CN209970453U - An improved CNC grinding head for glass cover - Google Patents

Abstract

The utility model discloses an improved CNC grinding head for glass cover plate, which comprises a first coarse sand section, a first fine sand section, a second coarse sand section and a second fine sand section, wherein the first coarse sand section comprises a first coarse sand head part and a first coarse sand cylindrical part which are integrally formed, the first fine sand section comprises a first fine sand ridge part, a first fine sand cylindrical part, a first fine sand circular table part and a second fine sand circular table part which are integrally formed, the second coarse sand section comprises a second coarse sand cylindrical part and a second coarse sand circular table part which are integrally formed, the utility model adds a concave drilling fine trimming groove on the first fine sand section of the grinding head, can directly perform hole chamfering through the drilling fine trimming groove after drilling is completed, does not need to reposition, improves the efficiency, the product quality and the processing efficiency, and can simultaneously realize the functions of drilling, hole trimming, appearance fine trimming and rough trimming, the machining efficiency of the CNC grinding head and the manufacturing yield of the glass cover plate to be machined can be effectively improved.

Description

An improved CNC grinding head for glass cover

technical field

The utility model relates to the field of punching equipment for glass cover plates, in particular to an improved CNC grinding head for glass cover plates.

Background technique

The glass cover plate needs to be punched and formed by the first fine sand section of the grinding head during production. After punching, the upper and lower sides of the hole need to be chamfered. The existing CNC grinding head is difficult to carry out rough repair and through hole at the same time. Hole finishing, contour finishing and rough contour trimming need to be replaced with different tools for step-by-step processing. During the process of changing the tool for the same product multiple times, the tool swings greatly, which is prone to chipping and poor sanding. Each time the tool is changed , both the tool and the cover glass need to be repositioned, which reduces the processing accuracy and productivity efficiency of the cover glass. The use of multiple tools also causes waste of resources and increases processing costs, and the original grinding head needs to be punched and chamfered. If it is carried out separately, the position of the hole needs to be repositioned, which is prone to deviation and low production efficiency.

Utility model content

The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide an improved CNC grinding head for glass cover plates.

In order to solve the above-mentioned technical problems, the utility model provides the following technical solutions:

An improved CNC grinding head for a glass cover plate of the present invention comprises a first coarse sand section, a first fine sand section, a second coarse sand section and a second fine sand section, wherein the first coarse sand section comprises an integrated The first coarse sand head and the first coarse sand cylindrical portion are formed by forming, and the first fine sand section includes the first fine sand grain ridge, the first fine sand cylindrical portion, and the first fine sand truncated portion that are integrally formed. , the first fine sand grain valley portion and the second fine sand grain ridge portion, the second coarse sand segment includes a second coarse sand cylindrical portion and a second coarse sand circular truncated portion that are integrally formed, and the second fine sand segment It includes a third fine sand grain ridge, a second fine sand grain valley and a fourth fine sand grain ridge which are integrally formed, and one end of the first coarse sand section close to the first fine sand section is provided with a drilling finishing groove.

As a preferred technical solution of the present invention, one end of the second fine sand section away from the second coarse sand section is integrally formed with a knife handle.

As a preferred technical solution of the present invention, the diameter of the first fine sand cylindrical portion is 2.8-3.2 mm, and the diameter of the first fine sand grain valley portion is 8.82-9.20 mm.

As a preferred technical solution of the present invention, the second fine sand grain valley portion is cylindrical, and the diameter of the second fine sand grain valley portion is 23.8-24.02 mm.

As a preferred technical solution of the present invention, the sand grains of the grinding head have a regular hexagonal structure.

As a preferred technical solution of the present invention, the sand grain size of the first coarse sand section and the second coarse sand section is 400 mesh, and the sand grain size of the first fine sand section and the second fine sand section is 800 mesh .

The beneficial effects achieved by the utility model are:

1. In the present invention, a concave drilling finishing groove is added to the first fine sand section of the grinding head. After drilling, the hole can be chamfered directly through the drilling finishing groove without repositioning, which improves the efficiency and product quality. and processing efficiency, the CNC grinding head can simultaneously realize the functions of drilling, hole repairing, camber roughing, camber finishing, shape finishing and shape roughing, which can effectively improve the processing efficiency of the CNC grinding head and the workpiece to be processed. The manufacturing yield of cover glass.

2. The original grinding head cannot realize double-sided chamfering for some products processed by the earpiece hole. The new grinding head reduces the diameter of the processing part of the hearing hole, and can realize double-sided chamfering. The original grinding head is designed in sections and completed separately. Processing, the newly designed grinding head combines forming and chamfering into one. The original grinding head has a grain size of 400/800 mesh and a rhombus structure. The newly designed grinding head has a sand grain size of 400/1000 mesh and a regular hexagon. Through the improvement of head sand particle size, sand structure and segment design, the punching efficiency and punching quality of the current grinding head are improved.

Description of drawings

The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the specification, and are used to explain the present invention together with the embodiments of the present invention, and do not constitute a limitation to the present invention. In the attached image:

Fig. 1 is a schematic diagram of the original grinding head structure;

Fig. 2 is the grinding head structure schematic diagram of the present utility model;

3 is a schematic view of the structure of the grinding head without a handle of the present invention;

Figure 4 is a schematic diagram of the shape and structure of the original grinding head;

FIG. 5 is a schematic view of the shape and structure of the grinding head of the present invention.

