Split type stepped drill

Abstract

The utility model discloses a kind of split stepped drill, comprising: stepped drill main body;Assembly positioning mechanism, the assembly positioning mechanism is through and is fixed in the lower end of stepped drill main body Middle;By being provided with elastic resistance mechanism structure, to install by elastic resistance, the resistance spring of elastic resistance mechanism can be stably placed on rounded assembly block, so that resistance spring can be positioned resistance in the plug-in post installation groove of rounded assembly block, the outer end of resistance spring is fixed with the positioning plug-in post exposed through rounded assembly block, resistance spring can resist positioning plug-in post to move out, so that positioning plug-in post can be inserted in the positioning insertion hole of handle connecting head, so as to be conveniently fixed, when disassembling, personnel press positioning plug-in post to retract into plug-in post installation groove using tool, then pull the installation handle, so that installation handle drives rounded assembly block and handle connecting head separate, to complete overall disassembly, so as to be conveniently disassembled according to need.

Description

Technical Field

[0001] This utility model relates to the field of stepped drilling technology, specifically to a split-type stepped drilling machine. Background Technology

[0002] Step drills, also known as step drills or pagoda drills, are mainly used for drilling thin steel plates up to 3mm thick. One drill bit can replace multiple drill bits, and can process holes of different diameters as needed. Large holes can be processed in one go without changing drill bits or drilling positioning holes.

[0003] The existing Chinese patent CN219966536U, disclosed on November 7, 2023, discloses a step drill, which includes a step drill body. The step drill body includes first and second step sections distributed adjacent to each other along one direction. The first step section has multiple first steps that are sequentially adjacent along one direction, and each first step has the same length. The second step section has multiple second steps that are sequentially adjacent along one direction, and each second step has the same length. The length of the first step is less than the length of the second step.

[0004] However, the aforementioned device cannot be effectively disassembled into separate parts. Therefore, when the shank at the lower end of the step drill body is damaged, the entire device needs to be replaced, which results in unnecessary waste of resources. Utility Model Content

[0005] The purpose of this utility model is to provide a split-type step drill to solve the problem mentioned in the background art that the above-mentioned device cannot be effectively disassembled, so that when the lower end shank of the step drill body is damaged, the whole device needs to be replaced.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a split-type step drill, comprising:

[0007] Step drill body;

[0008] An assembly positioning mechanism is installed and fixedly connected to the lower middle of the stepped drill body;

[0009] The split quick-installation handle is installed and connected to the inner middle of the assembly positioning mechanism and the step drill body;

[0010] An elastic abutment mechanism is installed between the split quick-mount handle and the assembly positioning mechanism.

[0011] The stepped drill body includes a stepped drill bit, with a drill bit groove cavity on the outer side of the stepped drill bit. A drilling label is laser-printed on the inner side of the drill bit groove cavity on the stepped drill bit, and an assembly positioning mechanism is fixedly connected to the lower end of the stepped drill bit.

[0012] The assembly and positioning mechanism includes a shank connector fixed to the lower end of the step drill bit. Positioning holes are provided on the inner sides of both ends of the shank connector. The inner side of the upper end of the shank connector is connected to the step drill bit through the sleeve assembly hole. An assembly block cavity is provided inside the shank connector. A split quick-installation handle is installed on the shank connector through the assembly block cavity and the sleeve assembly hole.

[0013] The split quick-installation handle includes a rounded assembly block sleeved onto the handle connector. An assembly sleeve rod is fixedly connected to the middle of the upper end of the rounded assembly block. A sleeve rod keyway is provided on the outer wall of the assembly sleeve rod. An installation handle rod is fixedly connected to the lower end of the rounded assembly block. A handle rod keyway is provided on the outer wall of the installation handle rod. Insertion pin mounting slots are provided on the inner sides of both ends of the rounded assembly block. An elastic abutment mechanism is installed on the rounded assembly block through the insertion pin mounting slots.

[0014] The elastic abutment mechanism includes an abutment spring fixed to the rounded assembly block, and the outer end of the abutment spring is fixed with a positioning post that protrudes through the rounded assembly block.

[0015] The positioning pin corresponds to the positioning hole.

[0016] The stepped drill bit has an assembly slot corresponding to the assembly sleeve on its lower inner side.

[0017] In summary, due to the adoption of the above-mentioned technologies, the beneficial effects of this utility model are:

[0018] 1. In this utility model, an elastic abutment mechanism is provided, allowing for elastic abutment during installation. The abutment spring of the elastic abutment mechanism can be stably placed on the rounded assembly block, so that the abutment spring can be positioned and abutted in the insertion slot of the rounded assembly block. The outer end of the abutment spring is fixedly connected to a positioning insertion post that protrudes through the rounded assembly block. The abutment spring can abut the positioning insertion post to move outward, so that the positioning insertion post can be inserted into the positioning insertion hole of the handle connector. This facilitates installation and fixation. During disassembly, the operator uses a tool to press the positioning insertion post back into the insertion slot, and then pulls the installation handle, causing the installation handle to separate the rounded assembly block from the handle connector, thereby completing the overall disassembly. This facilitates disassembly and replacement as needed.

