Auxiliary positioning device for multi-corner-angle nicking tool polishing

Abstract

The utility model discloses an auxiliary positioning device for polishing a multi-corner-angle nicking tool, and belongs to the technical field of nicking tool machining tools. The auxiliary positioning device is scientific and reasonable in structural design, when the multi-corner-angle nicking tool is polished, the tail of the nicking tool rod is fixed to the chuck, the outer angle limiting plate is fixedly placed on the horizontal plane, the inner angle adjusting plate is pushed out of the regular polygon inner hole through the handle and then rotated by a certain angle, and the nicking tool rod is fixed to the chuck. The inner angle adjusting plate is inserted into the regular polygonal inner hole, so that the graver rod can be rotated and limited again, a tool bit of the graver rod can be conveniently polished at different angles by a grinding knife, multi-edge polishing of the tool bit is realized, and the accuracy of each tool face angle is ensured; and meanwhile, by replacing the inner angle adjusting plates with different edge numbers, multi-edge-angle nicking tools of different models can be polished, practicability is high, and operation is convenient.

Description

Technical Field

[0001] This utility model relates to the field of engraving tooling technology, specifically an auxiliary positioning device for grinding multi-faceted engraving tools. Background Technology

[0002] A seal is a stationery item used to mark documents for authentication or signature. Generally, seals are first dipped in ink before being stamped. Seals that are not dipped in ink and leave an embossed effect on a flat surface are called steel seals. Some are stamped on wax or sealing wax, such as wax seals on envelopes.

[0003] Currently, seal making still retains the traditional hand-carving tradition. When carving seals, various types of tools are needed, such as carving knives, sharpening knives, and auxiliary carving knives. Carvers need to frequently change tools for carving, polishing, and other operations, which is inconvenient.

[0004] Meanwhile, carving knives for stone are relatively blunt and cannot be used to carve wood, bone, leather, or other similar materials. Very sharp knives are required for carving. Therefore, the existing tools used for carving seals and other engravings are used separately and are not interchangeable.

[0005] To address the aforementioned issues, the applicant previously filed a utility model patent entitled "A Multi-faceted, Multi-grinding Knife for Seal Engraving and Carving," with application number CN202322206358.7. This multi-faceted carving knife integrates a main carving blade, an auxiliary carving blade, and a grinding surface into one unit, achieving dual functionality. It can be used for both seal engraving and carving of other products such as wood, jade, and leather goods.

[0006] Due to the multi-faceted design of the aforementioned engraving tool, each blade surface needs to be precisely ground during processing to ensure the accuracy of the angles of each surface. Therefore, the applicant designed and developed an auxiliary positioning device for grinding multi-faceted engraving tools. This device not only fixes the engraving tool shank but also accurately adjusts the rotation angle of the shank, ensuring the accuracy of the angles of each blade surface. The design is scientific and reasonable, and the operation is convenient. Utility Model Content

[0007] The purpose of this invention is to provide an auxiliary positioning device for grinding multi-faceted engraving tools, so as to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] An auxiliary positioning device for grinding multi-faceted engraving tools includes a chuck for holding the engraving tool handle. A fixing head is fixedly connected to the tail of the chuck, and a handle is fixedly connected to the tail of the fixing head. An inner angle adjusting plate is fixedly mounted on the fixing head. The inner angle adjusting plate is a regular polygonal plate. The device also includes an outer angle limiting plate sleeved on the outside of the inner angle adjusting plate. The outer angle limiting plate has a regular polygonal inner hole in its middle that corresponds to the shape of the inner angle adjusting plate. The inner angle adjusting plate is inserted into the regular polygonal inner hole.

[0010] As a further preferred embodiment of this utility model: a positioning rod is fixedly provided on the front side of the fixing head, and a threaded head is fixedly provided on the front side of the positioning rod. The outer diameter of the fixing head, the positioning rod, and the threaded head decreases sequentially. A threaded hole is opened at the tail of the chuck, and the threaded head is located in the threaded hole and threadedly connected to the threaded hole. The inner angle adjustment plate is fixedly sleeved on the positioning rod, and the inner angle adjustment plate is fixedly clamped between the chuck and the fixing head.

[0011] As a further preferred embodiment of this utility model: the outer angle limiting plate is provided with a fastening bolt hole that communicates with the inner hole of the regular polygon, and the fastening bolt hole is internally threaded with an internal hexagon bolt, which can contact the inner angle adjusting plate.

[0012] As a further preferred embodiment of this utility model: the positioning rod is a square rod, and the inner angle adjustment plate has a square through hole in the middle corresponding to the positioning rod.

