Blade composite clamping device of multi-blade co-grinding tool sharpener
By installing a combined clamping device of the angle down-pressing cylinder and the blade pressing plate on the electromagnetic suction cup table, the stable clamping problem of multiple blades in the multi-cutting co-grinding technology is solved, and the simultaneous grinding of multiple blades is achieved, thereby improving production efficiency.
Patent Information
- Application Number
- CN202421594653.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-06
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-07-06
AI Technical Summary
The existing sheet-shaped straight knife sharpeners can only reliably adsorb and fix one blade, which limits the stable clamping of multiple blades in the multi-cutting co-grinding technology, resulting in the inability to improve production efficiency.
The angle down-pressure cylinder is installed on one side of the electromagnetic suction cup table. The double function of the blade pressure plate and the electromagnetic suction cup table achieves reliable clamping of multiple blades. The piston rod of the angle down-pressure cylinder is used to drive the blade pressure plate into and out of the electromagnetic suction cup table table table table to ensure stable clamping of multiple blades.
Reliable clamping of multiple blades is achieved, which meets the requirements of grinding multiple blades at the same time in multi-cutting co-grinding technology, and improves production efficiency.
Smart Images
Figure CN223160607U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a sheet straight knife grinding machine, in particular to a blade clamping device on a multi-knife co-grinding sheet straight knife grinding machine. Background Art
[0002] Sheet straight knives need to be ground by a sheet straight knife grinding machine to ensure the sharpness of their cutting edges. For a conventional sheet straight knife grinding machine, one side of the sheet straight knife where the cutting edge is formed is adsorbed on the electromagnetic chuck table by the electromagnetic suction force of the electromagnetic chuck table. The inclined plane of the cutting edge to be ground is in a horizontal state through the rotation of the electromagnetic chuck table, and the cutting edge inclined plane is ground by the grinding wheel of the grinding machine. Due to the limitation of the electromagnetic suction force generated by the electromagnetic chuck table, only one straight knife blade can be reliably adsorbed and fixed on the same cross-section. Therefore, during the grinding process, only one straight knife blade can be ground for the cutting edge inclined plane, and the production efficiency cannot be improved. The multi-knife co-grinding straight knife grinding technology provides the possibility of high-efficiency processing that can simultaneously grind the cutting edge inclined planes of multiple straight knife blades. In this technology, the blades to be ground are installed overlapping each other in the up and down direction, and it is ensured that the cutting edge inclined planes of the overlapping blades to be ground are in the same plane, so that the cutting edge inclined planes of multiple straight knife blades can be ground simultaneously. However, since the electromagnetic suction force of the electromagnetic chuck table can only ensure the adsorption and fixation of one blade, after multiple blades are installed overlapping each other up and down, the stable clamping of each blade cannot be ensured, which limits the realization of the multi-knife co-grinding technology. Summary of the Utility Model
[0003] Aiming at the above-mentioned deficiencies existing in the prior art, the technical problem to be solved by the utility model is to provide a multi-knife co-grinding knife blade composite clamping device, which can realize the reliable clamping of multiple overlapping blades.
[0004] To solve the above technical problem, a multi-knife co-grinding knife blade composite clamping device of the utility model includes an electromagnetic chuck table. A plurality of corner pressing cylinders are installed on one side of the electromagnetic chuck table. The corner pressing cylinders are arranged at intervals along the length direction of the electromagnetic chuck table. The axis of the piston rod on each corner pressing cylinder is perpendicular to the tabletop of the electromagnetic chuck table. A blade pressing plate is correspondingly installed on the piston rod of each corner pressing cylinder. One end of the blade pressing plate enters and exits above the tabletop of the electromagnetic chuck table along with the rotation of the piston rod.
[0005] After adopting the above technical solution, each straight knife blade overlapped and installed on the electromagnetic chuck workbench is not only adsorbed and fixed by the suction force generated by the electromagnetic chuck of the electromagnetic chuck workbench, but also each corner pressing cylinder installed on one side of the electromagnetic chuck workbench presses each overlapped and installed blade through the blade pressing plate. When the positioning of each overlapped and installed blade is completed, the corner pressing cylinder drives the blade pressing plate to enter above the tabletop of the chuck workbench and presses down to press each blade against the electromagnetic chuck workbench. Under the dual action of the suction force of the electromagnetic chuck of the electromagnetic chuck workbench and the pressure of the corner pressing cylinder, the clamping of each overlapped and installed blade is ensured, and the reliable clamping of multiple overlapped and installed blades is realized, so as to meet the requirement of grinding the edge bevels of multiple blades simultaneously.
