High-hardness screw tap with anti-fracture structure

Abstract

The utility model relates to the technical field of machining workpieces, and discloses a high-hardness screw tap with an anti-fracture structure, which comprises a screw tap main body, threads are arranged on the outer side wall of the top of the screw tap main body, six arc-shaped grooves are annularly formed in the outer side wall of the top of the screw tap main body at equal intervals, and a two-stage groove mechanism is arranged at the bottom of the screw tap main body. The two-stage groove mechanism comprises a first groove formed in the center of the bottom wall of the screw tap body, a second groove is formed in the inner top wall of the first groove, and internal reinforcing mechanisms are arranged in the first groove and the second groove. According to the high-hardness screw tap, the two-stage grooves are formed in the bottom of the high-hardness screw tap, the cross-shaped reinforcing ribs are arranged in the upper groove, the reinforcing sleeve is arranged in the lower groove, the reinforcing strips are annularly arranged on the outer side of the reinforcing sleeve and connected with the inner wall of the lower groove, and a structure reinforcing mechanism is arranged in the whole high-hardness screw tap; and the overall stress deformation damage resistance can be improved besides the material.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing workpieces, in particular to a high-hardness tap with an anti-fracture structure. Background Art

[0002] Taps, commonly known as thread taps and screw taps, are standard tools for machining cylindrical and conical internal threads. They are tools for machining internal threads. Taps can be divided into spiral taps and straight-edge taps according to their shapes, hand taps and machine taps according to their use environments, metric, American, and British taps according to their specifications, and imported and domestic taps according to their origins. Taps are the most important tools for manufacturing operators to machine threads.

[0003] The utility model with prior art announcement number CN209256023U relates to a high-hardness rust-proof tap, including a tap head. By arranging a coating on the tool, it effectively solves the problem of product defects such as thread irregularities, threads not meeting the go gauge, exceeding the stop gauge, and low linear speed in the batch tapping process of existing taps, which leads to increased processing costs.

[0004] However, the above-mentioned high-hardness tap still has the following problems when in use: when in use, the overall high-hardness tap adopts a solid integrated structure design, and its overall resistance to stress damage mainly relies on its material itself, and its actual ability to resist stress deformation damage is general. At the same time, the matching connection structure at the bottom is single, and it cannot be combined and installed with different connection structures. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a high-hardness tap with an anti-fracture structure, which solves the problems raised by the background technology.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-hardness tap with an anti-fracture structure, comprising a tap body, a thread is provided on the top outer wall of the tap body, and six arc-shaped grooves are provided in an annular and equidistant manner on the top outer wall of the tap body, a two-stage groove mechanism is provided at the bottom of the tap body, the two-stage groove mechanism comprises a first groove provided at the center of the bottom wall of the tap body, a second groove is provided on the top wall inside the first groove, an internal reinforcement mechanism is provided in the first groove and the second groove, the second groove is a square groove, the internal reinforcement mechanism comprises a cross reinforcement rib fixedly connected between the middle parts of the inner walls around the second groove, the bottom wall of the cross reinforcement rib is fixedly connected to a reinforcement sleeve, and the outer wall of the reinforcement sleeve is provided with a group of reinforcement strips connected to the inner wall of the first groove.

[0009] As a further solution of the utility model: the bottom wall of the reinforcement sleeve is kept flush with the bottom wall of the tap body, the bottom of the inner wall of the reinforcement sleeve is provided with a thread groove, and the outer wall of the bottom of the tap body is provided with four matching grooves in an annular shape and at equal distances.

[0010] As a further solution of the utility model: the first groove is a cylindrical groove, a group of the reinforcement strips consists of four and are arranged in a circular shape with equal distances, the four reinforcement strips are fixedly connected to the inner wall of the first groove at one end away, and the outer wall of the middle part of the tap body is fixedly welded with multiple reinforcement patches in a circular shape with equal distances.

