A high-hardness tap with replaceable connector

Abstract

This application belongs to the field of tap technology and discloses a high-hardness tap with a replaceable connector, including a tapping head assembly. A connector is disposed on the top of the tapping head assembly, and a rod is fixed to the top of the tapping head assembly. A slot for insertion and connection with the rod is formed at the bottom of the connector. A limit groove is formed on the side wall of the rod. A limit block is slidably disposed on the connector and inserted and connected to the limit groove. A moving component for driving the limit block to move is provided on the connector. The moving component includes an internally threaded tube, an adjusting block, and a connecting shaft. The internally threaded tube is threaded to the connector and coaxially disposed on the connector. The adjusting block is fixed to the top of the internally threaded tube and has a ring structure. The connecting shaft is disposed on the limit block. This application improves the speed of tapping head assembly replacement by setting the connector, rod, slot, limit groove, limit block, and moving component.

Description

Technical Field

[0001] This utility model relates to the field of tap technology, and in particular to a high-hardness tap with a replaceable connector. Background Technology

[0002] A tap is a tool for machining internal threads. According to its shape, it can be divided into spiral flute taps, angled taps, straight flute taps, and pipe thread taps. According to its usage environment, it can be divided into hand taps and machine taps. According to its specifications, it can be divided into metric, US, and imperial taps.

[0003] Chinese utility model patent CN222679730U discloses a high-hardness tap with a replaceable connector, comprising a tap head, a connecting rod, and a connecting seat. A first mounting plate is installed at the front end of the connecting rod, and a second mounting plate is installed at the rear end of the tap head. The second mounting plate is provided with four fixing bolts. By unscrewing the four fixing bolts, the first and second mounting plates can be disassembled, thereby enabling the tap head to be replaced.

[0004] The high-hardness tap with replaceable connector described above requires the four fixing bolts to be disassembled or installed sequentially during the tap replacement process, which is cumbersome and does not improve the tap replacement speed. Utility Model Content

[0005] To address the aforementioned problems, this invention provides a high-hardness tap with a replaceable connector.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a high-hardness tap with a replaceable connector, comprising a tapping head assembly, a connector being provided above the tapping head assembly, a rod being fixed to the top of the tapping head assembly, a slot being provided at the bottom of the connector for insertion and connection with the rod, a limiting groove being provided on the side wall of the rod, a limiting block being slidably provided on the connector for insertion and connection with the limiting groove, and a moving component being provided on the connector for driving the limiting block to move.

[0007] By adopting the above technical solution, the moving component first drives the limiting block to move away from the limiting groove until the limiting groove separates from the slot. Then, the tapping head assembly and the connector move away from each other until the insert rod separates from the slot. At this point, the insert rod on the new tapping head assembly can be inserted into the slot until the insert rod can no longer move. Finally, the moving component drives the limiting block to move closer to the limiting groove until the limiting block is inserted into the limiting groove, thereby completing the purpose of replacing the tapping head assembly. The operation is relatively simple and convenient, and the speed of tapping head assembly replacement is improved.

[0008] Furthermore, the moving component includes an internally threaded tube threaded to the connector head and coaxially arranged with the connector head, an adjusting block fixed to the top of the internally threaded tube and having an annular structure, and a connecting shaft arranged on the limiting block. The adjusting block is slidably sleeved on the connector head, and the top of the adjusting block is provided with an adjusting through hole that is slidably connected to the connecting shaft. The adjusting through hole is eccentrically arranged with the adjusting block.

[0009] By adopting the above technical solution, the internal threaded tube is rotated and its lifting and lowering motion is made so that the adjusting block connected to the internal threaded tube is lifted and rotated. Since the adjusting through hole is slidably connected to the connecting shaft and the adjusting through hole is eccentrically set with the adjusting block, the connecting shaft and the limiting block connected to the connecting shaft move in the direction away from or close to the limiting groove, so as to ensure the operation of replacing the tapping head assembly.

