Straight blade sharpening machine blade double station positioning structure

Abstract

This utility model discloses a dual-station positioning structure for straight blade grinding machine blades, including a rotatable chuck table supported in the machine bed and a blade positioning drive mechanism installed on one side of the chuck table. A first-station positioning component and a second-station positioning component are also movably mounted on the machine bed, located on the other side of the chuck table. The positioning surfaces of both components face the chuck table and are parallel to its longitudinal direction. Both positioning surfaces are perpendicularly arranged and at unequal distances from the chuck table. The first-station and second-station positioning components are driven vertically by corresponding positioning component drive devices. Positioning component guide supports are respectively provided on the outer sides of the first-station and second-station positioning components. This dual-station positioning structure for straight blade grinding machine blades enables the positioning of the straight blade at two stations required for grinding and polishing during the straight blade machining process, and the positioning process can be automated.

Description

Technical Field

[0001] This utility model relates to a sheet-shaped straight knife processing device, and more particularly to a processing device with dual functions of straight knife grinding and cutting edge polishing. Background Technology

[0002] In the manufacturing process of a flat straight cutter, the sides and beveled edges of the cutter need to be ground. To improve the sharpness of the cutting edge, the ground edge also needs to be polished to remove any burrs that may be generated during grinding. A straight cutter grinder with both grinding and polishing functions can complete the grinding of the sides and beveled edges of the cutter and the polishing of the cutting edge on the same machine. When grinding the beveled edge, the flat straight cutter needs to be positioned so that the edge is parallel to the chuck table and extends a short distance beyond the side of the chuck table. The electromagnetic chuck on the chuck table holds the flat straight cutter firmly, and then the chuck table is rotated at a certain angle until the beveled edge is horizontal for grinding. When polishing the ground cutting edge, the flat straight cutter needs to be repositioned so that the edge is not only parallel to the chuck table but also has a greater distance from the side of the chuck table, so that the polishing wheel can polish the lower side of the cutting edge. In addition to adding polishing components to existing straight-blade grinding machines, this type of straight-blade grinding machine, which combines grinding and polishing functions, also needs to consider the function of secondary positioning of the straight blade on the grinding machine. Existing straight-blade grinding machines do not have this function. Secondary positioning can be performed manually using appropriate gauges, but the efficiency is obviously too low to meet the requirements of mass production. Utility Model Content

[0003] In view of the above-mentioned shortcomings of the existing technology, the technical problem to be solved by this utility model is to provide a dual-station positioning structure for straight blade grinding machine blades, which can realize the positioning of straight blades in two stations required for grinding and polishing during the straight blade processing, and the positioning process can be automated.

[0004] To solve the above-mentioned technical problems, this utility model provides a dual-station positioning structure for a straight blade grinding machine blade, including a suction cup worktable rotatably supported in the machine bed and a blade positioning drive mechanism installed on one side of the suction cup worktable. A first-station positioning component and a second-station positioning component are also movably mounted on the machine bed, located on the other side of the suction cup worktable. The positioning surfaces of both the first-station positioning component and the second-station positioning component face the suction cup worktable and are parallel to its longitudinal direction. The two positioning surfaces are perpendicularly arranged and at unequal distances from the suction cup worktable. The first-station positioning component and the second-station positioning component are driven to move up and down by corresponding positioning component drive devices. Positioning component guide supports are respectively provided on the outer sides of the first-station positioning component and the second-station positioning component.

