Straight knife grinding and polishing apparatus

Abstract

The utility model discloses a straight knife grinding and polishing equipment, including the body and the sucking disc workstation who sets along the body length direction, sucking disc workstation can rotate left and right and adjust the work position, and the grinding head seat is swingly supported on the body through horizontal guide rail pair, and the grinding head is swingly supported on the grinding head seat through vertical guide rail pair and grinding head slide seat, and the grinding head is driven to run by grinding head motor, and the horizontal guide rail pair is also provided with horizontal shift slide table on one end of grinding head seat, and the polishing support is provided with on horizontal shift slide table through polishing wheel lifting guide rail pair, and the polishing motor is installed on the polishing support, and the motor shaft of polishing motor is vertically arranged, and the polishing wheel disc is installed on the motor shaft end of polishing motor, and the inclined polishing surface is arranged on the upper end face outer periphery of polishing wheel disc. The straight knife grinding and polishing equipment of the utility model not only can realize the grinding and polishing processing of the sheet straight knife, but also is simple in structure and convenient to use.

Description

Technical Field

[0001] This utility model relates to a cutting tool manufacturing equipment, and more particularly to a grinding and polishing equipment in the manufacturing process of a straight cutting tool. Background Technology

[0002] In the manufacturing process of a flat straight knife, the sides of the knife body and the beveled edge forming the cutting edge must be ground. To ensure the sharpness of the knife after grinding, the two sides of the cutting edge also need to be polished to remove burrs, flash, and other defects that may occur at the cutting edge after grinding the beveled edge, which affect the sharpness of the knife. Normally, grinding and polishing of flat straight knives are performed in two separate processes using different equipment, which is obviously inefficient. Utility model patent CN220561060U discloses a multi-functional straight knife grinding machine. In addition to a grinding head device mounted on the grinding head holder on the grinding machine guide rail, it also has a polishing head mounted on a polishing support on the grinding machine guide rail. This is used to polish the cutting edge after the flat straight knife is ground, allowing the grinding and polishing of the flat straight knife to be completed on the same machine. However, this polishing head requires a separate polishing support to be installed and move along the bed to achieve polishing. Furthermore, the polishing head requires two polishing wheel sets to achieve polishing. Each polishing wheel set consists of multiple polishing wheels installed at intervals. The two polishing wheel sets are staggered, with one polishing wheel set rotatably supported on a swing adjustment plate. This swing adjustment plate also needs to be swing-adjusted to adjust its relative position with the other polishing wheel set. This makes the structure of the sharpening machine relatively complex, costly, and inconvenient to use and adjust. 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 straight knife grinding and polishing equipment, which can not only realize the grinding and polishing of flat straight knives, but also has a simple structure and is easy to use.

[0004] To solve the above-mentioned technical problems, this utility model provides a straight-blade grinding and polishing device, including a bed and a suction cup worktable arranged along the length of the bed. The suction cup worktable can rotate left and right to adjust the working position. A grinding head seat is movably supported on the bed via a horizontal guide rail pair. A grinding head is movably supported on the grinding head seat via a vertical guide rail pair and a grinding head slide. The grinding head is driven by a grinding head motor. A transverse slide is also provided at one end of the grinding head seat via a transverse guide rail pair. A polishing support is provided on the transverse slide via a polishing wheel lifting guide rail pair. A polishing motor is installed on the polishing support. The motor shaft of the polishing motor is vertically arranged. A polishing wheel is installed at the end of the motor shaft of the polishing motor. An inclined polishing surface is provided on the outer periphery of the upper end surface of the polishing wheel.

