Tap structure with easy chip removal

Abstract

The utility model discloses a tap structure of easy chip removal relates to tap technical field, and the utility model discloses a channel is set up in the inside of tap, and the channel extends to the bottom of tap, and the bottom of tap is provided with a plurality of exhaust holes, and the exhaust hole is on the outer wall of spiral groove, and the top inner wall of channel is installed with the one -way valve for controlling the airflow to enter, the utility model discloses a plurality of exhaust holes of tap bottom setting, and its opening direction is directly opposite the outer wall of spiral groove, makes the airflow from the channel circulation to the bottom and can directly through the exhaust hole and blow to the inside of spiral groove, simultaneously, the inclined surface block of spiral groove top fixed, the airflow is guided along the spiral track of spiral groove through the inclined surface and flows, forms the directional airflow thrust, and the metal chip produced when processing the wire tooth is blown upward along the spiral groove track, avoids the chip and is accumulated on the processing hole bottom or the wire tooth gap, thereby improves the chip discharge efficiency of tap, prevents the processing hole and blocks up.

Description

Technical Field

[0001] This utility model relates to the field of tap technology, specifically to a tap structure that facilitates chip removal. Background Technology

[0002] Easy-discharge taps are thread-machining tools optimized to address the chip removal problems of traditional taps. Their core advantage lies in solving the chip clogging problem during thread machining through a special structural design. Widely used in internal thread machining of metal materials, they are indispensable key tools in industries such as machinery manufacturing, automotive, aerospace, and electronic equipment. Chinese patent application CN200920067692.6 discloses a downward-discharge spiral flute tap, including a taper shank, square head, and cutting teeth. The spiral of the chip flute in the right-hand thread tap points to the left, or... Left-hand thread taps have chip flutes that spiral to the right, resulting in smooth chip removal during tapping, reduced cutting load, and less tap breakage, leading to relatively high tapping efficiency and accuracy. However, this approach only optimizes the chip removal path by adjusting the spiral direction of the chip flutes. Essentially, it still relies on the centrifugal force and cutting thrust of the rotating tap to achieve natural chip removal without active driving force. In deep hole machining scenarios, the enclosed space inside the hole and poor airflow cause chips to easily accumulate and clog the chip flutes, preventing them from being smoothly discharged from the bottom of the hole to the outside. Frequent tool retraction and cleaning are still required, making it difficult to meet the high-efficiency machining requirements of deep hole threads. Utility Model Content

[0003] To address the problem of low chip removal efficiency due to clogging in taps, the purpose of this invention is to provide a tap structure that facilitates chip removal.

[0004] To solve the above technical problems, the present invention adopts the following technical solution: an easy-to-remove-chip tap structure, including a tap, wherein a plurality of threads and a plurality of spiral grooves are respectively provided on the bottom outer wall of the tap, a channel is opened inside the tap, the channel extends to the bottom of the tap, and a plurality of vent holes are provided at the bottom of the tap, the vent holes facing the outer wall of the spiral grooves; A one-way valve for controlling airflow is installed on the top inner wall of the channel; The outer wall of the tap is threaded with a waste collection assembly for collecting the debris blown by the spiral groove; The airflow is discharged through the exhaust port, guided by the spiral groove, and opens the bottom port of the waste collection component, blowing the debris into the interior of the waste collection component for collection.

[0005] As a preferred technical solution, a plurality of the spiral grooves are arranged in a spiral pattern on the bottom outer wall of the tap.

[0006] As a preferred technical solution, the waste collection assembly includes a collection cylinder and a threaded cap. The collection cylinder is threadedly connected to the outer wall of the tap, and the threaded cap is threadedly connected to the top port of the collection cylinder. The bottom of the collection cylinder has a port facing the spiral groove.

[0007] As a preferred technical solution, the bottom of the collection cylinder is fixedly connected to several fixing blocks, and a flap is rotatably connected between two of the fixing blocks, and the two flaps close the bottom port of the collection cylinder.

[0008] As a preferred technical solution, the rotating end of the flap near the fixed block is set as an L-shaped rod, allowing the flap to rotate 80 degrees around the fixed block.

[0009] As a preferred technical solution, an inclined block is fixedly connected to the top of the spiral groove, and the inclined block is used to guide the airflow; As a preferred technical solution, the one-way valve includes a valve body, a spring, and a valve core. The valve body is mounted on the top of the tap, and a groove is provided inside the valve body. The valve core is slidably connected to the inner wall of the groove, and the spring is installed inside the valve body for resetting the valve core.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention utilizes several vent holes at the bottom of the tap, with their openings facing the outer wall of the spiral groove. This allows airflow from the channel to the bottom to be directly blown into the spiral groove through the vent holes. Simultaneously, a fixed inclined block at the top of the spiral groove guides the airflow along its spiral trajectory, creating a directional airflow thrust. This thrust propels metal debris generated during threading upwards along the spiral groove trajectory, preventing debris accumulation at the bottom of the machining hole or in the thread gaps, thus improving the chip removal efficiency of the tap and preventing blockage of the machining hole. Furthermore, as the directional airflow carries the debris upwards along the spiral groove to the bottom of the collection cylinder, the airflow thrust acts on a flap, causing it to flip outwards. This opens the bottom port of the collection cylinder, allowing the debris to enter with the airflow. The flap then closes the bottom port again, preventing the collected debris from falling back into the machining area and collecting it, thus reducing contamination of the machining hole and machining table. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0012] Figure 2 This is a cross-sectional view of the internal structure of this utility model.