In the figure: 1, the first coarse sand section; 11, the first coarse sand head; 12, the first coarse sand cylindrical part; 2, the first fine sand section; 21, the first fine sand grain ridge; 22, the first 1. Fine sand cylindrical part; 23. The first fine sand circular truncated part; 24, The first fine sand grain valley; 25, The second fine sand grain ridge; 3, The second coarse sand section; 31, The second coarse sand cylinder part; 32, the second coarse sand cone; 4, the second fine sand section; 41, the third fine sand grain ridge; 42, the second fine sand grain valley; 43, the fourth fine sand grain ridge; 5 , Shank; 13. Drilling and finishing grooves.

Detailed ways

The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present utility model, but not to limit the present utility model.

Example 1

As shown in Figure 1-5, an improved CNC grinding head for glass cover plate includes a first coarse sand section 1, a first fine sand section 2, a second coarse sand section 3 and a second fine sand section 4. A coarse sand section 1 includes a first coarse sand head 11 and a first coarse sand cylindrical section 12 that are integrally formed, and the first fine sand section 2 includes a first fine sand grain ridge 21 and a first fine sand that are integrally formed. The cylindrical portion 22 , the first fine sand circular truncated portion 23 , the first fine sand grain valley portion 24 and the second fine sand grain ridge portion 25 , and the second coarse sand section 3 includes a second coarse sand cylindrical portion 31 and a The second coarse sand circular truncated portion 32, the second fine sand section 4 includes the third fine sand grain ridge portion 41, the second fine sand grain valley portion 42 and the fourth fine sand grain ridge 43, which are integrally formed, and the first fine sand section 4. 1. One end near the first fine sand section 2 is provided with a drilled finishing groove 13. The sand grains of the grinding head have a regular hexagonal structure. The sand grain size of the first coarse sand section 1 and the second coarse sand section 3 is 400 mesh, and the sand grain size of the first fine sand section 2 and the second fine sand section 4 is 800 mesh.

One end of the second fine sand section 4 away from the second coarse sand section is integrally formed with a shank 5, the diameter of the first fine sand cylindrical portion 22 is 2.8-3.2 mm, and the diameter of the first fine sand grain valley portion 24 is 8.82~ 9.20 mm, the second fine sand grain valley portion 42 is cylindrical, and the diameter of the second fine grain grain valley portion 42 is 23.8-24.02 mm.

Working principle: the first coarse sand section 1, the first fine sand section 2, the second coarse sand section 3 and the second fine sand section 4, the first coarse sand section 1, blind holes and through holes can be processed on the cover glass. The first fine sand section 2 can fine-tune the through holes, the second coarse sand section 3 can rough repair the through holes, and the second fine sand section 4 can fine-tune the arc holes. Surface finishing and shape finishing can also be used for chamfer finishing on the edge of the glass cover to be processed. By adding a concave drilling finishing groove 13 in the first fine sand section of the grinding head, after drilling The hole can be chamfered directly by drilling the finishing groove 13 without repositioning, which improves the efficiency, product quality and processing efficiency. The original grinding head cannot realize double-sided chamfering for some products processed by the earpiece hole, and the new grinding head reduces the processing part of the earpiece hole. Diameter, double-sided chamfering can be realized. The original grinding head forming and chamfering parts are segmented design, and the processing is completed separately. The newly designed grinding head combines forming and chamfering into one, and the original grinding head has a sand particle size of 400/800. Mesh, the sand grain is rhombic structure, the newly designed grinding head sand grain size is 400/1000 mesh, and the sand grain is regular hexagonal structure. Hole efficiency and punch quality.

Finally, it should be noted that the above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. , it is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements to some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (6)

1. An improved CNC grinding head for a glass cover plate, characterized in that it comprises a first coarse sand section (1), a first fine sand section (2), a second coarse sand section (3) and a second fine sand section Section (4), the first coarse sand section (1) includes a first coarse sand head (11) and a first coarse sand cylindrical section (12) that are integrally formed, and the first fine sand section (2) It includes a first fine sand grain ridge portion (21), a first fine sand cylindrical portion (22), a first fine sand circular table portion (23), a first fine sand grain valley portion (24) and a second fine sand grain valley portion (24), which are integrally formed. A sand grain ridge (25), the second coarse sand section (3) includes a second coarse sand cylindrical section (31) and a second coarse sand circular truncated section (32) that are integrally formed, and the second fine sand section (4) comprising a third fine sand grain ridge (41), a second fine sand grain valley (42) and a fourth fine sand grain ridge (43) that are integrally formed, the first coarse sand section (1) ) close to one end of the first fine sand section (2) is provided with a drilled finishing groove (13). 2. An improved CNC grinding head for glass cover plate according to claim 1, characterized in that, one end of the second fine sand section (4) away from the second coarse sand section is integrally formed with a shank ( 5). 3 . The improved CNC grinding head for glass cover plate according to claim 1 , wherein the diameter of the first fine sand cylindrical portion ( 22 ) is 2.8-3.2 mm, and the first fine sand The diameter of the groove portion (24) is 8.82 to 9.20 mm. 4 . The improved CNC grinding head for glass cover plate according to claim 1 , wherein the second fine sand grain valley portion ( 42 ) is cylindrical, and the second fine grain grain valley portion is 4 . The diameter of (42) is 23.8 to 24.02 mm. 5 . The improved CNC grinding head for a glass cover plate according to claim 1 , wherein the sand grains of the grinding head have a regular hexagonal structure. 6 . 6 . The improved CNC grinding head for glass cover plate according to claim 1 , wherein the grit size of the first coarse sand section (1) and the second coarse sand section (3) is 400 meshes. 7 . , the sand particle size of the first fine sand section (2) and the second fine sand section (4) is 800 meshes.

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