[0005] In the above structure, since a first-position locating component and a second-position locating component are also movably mounted on the machine bed, located on the other side of the chuck table, with their locating surfaces facing the chuck table and parallel to its longitudinal direction, and both locating surfaces being perpendicular and unequal in distance from the chuck table, the first-position locating component and the second-position locating component can meet the positioning requirements of the grinding and polishing stations during straight tool machining. The locating surface of the first-position locating component... The first positioning unit is closer to the suction cup table and is used for positioning the straight cutter before grinding. The second positioning unit is farther from the suction cup table and is used for positioning the straight cutter after grinding and before polishing. Before grinding, the straight cutter is placed on the horizontal working surface of the suction cup table. The blade positioning drive mechanism on the opposite side pushes it so that its cutting edge edge is aligned with the positioning surface of the first positioning unit. The suction cup table holds the straight cutter firmly, allowing for side grinding, or the suction cup table can be rotated to make the beveled cutting edge of the straight cutter horizontal for bevel grinding. After grinding, the suction cup table returns to a horizontal working surface. The blade positioning drive mechanism then pushes the straight cutter forward a certain distance so that its cutting edge edge is aligned with the positioning surface of the second positioning unit. After the suction cup table holds the straight cutter firmly, it can be rotated at a certain angle to perform polishing using the polishing head. This achieves blade positioning for both grinding and polishing in the straight cutter machining process, and the positioning process is automatically driven by the blade positioning drive mechanism without manual intervention.

[0006] Furthermore, since the positioning components at station one and station two are driven to move up and down by their respective positioning component drive devices, and positioning component guide supports are respectively provided on the outer side of the positioning components at station one and station two, the positioning components at station one and station two have two position states, one up and one down. When a relevant positioning operation is required, the positioning component drive device drives the corresponding positioning component at station one or station two to rise, so that the positioning surface on it is in a position that corresponds to the edge line of the straight cutter to be positioned, so that the edge line of the straight cutter can contact and fit with the positioning surface. After positioning is completed, the positioning component drive device drives the positioning component at station one or station two to fall below the working surface of the suction cup worktable, making room for the corresponding grinding or polishing process. The lifting and lowering process of the positioning components at station one and station two is also automated, ensuring the automation of the positioning process. The positioning guide supports installed on the outside of the positioning components at workstation one and workstation two respectively ensure the stability of the positioning surfaces during the lifting and lowering process of the positioning components at workstation one and workstation two.

[0007] In a preferred embodiment of this invention, the lengths of the first and second positioning components correspond to the length of the suction cup worktable. With this embodiment, the positioning surfaces of the first and second positioning components can correspond to the length of the suction cup worktable, ensuring that the cutting edge of the straight blade contacts and fits against the positioning surface for positioning regardless of changes in the blade length.

[0008] In another preferred embodiment of this utility model, the opposite sides of the first positioning member and the second positioning member are abutted together, and the guide support surfaces of the two positioning member guide supports are abutted to the corresponding outer sides of the first or second positioning member on the corresponding side. With this embodiment, the first positioning member, the second positioning member, and the two outer positioning member guide supports are all abutted together in the lateral direction, ensuring the stability of the first and second positioning members during lifting and lowering, as well as the stability of the positioning surfaces during positioning.

[0009] In another preferred embodiment of this utility model, the positioning surfaces on the first and second positioning components are located at the upper ends of the first and second positioning components and protrude towards the suction cup worktable. This embodiment minimizes the lifting stroke of the first and second positioning components and provides ample installation space for the positioning guide support component on the outer side of the first positioning component.

[0010] In a further preferred embodiment of this utility model, the lower end of the first positioning component is provided with a bent portion facing away from the suction cup worktable, and the lower end of the second positioning component is located above this bent portion. This embodiment allows for a compact structure between the first and second positioning components.

[0011] In another further preferred embodiment of this utility model, the upper edges of the positioning surfaces of the first and second positioning components of the workstation are vertically shifted between above and below the horizontal working surface of the suction cup worktable, and the lower edges of the positioning surfaces of the first and second positioning components of the workstation are vertically shifted below the horizontal working surface of the suction cup worktable. This embodiment minimizes the lifting stroke of the first and second positioning components of the workstation while meeting the straight tool positioning requirements.

[0012] In another preferred embodiment of this invention, the positioning element driving device is a pneumatic cylinder or a hydraulic cylinder. This embodiment ensures stable operation of the pneumatic or hydraulic cylinder, facilitating automated control.

