A method for drilling holes in internal thread spirals

Abstract

This application discloses a method for drilling holes on an internal thread helix, comprising: screwing the internal thread of a workpiece onto the external thread of a threaded rod, so that the axial end face of the workpiece abuts against the inner positioning surface of a seat, presenting a drilling structure in which the workpiece is screwed onto the threaded rod and positioned on the seat, allowing for easy disassembly. After the workpiece is screwed into the external thread of the threaded rod, it abuts against the inner positioning surface of the seat. The head positioning surface of the threaded rod contacts and abuts against the end positioning surface of the seat. The D-shaped rod positioning surface of the D-shaped rod cooperates with the D-shaped hole positioning surface in the D-shaped hole to prevent the threaded rod from rotating within the seat. This presents a drilling structure in which the workpiece is screwed onto the threaded rod and positioned on the seat, allowing for easy disassembly, solving the problem of the existing technology using a fixed screw, support plate, and nut for locking and applying force, which involves many components and is cumbersome to disassemble.

Description

Technical Field

[0001] This invention relates to a method for drilling holes in an internal thread helix, belonging to the field of drilling technology. Background Technology

[0002] When manufacturing workpieces with internal threads, it is necessary to drill vertically along the axial normal of the workpiece's outer circumference. The resulting through hole is along the radial direction of the workpiece. Since the required drilling position is at the beginning of the internal thread helix, directly clamping both ends of the workpiece axially for drilling cannot guarantee that the resulting through hole will be at the beginning of the internal thread helix.

[0003] In existing technologies for drilling along the axial normal of the outer periphery of a workpiece, such as Chinese Patent Publication No. CN104690327A, the disclosed technology uses a fixed screw, support plate, and nut for locking, and then the drill bit drills through the hole in the drill plate to form a hole. Although the through hole after drilling the workpiece is at the starting position required by the internal thread helix, there are problems such as a large number of locking force-applying components and cumbersome disassembly. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides a method for drilling holes on an internal thread helix.

[0005] The present invention is achieved through the following technical solutions.

[0006] This invention provides a method for drilling holes in an internal thread helix, comprising:

[0007] The internal thread of the workpiece is screwed into the external thread of the threaded rod, so that the axial end face of the workpiece abuts against the inner positioning surface of the seat, presenting a drilling structure in which the workpiece is screwed into the threaded rod and positioned on the seat, and can be easily disassembled.

[0008] Specifically, after the workpiece is screwed into the external thread of the threaded rod and abuts against the inner positioning surface of the seat, the head positioning surface of the threaded rod contacts and abuts against the end positioning surface of the seat. The D-shaped rod positioning surface of the D-shaped rod cooperates with the D-shaped hole positioning surface in the D-shaped hole to prevent the threaded rod from rotating in the seat. This presents a drilling structure in which the workpiece is screwed onto the threaded rod and positioned on the seat, and can be easily disassembled. The positioning hole of the seat corresponds to the starting line of the external thread. After the drill bit drills through the positioning hole to form a through hole normal to the outer circumference of the workpiece, the through hole of the workpiece is formed at the starting point of the internal thread helix of the workpiece. After the workpiece is drilled, it is screwed out from the external thread of the threaded rod.

[0009] The drilling structure includes a seat with positioning holes.

[0010] The seat has a D-shaped hole inside, and the D-shaped hole has a D-shaped hole positioning surface, which is a plane.

[0011] The seat has an inner positioning surface, and the end face of the seat away from the inner positioning surface has an end positioning surface.

[0012] The drilling structure also includes a threaded rod with external threads.

[0013] The threaded rod has a D-shaped rod, and the D-shaped rod has a D-shaped rod positioning surface.

[0014] The threaded rod has a head positioning surface.

[0015] The beneficial effects of this invention are as follows: after the workpiece is screwed into the external thread of the threaded rod and abuts against the inner positioning surface of the seat, the head positioning surface of the threaded rod contacts and abuts against the end positioning surface of the seat, and the D-shaped rod positioning surface of the D-shaped rod cooperates with the D-shaped hole positioning surface in the D-shaped hole to prevent the threaded rod from rotating in the seat. This presents a drilling structure in which the workpiece is screwed onto the threaded rod and positioned on the seat and can be easily disassembled, which solves the problem of the existing technology using a fixed screw, support plate and nut for locking and force application, which involves many components that are difficult to disassemble. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the fit between the seat and the threaded rod of the present invention;

[0017] Figure 2 This is a schematic diagram of the threaded rod fitting according to the present invention;

[0018] Figure 3 yes Figure 2 Side view diagram from direction B;

[0019] Figure 4 This is a schematic diagram of the base of the present invention;

[0020] Figure 5 yes Figure 4 Side view diagram of direction A

[0021] Figure 6 This is a schematic diagram of the fit between the base, threaded rod, and workpiece of the present invention;

[0022] In the figure: 1-seat; 11-D-shaped hole; 12-D-shaped hole positioning surface; 13-end positioning surface; 14-positioning hole; 15-inner positioning surface; 2-threaded rod; 21-D-shaped rod; 22-D-shaped rod positioning surface; 23-head positioning surface; 24-external thread; 3-workpiece. Detailed Implementation

[0023] The technical solution of the present invention is further described below, but the scope of protection is not limited to what is described.

[0024] like Figures 1 to 6 As shown.

