Composite type glass drill bit

Abstract

The utility model provides a composite type glass drill bit which is used for cutting a side hole of glass and comprises a handle portion, a cutting portion and a chamfering portion, the handle portion is sequentially connected with the cutting portion and the chamfering portion and used for being connected with power equipment to drive the cutting portion and the chamfering portion to rotate, and the cutting portion is used for cutting the side hole in the side edge of the glass. The chamfering part comprises an upper chamfering table, a lower shaft body and a lower chamfering table, the cutting part is sequentially connected with the upper chamfering table, the lower shaft body and the lower chamfering table, the upper chamfering table is used for chamfering the upper edge of the side hole, and the lower chamfering table is used for chamfering the lower edge of the side hole. Therefore, the two sides of the side hole can be chamfered without turning over the glass, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to glass hole forming technical field, especially a kind of composite glass drill bit. BACKGROUND

[0002] Glass doors or windows need to install some hardware fittings, such as door locks, handles, hinges, hanging parts, etc., and side holes are necessary steps for installing these fittings. For example, the installation of door locks requires side holes in the glass door to insert the lock body and fix it. Glass is a brittle material, and if the edge of the side hole is too sharp, it will cause local stress concentration and easily lead to breakage or fragmentation during use. By chamfering, the edge of the side hole will become smoother, reducing stress concentration points and thus reducing the risk of breakage.

[0003] Chinese patent document CN200820024353.5 discloses that a circular table is set to drill holes and process the drilled holes into chamfered holes at the same time, improving efficiency. However, the above-mentioned set circular table can only chamfer the edge of one side of the side hole at a time, and when chamfering the edge of the other side is needed, the glass needs to be turned over to chamfer the edge of the other side of the side hole, which affects efficiency. SUMMARY

[0004] Therefore, the utility model aims to provide a composite glass drill bit to solve the problem that the set circular table in the prior art can only chamfer the edge of one side of the side hole at a time, and when chamfering the edge of the other side is needed, the glass needs to be turned over to chamfer the edge of the other side of the side hole, which affects efficiency.

[0005] The utility model provides a kind of composite glass drill bit, for cutting the side hole of glass, including handle, cutting part and chamfering part, the handle is connected in turn the cutting part and the chamfering part, the handle is used to be connected with the connecting power equipment to drive the cutting part and the chamfering part rotate, the cutting part is used to cut out side hole in the side edge of glass, the chamfering part includes upper chamfering table, lower shaft body and lower chamfering table, the cutting part is connected in turn the upper chamfering table, the lower shaft body and the lower chamfering table, the upper chamfering table is used to chamfer the upper edge of the side hole, and the lower chamfering table is used to chamfer the lower edge of the side hole.

[0006] Further, the upper chamfering table includes upper reinforcing ring and upper circular table, the lower chamfering table includes lower reinforcing ring and lower circular table, the cutting part is connected in turn the upper reinforcing ring, the upper circular table, the lower shaft body, the lower reinforcing ring and the lower circular table, the upper circular table is equipped with upper grinding surface for chamfering the upper edge of the side hole, and the lower circular table is equipped with lower grinding surface for chamfering the upper edge of the side hole.

[0007] Further, the upper grinding surface and the lower grinding surface are both inclined surfaces.

[0008] Further, the upper grinding surface and the lower grinding surface are both curved surfaces.

[0009] Further, the cutting portion comprises an upper shaft body, cutting edges and a reinforcing ring, the cutting edges are provided in plurality, the plurality of cutting edges are uniformly spaced on the circumferential side wall of the upper shaft body, a guide groove is formed between adjacent two cutting edges for allowing chip to flow out, one end of the upper shaft body and the plurality of cutting edges are connected with the handle portion, and the other end thereof is connected with the chamfering portion.

[0010] Further, the handle portion is provided with a water inlet channel, the reinforcing ring is provided with a water outlet channel in communication with the water inlet channel, and the water outlet channel corresponds to the guide groove.

[0011] Further, the handle portion is provided with external threads, and the handle portion is connected with the power equipment through the external threads.

[0012] Beneficial effects: the utility model provides a composite glass drill bit for cutting the side hole of glass, including handle portion, cutting portion and chamfering portion, handle portion connects cutting portion and chamfering portion in proper order, handle portion is used for connecting with the connection power equipment to drive cutting portion and chamfering portion to rotate, cutting portion is used for cutting the side hole on the side of glass, chamfering portion includes upper chamfering platform, lower shaft body and lower chamfering platform, cutting portion connects upper chamfering platform, lower shaft body and lower chamfering platform in proper order, upper chamfering platform is used for chamfering the upper edge of side hole, and lower chamfering platform is used for chamfering the lower edge of side hole, therefore, the two sides of side hole can be chamfered without turning over glass in the application, and the production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 it is structure schematic diagram of the utility model composite glass drill bit;

[0014] Fig. 2 it is structure schematic diagram of another view of the utility model composite glass drill bit;

[0015] Fig. 3 it is effect picture after cutting glass of the utility model composite glass drill bit.

