Combined type girdling stepped drill
By using a combined design of the positioning hole, positioning rod and connecting spring structure in the ring -cut ladder diamond, the existing ring -cut ladder diamond diamonds are not easy to disassemble and install, and achieve more flexible replacement and lower use costs.
Patent Information
- Application Number
- CN202421689187.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-17
- Publication Date
- 2025-01-24
- Estimated Expiration
- 2034-07-17
AI Technical Summary
The existing circumcision step drill is inconvenient for disassembly and assembly, resulting in the need to replace the whole body when there is local wear, which increases the cost of use.
A combined ring-cut step drill is designed, which uses a positioning hole, a positioning rod and a connecting spring structure to facilitate the assembly and disassembly of the connecting sleeve and the step drill body, and facilitates disassembly and replacement when the drill bit or the step drill body is worn later.
The flexibility of the device is improved by combined design, reducing the cost of the cycle -cut ladder diamond, and ensuring the stability of the connection during the disassembly process, avoiding the loosening of the positioning rod.
Smart Images
Figure CN222385980U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of step drills, in particular to a combined ring-cutting step drill. Background Art
[0002] The step drill, also known as the step drill or pagoda drill, is mainly used for drilling holes in thin steel plates within 3mm. One drill bit can replace multiple drill bits to process holes of different diameters as needed, and can complete large holes in one go without the need to replace the drill bit or drill positioning holes. The product can be used in automobile processing, aerospace, sheet metal processing, electrical installation and maintenance and other industries. At the same time, the product is easy to carry and can be used with tools such as hand drills for high-altitude operations.
[0003] In the prior art, the circular cutting step drill is generally manufactured in one piece, which is not convenient for later disassembly and replacement. When local wear occurs, the entire drill needs to be replaced, resulting in a high cost of using the circular cutting step drill. Utility Model Content
[0004] The utility model aims to provide a combined ring-cutting step drill to solve the problem of inconvenient assembly and disassembly of the existing one.
[0005] In order to solve the above technical problems, the utility model is achieved through the following technical solutions:
[0006] The utility model discloses a combined circular cutting step drill, comprising a step drill body, a connecting piece and a connecting sleeve, wherein the connecting piece is welded on the upper surface of the step drill body, positioning holes are arranged on two opposite surfaces of the connecting piece, the connecting sleeve is embedded in the peripheral side surface of the connecting piece, the peripheral side surface of the connecting piece is slidably matched with the interior of the connecting sleeve, through holes are arranged on two opposite surfaces of the connecting sleeve, two through holes are communicated with the interior of the connecting sleeve, positioning rods are arranged inside the two through holes, one end of the two positioning rods extends into the interior of the connecting sleeve, one end of the two positioning rods is snap-fitted with the positioning holes, so as to facilitate the assembly and disassembly between the connecting sleeve and the step drill body, and to facilitate the disassembly and replacement of the drill bit or the step drill body when it is worn in the later stage, so as to improve the flexibility of the device when in use and reduce the use cost of the circular cutting step drill.
[0007] Furthermore, the circumferential side surfaces of the two positioning rods are respectively slidably matched with the two through holes, one end of the two positioning rods extends to the outside of the connecting sleeve, one end of the two positioning rods is welded with a mounting plate, and both ends of one mounting plate are welded with a first extension plate.
[0008] Furthermore, second extension plates are welded to both ends of the other mounting plate, the two first extension plates and the two second extension plates are arranged opposite to each other, and the two first extension plates and the two second extension plates are arc-shaped plate structures.
[0009] Furthermore, first connecting plates are welded to both ends of the two first extension plates, and second connecting plates are welded to both ends of the two second extension plates, and positions of the two second connecting plates are adapted to positions of the two first connecting plates.
[0010] Furthermore, a fixing sleeve is welded to one surface of the two first connecting plates, a guide rod is embedded inside the two fixing sleeves, and the peripheral side surfaces of one end of the two guide rods are slidably matched with the peripheral side surfaces inside the fixing sleeves.
[0011] Furthermore, the other ends of the two guide rods extend to the outside of the fixed sleeve, and the other ends of the two guide rods are respectively welded to one surface of two second connecting plates.
[0012] Furthermore, connecting springs are welded between a surface of the two second connecting plates and a surface of the two fixed sleeves, and the two connecting springs are respectively wound around the side surfaces of the two guide rods, which facilitates the disassembly and assembly of the step drill body and the connecting sleeves while ensuring the stability of the connection and preventing the positioning rod from loosening when the step drill body rotates.