[0019] 2. In this utility model, by setting an assembly positioning mechanism, the split quick-installation handle can be installed accordingly. The handle rod connector of the assembly positioning mechanism passes through the area of ​​the positioning insertion hole, so that the elastic abutment mechanism can be inserted accordingly for assembly connection. The upper inner side of the handle rod connector passes through the sleeve rod assembly hole and penetrates the stepped drill bit, so that the assembly sleeve rod can pass through accordingly for assembly connection. An assembly block cavity is opened inside the handle rod connector, so that the rounded assembly block can be installed accordingly. The split quick-installation handle is installed on the handle rod connector through the assembly block cavity and the sleeve rod assembly hole, so that it can be installed accordingly. This also facilitates the split disassembly and replacement of corresponding parts. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of a split-type step drill according to the present invention;

[0021] Figure 2 This is a schematic diagram of the separation structure of a split-type stepped drill according to the present invention;

[0022] Figure 3 This is a schematic diagram of the assembly and positioning mechanism of a split-type stepped drill according to the present invention.

[0023] Figure 4 This is a schematic diagram of the separate quick-installation handle and elastic abutment mechanism of a split-type step drill according to the present invention.

[0024] Figure 5 This is a schematic diagram of the elastic abutment mechanism of a split-type stepped drill according to the present invention.

[0025] In the diagram: 1. Step drill bit; 11. Drill bit cavity; 12. Shank connector; 121. Sleeve assembly hole; 122. Assembly block cavity; 13. Positioning insertion hole; 2. Drilling label; 21. Rounded assembly block; 3. Mounting shank; 31. Shank keyway; 32. Insertion post mounting slot; 4. Positioning insertion post; 41. Contact spring; 5. Assembly sleeve; 51. Sleeve keyway. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model.

[0027] Example 1

[0028] Reference Figures 1-5 A split-type step drill includes a step drill body, an assembly and positioning mechanism, a split quick-installation handle, and an elastic abutment mechanism.

[0029] The assembly positioning mechanism is fixedly connected to the lower middle of the stepped drill body. The stepped drill body can be externally connected via the assembly positioning mechanism. The split quick-installation handle is installed between the assembly positioning mechanism and the inner middle of the stepped drill body. The split quick-installation handle can be installed on the assembly positioning mechanism and the stepped drill body for assembly. The elastic abutment mechanism is installed between the split quick-installation handle and the assembly positioning mechanism. The split quick-installation handle and the assembly positioning mechanism can be assembled via the elastic abutment mechanism, and the pin of the elastic abutment mechanism facilitates replacement.

[0030] The assembly positioning mechanism includes a shank connector 12 fixed to the lower end of the step drill bit 1. The shank connector 12 can be stably installed at the lower end of the step drill bit 1. Positioning insertion holes 13 are provided on the inner sides of both ends of the shank connector 12. The shank connector 12 passes through the area of ​​the positioning insertion holes 13, allowing the elastic abutment mechanism to be inserted and assembled. The upper inner side of the shank connector 12 passes through the sleeve assembly hole 121 to the step drill bit 1, allowing the assembly sleeve 5 to pass through and be assembled. An assembly block cavity 122 is provided inside the shank connector 12, allowing the rounded assembly block 21 to be installed. The shank connector 12 is equipped with a split quick-installation handle through the assembly block cavity 122 and the sleeve assembly hole 121, which allows for corresponding installation and facilitates disassembly and replacement of corresponding parts.

[0031] The split quick-installation handle includes a rounded assembly block 21 that fits onto the handle connector 12. The rounded assembly block 21 can be fitted into the assembly block cavity 122 of the handle connector 12, thus enabling corresponding installation and connection. This fitting method facilitates disassembly. An assembly sleeve 5 is fixedly connected to the middle of the upper end of the rounded assembly block 21. The outer wall of the assembly sleeve 5 has a sleeve keyway 51. The rounded assembly block 21 can be keyed and fixed onto the step drill through the sleeve keyway 51 on the outer wall of the assembly sleeve 5. Inside the drill bit 1, a stable installation is secured to prevent slippage during rotation. The lower end of the rounded assembly block 21 is fixedly connected to the mounting shank 3. The outer wall of the mounting shank 3 has a shank keyway 31, which facilitates keying and fixing of the mounting shank 3 to the outside, thus preventing slippage during rotation. The inner sides of both ends of the rounded assembly block 21 have insert mounting slots 32, through which the rounded assembly block 21 is fitted with an elastic abutment mechanism, allowing the elastic abutment mechanism to be installed and placed accordingly.

