Combined screw tap with screw tap head convenient to replace

Abstract

The utility model relates to the technical field of screw taps, in particular to a combined screw tap convenient to replace a screw tap head, which comprises a connecting seat and a tap head, a square connecting groove is arranged at the lower end of the connecting seat, the tap head is inserted into the inner side of the square connecting groove, and a positioning magnetic block is fixed on the inner side of a groove at the top end of the square connecting groove. And the positioning magnetic block is in adsorption connection with the conical head. After the conical head is inserted into the inner side of the square connecting groove through the square connecting column, the conical head is preliminarily positioned by adsorbing the square connecting column through the positioning magnetic block, and the square frame edge downwards abuts against the inclined face of the rhombic positioning block, so that the rhombic positioning block can be pushed to be inwards inserted into the inner side of the positioning groove along the mounting opening to be positioned; the square frame is moved upwards along the connecting base, after the rhombic positioning block is not connected with the square frame in an abutting mode, the rhombic positioning block can be driven to move outwards along the installation opening to be separated from the positioning groove through elasticity of the spring, the conical head can be pulled out with the hand, and therefore installation and replacement of the conical head can be facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of taps, in particular to a combined tap that is convenient for replacing the tap head. Background Art

[0002] A tap is a tool used to create internal threads. Based on shape, it can be categorized as spiral-fluted taps, angled-edge taps, straight-fluted taps, and pipe thread taps. Based on usage, it can be divided into hand taps and machine taps. Based on specifications, it can be categorized into metric, American, and imperial taps. Taps are the most common tool used by manufacturing operators for threading.

[0003] A tap is a tool for machining medium and small-sized internal threads. It has grooves along the axial direction and is also called a screw tap. It has a simple structure and is easy to use. It can be operated manually or on a machine tool, and is widely used in production. For small-sized internal threads, a tap is almost the only machining tool. Tapping is a relatively difficult machining process because the tap is almost buried in the workpiece during cutting. The machining load per tooth is greater than that of other tools. In addition, the contact surface between the tap and the workpiece along the thread is very large. When cutting the thread, it must accommodate and remove chips. Taps are divided into straight groove taps, spiral groove taps, and spiral point taps (tip taps) according to their shape.

[0004] Taps are the most mainstream processing tools used by manufacturing operators for tapping. Operators need to prepare multiple types of taps when encountering complex environments. Common tap heads cannot be disassembled and replaced, and common taps cannot be replaced with multiple tap heads according to actual conditions. Therefore, improvements are needed to address the above issues to meet market demand.

[0005] To this end, we propose a combined tap that is easy to replace the tap head to solve the above-mentioned problems. Utility Model Content

[0006] The purpose of the utility model is to solve the above-mentioned shortcomings in the prior art and to propose a combined tap that is easy to replace the tap head.

[0007] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0008] A combined tap is designed for easy replacement of the tap head, comprising a connecting seat and a tap head. A square connecting groove is provided at the lower end of the connecting seat, the tap head is inserted into the inner side of the square connecting groove, a positioning magnetic block is fixed to the inner side of the groove at the top end of the square connecting groove, and the positioning magnetic block is adsorbed and connected to the tap head.

[0009] Furthermore, the inner wall of the square connecting groove is symmetrically provided with mounting openings, and the number of the mounting openings is 2. A diamond-shaped positioning block is slidingly provided on the inner side of the mounting opening, and a spring is fixed on the diamond-shaped positioning block, and the other end of the spring abuts against the mounting opening.

[0010] Furthermore, a square frame is slidably sleeved on the connecting seat, and the inner wall of the square frame abuts against the diamond-shaped positioning block.

[0011] Furthermore, a square connecting column is provided at the upper end of the cone head, and the square connecting column is inserted into the inner side of the square connecting groove. Positioning grooves are symmetrically provided on the surface of the square connecting column, and the positions of the positioning grooves are symmetrical with the mounting port. There are two positioning grooves, and a diamond-shaped positioning block is inserted into the inner side of the positioning groove.

[0012] Furthermore, a frame-shaped magnetic strip is fixed to the lower end of the square frame, and the frame-shaped magnetic strip is adsorbed and connected to the connecting seat.

[0013] Furthermore, fan blades are symmetrically arranged on the surface of the square frame, and the fan blades are arranged on four sides of the square frame.