[0013] Figure 3 This utility model Figure 2 A schematic diagram of the structure at point A in the middle.

[0014] Figure 4 This utility model Figure 2 A schematic diagram of the structure at point B.

[0015] Figure 5 This is a schematic diagram of the collecting cylinder structure of this utility model.

[0016] Figure 6 This utility model Figure 5 A schematic diagram of the structure at point C.

[0017] Figure 7 This is a schematic diagram of the inclined block structure of this utility model.

[0018] In the diagram: 1. Tap; 101. Thread; 102. Vent hole; 103. Channel; 104. Spiral groove; 105. Inclined block; 2. Waste collection assembly; 201. Collection cylinder; 202. Threaded cap; 203. Fixing block; 204. Flip plate; 3. Check valve; 301. Valve body; 302. Spring; 303. Valve core. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] like Figure 1 - Figure 7 As shown, this utility model provides a tap structure with easy chip removal, which includes a tap 1. The bottom outer wall of the tap 1 is provided with a plurality of threads 101. The bottom outer wall of the tap 1 is provided with a plurality of spiral grooves 104. The inside of the tap 1 is provided with a channel 103, which extends to the bottom of the tap 1. The bottom of the tap 1 is provided with a plurality of vent holes 102, which face the outer wall of the spiral grooves 104. A one-way valve 3 for controlling airflow is installed on the top inner wall of channel 103; The outer wall of the tap 1 is threaded with a waste collection assembly 2, which is used to collect the debris blown by the spiral groove 104; The airflow is discharged through the exhaust port 102 and guided by the spiral groove 104 to open the bottom port of the waste collection component 2, so that the debris is blown into the interior of the waste collection component 2 for collection.

[0021] Several spiral grooves 104 are arranged in a spiral pattern on the bottom outer wall of the tap 1, which serves to direct the airflow.

[0022] The waste collection assembly 2 includes a collection cylinder 201 and a threaded cap 202. The collection cylinder 201 is threaded to the outer wall of the tap 1, and the threaded cap 202 is threaded to the top port of the collection cylinder 201. The bottom of the collection cylinder 201 has a port facing the spiral groove 104 for collecting waste and facilitating subsequent discharge.

[0023] Several fixing blocks 203 are fixedly connected to the bottom of the collecting cylinder 201. A flap 204 is rotatably connected between two fixing blocks 203. The two flaps 204 seal the bottom port of the collecting cylinder 201. After the debris enters the collecting cylinder 201 with the airflow, the airflow gradually diffuses and the thrust weakens. The flap 204 rotates 80 degrees and tilts slightly. Under its own gravity, it returns to its original position and re-closes the bottom port of the collecting cylinder 201 to prevent the collected debris from falling back into the processing area.

[0024] The rotating end of the flap 204 near the fixed block 203 is set as an L-shaped rod, allowing the flap 204 to rotate 80 degrees around the fixed block 203. The L-shaped rod of the rotating end of the flap 204 near the fixed block 203 can rotate 80 degrees around the fixed block, which serves as an angle limit. The airflow thrust will push the flap 204 to flip outward, opening the bottom port of the collection tube 201. After the debris enters the collection cylinder 201 with the airflow, the airflow gradually diffuses, the thrust weakens, the flap 204 rotates 80 degrees and tilts slightly, and returns to its original position under its own gravity.

[0025] A ramp block 105 is fixedly connected to the top of the spiral groove 104, and the ramp block 105 is used to guide the airflow. The one-way valve 3 includes a valve body 301, a spring 302, and a valve core 303. The valve body 301 is mounted on the top of the tap 1. A groove is provided inside the valve body 301. The valve core 303 is slidably connected to the inner wall of the groove. The spring 302 is installed inside the valve body 301 and is used to reset the valve core 303. Gas pushes the valve core 303 and squeezes the spring 302, and flows through the gap between the valve core 303 and the valve body 301 to the inside of the tap 1.

[0026] The specific working principle of this utility model is as follows: The channel 103 inside the tap 1 is used for airflow. A one-way valve 3 is installed on the inner wall of the top of the tap. The one-way valve 3 consists of a valve body 301, a spring 302, and a valve core 303. It can be used to control the airflow direction and flow rate, allowing only external airflow to enter from the top of the channel 103 in one direction. This prevents debris from flowing back into the channel 103 during the machining process and causing blockage, thus ensuring the stability and cleanliness of the airflow.

