CN217617955U

CN217617955U - Thin pagoda drill

Info

Publication number: CN217617955U
Application number: CN202221660474.5U
Authority: CN
Inventors: 陈翔
Original assignee: Danyang Dart Zhunsi Automation Technology Co ltd
Current assignee: Danyang Dart Zhunsi Automation Technology Co ltd
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2022-10-21
Anticipated expiration: 2032-06-30

Abstract

The utility model discloses a slim pagoda bores relates to hardware and tools technical field, including pagoda drill bit and pagoda drill drillstock, the pagoda drill bit is flat column structure, and the both sides of pagoda drill bit are provided with the ladder sword, and the top of pagoda drill bit is provided with row cutting groove, and the pagoda drill drillstock is including a fixed part and set up in two interval distribution's on fixed part top clamping part, and the pagoda drill bit sets up between two clamping parts of pagoda drill drillstock. The utility model provides a pagoda bores the drill bit and is flat column structure, has saved 18 times high-speed steel material resources for current cone structure's drill bit under equal specification, and the ladder sword of flat column drill bit only is located its narrow side moreover, conveniently processes the drill bit, and this drill bit and drillstock use different properties's material in addition, and is fixed with modes such as welding or riveting, avoids appearing too fragile the emergence of drillstock in the ordinary pagoda bores use and bends or cracked problem.

Description

Thin pagoda drill

Technical Field

The utility model relates to a hardware and tools technical field especially relates to a slim pagoda bores.

Background

The pagoda drill is also called a step drill and is mainly used for drilling and processing thin plates, one drill bit can replace a plurality of drill bits for use, and holes with different diameters can be processed according to requirements; at present, all pagoda drills on the market are processed by round bar materials. The larger the diameter is, the lower the material utilization rate is, the larger the processing amount is, and the connecting area between the drill bit and the drill shank of the existing pagoda drill is smaller, so that the problem that the drill bit and the drill shank are broken frequently in the using process is caused.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims at providing a slim pagoda bores, the drill bit is flat column structure, avoids because of self width too big and too much extravagant raw and other materials, and further the connection that makes between drill bit and the drillstock is stable.

The purpose of the utility model can be achieved by adopting the following technical scheme:

the utility model provides a slim pagoda bores, includes pagoda bores drill bit and pagoda bores the drill holder, the pagoda bores the drill bit and is flat column structure, the both sides of pagoda bores the drill bit are provided with the ladder sword, the top of pagoda bores the drill bit is provided with row cutting groove, the pagoda bores the drill holder including a fixed part with set up in two interval distribution's on fixed part top clamping part, the pagoda bores the drill bit and sets up between two clamping parts of pagoda bores the drill holder.

Preferably, the pagoda drill handle and the pagoda drill bit can be integrally formed by forging and pressing.

Preferably, the drill bit of the pagoda drill is welded or riveted between the two clamping parts of the drill handle of the pagoda drill.

Preferably, a fixing part and two clamping parts of the pagoda drill handle are integrally formed.

Preferably, the drill handle of the pagoda drill is of a columnar structure, and the top end surface of the drill handle of the pagoda drill is provided with a vertical groove so as to form two clamping parts which are distributed at intervals.

Preferably, the fixing part of the drill handle of the pagoda drill is of a columnar structure, the top end of the fixing part is provided with a circular truncated cone structure with a small top and a big bottom, and the top end face of the circular truncated cone structure is provided with a vertical groove so as to form two clamping parts with gaps.

Preferably, both of the clamping portions have a notch extending down the respective top end face to the respective bottom end face.

Preferably, the row of cutting grooves comprises a first row of cutting grooves and a second row of cutting grooves which are distributed at intervals in a front-back direction.

Preferably, the width of the pagoda drill bit is gradually increased from top to bottom.

Preferably, the thickness of the pagoda drill bit is 3-6 mm.

The utility model has the advantages of:

1. the utility model provides a pagoda bores the drill bit and is flat column structure, save partial high alloy steel material resource for the drill bit of current circular cone structure under equal specification, the ladder sword of flat column drill bit only is located its narrow side moreover, conveniently process the drill bit, this drill bit and drillstock use modes such as welding or riveting fixed in addition, both connection area are great moreover, effectively improved the connection stability between drill bit and the drillstock, the drillstock takes place to bend or cracked problem in having avoided appearing ordinary pagoda and having bored the use.

2. The utility model provides a pagoda bores when the processing material is low strength materials such as aluminium, plastics, wood and does between drill bit and the drillstock and to use the steel an organic whole forging and pressing shaping that hardness is slightly low-intensity high to constitute, also can utilize equal independent drill bit and drillstock to weld the setting, all can not lead to the fact harmful effects to the holistic structural strength of pagoda bores, still easily processing.

Drawings

Fig. 1 is a schematic view of a three-dimensional structure of a pagoda drill with a columnar drill handle according to an embodiment of the present invention;

fig. 2 is a schematic view of a three-dimensional structure of a pagoda drill with a columnar drill handle according to an embodiment of the present invention;

fig. 3 is a schematic view of a three-dimensional structure of a pagoda drill with a columnar fixing part according to an embodiment of the present invention;

fig. 4 is a schematic view of a three-dimensional structure of a drill shank with a cylindrical fixing portion according to an embodiment of the present invention.

In the figure: 1-pagoda drill bit, 2-pagoda drill handle, 3-step edge, 401-first row of cutting groove and 402-second row of cutting groove.