[0013] As a further preferred embodiment of this utility model: the positioning rod is a circular rod, and the inner angle adjustment plate has a circular through hole in the middle corresponding to the positioning rod.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This auxiliary positioning device features a scientifically designed structure. When grinding multi-faceted engraving tools, the tail of the engraving tool shank is fixed to the chuck. The outer angle limiting plate is fixed on a horizontal surface. The inner angle adjusting plate is pushed out of the regular polygonal inner hole using the handle and rotated a certain angle. Then, the inner angle adjusting plate is inserted into the regular polygonal inner hole, allowing the engraving tool shank to rotate and be repositioned. This facilitates grinding the engraving tool head at different angles, enabling multi-faceted grinding of the head and ensuring the accuracy of the angles of each blade surface. Furthermore, by replacing the inner angle adjusting plate with different numbers of sides, different models of multi-faceted engraving tools can be ground, making it highly practical and easy to operate. Attached Figure Description

[0016] Figure 1 This is a cross-sectional view of the auxiliary positioning device for grinding multi-faceted engraving tools according to this utility model;

[0017] Figure 2 This is an exploded structural diagram of the auxiliary positioning device for grinding multi-faceted engraving tools according to this utility model;

[0018] Figure 3 A three-dimensional structural diagram of the auxiliary positioning device for grinding multi-faceted engraving tools according to this utility model. Figure 1 ;

[0019] Figure 4 A three-dimensional structural diagram of the auxiliary positioning device for grinding multi-faceted engraving tools according to this utility model. Figure 2 .

[0020] In the diagram: 1. Chuck; 2. Cutter rod; 3. Threaded hole; 4. Inner angle adjustment plate; 5. Fixing head; 6. Outer angle limiting plate; 7. Positioning rod; 8. Threaded head; 9. Fastening bolt hole; 10. Hex socket head cap screw; 11. Handle; 12. Through hole; 13. Regular polygonal inner hole. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0022] Please see Figure 1-4 This embodiment provides an auxiliary positioning device for grinding multi-faceted engraving tools, including a chuck 1 for clamping the engraving tool rod 2. The chuck 1 is a conventional chuck structure familiar to those skilled in the art, preferably an existing three-jaw chuck, which is a conventional and universal structure, and will not be described or limited further in this application. A fixing head 5 is fixedly connected to the tail of the chuck 1, and a handle 11 is fixedly connected to the tail of the fixing head 5. An inner angle adjusting plate 4 is fixedly fitted on the fixing head 5. The inner angle adjusting plate 4 is a regular polygonal plate, and an outer angle limiting plate 6 is sleeved on the outside of the inner angle adjusting plate 4. A regular polygonal inner hole 13 corresponding to the shape of the inner angle adjusting plate 4 is opened in the middle of the outer angle limiting plate 6, and the inner angle adjusting plate 4 is inserted into the regular polygonal inner hole 13. Preferably, the number of sides of the inner angle adjusting plate 4 should be a conventional design choice familiar to those skilled in the art, and should be determined according to the number of edges of the engraving blade head to be processed. Different numbers of edges correspond to different numbers of blade faces, angles, and edge angles. In this application, the inner angle adjusting plate 4 is preferably a regular octagonal plate, therefore, the regular polygonal inner hole 13 is also a regular octagonal inner hole. At the same time, in order to ensure that the outer angle limiting plate 6 is easy to place and fix, the outer angle limiting plate 6 is preferably designed as a square plate.

[0023] Meanwhile, to ensure the stability of the inner angle limiting plate 6 within the regular polygonal inner hole 13 and to prevent the inner angle limiting plate 6 from slipping out of the regular polygonal inner hole 13 due to vibration during grinding, a fastening bolt hole 9 communicating with the regular polygonal inner hole 13 is provided on the outer angle limiting plate 6. An internal hexagonal bolt 10 is threaded into the fastening bolt hole 9, and the internal hexagonal bolt 10 can contact the inner angle adjusting plate 4.

[0024] Furthermore, in order to connect the fixed head 5 to the clamp 1, and to connect the inner angle adjustment plate 4 to the fixed head 5, as follows: Figure 1-2 As shown. A positioning rod 7 is fixedly installed on the front side of the fixed head 5, and a threaded head 8 is fixedly installed on the front side of the positioning rod 7. As is common knowledge to those skilled in the art, in order to achieve assembly, the outer diameters of the fixed head 5, the positioning rod 7, and the threaded head 8 should decrease sequentially. As a conventional and common configuration of existing three-jaw chucks, a threaded hole 3 is opened at the tail of the chuck 1, and the threaded head 8 is located in the threaded hole 3 and threadedly connected to the threaded hole 3. The inner angle adjusting plate 4 is fixedly sleeved on the positioning rod 7, and the inner angle adjusting plate 4 is fixedly clamped between the chuck 1 and the fixed head 5.

[0025] It should be noted that, as a conventional setting familiar to those skilled in the art, the positioning rod 7 can be either a square rod or a round rod.

[0026] When the positioning rod 7 is a square rod, a square through hole 12 corresponding to the positioning rod 7 is opened in the middle of the inner angle adjustment plate 4, and the state is as follows. Figure 2 As shown, the square design can better ensure the stability of the inner angle adjustment plate 4 on the positioning rod 7, and will not easily cause rotation problems.