[0014] The utility model provides a combined tap which is convenient for replacing the tap head. The beneficial effect is that after the tap head is inserted into the inner side of the square connecting groove through the square connecting post, the square connecting post is attracted by the positioning magnetic block to preliminarily position the tap head. The square frame abuts the inclined surface of the diamond positioning block downward, which can push the diamond positioning block to be inserted into the inner side of the positioning groove along the installation opening for positioning. When the tap head needs to be replaced, the square frame is moved upward along the connecting seat. When the diamond positioning block loses the abutment of the square frame, the elasticity of the spring can drive the diamond positioning block to move outward along the installation opening and disengage from the positioning groove. The tap head can be pulled out by hand, thereby facilitating the installation and replacement of the tap head. When the connecting seat rotates, it drives the fan blades to rotate to blow air to cool the processed area. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a cross-sectional view of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the connecting seat of the utility model;

[0017] Figure 3 This is a schematic diagram of the cone head of the utility model;

[0018] Figure 4 This is a cross-sectional schematic diagram of the connecting seat of the utility model;

[0019] In the figure: 1. Connecting seat; 11. Square connecting groove; 12. Positioning magnetic block; 13. Mounting port; 14. Diamond positioning block; 15. Spring; 16. Square frame; 161. Frame-shaped magnetic strip; 162. Fan blade; 2. Cone head; 21. Square connecting column; 22. Positioning groove. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] Reference Figure 1-4 A combined tap for easy replacement of tap heads includes a connecting base 1 and a taper head 2. A square connecting groove 11 is provided at the lower end of the connecting base 1. The taper head 2 is inserted into the inner side of the square connecting groove 11. A positioning magnetic block 12 is fixed to the inner side of the groove at the top of the square connecting groove 11. The arrangement of the positioning magnetic block 12 facilitates the taper head 2 to be inserted into the inner side of the square connecting groove 11 through the square connecting column 21 and then adsorb the square connecting column 21 to perform preliminary positioning of the taper head 2. The positioning magnetic block 12 is adsorbed and connected to the taper head 2.

[0022] In detail, the inner wall of the square connecting groove 11 is symmetrically provided with mounting openings 13, and the number of the mounting openings 13 is 2. The position of the mounting openings 13 corresponds to the positioning groove 22. A diamond positioning block 14 is slidingly provided on the inner side of the mounting opening 13. The inclined surface of the diamond positioning block 14 facilitates the square frame 16 to move downward along the connecting seat 1 to push the inclined surface of the diamond positioning block 14 so that it moves inward along the mounting opening 13 and inserts into the inner side of the positioning groove 22. A spring 15 is fixed on the diamond positioning block 14, and the other end of the spring 15 abuts against the mounting opening 13. Due to the elasticity of the spring 15, the diamond positioning block 14 moves outward along the mounting opening 13 and disengages from the positioning groove 22 after losing the abutment of the square frame 16.

[0023] Furthermore, a square frame 16 is slidably sleeved on the connecting seat 1, and the inner wall of the square frame 16 abuts against the diamond positioning block 14. The square frame 16 abuts the inclined surface of the diamond positioning block 14 downward along the connecting seat 1, which can push the diamond positioning block 14 inward along the mounting opening 13 to insert into the inner side of the positioning groove 22. When the diamond positioning block 14 loses the abutment of the square frame 16, the elasticity of the spring 15 can drive the diamond positioning block 13 to move outward along the mounting opening 13 to disengage from the positioning groove 22, so that the cone head 2 inside the square connecting groove 11 can be pulled out by hand.

[0024] Furthermore, a square connecting column 21 is provided at the upper end of the cone head 2, and the square connecting column 21 is inserted into the inner side of the square connecting groove 11. The square connecting column 21 is inserted into the inner side of the square connecting groove 11 and can drive the square connecting column 21 and the cone head 2 to rotate when the connecting seat 1 rotates. The surface of the square connecting column 21 is symmetrically provided with positioning grooves 22, and the positioning grooves 22 are symmetrical with the position of the mounting port 13. After the square connecting column 21 is inserted into the inner side of the square connecting groove 11, the positioning groove 22 is located on one side of the mounting port 13. The number of the positioning grooves 22 is 2, and a diamond positioning block 14 is inserted into the inner side of the positioning groove 22. The diamond positioning block 14 is inserted into the inner side of the positioning groove 22 to prevent the square connecting column 21 from falling from the inner side of the square connecting groove 11.