[0010] Furthermore, the tapping head assembly includes a first tapping head fixed to the lower end of the insert rod and coaxially arranged with the internal threaded tube, and a second tapping head fixed to the lower end of the first tapping head and coaxially arranged with the first tapping head.

[0011] Furthermore, multiple anti-slip strips are fixed on the side wall of the internally threaded tube.

[0012] By adopting the above technical solution, the probability of slippage during the rotation of the internally threaded pipe is reduced.

[0013] Furthermore, an auxiliary groove is provided on the side wall of the internally threaded tube, and the auxiliary groove passes through the corresponding anti-slip strip.

[0014] By adopting the above technical solution, the appropriate extension rod is inserted into the auxiliary groove so that the operator can rotate the internally threaded tube.

[0015] Furthermore, the outer diameter of the second tapping head gradually decreases from top to bottom.

[0016] By adopting the above technical solution, the feed rate of the second tapping head during tapping is reduced, thereby improving the tapping accuracy.

[0017] Furthermore, the connecting shaft is rotatably mounted on the limiting block.

[0018] By adopting the above technical solution, the friction between the adjusting block and the adjusting through hole is reduced.

[0019] In summary, this utility model has the following beneficial effects: In this application, by setting a connector, a plug, a slot, a limiting groove, a limiting block, and a moving component, the speed of replacing the tapping head assembly is improved. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0021] Figure 2 This is an exploded view of an embodiment of the present invention to highlight the connection structure between the first tapping head and the insert rod;

[0022] Figure 3 This is a schematic diagram illustrating the connection structure between the connecting shaft and the adjusting through hole in an embodiment of this utility model;

[0023] Figure 4 This is a cross-sectional schematic diagram of an embodiment of the present invention to highlight the connection structure between the limiting block and the limiting groove.

[0024] In the diagram: 1. Tapping head assembly; 11. First tapping head; 12. Second tapping head; 2. Connector; 3. Insert rod; 4. Slot; 5. Limiting slot; 6. Limiting block; 7. Moving component; 71. Internal threaded tube; 72. Adjusting block; 73. Connecting shaft; 74. Adjusting through hole; 8. Anti-slip strip; 9. Auxiliary slot. Detailed Implementation

[0025] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0026] like Figure 1-4 As shown in the illustration, this application discloses a high-hardness tap with a replaceable connector, including a tapping head assembly 1, a connector 2, a insert rod 3, and a moving assembly 7. The tapping head assembly 1 is heat-treated and carbonized to improve its overall hardness. The connector 2 is positioned above the tapping head assembly 1 (this connector 2 is used to install on the rotating end of a tapping machine; the specific installation structure is prior art and will not be described in detail here). The insert rod 3 is fixed to the top of the tapping head assembly 1, and the bottom of the connector 2 has a slot 4 for inserting and connecting with the insert rod 3. A limiting groove 5 is formed on the side wall of the insert rod 3, and a limiting block 6 is slidably disposed on the connector 2 and inserted and connected with the limiting groove 5. First, the moving component 7 drives the limiting block 6 to move away from the limiting groove 5 until the limiting groove 5 separates from the slot 4. Then, the tapping head assembly 1 and the connector 2 move away from each other until the insertion rod 3 separates from the slot 4. At this point, the insertion rod 3 on the new tapping head assembly 1 can be inserted into the slot 4 until the insertion rod 3 can no longer move. Finally, the moving component 7 drives the limiting block 6 to move closer to the limiting groove 5 until the limiting block 6 is inserted into the limiting groove 5, thus completing the purpose of replacing the tapping head assembly 1. The operation is relatively simple and convenient, improving the speed of replacing the tapping head assembly 1.