[0011] As a further solution of the utility model: a circular groove is opened at the center of the top wall of the tap body, a circular hole is opened at the center of the bottom wall of the circular groove, and the tap body and the reinforcement patch are both made of carbon tool steel.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. In the utility model, a two-level groove is opened at the bottom of the high-hardness tap, a cross reinforcing rib is arranged in the upper groove, and a reinforcing sleeve is arranged in the lower groove, and a plurality of reinforcing strips are arranged in an annular manner on the outer side of the reinforcing sleeve and connected with the inner wall of the lower groove. A structural reinforcement mechanism is arranged inside the whole high-hardness tap, which can improve the overall resistance to stress deformation damage in addition to the material.

[0014] 2. In the utility model, four matching grooves are provided in an annular shape with equal distances on the outer side of the bottom of the high-hardness tap, and the bottom wall of the reinforcement sleeve is kept flush with the bottom of the high-hardness tap. At the same time, a threaded groove is provided on the bottom of the inner wall of the reinforcement sleeve. The overall high-hardness tap can be installed by the four matching grooves in combination with the fixing assembly, and can also be fixed and installed by the middle threaded groove in combination with bolts, that is, it can be installed in combination with different connection structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The overall three-dimensional Figure 1 ;

[0016] Figure 2 The overall three-dimensional Figure 2 ;

[0017] Figure 3 It is a cutaway stereoscopic view of the tap body of the utility model;

[0018] Figure 4 It is a three-dimensional diagram of the internal reinforcement mechanism of the utility model.

[0019] In the figure: 1. tap body; 2. reinforcement patch; 3. matching groove; 4. arc groove; 5. circular groove; 6. circular hole; 7. first groove; 8. second groove; 9. internal reinforcement mechanism; 91. cross reinforcement rib; 92. reinforcement sleeve; 93. reinforcement strip. DETAILED DESCRIPTION

[0020] 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 in 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.

[0021] See also Figures 1 to 4 In an embodiment of the utility model, a high-hardness tap with an anti-fracture structure includes a tap body 1, a thread is provided on the top outer wall of the tap body 1, and six arc grooves 4 are provided on the top outer wall of the tap body 1 in an annular shape with equal distances, a two-stage groove mechanism is provided at the bottom of the tap body 1, and the two-stage groove mechanism includes a first groove 7 provided at the center of the bottom wall of the tap body 1, a second groove 8 is provided on the top wall of the first groove 7, an internal reinforcement mechanism 9 is provided in the first groove 7 and the second groove 8, the second groove 8 is a square groove, and the internal reinforcement mechanism 9 includes a fixed connection to the second groove A cross reinforcing rib 91 is provided between the middle parts of the inner walls around the groove 8, and a reinforcing sleeve 92 is fixedly connected to the bottom wall of the cross reinforcing rib 91. A group of reinforcing strips 93 are provided on the outer wall of the reinforcing sleeve 92 and are connected to the inner wall of the first groove 7. The bottom of the high-hardness tap is provided with two-level grooves, and a cross reinforcing rib 91 is provided in the upper groove. At the same time, a reinforcing sleeve 92 is provided in the lower groove, and a plurality of reinforcing strips 93 are provided in an annular manner on the outer side of the reinforcing sleeve 92 and are connected to the inner wall of the lower groove. The overall high-hardness tap is provided with a structural reinforcement mechanism inside, which can improve the overall resistance to stress deformation damage in addition to the material.

[0022] The bottom wall of the reinforcement sleeve 92 is kept flush with the bottom wall of the tap body 1, and a thread groove is provided at the bottom of the inner wall of the reinforcement sleeve 92. The outer wall of the bottom of the tap body 1 is provided with four matching grooves 3 in a circular shape with equal distances. The outer side of the bottom of the high hardness tap is provided with four matching grooves 3 in a circular shape with equal distances. At the same time, the bottom wall of the reinforcement sleeve 92 is kept flush with the bottom of the high hardness tap, and a thread groove is provided at the bottom of the inner wall of the reinforcement sleeve 92. The overall high hardness tap can be installed by cooperating with the fixing assembly through the four matching grooves 3, and can also be fixed and installed by cooperating with bolts through the middle thread groove, that is, it can be installed in combination with different connection structures.