[0016] In the drawing: 1, handle portion;11, water inlet channel;12, external thread;2, cutting portion;21, upper shaft body;22, cutting edge;23, reinforcing ring;24, guide groove;231, water outlet channel;3, chamfering portion;31, upper chamfering platform;311, upper reinforcing ring;312, upper circular platform;313, upper grinding surface;32, lower shaft body;33, lower chamfering platform;331, lower reinforcing ring;332, lower circular platform;333, lower grinding surface;4, glass;5, side hole. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor fall within the scope of protection of the utility model.

[0018] Please refer to Figs. 1 to 3 The utility model provides a kind of composite glass drill bit for cutting the side hole 5 of glass 4, including handle 1, cutting part 2 and chamfering part 3, the handle 1 is sequentially connected the cutting part 2 and the chamfering part 3, the handle 1 is used to be connected with the connecting power equipment to drive the cutting part 2 and the chamfering part 3 rotation, the cutting part 2 is used to cut out side hole 5 in the side edge of glass 4, the chamfering part 3 includes upper chamfering platform 31, lower shaft body 32 and lower chamfering platform 33, the cutting part 2 is sequentially connected the upper chamfering platform 31, the lower shaft body 32 and the lower chamfering platform 33, the upper chamfering platform 31 is used to chamfer the upper edge of the side hole 5, and the lower chamfering platform 33 is used to chamfer the lower edge of the side hole 5.

[0019] In order to improve the wear resistance of cutting part 2 and chamfering part 3, cutting part 2 and chamfering part 3 have multiple diamond layers, so that cutting part 2 and chamfering part 3 can carry out drilling operation for a long time, prolong the service life. Power equipment is commonly used numerical control glass 4 cutting machine in mechanical field, so it is not repeated here. In the present application, when composite glass drill bit is used to punch glass 4, it is driven by power equipment, and cutting part 2 is moved to the position corresponding to the edge of glass 4 by up-down translation control. Cutting part 2 rotates and moves horizontally along the extension direction of the edge of glass 4. Cutting part 2 first contacts the side edge of glass 4, and cutting part 2 translates in horizontal direction along the preset route, and side hole 5 is gradually cut out. After the size of side hole 5 is preliminarily determined, upper chamfering part 3 is moved to the position corresponding to the upper edge of the side hole 5 by up-down translation control, chamfering part 3 contacts the upper edge of the side hole 5, chamfering part 3 translates in horizontal direction along the preset route, and the upper edge of the side hole 5 is chamfered gradually. Similarly, lower chamfering part 3 is moved to the position corresponding to the lower edge of the side hole 5 by up-down translation control, chamfering part 3 contacts the lower edge of the side hole 5, chamfering part 3 translates in horizontal direction along the preset route, and the lower edge of the side hole 5 is chamfered gradually. The present application completes the work of cutting hole and chamfering upper and lower edges at one time, without turning over glass 4, and improves work efficiency.

[0020] In an embodiment, the upper chamfering table 31 comprises an upper reinforcing ring 311 and an upper circular table 312, the lower chamfering table 33 comprises a lower reinforcing ring 331 and a lower circular table 332, the cutting part 2 is connected to the upper reinforcing ring 311, the upper circular table 312, the lower shaft body 32, the lower reinforcing ring 331 and the lower circular table 332 in sequence, the upper circular table 312 is provided with an upper grinding surface 313 for chamfering the upper edge of the side hole 5, and the lower circular table 332 is provided with a lower grinding surface 333 for chamfering the upper edge of the side hole 5. In this embodiment, the upper reinforcing ring 311 and the lower reinforcing ring 23 can enhance the structural strength of the drill bit, prevent deformation or damage under high load working conditions, effectively prevent the drill bit from falling off or being damaged too early, and maintain the stability and durability of the drill bit when the upper grinding surface 313 or the lower grinding surface 333 bears a large alternating load. The lower shaft body 32 provides space for the upper grinding surface 313 and the lower grinding surface 333 to grind the edges of the glass 4.

[0021] In an embodiment, the upper grinding surface 313 and the lower grinding surface 333 are both inclined surfaces. This embodiment is suitable for application scenarios where the chamfer is flat.

[0022] In an embodiment, the upper grinding surface 313 and the lower grinding surface 333 are both curved surfaces. This embodiment is suitable for application scenarios where the chamfer is curved.