[0027] The movable component 7 is mounted on the connector 2 and is used to drive the limiting block 6 to move. The movable component 7 includes an internally threaded tube 71, an adjusting block 72, and a connecting shaft 73. The internally threaded tube 71 is threadedly connected to the connector 2 and is coaxially arranged with the connector 2. The adjusting block 72 is fixed to the top of the internally threaded tube 71 and has an annular structure. The connecting shaft 73 is mounted on the limiting block 6. The adjusting block 72 is slidably sleeved on the connector 2. The top of the adjusting block 72 has an adjusting through hole 74 that is slidably connected to the connecting shaft 73. The adjusting through hole 74 is eccentrically arranged with the adjusting block 72. Rotating the internally threaded tube 71 and causing it to move up and down causes the adjusting block 72 connected to the internally threaded tube 71 to move up and down and rotate. Because the adjusting through hole 74 is slidably connected to the connecting shaft 73 and is eccentrically arranged with the adjusting block 72, the connecting shaft 73 and the limiting block 6 connected to the connecting shaft 73 both move in a direction away from or towards the limiting groove 5, ensuring the operation of replacing the tapping head assembly 1.

[0028] The tapping head assembly 1 includes a first tapping head 11 and a second tapping head 12. The first tapping head 11 is fixed to the lower end of the insert rod 3 and is coaxially arranged with the internal thread tube 71. The second tapping head 12 is fixed to the lower end of the first tapping head 11 and is coaxially arranged with the first tapping head 11 (the outer diameter of the first tapping head 11 is equal to the maximum outer diameter of the second tapping head 12).

[0029] Multiple anti-slip strips 8 are fixed on the side wall of the internally threaded tube 71. This reduces the probability of slippage when the internally threaded tube 71 is rotated.

[0030] An auxiliary groove 9 is provided on the side wall of the internally threaded tube 71, and the corresponding anti-slip strip 8 passes through the auxiliary groove 9. By inserting a suitable extension rod into the auxiliary groove 9, the operator can rotate the internally threaded tube 71.

[0031] The outer diameter of the second tapping head 12 gradually decreases from top to bottom. This reduces the feed rate of the second tapping head 12 during tapping, thereby improving tapping accuracy.

[0032] The connecting shaft 73 is rotatably mounted on the limiting block 6. This reduces the friction between the adjusting block 72 and the adjusting through hole 74.

[0033] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A high hardness tap with replaceable head, comprising a tapping head assembly (1), characterized in that: A connector (2) is provided above the tapping head assembly (1). A plug rod (3) is fixed on the top of the tapping head assembly (1). A slot (4) is provided at the bottom of the connector (2) to be inserted and connected to the plug rod (3). A limit groove (5) is provided on the side wall of the plug rod (3). A limit block (6) is slidably provided on the connector (2) to be inserted and connected to the limit groove (5). A moving component (7) is provided on the connector (2) to drive the limit block (6) to move.

2. The high hardness tap with replaceable tip according to claim 1, characterized in that: The moving component (7) includes an internally threaded tube (71) threaded onto the connector (2) and coaxially arranged with the connector (2), an adjusting block (72) fixed to the top of the internally threaded tube (71) and having an annular structure, and a connecting shaft (73) arranged on the limiting block (6). The adjusting block (72) is slidably sleeved on the connector (2), and the top of the adjusting block (72) is provided with an adjusting through hole (74) slidably connected to the connecting shaft (73). The adjusting through hole (74) is eccentrically arranged with the adjusting block (72).

3. The high hardness tap with replaceable tip according to claim 1, characterized in that: The tapping head assembly (1) includes a first tapping head (11) fixed to the lower end of the insert rod (3) and coaxially arranged with the internal threaded tube (71) and a second tapping head (12) fixed to the lower end of the first tapping head (11) and coaxially arranged with the first tapping head (11).

4. The high hardness tap with replaceable tip according to claim 2, characterized in that: Multiple anti-slip strips (8) are fixed on the side wall of the internally threaded tube (71).

5. The high hardness tap with replaceable tip according to claim 4, characterized in that: An auxiliary groove (9) is provided on the side wall of the internally threaded tube (71), and the auxiliary groove (9) passes through the corresponding anti-slip strip (8).

6. The high hardness tap with replaceable tip according to claim 3, characterized in that: The outer diameter of the second tapping head (12) gradually decreases from top to bottom.

7. The high hardness tap with replaceable tip according to claim 2, characterized in that: The connecting shaft (73) is rotatably mounted on the limiting block (6).

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