[0013] In a further preferred embodiment of this utility model, the two ends of the lower end face of the second positioning member are respectively connected to the piston rod end of the cylinder or hydraulic cylinder. The two ends of the bent portion of the first positioning member are provided with clearance notches for the cylinder or hydraulic cylinder, and the two ends of the lower end face of the bent portion of the first positioning member are respectively connected to the piston rod end of the cylinder or hydraulic cylinder. This embodiment ensures the connection between the first and second positioning members and their respective positioning member drive devices.

[0014] In another further preferred embodiment of this utility model, the two positioning guide supports are fixedly connected to the machine bed. This embodiment ensures the stability of the positioning guide supports in guiding and supporting the first and second positioning members of the workstation.

[0015] In a further preferred embodiment of this utility model, the blade positioning drive mechanism includes a blade positioning push arm located above the working surface of the suction cup worktable. The blade positioning push arm is driven by a rotary cylinder mounted on the side of the suction cup worktable, and the swing plane of the blade positioning push arm is parallel to the working surface of the suction cup worktable. With this embodiment, the blade positioning drive mechanism has a simple structure and can easily push the straight blade towards either the first or second positioning component until its cutting edge contacts and adheres to the corresponding positioning surface. After positioning, the blade positioning push arm can be rotated back by the rotary cylinder and exit the working surface of the suction cup worktable without affecting the grinding of the grinding head. Attached Figure Description

[0016] The dual-station positioning structure for the blade of the straight blade grinding machine of this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0017] Figure 1 This is a schematic diagram of a specific embodiment of the dual-station positioning structure for a straight blade grinding machine blade of this utility model;

[0018] Figure 2 yes Figure 1 An enlarged view of the suction cup worktable and related components in the structure shown;

[0019] Figure 3 yes Figure 1 The top view of the suction cup worktable and related components in the structure shown.

[0020] In the figure: 1-bed, 2-positioning guide support, 3-positioning drive device, 4-bending part, 5-positioning part of station 2, 6-positioning part of station 1, 7-polishing component, 8-suction cup worktable, 9-blade positioning drive mechanism, 10-grinding head assembly, 11-rotary cylinder, 12-positioning surface, 13-blade positioning push arm. Detailed Implementation

[0021] exist Figure 1 In the dual-station positioning structure of the straight blade grinding machine shown, the suction cup worktable 8 is rotatably supported in the bed 1 by a drive motor. The grinding head assembly 10 is supported on the bed 1 by guide rails on both sides for grinding the sides and beveled edges of the straight blade. A polishing component 7 is also installed on the grinding head seat of the grinding head assembly 10 to polish the edge of the ground straight blade. Several blade positioning drive mechanisms 9 are installed on one side of the suction cup worktable 8. (See also...) Figure 2 and Figure 3 Each blade positioning drive mechanism 9 includes a blade positioning push arm 13, which is located above and close to the working surface of the suction cup worktable 8. One end of the blade positioning push arm 13 is mounted on the swing output shaft of the rotary cylinder 11, which is perpendicular to the working surface of the suction cup worktable 8. The rotary cylinder 11 is mounted on the side of the suction cup worktable 8. The blade positioning push arm 13 swings under the drive of the rotary cylinder 11, and its swing plane is parallel to the working surface of the suction cup worktable 8. The extended end of the blade positioning push arm 13 is an arc surface. When the blade positioning push arm 13 swings inward toward the suction cup worktable 8, the arc surface can push the straight blade toward the other side of the suction cup worktable 8, thereby providing a pushing effect to move the straight blade toward the positioning part during straight blade positioning. After positioning, the blade positioning push arm 13 is pulled out from directly above the working surface of the suction cup worktable 8 under the reverse drive of the rotary cylinder 11, making room for the grinding of the straight blade.