[0027] When tap 1 is working, external airflow can be provided by a pneumatic device, entering channel 103 through one-way valve 3 and extending along channel 103 to the bottom of tap 1. Several exhaust holes 102 are provided at the bottom of tap 1, with their opening direction facing the outer wall of spiral groove 104, so that the airflow flowing from channel 103 to the bottom can be directly blown into the interior of spiral groove 104 through exhaust holes 102. At the same time, the inclined block 105 fixed at the top of spiral groove 104 guides the airflow along the spiral trajectory of spiral groove 104, forming a directional airflow thrust, which blows the metal chips generated during the machining of thread 101 upward along the trajectory of spiral groove 104, preventing the chips from accumulating at the bottom of the machined hole or in the gap of thread 101.

[0028] The waste collection assembly 2 is connected to the outer wall of the tap 1 by a thread. The waste collection assembly 2 includes a collection cylinder 201 and a threaded cap 202, which together form a storage carrier. Its bottom port is dynamically opened and closed through a fixing block 203 and a flap 204 structure. When the directional airflow carrying debris flows upward along the spiral groove 104 to the bottom of the collection cylinder 201, the airflow thrust will act on the flap 204. Since the rotating end of the flap 204 near the fixed block 203 is an L-shaped rod, it can rotate 80 degrees around the fixed block 203, which plays the role of angle limit. The airflow thrust will push the flap 204 to flip outward, so that the bottom port of the collection cylinder 201 opens. After the debris enters the collection cylinder 201 with the airflow, the airflow gradually diffuses, the thrust weakens, and the flap 204 rotates 80 degrees to tilt slightly. Under its own gravity, it returns to its original position and re-closes the bottom port of the collection cylinder 201 to prevent the collected debris from falling back into the processing area. After processing is completed, the debris in the collection cylinder 201 can be directly poured out by unscrewing the threaded cap 202 to complete the waste cleaning.

[0029] In summary, this invention utilizes several vent holes at the bottom of the tap, with their openings facing the outer wall of the spiral groove. This allows airflow from the channel to the bottom to be directly blown into the spiral groove through the vent holes. Simultaneously, a fixed inclined block at the top of the spiral groove guides the airflow along its spiral trajectory, creating a directional airflow thrust. This thrust propels metal debris generated during thread machining upwards along the spiral groove trajectory, preventing debris accumulation at the bottom of the machining hole or in the thread gaps, thereby improving the chip removal efficiency of the tap and preventing blockage of the machining hole. When the directional airflow carries the debris upwards along the spiral groove to the bottom of the collection cylinder, the airflow thrust acts on a flap, causing it to flip outwards. This opens the bottom port of the collection cylinder, allowing the debris to enter with the airflow. The flap then closes the bottom port again, preventing the collected debris from falling back into the machining area and collecting it, thus reducing contamination of the machining hole and machining table.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tap structure for easy chip removal, characterized in that, The device includes a tap (1), on the bottom outer wall of the tap (1) are provided a plurality of threads (101) and a plurality of spiral grooves (104), the tap (1) has a channel (103) inside, the channel (103) extends to the bottom of the tap (1), and the bottom of the tap (1) is provided with a plurality of vent holes (102), the vent holes (102) facing the outer wall of the spiral grooves (104); A one-way valve (3) for controlling the airflow is installed on the top inner wall of the channel (103). The outer wall of the tap (1) is threaded with a waste collection assembly (2) for collecting the debris blown by the spiral groove (104); The airflow is discharged through the exhaust port (102), guided by the spiral groove (104), and opens the bottom port of the waste collection assembly (2), so that the debris is blown into the interior of the waste collection assembly (2) for collection.

2. The chip-removing tap structure as described in claim 1, characterized in that, Several spiral grooves (104) are arranged in a spiral pattern on the bottom outer wall of the tap (1).

3. The chip-removing tap structure as described in claim 1, characterized in that, The waste collection assembly (2) includes a collection cylinder (201) and a threaded cap (202). The collection cylinder (201) is threaded to the outer wall of the tap (1), and the threaded cap (202) is threaded to the top port of the collection cylinder (201). The bottom of the collection cylinder (201) has a port facing the spiral groove (104).

4. The chip-removing tap structure as described in claim 3, characterized in that, The bottom of the collection tube (201) is fixedly connected to several fixing blocks (203), and a flap (204) is rotatably connected between two fixing blocks (203). The flap (204) closes the bottom port of the collection tube (201).

5. The chip-removing tap structure as described in claim 4, characterized in that, The rotating end of the flap (204) near the fixed block (203) is set as an L-shaped rod, and the flap (204) rotates 80 degrees around the fixed block (203).

6. The chip-removing tap structure as described in claim 5, characterized in that, The top of the spiral groove (104) is fixedly connected to an inclined block (105), which is used to guide the airflow.

7. The chip-removing tap structure as described in claim 1, characterized in that, The one-way valve (3) includes a valve body (301), a spring (302) and a valve core (303). The valve body (301) is mounted on the top of the tap (1). A sliding groove is provided inside the valve body (301). The valve core (303) is slidably connected to the inner wall of the sliding groove. The spring (302) is installed inside the valve body (301) and is used to reset the valve core (303).

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