[0027] When the positioning rod 7 is circular, a circular through hole 12 corresponding to the positioning rod 7 is provided in the middle of the inner angle adjusting plate 4. It should be noted that, as is common knowledge familiar to those skilled in the art, to ensure the stability of the inner angle adjusting plate 4 on the positioning rod 7, the positioning rod 7 and the through hole 12 should fit tightly together. Furthermore, after tightening the fixing head 5 and the clamp 1, the inner angle adjusting plate 4 should also be tightly clamped between the fixing head 5 and the clamp 1 to prevent the inner angle adjusting plate 4 from rotating on the positioning rod 7 due to vibrations generated during grinding. Those skilled in the art only need to design the corresponding dimensions during processing; this is a conventional design familiar to those skilled in the art, and this application will not elaborate further.

[0028] In actual operation, the device is first assembled. The actual assembly steps are as follows:

[0029] The inner angle adjusting plate 4 is fitted onto the positioning rod 7, and then the threaded head 8 is screwed into the threaded hole 3 of the chuck 1. After tightening, the fixing head 5 and the chuck 1 are fixedly connected, and the inner angle adjusting plate 4 is fixed. Then, the outer angle limiting plate 6 is inserted from the tail of the handle 11 and fitted onto the inner angle adjusting plate 4. The hexagonal bolts 10 on the outer angle limiting plate 6 are tightened by a hexagonal wrench to fix the outer angle limiting plate 6 and the inner angle adjusting plate 4. The assembly of the device is then completed.

[0030] During actual grinding, insert the engraving tool 2 to be ground into the front end of the chuck 1, and tighten the three chuck bolts at the front end of the chuck 1 to clamp and fix the engraving tool 2. The above operation is a conventional operation technique of existing three-jaw chucks, and this application will not elaborate further. By holding the handle 11 and the chuck 1 or the outer angle limiting plate 6, bring the cutting head of the engraving tool 2 close to the grinding tool, and press the outer angle limiting plate 6 onto the horizontal worktable to prevent tilting, then grind the engraving tool 2. When it is necessary to grind other cutting surfaces of the cutting head, loosen the hex socket bolt 10, push the inner angle adjusting plate 4 out of the regular polygonal inner hole 13 through the handle 11, rotate the inner angle adjusting plate 4 and the engraving tool 2 at a certain angle as needed, and then insert the inner angle adjusting plate 4 into the regular polygonal inner hole 13. At this time, it should be ensured that the outer angle limiting plate 6 does not rotate on the table. Tighten the hex socket bolt 10 again, and then grind the other cutting surfaces of the engraving tool 2 with the grinding tool.

[0031] It should be noted that the above embodiments are only specific and clear descriptions of the technical solutions and features of this application. Solutions or features that are prior art or common knowledge to those skilled in the art will not be described in detail in the above embodiments.

[0032] Furthermore, the technical solutions of this application are not limited to the above embodiments. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. An auxiliary positioning device for grinding multi-faceted engraving tools, characterized in that, The device includes a chuck (1) for holding the engraving tool rod (2), a fixed head (5) is fixedly connected to the tail of the chuck (1), a handle (11) is fixedly connected to the tail of the fixed head (5), an inner angle adjustment plate (4) is fixedly fitted on the fixed head (5), the inner angle adjustment plate (4) is a regular polygonal plate, and an outer angle limiting plate (6) is sleeved on the outside of the inner angle adjustment plate (4). The outer angle limiting plate (6) has a regular polygonal inner hole (13) in the middle that corresponds to the shape of the inner angle adjustment plate (4), and the inner angle adjustment plate (4) is inserted into the regular polygonal inner hole (13).

2. The auxiliary positioning device for grinding multi-faceted engraving tools according to claim 1, characterized in that, A positioning rod (7) is fixedly provided on the front side of the fixed head (5), and a threaded head (8) is fixedly provided on the front side of the positioning rod (7). The outer diameter of the fixed head (5), the positioning rod (7) and the threaded head (8) decreases in sequence. A threaded hole (3) is opened at the tail of the chuck (1). The threaded head (8) is located in the threaded hole (3) and is threadedly connected to the threaded hole (3). The inner angle adjustment plate (4) is fixedly sleeved on the positioning rod (7) and is fixedly clamped between the chuck (1) and the fixed head (5).

3. The auxiliary positioning device for grinding multi-faceted engraving tools according to claim 1, characterized in that, The outer angle limiting plate (6) has a fastening bolt hole (9) that communicates with the inner hole (13) of the regular polygon. The fastening bolt hole (9) is internally threaded with an internal hexagon bolt (10), which can contact the inner angle adjusting plate (4).

4. The auxiliary positioning device for grinding multi-faceted engraving tools according to claim 2, characterized in that, The positioning rod (7) is a square rod, and the inner angle adjustment plate (4) has a square through hole (12) in the middle that corresponds to the positioning rod (7).

5. The auxiliary positioning device for grinding multi-faceted engraving tools according to claim 2, characterized in that, The positioning rod (7) is a circular rod, and the inner angle adjustment plate (4) has a circular through hole (12) in the middle that corresponds to the positioning rod (7).

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