[0005] After adopting the above technical solution, the configured grinding head can perform grinding on the flat straight knife. When the table surface of the suction cup worktable is in a horizontal state, the grinding head grinds the side of the flat straight knife. When the suction cup worktable rotates to adjust the working position so that the beveled edge of the flat straight knife mounted on it is in a horizontal state, the grinding head can grind the beveled edge. After grinding, the set polishing wheel can polish the flat straight knife. At this time, the beveled edge of the flat straight knife can be in a horizontal state, that is, the suction cup worktable rotates at the same angle as when the beveled edge is ground. The lower side of the polishing wheel can polish the beveled edge of the flat straight knife, while the side that constitutes the cutting edge of the knife is polished by the inclined polishing surface on the outer periphery of the upper end face of the polishing wheel, thereby realizing the grinding and polishing of the flat straight knife. Furthermore, the polishing wheel is directly mounted on the vertically positioned motor shaft of the polishing motor, enabling polishing operations without the need for other components. Compared to the existing structures listed in the background art, the structure is greatly simplified. Simultaneously, the polishing support for the polishing motor is mounted on a transverse slide, which is mounted on the grinding head seat via a transverse guide rail. The grinding head seat drives the polishing wheel to move during the polishing process. Compared to the existing structures listed in the background art, this eliminates the need for the polishing support and the tool movement mechanism, further simplifying the structure. In addition, the polishing wheel can be adjusted up, down, left, and right via the transverse guide rail pair and the polishing wheel lifting guide rail pair, driven by corresponding drive mechanisms, eliminating the need for manual adjustment and making it extremely convenient to use.

[0006] In a preferred embodiment of this invention, an upper polishing wheel is installed above the primary polishing wheel. The upper polishing wheel has a rectangular cross-section, and its lower end face is in contact with the upper end face of the primary polishing wheel. With this embodiment, after the lower end face of the upper polishing wheel is in contact with the upper end face of the primary polishing wheel, the lower end face of the upper polishing wheel and the inclined polishing surface on the primary polishing wheel can simultaneously polish the inclined surface and the lower side of the blade forming the cutting edge of the flat straight knife. This allows for one-time polishing of both surfaces of the cutting edge, making it more convenient to use.

[0007] In another preferred embodiment of this invention, the upper polishing wheel is movably mounted on the motor shaft of the polishing motor along the axial direction of the polishing motor via a bushing, and a compression spring is installed between the bushing and the upper end face of the upper polishing wheel. With this embodiment, the lower end face of the upper polishing wheel can be kept in contact with the upper end face of the polishing wheel by the compression spring, ensuring that the polishing of both sides of the cutting edge can be completed smoothly in one pass.

[0008] In another preferred embodiment of this utility model, a polishing base is fixedly connected to one end of the grinding head seat, and the transverse guide rail pair consists of two linear guide rail pairs. The transverse slide is mounted on the polishing base via these two linear guide rail pairs. This embodiment ensures accurate transverse movement of the transverse slide and stable operation.

[0009] In a further preferred embodiment of this invention, the transverse slide is driven laterally by a transverse drive motor via a lead screw and nut pair located between the polishing base and the transverse slide. This embodiment provides high positional accuracy during lateral movement of the transverse slide, meeting the requirements for polishing the cutting edge of a flat, straight blade.

[0010] In another further preferred embodiment of this invention, the transverse drive motor is a servo motor or a stepper motor. This embodiment provides precise motion control of the servo motor or stepper motor, effectively meeting the accuracy requirements for the left and right displacement of the polishing wheel.

[0011] In another preferred embodiment of this invention, the polishing wheel lifting guide rail pair consists of two linear guide rail pairs, and the polishing support is mounted on the transverse slide table via these two linear guide rail pairs. This embodiment ensures the accuracy of the vertical movement of the polishing support and the stability of its working state.

[0012] In a further preferred embodiment of this invention, the polishing support is driven to move up and down by a polishing lifting motor via a lead screw and nut pair located between the transverse slide and the polishing support. This embodiment ensures high positional accuracy when the polishing support moves up and down vertically, meeting the requirements for polishing the cutting edge of a flat, straight blade.

[0013] In another further preferred embodiment of this invention, the polishing lifting motor is a servo motor or a stepper motor. With this embodiment, the motion control of the servo motor or stepper motor is precise, which can well meet the accuracy requirements for the vertical movement of the polishing wheel.

[0014] In another preferred embodiment of this invention, the diameter of the upper polishing wheel is greater than or equal to the diameter of the polishing disc. This embodiment ensures that the portion of the upper polishing disc opposite the inclined polishing surface has a corresponding width, satisfying the polishing requirements of the two surfaces constituting the cutting edge. Attached Figure Description

[0015] The present invention provides a further detailed description of the straight-blade grinding and polishing equipment in conjunction with the accompanying drawings and specific embodiments.