[0006] In a preferred embodiment of the present invention, one end of the blade pressing plate is fixedly connected to the piston rod of the corner pressing cylinder, and the extended end of the blade pressing plate enters above the tabletop of the electromagnetic chuck workbench as the piston rod rotates and presses down. With this embodiment, when the extended end of the blade pressing plate enters above the tabletop of the electromagnetic chuck workbench as it rotates and presses down with the corner pressing cylinder, it is used to contact and press the blade. After grinding, the blade pressing plate will rise with the piston rod and rotate reversely to move out of the tabletop of the electromagnetic chuck workbench, with a simple structure.
[0007] In another preferred embodiment of the present invention, the middle of the blade pressing plate is hinged to the piston rod of the corner pressing cylinder, and a pressing plate support is provided on one side of the corner pressing cylinder. When one end of the blade pressing plate enters above the tabletop of the electromagnetic chuck workbench as the piston rod rotates and presses down, the other end of the blade pressing plate is supported on the pressing plate support. With this embodiment, the blade pressing plate hinged in the middle of the piston rod end will rotate and swing with the corner pressing cylinder and move up and down at the same time. When one end of it rotates with the corner pressing cylinder into the tabletop of the electromagnetic chuck workbench and presses down the blade to be ground, the other end will be supported on the pressing plate support. In this way, the piston rod of the corner pressing cylinder will basically only bear axial force, which is beneficial to extending the service life of the corner pressing cylinder.
[0008] In still another preferred embodiment of the present invention, the corner pressing cylinder is installed on the side of the electromagnetic chuck workbench through a cylinder seat. With this embodiment, the corner pressing cylinder is integrated with the electromagnetic chuck workbench through the cylinder seat and can rotate with the electromagnetic chuck workbench, ensuring that the blade pressing plate can press the blade under the drive of the corner pressing cylinder no matter what angular position the electromagnetic chuck workbench is in.
[0009] In a further preferred embodiment of the present invention, the pressing plate support is arranged on the cylinder seat. With this embodiment, the pressing plate support is integrated with the cylinder seat, which can ensure the relative position between the pressing plate support and the blade pressing plate and can provide reliable support for the blade pressing plate no matter what angular position the electromagnetic chuck workbench is in.
[0010] Another further preferred embodiment of the present utility model is that the corner of the corner pressing cylinder is 90°. By adopting this embodiment, the blade pressing plate can be parallel to the length direction of the electromagnetic chuck workbench during the positioning process of the blade to be ground, so as to vacate the operation position, and be perpendicular to the length direction of the electromagnetic chuck workbench when the blade to be ground is pressed after positioning to ensure the pressing effect.
[0011] Another further preferred embodiment of the present utility model is that the corner pressing cylinder is a hydraulic cylinder. By adopting this embodiment, the pressure of the corner pressing cylinder is stable, which can ensure the reliable pressing of the straight blade. Description of the Drawings
[0012] The following further describes in detail the blade composite clamping device of the multi-knife common grinding machine of the present utility model in conjunction with the drawings and specific embodiments.
[0013] Figure 1 is a schematic structural diagram of a specific embodiment of the blade composite clamping device of the multi-knife common grinding machine of the present utility model;
[0014] Figure 2 is Figure 1 a sectional view taken along the line A-A of the structure shown;
[0015] Figure 3 is Figure 1 a schematic diagram when the blade pressing plate rotates with the corner pressing cylinder to be parallel to the electromagnetic chuck workbench in the structure shown;
[0016] [[ID=*28]] Figure 4 is Figure 3 a sectional view taken along the line B-B of the structure shown;
[0017] Figure 5 is Figure 2 a schematic structural diagram of another embodiment of the blade pressing plate in the structure shown.
[0018] In the figure: 1 - electromagnetic chuck workbench, 2 - blade pressing plate, 3 - corner pressing cylinder, 4 - cylinder seat, 5 - table top, 6 - pressing plate support. Specific Embodiment
[0019] In Figure 1 and Figure 2In the multi-knife common grinding blade composite clamping device shown, the electromagnetic chuck workbench 1 is a chuck workbench with a rectangular cross-section. The two ends of the electromagnetic chuck workbench 1 are rotatably supported on the bed of the grinding machine through rotating shafts. The tabletop 5 above it can adsorb the straight knife blades to be ground through electromagnetic suction; several corner pressing cylinders 3 are installed on one side of the electromagnetic chuck workbench 1. The corner pressing cylinder 3 is a special hydraulic or pneumatic cylinder, preferably a hydraulic cylinder. While its piston rod reciprocates axially, it can also make the piston rod rotate forward and backward by an angle. The corner pressing cylinder 3 is installed on the side of the electromagnetic chuck workbench 1 through a cylinder seat 4. The corner pressing cylinders 3 are arranged at intervals along the length direction of the electromagnetic chuck workbench 1. The axis of the piston rod on each corner pressing cylinder 3 is perpendicular to the tabletop 5 of the electromagnetic chuck workbench 1. A blade pressing plate 2 is correspondingly installed on the piston rod of each corner pressing cylinder 3. Each group of straight knife blades to be ground installed one above the other corresponds to at least two blade pressing plates 2. One end of the blade pressing plate 2 enters and exits above the tabletop 5 of the electromagnetic chuck workbench 1 along with the rotation of the piston rod. The rotation angle of the corner pressing cylinder 3 is 90°. Figure 1 and Figure 2 The position of the blade pressing plate 2 shown is the position where it rotates and presses down with the corner pressing cylinder 3 to tightly fix the overlapping straight knife blades to be ground on the tabletop 5, and the electromagnetic chuck workbench 1 rotates by a certain angle so that the edge bevel surfaces of the straight knife blades to be ground are in a horizontal state for grinding. The blade pressing plate 2 is perpendicular to the length direction of the electromagnetic chuck workbench 1 at this position. Figure 3 and Figure 4 Then it shows the position where the blade pressing plate 2 rotates reversely and rises with the corner pressing cylinder 3. At this position, the blade pressing plate 2 is parallel to the length direction of the electromagnetic chuck workbench 1, the tabletop 5 of the electromagnetic chuck workbench 1 is in a horizontal state, and the straight knife blades to be ground are being installed and positioned.