[0023] In an embodiment, the cutting part 2 comprises an upper shaft body 21, a cutting edge 22 and a reinforcing ring 23, the cutting edge 22 is provided with a plurality of cutting edges 22 which are uniformly spaced on the peripheral sidewall of the upper shaft body 21, a guide groove 24 is formed between adjacent two cutting edges 22 for guiding the cutting chips, one end of the upper shaft body 21 and the plurality of cutting edges 22 is connected to the handle part 1, and the other end is connected to the chamfering part 3. During drilling, the generated cutting chips are guided out through the guide groove 24, preventing the accumulation of cutting chips from affecting the drilling quality. In addition, the design of the guide groove 24 helps the flow of cooling liquid, reduces the overheating of the drill bit, and improves the cutting efficiency. Preferably, the cutting edge 22 is spiral-shaped, and correspondingly, the guide groove 24 is also spiral-shaped.

[0024] In an embodiment, the handle part 1 is provided with a water inlet channel 11, the reinforcing ring 23 is provided with a water outlet channel 231 which communicates with the water inlet channel 11, and the water outlet channel 231 corresponds to the guide groove 24. The cooling liquid enters the water inlet channel 11 and is discharged from the water outlet channel, and flows along the guide groove 24 to cool the drill bit.

[0025] In one possible implementation, the shank 1 is provided with external threads 12, by which the shank 1 is connected with the power device. This implementation facilitates the dismounting and mounting of the drill bit.

[0026] It is apparent for those skilled in the art that the present application is not limited to the details of the foregoing exemplary embodiments, and can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all respects as illustrative and not restrictive, the scope of the present application being defined by the appended claims rather than the foregoing description, and it is intended to embrace all changes and modifications that fall within the meaning and scope of equivalents of the claims. Any reference signs in the claims should not be construed as limiting the claims to the figures in which the reference signs are used.

[0027] The above-described embodiments are merely used to illustrate the technical solutions of the present application, rather than limit the technical solutions; even though the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that modifications can still be made to the technical solutions recorded in the foregoing embodiments, or equivalent replacements can be made to some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to depart from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A combined glass drill for cutting a side hole (5) in a glass (4), characterized in that: The utility model provides a cutting device for glass, including handle (1), cutting part (2) and chamfer part (3), handle (1) connects cutting part (2) and chamfer part (3) in proper order, handle (1) is used to be connected with connecting power equipment to drive cutting part (2) and chamfer part (3) rotation, cutting part (2) is used to cut out side hole (5) on the side of glass (4), chamfer part (3) includes upper chamfer platform (31), lower shaft body (32) and lower chamfer platform (33), cutting part (2) connects upper chamfer platform (31), lower shaft body (32) and lower chamfer platform (33) in proper order, upper chamfer platform (31) is used to chamfer the upper edge of side hole (5), and lower chamfer platform (33) is used to chamfer the lower edge of side hole (5).

2. The composite glass drill bit of claim 1, wherein: Upper chamfer platform (31) includes upper reinforcing ring (311) and upper circular platform (312), and lower chamfer platform (33) includes lower reinforcing ring (331) and lower circular platform (332), and cutting part (2) connects upper reinforcing ring (311), upper circular platform (312), lower shaft body (32), lower reinforcing ring (331) and lower circular platform (332) in proper order, and upper circular platform (312) is provided with upper grinding surface (313) for chamfering the upper edge of side hole (5), and lower circular platform (332) is provided with lower grinding surface (333) for chamfering the upper edge of side hole (5).

3. The composite glass drill according to claim 2, wherein: The upper grinding surface (313) and the lower grinding surface (333) are both inclined surfaces.

4. The composite glass drill according to claim 2, wherein: The upper grinding surface (313) and the lower grinding surface (333) are both curved surfaces.

5. The composite glass drill bit of claim 1, wherein: The cutting part (2) includes an upper shaft body (21), a plurality of cutting edges (22), and a reinforcing ring (23). The plurality of cutting edges (22) are evenly spaced on the circumferential wall of the upper shaft body (21), and a guide groove (24) is formed between adjacent cutting edges (22) for allowing chips to flow out. One end of the upper shaft body (21) and the plurality of cutting edges (22) are connected to the handle (1), and the other end is connected to the chamfering part (3).

6. The composite glass drill according to claim 5, wherein: The handle (1) is provided with a water inlet channel (11), and the reinforcing ring (23) is provided with a water outlet channel (231) that communicates with the water inlet channel (11). The water outlet channel (231) corresponds to the guide groove (24).

7. The composite glass drill according to claim 1, wherein: The handle (1) is provided with external threads (12), and the handle (1) is connected to the power equipment through the external threads (12).

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