[0025] In general, a frame-shaped magnetic strip 161 is fixed to the lower end of the square frame 16, and the frame-shaped magnetic strip 161 is bonded to the lower end of the square frame 16. The frame-shaped magnetic strip 161 is adsorbed and connected to the connecting seat 1. The square frame 16 adsorbs the connecting seat 1 through the frame-shaped magnetic strip 161 to prevent the square frame 16 from moving up and down along the connecting seat 1 during rotation.

[0026] Finally, the surface of the square frame 16 is symmetrically provided with fan blades 162. The fan blades 162 are provided on the four sides of the square frame 16. The number of the fan blades 162 is 4. When the connecting seat 1 rotates, the square frame 16 is slidably sleeved on its surface, so that the square frame 16 can be driven to rotate. When the square frame 16 rotates, the fan blades 162 are driven to rotate to blow air to cool the processing area.

[0027] Working method: When the connecting seat 1 is connected to the cone head 2, after the cone head 2 is inserted into the inner side of the square connecting groove 11 through the square connecting column 21, the square connecting column 21 is adsorbed by the positioning magnetic block 12 to perform preliminary positioning of the cone head 2, and then the square frame 16 is used to abut the inclined surface of the diamond positioning block 14 downward along the connecting seat 1, which can push the diamond positioning block 14 to be inserted into the inner side of the positioning groove 22 along the mounting opening 13 for positioning. When the cone head 2 needs to be replaced, the square frame 16 is moved upward along the connecting seat 1. When the diamond positioning block 14 loses the abutment of the square frame 16, the elasticity of the spring 15 can drive the diamond positioning block 13 to move outward along the mounting opening 13 to disengage from the positioning groove 22, so that the cone head 2 inside the square connecting groove 11 can be pulled out by hand, which can facilitate the installation and replacement of the cone head 2;

[0028] When the connecting base 1 rotates, the square frame 16 is slidably sleeved on its surface, thereby driving the square frame 16 to rotate. When the square frame 16 rotates, the fan blades 162 are driven to rotate to blow air to cool the processing area.

[0029] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A combined tap for facilitating replacement of the tap head, comprising a connecting seat (1) and a tap head (2), characterized in that: A square connection groove (11) is provided at the lower end of the connection seat (1), a cone head (2) is inserted into the inner side of the square connection groove (11), a positioning magnetic block (12) is fixed to the inner side of the groove at the top end of the square connection groove (11), and the positioning magnetic block (12) is adsorbed and connected to the cone head (2).

2. The combined tap for facilitating replacement of the tap head according to claim 1, characterized in that: The inner wall of the square connection groove (11) is symmetrically provided with mounting openings (13), the number of the mounting openings (13) being two, a diamond-shaped positioning block (14) is slidably provided inside the mounting opening (13), a spring (15) is fixed on the diamond-shaped positioning block (14), and the other end of the spring (15) is in contact with the mounting opening (13).

3. The combined tap for facilitating replacement of the tap head according to claim 1, characterized in that: A square frame (16) is slidably sleeved on the connecting seat (1), and the inner wall of the square frame (16) abuts against the diamond-shaped positioning block (14).

4. The combined tap for facilitating replacement of the tap head according to claim 1, characterized in that: A square connecting column (21) is arranged at the upper end of the cone head (2), the square connecting column (21) is inserted into the inner side of the square connecting groove (11), and a positioning groove (22) is symmetrically arranged on the surface of the square connecting column (21), the positions of the positioning groove (22) and the mounting opening (13) are symmetrical, the number of the positioning grooves (22) is 2, and a diamond-shaped positioning block (14) is inserted into the inner side of the positioning groove (22).

5. The combined tap for facilitating replacement of the tap head according to claim 3, characterized in that: A frame-shaped magnetic strip (161) is fixed to the lower end of the square frame (16), and the frame-shaped magnetic strip (161) is adsorbed and connected to the connection seat (1).

6. The combined tap for facilitating replacement of the tap head according to claim 3, characterized in that: The surface of the square frame (16) is symmetrically provided with fan blades (162), and the fan blades (162) are arranged on four sides of the square frame (16).

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