[0020] As a preferred embodiment, as Figures 1 to 3 shown, one end of the blade pressing plate 2 is fixedly connected to the piston rod of the corner pressing cylinder 3, and the outer extending end of the blade pressing plate 2 enters above the tabletop 5 of the electromagnetic chuck workbench 1 along with the rotation and pressing down of the piston rod to realize the tight fixation of the straight knife blades to be ground.
[0021] As another preferred embodiment, as Figure 5 shown, the middle part of the blade pressing plate 2 is hinged to the piston rod of the corner pressing cylinder 3. A pressing plate support 6 is provided on one side of the corner pressing cylinder 3. The pressing plate support 6 is rotatably connected to the cylinder seat 4 and can adjust the height position of the top end up and down. When one end of the blade pressing plate 2 enters above the tabletop 5 of the electromagnetic chuck workbench 1 along with the rotation and pressing down of the piston rod to press the straight knife blades to be ground, the other end of the blade pressing plate 2 is supported on the pressing plate support 6.
[0022] The above only lists some preferred embodiments of the present utility model, but the present utility model is not limited thereto, and many improvements and transformations can also be made. As long as the improvements and transformations are made on the basis of the basic principles of the present utility model, they shall be regarded as falling within the protection scope of the present utility model.
Claims
1. A compound clamping device for the blades of a multi-knife common grinding machine, comprising an electromagnetic chuck workbench (1), characterized in that: A number of corner pressing cylinders (3) are installed on one side of the electromagnetic chuck table (1). The corner pressing cylinders (3) are arranged at intervals along the length direction of the electromagnetic chuck table (1). The axis of the piston rod on the corner pressing cylinder (3) is perpendicular to the tabletop (5) of the electromagnetic chuck table (1). A blade pressing plate (2) is correspondingly installed on the piston rod of each corner pressing cylinder (3). One end of the blade pressing plate (2) enters and exits above the tabletop (5) of the electromagnetic chuck table (1) as the piston rod rotates.
2. The multi-knife co-grinding knife sharpening machine blade composite clamping device according to claim 1, characterized in that: One end of the blade pressing plate (2) is fixedly connected to the piston rod of the corner pressing cylinder (3). The extended end of the blade pressing plate (2) presses down and enters above the tabletop (5) of the electromagnetic chuck table (1) as the piston rod rotates.
3. The multi-knife co-grinding knife sharpening machine blade composite clamping device according to claim 1, characterized in that: The middle part of the blade pressing plate (2) is hinged to the piston rod of the corner pressing cylinder (3). A pressing plate support member (6) is provided on one side of the corner pressing cylinder (3). When one end of the blade pressing plate (2) presses down and enters above the tabletop (5) of the electromagnetic chuck table (1) as the piston rod rotates, the other end of the blade pressing plate (2) is supported on the pressing plate support member (6).
4. The multi-knife co-grinding knife sharpening machine blade composite clamping device according to claim 1, wherein: The corner pressing cylinder (3) is installed on the side surface of the electromagnetic chuck table (1) through a cylinder seat (4).
5. The multi-knife co-grinding knife grinder blade composite clamping device according to claim 3, wherein: The pressing plate support member (6) is arranged on the cylinder seat (4).
6. The multi-knife co-grinding knife blade composite clamping device according to claim 1, characterized in that: The corner of the corner pressing cylinder (3) is 90°.
7. The multi-knife co-grinding knife sharpening machine blade composite clamping device according to any one of claims 1-6, characterized in that: The corner pressing cylinder (3) is a hydraulic cylinder.