[0016] Figure 1 This is a schematic diagram of a specific embodiment of the straight-blade grinding and polishing equipment of this utility model;

[0017] Figure 2 yes Figure 1 Side view of the structure shown;

[0018] Figure 3 yes Figure 2 A partial enlarged view of the polishing wheel and related components in the structure shown.

[0019] In the diagram: 1-bed, 2-horizontal guide rail pair, 3-suction cup worktable, 4-grinding head, 5-grinding head slide, 6-grinding head seat, 7-polishing wheel, 8-inclined polishing surface, 9-upper polishing wheel, 10-compression spring, 11-sleeve, 12-transverse guide rail pair, 13-screw and nut pair, 14-polishing base, 15-transverse slide, 16-polishing motor, 17-polishing support, 18-polishing wheel lifting guide rail pair, 19-polishing lifting motor, 20-grinding head motor, 21-vertical guide rail pair, 22-transverse drive motor. Detailed Implementation

[0020] exist Figure 1 and Figure 2 In the straight-blade grinding and polishing equipment shown, the bed 1 is a rectangular frame component. Horizontal guide rail pairs 2 are provided on the top surfaces of both sides in the width direction of the bed 1. The horizontal guide rail pairs 2 can generally be linear guide rail pairs. The grinding head seat 6 is movably supported on the bed 1 via the horizontal guide rail pairs 2. The grinding head seat 6 is driven by a corresponding feed drive device to move along the length of the bed 1. The grinding head 4 is movably supported on the grinding head seat 6 via vertical guide rail pairs 21 and grinding head slide 5. The grinding head 4 is mounted on the motor shaft of the vertically arranged grinding head motor 20 and is driven by the grinding head motor 20. Okay, the grinding head motor 20 is mounted on the grinding head slide 5; a suction cup worktable 3 is provided below the two horizontal guide rail pairs 2 along the length of the bed 1. The suction cup worktable 3 is rotatably supported on the bed 1 and can be rotated left and right to adjust the working position. The blade-shaped straight knife to be ground and polished is adsorbed on the suction cup worktable 3. When the table surface of the suction cup worktable 3 is in a horizontal state, the side of the blade-shaped straight knife can be ground. When the suction cup worktable 3 is rotated at a certain angle so that the beveled edge of the blade-shaped straight knife is in a horizontal state, the beveled edge of the blade-shaped straight knife can be ground.

[0021] A polishing base 14 is fixedly connected to one end of the grinding head base 6. A transverse guide rail pair 15 and a lead screw and nut pair 13 are installed on the polishing base 14. The transverse guide rail pair 12 consists of two linear guide rail pairs. A transverse slide 15 is installed on the slider of the two linear guide rail pairs. Thus, a transverse slide 15 is provided on the grinding head base 6 through the polishing base 14 and the transverse guide rail pair 12. The transverse slide 15 is driven to move laterally by a transverse drive motor 22 through the lead screw and nut pair 13 located between the polishing base 14 and the transverse slide 15. The transverse drive motor 22 is preferably a servo motor or a stepper motor.

[0022] A polishing wheel lifting guide rail pair 18 and a lead screw and nut pair 13 are mounted on the transverse slide 15. The polishing wheel lifting guide rail pair 18 consists of two linear guide rail pairs, and a polishing support 17 is mounted on the slider of these two linear guide rail pairs. Thus, the polishing support 17 is provided on the transverse slide 15 via the polishing wheel lifting guide rail pair 18. The polishing support 17 is driven to move up and down by the polishing lifting motor 19 through the lead screw and nut pair 13 located between the transverse slide 15 and the polishing support 17. The polishing lifting motor 19 is preferably a servo motor or a stepper motor.

[0023] A polishing motor 16 is mounted on the polishing support 17. The motor shaft of the polishing motor 16 is vertically positioned. (See Figure 16 for details.) Figure 3 A polishing wheel 7 is fixedly mounted on the motor shaft end of the polishing motor 16 by a nut. An inclined polishing surface 8 is provided on the outer periphery of the upper end face of the polishing wheel 7. An upper polishing wheel 9 is also mounted above the polishing wheel 7. The upper polishing wheel 9 has a rectangular cross-section and its diameter is greater than or equal to the diameter of the polishing wheel 7. A bushing 11 is fixedly connected to the motor shaft end of the polishing motor 16. The upper polishing wheel 9 is movably sleeved on the bushing 11 by a guide key. In this way, the upper polishing wheel 9 is movably mounted on the motor shaft of the polishing motor 16 along the axial direction of the polishing motor 16. A compression spring 10 is installed between the bushing 11 and the upper end face of the upper polishing wheel 9. The compression spring 10 makes the lower end face of the upper polishing wheel 9 fit tightly against the upper end face of the polishing wheel 7.