[0022] The bed 1 is also equipped with a first-positioning component 6 and a second-positioning component 5, which are located on the side of the suction cup worktable 8 opposite to the blade positioning drive mechanism 9. The lengths of the first-positioning component 6 and the second-positioning component 5 correspond to the length of the suction cup worktable 8. See [reference needed]. Figure 3 The sides of the positioning component 6 at station one and the positioning component 5 at station two are in contact with each other. The lower end of the positioning component 6 at station one is provided with a bent part 4 facing away from the suction cup worktable 8. The lower end of the positioning component 5 at station two is located above the bent part 4. Positioning component guide support 2 is provided on the outer side of the positioning component 6 at station one and the positioning component 5 at station two respectively. The two positioning component guide support 2 are fixedly connected to the bed 1. The guide support surface of the two positioning component guide support 2 is in contact with the corresponding outer side of the positioning component 6 at station one or the positioning component 5 at station two.

[0023] Positioning surfaces 12 are provided on the upper ends of both the positioning component 6 at station one and the positioning component 5 at station two. The positioning surfaces 12 are both facing the suction cup worktable 8 and protruding in the direction of the suction cup worktable 8. The positioning surfaces 12 are also parallel and perpendicular to the longitudinal direction of the suction cup worktable 8. The distances of the two positioning surfaces 12 to the suction cup worktable 8 are different. The positioning surface 12 of the positioning component 6 at station one is closer to the suction cup worktable 8 and is used to position the straight cutter to be ground. The positioning surface 12 of the positioning component 5 at station two is relatively farther from the suction cup worktable 8 so that the part of the straight cutter that protrudes from the suction cup worktable 8 after positioning is longer and is used to position the straight cutter to be polished after grinding. Positioning component 6 at station one and positioning component 5 at station two are driven to move up and down by corresponding positioning component driving devices 3. The positioning component driving device 3 is preferably a cylinder or a hydraulic cylinder. The two ends of the lower end face of positioning component 5 at station two are connected to the piston rod end of the cylinder or hydraulic cylinder of the positioning component driving device 3. The two ends of the bent part 4 of positioning component 6 at station one are provided with clearance notches for the cylinder or hydraulic cylinder. The two ends of the lower end face of the bent part 4 of positioning component 6 at station one are connected to the piston rod end of the cylinder or hydraulic cylinder of the positioning component driving device 3. Under the drive of the positioning component driving device 3, the upper edge of the positioning surface 12 of positioning component 6 at station one and positioning component 5 at station two moves up and down between above and below the working surface of the horizontal suction cup worktable 8. At the same time, the lower edge of the positioning surface 12 of positioning component 6 at station one and positioning component 5 at station two moves up and down below the working surface of the horizontal suction cup worktable 8. When the straight cutter to be ground needs to be positioned, the first positioning component 6 and the second positioning component 5 can rise simultaneously under the drive of their respective positioning component driving devices 3, so that the upper edge of the positioning surface 12 of the first positioning component 6 is higher than the working surface of the suction cup worktable 8. The straight cutter to be ground and positioned moves closer to the first positioning component 6 under the push of the blade positioning driving mechanism 9 until its cutting edge line contacts and fits with the positioning surface 12 of the first positioning component 6 to complete the positioning. At this time, the second positioning component 5 is located between the first positioning component 6 and the corresponding positioning component guide support 2, which plays a role in lateral support and stability for the first positioning component 6. After the positioning is completed, the first positioning component 6 and the second positioning component 5 fall simultaneously below the working surface of the suction cup worktable 8 under the drive of their respective positioning component driving devices 3.

[0024] When the cutting edge needs to be polished after the straight cutter is ground, the suction table 8 returns to a horizontal position. The second positioning component 5 rises under the drive of its positioning component drive device 3, so that the upper edge of the positioning surface 12 of the second positioning component 5 is higher than the working surface of the suction table 8. At this time, the first positioning component 6 remains in a low position. The straight cutter to be polished and positioned moves closer to the second positioning component 5 under the push of the blade positioning drive mechanism 9 until its cutting edge edge contacts and fits with the positioning surface 12 of the second positioning component 5 to complete the positioning. At this time, the second positioning component 5 is supported by the positioning component guide support 2 on its rear side and has a lateral support and stabilizing effect. After the positioning is completed, the second positioning component 5 descends to a position below the working surface of the suction table 8 under the drive of its positioning component drive device 3.