[0032] The elastic abutment mechanism includes an abutment spring 41 fixed to the rounded assembly block 21. The abutment spring 41 can be stably placed on the rounded assembly block 21, so that the abutment spring 41 can be positioned and abutted in the insertion slot 32 of the rounded assembly block 21. The outer end of the abutment spring 41 is fixed with a positioning insertion post 4 that protrudes through the rounded assembly block 21. The abutment spring 41 can abut the positioning insertion post 4 to move outward, so that the positioning insertion post 4 can be inserted into the positioning insertion hole 13 of the handle connector 12. This facilitates installation and fixation. When disassembling, the personnel use tools to press the positioning insertion post 4 back into the insertion slot 32, and then pull the installation handle 3, so that the installation handle 3 drives the rounded assembly block 21 to separate from the handle connector 12, thereby completing the overall disassembly. This facilitates disassembly and replacement as needed.

[0033] The positioning pin 4 corresponds to the positioning hole 13, so that they can be inserted and fixedly assembled.

[0034] Working principle: The split quick-installation handle is installed and connected to the inner middle of the assembly positioning mechanism and the step drill body. The split quick-installation handle can be installed on the assembly positioning mechanism and the step drill body for assembly. The split quick-installation handle and the assembly positioning mechanism can be assembled in a corresponding manner through the elastic abutment mechanism, and the pin method of the elastic abutment mechanism makes it easy to replace.

[0035] Example 2

[0036] Reference Figure 1 and Figure 2A split-type step drill, compared to embodiment one, the main body of the step drill includes a step drill bit 1, which can be used for step drilling. A drill bit cavity 11 is opened on the outer side of the step drill bit 1. The step drill bit 1 passes through the area of ​​the drill bit cavity 11, which facilitates the discharge of debris. A drilling label 2 is laser-printed on the inner side of the drill bit cavity 11 and located on the step drill bit 1. The size of the drilling hole can be determined by the drilling label 2. An assembly positioning mechanism is fixedly connected to the lower end of the step drill bit 1. The step drill bit 1 is easily assembled and connected by the assembly positioning mechanism.

[0037] The lower inner side of the stepped drill bit 1 is provided with an assembly slot corresponding to the assembly sleeve 5, so that it can be inserted for assembly.

[0038] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

Claims

1. A split-type step drill, characterized in that, include: Step drill body; An assembly positioning mechanism is installed and fixedly connected to the lower middle of the stepped drill body; The split quick-installation handle is installed and connected to the inner middle of the assembly positioning mechanism and the step drill body; An elastic abutment mechanism is installed between the split quick-mount handle and the assembly positioning mechanism.

2. A split-type step drill according to claim 1, characterized in that: The stepped drill body includes a stepped drill bit (1), a drill bit cavity (11) is provided on the outer side of the stepped drill bit (1), a drilling label (2) is laser-printed on the inner side of the drill bit cavity (11) and an assembly positioning mechanism is fixedly connected to the lower end of the stepped drill bit (1).

3. A split-type step drill according to claim 1 or 2, characterized in that: The assembly positioning mechanism includes a shank connector (12) fixed to the lower end of the step drill bit (1). The inner sides of both ends of the shank connector (12) are provided with positioning insertion holes (13). The inner side of the upper end of the shank connector (12) is connected to the step drill bit (1) through the sleeve assembly hole (121). The shank connector (12) is provided with an assembly block cavity (122). The shank connector (12) is equipped with a split quick-installation handle through the assembly block cavity (122) and the sleeve assembly hole (121).

4. A split-type step drill according to claim 3, characterized in that: The split quick-installation handle includes a rounded assembly block (21) sleeved on the handle connector (12). An assembly sleeve rod (5) is fixedly connected to the middle of the upper end of the rounded assembly block (21). A sleeve rod keyway (51) is provided on the outer wall of the assembly sleeve rod (5). An installation handle rod (3) is fixedly connected to the lower end of the rounded assembly block (21). A handle rod keyway (31) is provided on the outer wall of the installation handle rod (3). Insertion pin installation slots (32) are provided on the inner sides of both ends of the rounded assembly block (21). An elastic abutment mechanism is installed on the rounded assembly block (21) through the insertion pin installation slots (32).

5. A split-type step drill according to claim 1 or 4, characterized in that: The elastic abutment mechanism includes an abutment spring (41) fixed to the rounded assembly block (21), and the outer end of the abutment spring (41) is fixed with a positioning pin (4) protruding through the rounded assembly block (21).

6. A split-type step drill according to claim 5, characterized in that: The positioning pin (4) corresponds to the positioning hole (13).

7. A split-type step drill according to claim 2, characterized in that: The lower inner side of the stepped drill bit (1) is provided with an assembly slot corresponding to the assembly sleeve (5).

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