[0023] The first groove 7 is a cylindrical groove, and a group of reinforcement strips 93 consists of four and are arranged in a circular shape with equal distance. The four reinforcement strips 93 are fixedly connected to the inner wall of the first groove 7 at one end away from each other. A plurality of reinforcement patches 2 are fixedly welded to the outer wall of the middle part of the tap body 1 in a circular shape with equal distance, which further reinforces the structure of the tap body 1.

[0024] A circular groove 5 is provided at the center of the top wall of the tap body 1 , and a circular hole 6 is provided at the center of the bottom wall of the circular groove 5 . The tap body 1 and the reinforcement patch 2 are both made of carbon tool steel with slightly better toughness.

[0025] The working principle of the utility model is as follows: a two-level groove is provided at the bottom of the high-hardness tap, a cross reinforcing rib 91 is provided in the upper groove, a reinforcing sleeve 92 is provided in the lower groove, and a plurality of reinforcing strips 93 are provided in a ring on the outer side of the reinforcing sleeve 92 and connected to the inner wall of the lower groove, a structural reinforcement mechanism is provided inside the overall high-hardness tap, which can improve the overall resistance to stress deformation and damage in addition to the material, and four matching grooves 3 are provided in a ring-shaped and equidistant shape on the outer side of the bottom of the high-hardness tap, and the bottom wall of the reinforcing sleeve 92 is kept flush with the bottom of the high-hardness tap, and a threaded groove is provided at the bottom of the inner wall of the reinforcing sleeve 92, the overall high-hardness tap can be installed by cooperating with the fixing assembly through the four matching grooves 3, and can also be fixed and installed by cooperating with bolts through the middle threaded groove, that is, it can be combined and installed in combination with different connection structures.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-hardness tap with an anti-fracture structure, comprising a tap body (1); Features: The outer wall of the top of the tap body (1) is provided with a thread, and the outer wall of the top of the tap body (1) is provided with six arc grooves (4) in an annular shape and at equal distances, and the bottom of the tap body (1) is provided with a two-stage groove mechanism; The two-stage groove mechanism comprises a first groove (7) formed at the center of the bottom wall of the tap body (1); a second groove (8) is formed on the top wall of the first groove (7); and internal reinforcement mechanisms (9) are provided in the first groove (7) and the second groove (8); The second groove (8) is a square groove, and the internal reinforcement mechanism (9) comprises a cross reinforcement rib (91) fixedly connected to the middle of the inner side walls around the second groove (8), the bottom wall of the cross reinforcement rib (91) is fixedly connected to a reinforcement sleeve (92), and the outer side wall of the reinforcement sleeve (92) is provided with a group of reinforcement strips (93) connected to the inner wall of the first groove (7).

2. A high-hardness tap with an anti-fracture structure according to claim 1, characterized in that: The outer side wall of the middle part of the tap body (1) is in a ring shape and is equidistantly fixedly welded with a plurality of reinforcing patches (2).

3. The high-hardness tap with an anti-fracture structure according to claim 1, characterized in that: The first groove (7) is a cylindrical groove, a group of the reinforcement strips (93) consists of four and are arranged in a circular shape with equal distances, and the four reinforcement strips (93) are fixedly connected to the inner wall of the first groove (7) at one end away from each other.

4. The high-hardness tap with an anti-fracture structure according to claim 1, characterized in that: The bottom wall of the reinforcement sleeve (92) is kept flush with the bottom wall of the tap body (1), and a thread groove is provided at the bottom of the inner side wall of the reinforcement sleeve (92).

5. The high-hardness tap with an anti-fracture structure according to claim 1, characterized in that: The outer side wall of the bottom of the tap body (1) is provided with four matching grooves (3) in an annular shape and at equal distances.

6. The high-hardness tap with an anti-fracture structure according to claim 1, characterized in that: The tap body (1) and the reinforcement patch (2) are both made of carbon tool steel.

7. The high-hardness tap with an anti-fracture structure according to claim 1, characterized in that: A circular groove (5) is provided at the center of the top wall of the tap body (1), and a circular hole (6) is provided at the center of the bottom wall of the circular groove (5).

Images