[0024] After the blade-shaped straight knife is ground, the suction table 3 is kept in an inclined state, and the beveled edge of the blade-shaped straight knife is in a horizontal state. Driven by the polishing motor 16, the lower end face of the rotating upper polishing wheel 9 and the inclined polishing surface 8 on the polishing wheel 7 can polish the two sides of the blade-shaped straight knife simultaneously as shown in the figure. Of course, only the polishing wheel 7 can be installed on the polishing motor 16, and its lower end face and the inclined polishing surface 8 can be used to polish the two sides of the blade-shaped straight knife separately. The tool movement during the polishing process is realized by the tool drive mechanism of the grinding head seat 6 through the grinding head seat 6.

[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 straight-blade grinding and polishing device, comprising a bed (1) and a chuck table (3) arranged along the length of the bed (1), the chuck table (3) being able to rotate left and right to adjust the working position, a grinding head seat (6) being movably supported on the bed (1) via a horizontal guide rail pair (2), and a grinding head (4) being movably supported on the grinding head seat (6) via a vertical guide rail pair (21) and a grinding head slide (5), the grinding head (4) being driven by a grinding head motor (20), characterized in that: A transverse slide (15) is provided at one end of the grinding head seat (6) via a transverse guide rail pair (12). A polishing support (17) is provided on the transverse slide (15) via a polishing wheel lifting guide rail pair (18). A polishing motor (16) is installed on the polishing support (17). The motor shaft of the polishing motor (16) is vertically arranged. A polishing wheel (7) is installed at the end of the motor shaft of the polishing motor (16). An inclined polishing surface (8) is provided on the outer periphery of the upper end face of the polishing wheel (7).

2. The straight-trimmer grinding and polishing apparatus according to claim 1, characterized by: An upper polishing wheel (9) is also installed above the polishing wheel (7). The upper polishing wheel (9) has a rectangular cross-section, and the lower end face of the upper polishing wheel (9) is in contact with the upper end face of the polishing wheel (7).

3. The straight-trimmer grinding and polishing apparatus according to claim 2, characterized by: The upper polishing wheel (9) is movably mounted on the motor shaft of the polishing motor (16) along the axial direction of the polishing motor (16) via a bushing (11), and a compression spring (10) is installed between the bushing (11) and the upper end face of the upper polishing wheel (9).

4. The straight-blade grinding and polishing equipment according to claim 1, characterized in that: A polishing base (14) is fixedly connected to one end of the grinding head seat (6). The transverse guide rail pair (12) consists of two linear guide rail pairs. The transverse slide (15) is mounted on the polishing base (14) through these two linear guide rail pairs.

5. The straight blade grinding and polishing apparatus according to claim 1 or 4, characterized by: The transverse slide (15) is driven to move laterally by a transverse drive motor (22) through a screw and nut pair (13) located between the polishing base (14) and the transverse slide (15).

6. The straight-trimmer grinding and polishing apparatus according to claim 5, characterized by: The transverse drive motor (22) is a servo motor or a stepper motor.

7. The straight-trimmer grinding and polishing apparatus according to claim 1, characterized by: The polishing wheel lifting guide rail pair (18) consists of two linear guide rail pairs, and the polishing support (17) is installed on the transverse slide table (15) through these two linear guide rail pairs.

8. The straight blade grinding and polishing apparatus according to claim 1 or 7, characterized by: The polishing support (17) is driven to move up and down by the polishing lifting motor (19) through the screw nut pair (13) located between the transverse slide (15) and the polishing support (17).

9. The straight-trimmer grinding and polishing apparatus according to claim 8, characterized by: The polishing lifting motor (19) is a servo motor or a stepper motor.

10. The straight-trimmer grinding and polishing apparatus according to claim 2, characterized by: The diameter of the upper polishing wheel (9) is greater than or equal to the diameter of the polishing wheel (7).

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