[0013] Furthermore, a drill bit is embedded on the lower surface of the step drill body, one end of the drill bit is threadedly engaged with the step drill body, and a plurality of cooling holes are arranged on the peripheral side of the drill bit.
[0014] The utility model has the following beneficial effects:
[0015] 1. The utility model facilitates the assembly and disassembly between the connecting sleeve and the step drill body through the positioning hole, the positioning rod and the connecting spring structure, and is convenient for disassembly and replacement of the drill bit or the step drill body when it is worn in the later stage, thereby improving the flexibility of the device when used and reducing the use cost of the ring-cutting step drill.
[0016] 2. The utility model uses a fixed sleeve, a guide rod and a connecting spring structure to facilitate the disassembly and assembly of the step drill body and the connecting sleeve while ensuring the stability of the connection and preventing the positioning rod from loosening when the step drill body rotates.
[0017] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0019] Figure 1This is a structural schematic diagram of a combined ring-cutting step drill of the utility model;
[0020] Figure 2 It is a front view structural diagram of a combined ring-cutting step drill of the utility model;
[0021] Figure 3 It is a right view structural schematic diagram of a combined circular cutting step drill of the utility model;
[0022] Figure 4 The utility model is a schematic diagram of a top view of the structure of a combined circular cutting step drill.
[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:
[0024] 1. Step drill body; 2. Connecting piece; 3. Positioning hole; 4. Connecting sleeve; 5. Through hole; 6. Positioning rod; 7. Mounting plate; 8. First extension plate; 9. Second extension plate; 10. First connecting plate; 11. Second connecting plate; 12. Fixed sleeve; 13. Guide rod; 14. Connecting spring; 15. Drill bit; 16. Cooling hole. DETAILED DESCRIPTION
[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0026] In the description of the present invention, it should be understood that the terms "upper", "middle", "outer", "inner" and the like indicating directions or positional relationships are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limitations on the present invention.
[0027] See also Figure 1-Figure 4As shown, the utility model is a combined ring-cutting step drill, including a step drill body 1, a connecting piece 2 and a connecting sleeve 4, the connecting piece 2 is welded on the upper surface of the step drill body 1, and positioning holes 3 are arranged on the two opposite surfaces of the connecting piece 2, and the connecting sleeve 4 is embedded in the side surfaces of the connecting piece 2, and the side surfaces of the connecting piece 2 are slidably matched with the inside of the connecting sleeve 4, and through holes 5 are arranged on the two opposite surfaces of the connecting sleeve 4, and the two through holes 5 are connected with the inside of the connecting sleeve 4, and positioning rods 6 are installed in the inside of the two through holes 5, and one end of the two positioning rods 6 extends to the inside of the connecting sleeve 4, and one end of the two positioning rods 6 is snap-fitted with the positioning holes 3, which is convenient for assembly and disassembly between the connecting sleeve 4 and the step drill body 1, and is convenient for disassembly and replacement of the drill bit 15 or the step drill body 1 when it is worn in the later stage, thereby improving the flexibility of the device when in use and reducing the use cost of the ring-cutting step drill, and a drill bit 15 is installed on the lower surface of the step drill body 1, and one end of the drill bit 15 is screwed with the step drill body 1, and a plurality of cooling holes 16 are arranged on the side surfaces of the drill bit 15.
[0028] The side surfaces of the two positioning rods 6 are slidably matched with the two through holes 5 respectively, and one end of the two positioning rods 6 extends to the outside of the connecting sleeve 4. One end of the two positioning rods 6 is welded with a mounting plate 7, and both ends of a mounting plate 7 are welded with a first extension plate 8.
[0029] Second extension plates 9 are welded to both ends of the other mounting plate 7. The two first extension plates 8 and the two second extension plates 9 are arranged opposite to each other, and the two first extension plates 8 and the two second extension plates 9 are arc-shaped plate structures.
[0030] The two first extension plates 8 are both welded with first connection plates 10 at both ends, and the two second extension plates 9 are both welded with second connection plates 11 at both ends. The positions of the two second connection plates 11 are adapted to the positions of the two first connection plates 10 .
[0031] A fixing sleeve 12 is welded to one surface of the two first connecting plates 10 , and a guide rod 13 is embedded inside the two fixing sleeves 12 . The peripheral side surfaces of one end of the two guide rods 13 are slidably matched with the peripheral side surfaces inside the fixing sleeves 12 .