[0025] A method for drilling holes in an internal thread helix according to this application includes:

[0026] The internal thread of workpiece 3 is screwed into the external thread 24 of threaded rod 2, so that the axial end face of workpiece 3 abuts against the inner positioning surface 15 of seat 1, presenting a drilling structure in which workpiece 3 is screwed into threaded rod 2 and positioned on seat 1 and can be easily disassembled.

[0027] The drilling structure includes a seat 1 with a positioning hole 14, and a drill bit drills through the positioning hole 14 to form a through hole in the axial normal of the outer periphery of the workpiece 3.

[0028] The seat 1 has a D-shaped hole 11 inside, and the D-shaped hole 11 has a D-shaped hole positioning surface 12. The D-shaped hole positioning surface 12 is a plane. When the D-shaped rod positioning surface 22 of the threaded rod 2 is engaged with the plane of the D-shaped hole positioning surface 12 of the seat 1, the threaded rod 2 is prevented from rotating inside the seat 1.

[0029] The seat 1 has an inner positioning surface 15, and the end face of the seat 1 away from the inner positioning surface 15 has an end positioning surface 13.

[0030] The drilling structure also includes a threaded rod 2 with an external thread 24. The starting point of the external thread 24 corresponds to the positioning hole 14 on the seat 1. After the internal thread of the workpiece 3 is screwed into the external thread 24 of the threaded rod 2, the axial end face of the workpiece 3 abuts against the inner positioning surface 15 of the seat 1. When the drill bit drills in from the positioning hole 14, the through hole formed after drilling the workpiece 3 is just at the starting point of the internal thread helix of the workpiece 3.

[0031] The threaded rod 2 has a D-shaped rod 21, and the D-shaped rod 21 has a D-shaped rod positioning surface 22 to cooperate with the D-shaped hole positioning surface 12 in the D-shaped hole 11 to prevent the threaded rod 2 from rotating in the seat 1;

[0032] The threaded rod 2 has a head positioning surface 23, which contacts and abuts against the end positioning surface 13 of the seat 1 to ensure that the threaded rod 2 stops on the seat 1.

[0033] After the internal thread of workpiece 3 is screwed into the external thread 24 of threaded rod 2, it abuts against the inner positioning surface 15 of seat 1, so that the positioning hole 14 of seat 1 corresponds to the starting line of external thread 24. After the drill bit drills into the positioning hole 14 to form a through hole normal to the outer circumference of workpiece 3, the through hole of workpiece 3 is formed at the starting point of the internal thread helix of workpiece 3. After the drilling of workpiece 3 is completed, it is screwed out from the external thread 24 of threaded rod 2.

[0034] After the workpiece 3 is screwed into the external thread 24 of the threaded rod 2 and abuts against the inner positioning surface 15 of the seat 1, the head positioning surface 23 of the threaded rod 2 contacts and abuts against the end positioning surface 13 of the seat 1. The D-shaped rod positioning surface 22 of the D-shaped rod 21 cooperates with the D-shaped hole positioning surface 12 in the D-shaped hole 11 to prevent the threaded rod 2 from rotating in the seat 1. This presents a drilling structure in which the workpiece 3 is screwed onto the threaded rod 2 and positioned on the seat 1, and can be easily disassembled. This solves the problem of the existing technology using a fixed screw, support plate and nut for locking and force application, which involves many components that are difficult to disassemble.

Claims

1. A method for drilling holes on an internal thread helix, characterized in that, include: The internal thread of the workpiece (3) is screwed into the external thread (24) of the threaded rod (2), so that the axial end face of the workpiece (3) abuts against the inner positioning surface (15) of the seat (1), presenting a drilling structure in which the workpiece (3) is screwed into the threaded rod (2) and positioned on the seat (1) and can be easily disassembled. The drilling structure includes a seat (1) with a positioning hole (14); the seat (1) has a D-shaped hole (11) inside, the D-shaped hole (11) has a D-shaped hole positioning surface (12), the D-shaped hole positioning surface (12) is a plane; the seat (1) has an inner positioning surface (15), and the end face of the seat (1) away from the inner positioning surface (15) has an end positioning surface (13); The drilling structure also includes a threaded rod (2) with external threads (24); the threaded rod (2) has a D-shaped rod (21), the D-shaped rod (21) has a D-shaped rod positioning surface (22); the threaded rod (2) has a head positioning surface (23); The method is as follows: After the workpiece (3) is screwed into the external thread (24) of the threaded rod (2) and abuts against the inner positioning surface (15) of the seat (1), the head positioning surface (23) of the threaded rod (2) contacts and abuts against the end positioning surface (13) of the seat (1). The D-shaped rod positioning surface (22) of the D-shaped rod (21) cooperates with the D-shaped hole positioning surface (12) in the D-shaped hole (11) to prevent the threaded rod (2) from rotating in the seat (1). The workpiece (3) is screwed onto the threaded rod (2) and positioned on the seat (1) and can be easily disassembled. The positioning hole (14) of the seat (1) corresponds to the starting line of the external thread (24). After the drill bit drills into the positioning hole (14) to form the through hole of the axial normal of the workpiece (3), the through hole of the workpiece (3) is at the starting point of the internal thread spiral of the workpiece (3). After the workpiece (3) is drilled, it is screwed out from the external thread (24) of the threaded rod (2).

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