[0025] The above are only some preferred embodiments of this utility model, but this utility model is not limited thereto, and many improvements and modifications can be made. Any improvements and modifications made based on the basic principles of this utility model should be considered to fall within the protection scope of this utility model.

Claims

1. A dual-station positioning structure for a straight blade grinding machine blade, comprising a suction cup worktable (8) rotatably supported in a bed (1) and a blade positioning drive mechanism (9) mounted on one side of the suction cup worktable (8), characterized in that: On the bed (1), there are also movable positioning components (6) and (5) of the first position. Positioning components (6) and (5) of the first position are located on the other side of the suction cup worktable (8). The positioning surfaces (12) of positioning components (6) and (5) of the first position are facing the suction cup worktable (8) and are parallel to the longitudinal direction of the suction cup worktable (8). The two positioning surfaces (12) are set vertically and the distances to the suction cup worktable (8) are different. Positioning components (6) and (5) of the first position are driven to move up and down by the corresponding positioning component driving device (3). Positioning component guide support (2) is provided on the outside of positioning components (6) and (5).

2. The dual-station positioning structure for straight blade grinding machine blades according to claim 1, characterized in that: The lengths of the first positioning component (6) and the second positioning component (5) correspond to the length of the suction cup worktable (8).

3. The dual-station positioning structure for straight blade grinding machine blades according to claim 1, characterized in that: The opposite sides of the first positioning component (6) and the second positioning component (5) are in contact with each other, and the guide support surfaces of the two positioning component guide support components (2) are in contact with the corresponding outer sides of the first positioning component (6) or the second positioning component (5) on the corresponding side.

4. The dual-station positioning structure for straight blade grinding machine blades according to claim 1, characterized in that: The positioning surfaces (12) on the first positioning component (6) and the second positioning component (5) are located at the upper end of the first positioning component (6) and the second positioning component (5) and protrude towards the suction cup worktable (8).

5. The dual-station positioning structure for straight blade grinding machine blades according to claim 4, characterized in that: The lower end of the first positioning component (6) is provided with a bent portion (4) facing away from the suction cup worktable (8), and the lower end of the second positioning component (5) is located above the bent portion (4).

6. The dual-station positioning structure for straight blade grinding machine blades according to claim 1, characterized in that: The upper edge of the positioning surface (12) of the positioning component (6) of station one and the positioning component (5) of station two moves up and down between above and below the working surface of the suction cup worktable (8) which is in a horizontal state, and the lower edge of the positioning surface (12) of the positioning component (6) of station one and the positioning component (5) of station two moves up and down below the working surface of the suction cup worktable (8) which is in a horizontal state.

7. The dual-station positioning structure for straight blade grinding machine blades according to claim 1 or 6, characterized in that: The positioning component drive device (3) is a cylinder or a hydraulic cylinder.

8. The dual-station positioning structure for straight blade grinding machine blades according to claim 7, characterized in that: The lower end face of the second positioning member (5) is connected to the piston rod end of the cylinder or oil cylinder at both ends along the length direction. The bending part (4) of the first positioning member (6) is provided with clearance notches for the cylinder or oil cylinder at both ends. The lower end face of the bending part (4) of the first positioning member (6) is connected to the piston rod end of the cylinder or oil cylinder at both ends.

9. The dual-station positioning structure for straight blade grinding machine blades according to claim 1, characterized in that: The two positioning guide supports (2) are fixedly connected to the bed (1).

10. The dual-station positioning structure for straight blade grinding machine blades according to claim 1, characterized in that: The blade positioning drive mechanism (9) includes a blade positioning push arm (13), which is located above the working surface of the suction cup worktable (8). The blade positioning push arm (13) is driven by a rotary cylinder (11) installed on the side of the suction cup worktable (8). The swing plane of the blade positioning push arm (13) is parallel to the working surface of the suction cup worktable (8).

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