 14, thereby improving the stability of the movement of the ejection spring 16.

[0029] Reference Figure 2 A plurality of force-applying holes 51 are provided on the side wall of the turntable 5, and a force-applying column 52 is provided inside one of the force-applying holes 51. This design enables the force-applying column 52 to be replaced inside the plurality of force-applying holes 51, thereby facilitating the application of force to the turntable 5 and avoiding interference when applying force to the turntable 5.

[0030] Reference Figure 1 A fixing bolt 11 is arranged between the lower clamping plate 8 and the mounting plate 4. This design improves the stability of the connection between the lower clamping plate 8 and the mounting plate 4. A motor 3 is arranged inside the clamping seat 1. The output shaft of the motor 3 passes through the side wall of the clamping seat 1 and is connected to the mounting plate 4. A bearing 2 is arranged between the output shaft of the motor 3 and the clamping seat 1. This design drives the mounting plate 4 to rotate by operating the motor 3. The rotation of the mounting plate 4 drives the tool clamped by the upper clamping plate 7 and the lower clamping plate 8 to rotate, thereby facilitating the adjustment of the rotation angle of the tool.

[0031] Reference Figure 1-Figure 5As an embodiment of the present utility model: when the tool needs to be clamped, the staff places the tool in the lower clamping groove 81 of the lower clamping plate 8, and then presses the upper clamping plate 7, so that the upper clamping plate 7 presses the ejection spring 16 under the action of the pressing column 9 and the pressing hole 15, ensuring that the lower end surface of the upper clamping plate 7 is in contact with the upper end surface of the lower clamping plate 8, and then rotates the force applying column 52 to drive the turntable 5 to rotate, and the rotation of the turntable 5 drives the threaded column 6 to rotate along the threaded hole 10, and the threaded column 6 rotates and moves downward to drive the turntable 5 to move downward to press the top of the upper clamping plate 7, so that the upper clamping plate 7 and the lower clamping plate 8 are closely fitted under the action of the pressing of the turntable 5, so that the upper clamping groove 71 and the lower clamping groove 81 clamp the tool, thereby facilitating the clamping of the tool. Under the action of the column 9 and the pressing hole 15, the upper clamping plate 7 and the lower clamping plate 8 are positioned when connected, so that the threaded column 6 is placed directly above the threaded hole 10. At the same time, under the action of the limiting plate 13 limiting the movable column 12, the movable column 12 is moved inside the connecting hole 19 to ensure that the threaded column 6 is placed directly above the threaded hole 10 and will not tilt, thereby ensuring the connection between the threaded column 6 and the threaded hole 10, saving the docking time between the threaded column 6 and the threaded hole 10, and improving the clamping efficiency. Under the action of the ejection spring 16, when the threaded column 6 is separated from the threaded hole 10, the pressing column 9 applies upward force to the upper clamping plate 7 to separate it from the lower clamping plate 8, thereby facilitating the subsequent replacement of a new tool between the upper clamping groove 71 and the lower clamping groove 81 for clamping. The clamping operation is simple, which improves the practicality of the utility model.

[0032] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0033] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A tool clamping device for a grinding machine, comprising: A clamping seat (1), wherein a mounting plate (4) is disposed on a side wall of the clamping seat (1), a lower clamping plate (8) is disposed on the side wall of the mounting plate (4), an upper clamping plate (7) is disposed on the top of the lower clamping plate (8), an upper clamping groove (71) is disposed on the bottom of the upper clamping plate (7), a lower clamping groove (81) is disposed on the bottom of the lower clamping plate (8), a pair of turntables (5) are symmetrically disposed on the top of the upper clamping plate (7), a threaded hole (10) is disposed on the top of the lower clamping plate (8) at a position corresponding to the turntable (5), and a threaded column (6) connected to the threaded hole (10) is disposed on the bottom of the turntable (5) and passes through the upper clamping plate (7); It is characterized in that A limiting hole (17) is provided at a position corresponding to the threaded hole (10) at the bottom of the lower clamping plate (8); a connecting hole (19) for connecting the limiting hole (17) with the threaded hole (10) is provided inside the lower clamping plate (8); a movable column (12) inserted into the connecting hole (19) is provided at the bottom of the threaded column (6); a limiting plate (13) placed inside the limiting hole (17) is provided at the bottom of the movable column (12); a pair of pressure columns (9) are symmetrically provided at the bottom of the upper clamping plate (7); a pressure hole (15) is provided at a position corresponding to the pressure column (9) at the top of the lower clamping plate (8); an ejection spring (16) is provided inside the pressure hole (15).

2. A tool clamping device for a grinding machine according to claim 1, characterized in that: The diameter of the pressure column (9) matches the inner diameter of the pressure hole (15), and the pressure column (9) is always inside the pressure hole (15).

3. The tool clamping device for a grinding machine according to claim 1, characterized in that: The diameters of the threaded column (6) and the limiting plate (13) are both larger than the diameter of the moving column (12).

4. A tool clamping device for a grinding machine according to claim 1, characterized in that: The lower clamping plate (8) is provided with a guide hole (18) disposed below the pressure hole (15) and connected to the pressure hole (15), and the bottom of the pressure column (9) is provided with a guide column (14) penetrating the ejection spring (16) and inserted into the guide hole (18).

5. The tool clamping device for a grinding machine according to claim 1, characterized in that: The side wall of the rotating disk (5) is provided with a plurality of force-applying holes (51), and a force-applying column (52) is arranged inside one of the force-applying holes (51).

6. The tool clamping device for a grinding machine according to claim 1, characterized in that: A fixing bolt (11) is provided between the lower clamping plate (8) and the mounting plate (4).

7. The tool clamping device for a grinding machine according to claim 1, characterized in that: A motor (3) is arranged inside the clamping seat (1); an output shaft of the motor (3) passes through a side wall of the clamping seat (1) and is connected to the mounting plate (4); and a bearing (2) is arranged between the output shaft of the motor (3) and the clamping seat (1).

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