Detailed Description

In order to make the technical solutions of the present invention clearer and clearer for those skilled in the art, the present invention will be described in further detail with reference to the following embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.

As shown in fig. 1-4, the thin type pagoda drill provided by this embodiment includes a pagoda drill bit 1 and a pagoda drill handle 2 connected to each other, the pagoda drill bit 1 is in a flat structure, the thickness of the pagoda drill bit 1 is 3 to 6mm, the width of the pagoda drill bit 1 gradually increases from top to bottom, that is, the trapezoidal plate-shaped structure, so that the use of raw materials is not significantly increased under the condition that the diameter of the pagoda drill is increased, and material resources are effectively saved, the left and right sides of the pagoda drill bit 1 are both provided with a stepped blade 3, that is, a pagoda drill cutting edge, which is only on two narrow sides of the trapezoidal plate, and is convenient to process, the top end of the pagoda drill bit 1 is provided with a first row of cutting grooves 401 and a second row of cutting grooves 402 which are distributed at intervals front and back, so that the drill bit is convenient to center and row cut, the pagoda drill handle 2 includes a fixing portion and two clamping portions which are distributed at the top end of the fixing portion, and the pagoda drill bit 1 is arranged between two clamping portions of the fixing portion, so that the pagoda drill bit and the pagoda drill handle are not broken strength problem of the pagoda drill bit and the pagoda drill handle is not increased.

In this embodiment, as shown in fig. 1 and 2, the drill handle 2 and the drill bit 1 may be integrally formed by forging or pressing, or the drill bit 1 is welded or riveted between two clamping portions of the drill handle 2, and there are various processing methods applicable to most processing environments, when the drill bit and the drill handle are not integrally formed, a fixing portion and two clamping portions of the drill handle 2 are integrally formed, so as to ensure the overall structural strength of the drill handle 2, and simultaneously, the drill bit and the drill handle are conveniently connected.

In the present embodiment, as shown in fig. 1 and fig. 2, the drill handle 2 is a cylindrical structure, and the top end surface of the drill handle 2 has a vertical slot to form two clamping portions distributed at intervals, and the length of the vertical slot is smaller than the length of the drill handle 2.

In this embodiment, as shown in fig. 3 and 4, the fixing portion of the drill handle 2 of the pagoda drill is a columnar structure, the top end of the fixing portion has a round platform structure with a small top and a large bottom, the maximum diameter of the round platform structure is smaller than the width of the drill of the pagoda drill, and the top end face of the round platform structure has a vertical groove to form two clamping portions with gaps, the two clamping portions both have a gap extending downwards to the respective bottom end face along the respective top end face, that is, each clamping portion has a gap equal to its own length, and under the condition that the overall strength is not affected, part of material resources can be saved.

In conclusion, in this embodiment, the pagoda drill bit 1 that this embodiment provided is flat structure, has saved some high alloy steel material resources under the same specification for the drill bit of current cone structure, and the ladder sword 3 of flat drill bit 1 only is located its narrow side, conveniently processes drill bit 1, and this drill bit 1 is located between two clamping parts of drillstock 2 in addition, the effectual stability of being connected that has improved between drill bit 1 and the drillstock 2 avoids taking place between drill bit 1 and the drillstock 2 in this pagoda drill use the problem of bending or fracture.

The above description is only a further embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, and any person skilled in the art can replace or change the technical solution and the concept of the present invention within the scope of the present invention.

Claims

1. A thin pagoda drill is characterized in that: including pagoda drill bit (1) and pagoda drill drillstock (2), pagoda drill bit (1) is flat structure, the both sides of pagoda drill bit (1) are provided with ladder sword (3), the top of pagoda drill bit (1) is provided with row cutting groove, pagoda drill drillstock (2) are including a fixed part and set up in two interval distribution's on fixed part top clamping part, pagoda drill bit (1) sets up between two clamping parts of pagoda drill drillstock (2).

2. The slim pagoda drill of claim 1, wherein: the pagoda drill handle (2) and the pagoda drill bit (1) are integrally formed.

3. The slim pagoda drill of claim 1, wherein: the pagoda drill bit (1) is welded or riveted between the two clamping parts of the pagoda drill handle (2).

4. The slim pagoda drill of claim 3, wherein: a fixing part and two clamping parts of the pagoda drill handle (2) are integrally formed.

5. The slim pagoda drill of claim 1, wherein: the pagoda drill handle (2) is of a columnar structure, and a vertical groove is formed in the top end face of the pagoda drill handle (2) to form two clamping parts which are distributed at intervals.

6. The slim pagoda drill of claim 1, wherein: the fixing part of the pagoda drill handle (2) is of a columnar structure, the top end of the fixing part is provided with a circular truncated cone structure with a small top and a large bottom, and the top end face of the circular truncated cone structure is provided with a vertical groove to form two clamping parts with gaps.

7. The slim pagoda drill of claim 6, wherein: both of the clamping portions have a notch extending down the respective top end face to the respective bottom end face.

8. The slim pagoda drill of claim 1, wherein: the row of cutting grooves comprises a first row of cutting grooves (401) and a second row of cutting grooves (402) which are distributed at intervals in the front-back direction.

9. The slim pagoda drill of claim 1 wherein: the width of the pagoda drill bit (1) is gradually increased from top to bottom.

10. The slim pagoda drill of claim 1, wherein: the thickness of the pagoda drill bit (1) is 3-6 mm.