[0032] The other ends of the two guide rods 13 extend to the outside of the fixing sleeve 12 , and the other ends of the two guide rods 13 are respectively welded to one surface of the two second connecting plates 11 .
[0033] Connecting springs 14 are welded between the surfaces of the two second connecting plates 11 and the surfaces of the two fixed sleeves 12. The two connecting springs 14 are respectively wrapped around the sides of the two guide rods 13, which facilitates the disassembly and assembly of the step drill body 1 and the connecting sleeve 4 while ensuring the stability of the connection and preventing the positioning rod 6 from loosening when the step drill body 1 rotates.
[0034] See also Figure 1-Figure 4As shown, the utility model is a combined ring-cutting step drill, and its method of use is as follows: through the positioning hole 3, the positioning rod 6 and the connecting spring 14 structure, the assembly and disassembly between the connecting sleeve 4 and the step drill body 1 are convenient, and it is convenient to disassemble and replace the drill bit 15 or the step drill body 1 when it is worn in the later stage, thereby improving the flexibility of the device when in use and reducing the use cost of the ring-cutting step drill; through the fixing sleeve 12, the guide rod 13 and the connecting spring 14 structure, while facilitating the disassembly and assembly of the step drill body 1 and the connecting sleeve 4, the stability of the connection is guaranteed, and the positioning rod 6 is prevented from loosening when the step drill body 1 rotates.
[0035] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0036] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A combined circular cutting step drill, comprising a step drill body (1), a connecting piece (2) and a connecting sleeve (4), characterized in that: The connecting piece (2) is welded to the upper surface of the step drill body (1); positioning holes (3) are provided on two opposite surfaces of the connecting piece (2); the connecting sleeve (4) is mounted on the peripheral side of the connecting piece (2); the peripheral side of the connecting piece (2) and the interior of the connecting sleeve (4) are slidably matched; through holes (5) are provided on two opposite surfaces of the connecting sleeve (4); the two through holes (5) are connected to the interior of the connecting sleeve (4); positioning rods (6) are installed inside the two through holes (5); one end of the two positioning rods (6) extends to the interior of the connecting sleeve (4); one end of the two positioning rods (6) is snap-fitted with the positioning holes (3).
2. A combined circular cutting step drill according to claim 1, characterized in that: The circumferential side surfaces of the two positioning rods (6) are respectively slidably matched with the two through holes (5), one end of the two positioning rods (6) extends to the outside of the connecting sleeve (4), one end of the two positioning rods (6) is welded with a mounting plate (7), and both ends of one mounting plate (7) are welded with a first extension plate (8).
3. A combined circular cutting step drill according to claim 2, characterized in that: Second extension plates (9) are welded to both ends of the other mounting plate (7), the two first extension plates (8) and the two second extension plates (9) are arranged opposite to each other, and the two first extension plates (8) and the two second extension plates (9) are arc-shaped plate structures.
4. A combined circular cutting step drill according to claim 3, characterized in that: Both ends of the two first extension plates (8) are welded with first connection plates (10), and both ends of the two second extension plates (9) are welded with second connection plates (11), and the positions of the two second connection plates (11) are adapted to the positions of the two first connection plates (10).
5. A combined circular cutting step drill according to claim 4, characterized in that: A fixed sleeve (12) is welded to one surface of the two first connecting plates (10), a guide rod (13) is installed inside the two fixed sleeves (12), and the peripheral side surfaces of one end of the two guide rods (13) are slidably matched with the internal peripheral side surfaces of the fixed sleeves (12).
6. A combined circular cutting step drill according to claim 5, characterized in that: The other ends of the two guide rods (13) extend to the outside of the fixed sleeve (12), and the other ends of the two guide rods (13) are respectively welded to one surface of the two second connecting plates (11).
7. A combined circular cutting step drill according to claim 6, characterized in that: A connecting spring (14) is welded between a surface of the two second connecting plates (11) and a surface of the two fixing sleeves (12), and the two connecting springs (14) are respectively wound around the circumferential side surfaces of the two guide rods (13).
8. The combined circular cutting step drill according to claim 1, characterized in that: A drill bit (15) is embedded on the lower surface of the step drill body (1), one end of the drill bit (15) is threadedly engaged with the step drill body (1), and a plurality of cooling holes (16) are arranged on the peripheral side of the drill bit (15).