Variable-angle spiral fluted tap

Abstract

The utility model discloses an angle-variable spiral fluted tap, which relates to the technical field of spiral fluted taps and comprises a tap clamping component and a spiral fluted tap component, the tap clamping component comprises a holder body and a stop block, the stop block is fixedly connected to the top of the holder body, and the holder body is fixedly connected with the spiral fluted tap component. The spiral fluted tap assembly comprises a tap rod and a tap clamping end, the tap clamping end is fixedly connected to the top of the tap rod, and the spiral fluted tap assembly is fixedly installed in the tap clamping assembly through the tap clamping end. Under the combined action of the spiral chip removal groove and the waste chip check ring, when chips generated in the tapping operation are discharged from the spiral chip removal groove to the groove tail, namely the joint of the screw tap thread and the screw tap rod, the closer the structure of the waste chip check ring is, the smaller the radius is, and the smaller the structure of the waste chip check ring is, the closer the screw tap thread is, the smaller the radius is. The scrap check ring can enable the cuttings to diffuse towards the periphery of the screw tap rod, so that the cuttings are far away from the screw tap rod, and the cuttings cannot wind the screw tap rod.

Description

Technical Field

[0001] The utility model relates to the technical field of spiral groove taps, in particular to a variable-angle spiral groove tap. Background Art

[0002] Threaded holes are structures frequently encountered in the field of mechanical processing. They are generally processed with taps. When the threaded hole is a through hole, a straight groove tap is generally used. When the threaded hole is a blind hole, a spiral groove tap is generally used. When processing blind hole threads, a spiral groove tap with upper chip removal is required. The spiral direction of the spiral groove is the same as the direction of the tap's rotation and cutting, which is commonly known as right-handed right-edge. The chips cut off are discharged upward along the spiral groove.

[0003] However, existing spiral groove taps still have certain defects in the processing process. For example, when conventional spiral taps are tapping at high speed, due to the spiral tap, the chips discharged during processing will move in the groove along the direction of the groove toward the back of the shank. When the chips reach the end of the groove, that is, the connection between the tooth and the shank, as the spiral groove disappears, the chips are very likely to deform and wrap around the shank, which not only affects the tapping operation and easily causes thread deviation, but also because the chips are entangled and cover the threaded hole, the cutting fluid cannot fully reach the processing area, resulting in poor cooling and lubrication, easily causing abnormal temperature rise in the processing area, reducing tool life, affecting thread quality, and easily causing chips to get stuck and break the tap, reducing processing efficiency and making it inconvenient for promotion and use.

[0004] In order to solve this problem, the present application provides a variable-angle spiral groove tap. Utility Model Content

[0005] The purpose of the utility model is to provide a variable-angle spiral groove tap to solve the problem raised in the above-mentioned background technology that when the chips reach the end of the groove, as the spiral groove disappears, the chips are very likely to deform and wrap around the shank, which not only affects the tapping operation, but also because the chips wrap around and cover the threaded hole, the cutting fluid cannot fully reach the processing area, resulting in poor cooling and lubrication, and poor use effect.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A variable-angle spiral groove tap comprises a tap clamping assembly and a spiral groove tap assembly, wherein the tap clamping assembly comprises a clamping body and a stopper, wherein the stopper is fixedly connected to the top of the clamping body; the spiral groove tap assembly comprises a tap rod and a tap clamping end, wherein the tap clamping end is fixedly connected to the top of the tap rod; and the spiral groove tap assembly is fixedly mounted inside the tap clamping assembly via the tap clamping end.

[0008] A further improvement of the technical solution of the present utility model is that loading and unloading grooves are provided on both sides of the clamp body, and a clamping head is fixedly connected to the top end of the stop block.

[0009] A further improvement of the technical solution of the present utility model is that a tap clamping hole is provided at the bottom of the clamp body, a fixing screw is threadedly connected to the bottom end of the clamp body, and a gasket is movably installed inside the tap clamping hole.

[0010] A further improvement of the technical solution of the present utility model is that: a cutting fluid spray hole is opened at one end of the tap rod, and a tap head is fixedly connected to the bottom of the tap rod.

[0011] A further improvement of the technical solution of the present utility model is that: the outside of the tap head is provided with tap thread teeth, and the outside of the tap head is provided with a spiral chip removal groove.

[0012] A further improvement of the technical solution of the present utility model is that a cutting fluid groove is provided at the bottom of the tap head, and a cutting fluid outlet is provided at the bottom of the tap head.

[0013] A further improvement of the technical solution of the present utility model is that: a liquid inlet is provided on the top of the tap clamping end, a liquid inlet pipe is provided inside the tap rod, and a waste chip retaining ring is fixedly connected to the bottom end of the tap rod.

[0014] Due to the adoption of the above technical solution, the present invention has achieved the following technical advancements compared to the prior art:

[0015] 1. The utility model provides a variable-angle spiral groove tap. Through the combined action of the spiral chip groove and the chip retaining ring, when the chips generated during the tapping operation are discharged from the spiral chip groove to the end of the groove, that is, the connection between the tap thread and the tap shank, the chip retaining ring is structured so that the radius decreases as it approaches the tap thread. Therefore, the chip retaining ring can disperse the chips to the surrounding areas of the tap shank, keeping the chips away from the tap shank, thereby preventing the chips from entanglement with the tap shank.

[0016] 2. The utility model provides a variable-angle spiral groove tap. Through the joint action of a liquid inlet pipe, a cutting fluid outlet and a cutting fluid tank, when lubrication and cooling of the processing area are required, the cutting fluid is fed into the interior of the spiral groove tap assembly through the liquid inlet and the liquid inlet pipe. Since the cutting fluid outlet and the cutting fluid tank are arranged at the bottom of the spiral groove tap assembly, when the cutting fluid is discharged from the cutting fluid outlet, it will be sprayed out along the cutting fluid tank, bringing the chips out from the bottom of the processed hole, so that the spiral groove tap will not be broken due to chip jamming. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the variable angle spiral groove tap of the present invention;

[0018] Figure 2 This is a schematic structural diagram of the tap clamping assembly of the present utility model;

[0019] Figure 3 This is a schematic structural diagram of the spiral groove tap assembly of the present utility model;

[0020] Figure 4 This is a schematic diagram of the internal structure of the spiral groove tap assembly of the present utility model.

[0021] In the figure: 1. Tap holding assembly; 2. Spiral groove tap assembly; 10. Holder body; 11. Stopper; 12. Loading and unloading groove; 13. Fixing screw; 14. Chuck; 15. Gasket; 16. Tap clamping hole; 20. Tap shank; 21. Tap clamping end; 22. Cutting fluid spray hole; 23. Tap thread; 24. Spiral chip flute; 25. Tap head; 26. Cutting fluid groove; 27. Cutting fluid outlet; 201. Liquid inlet pipe; 202. Waste chip retaining ring; 203. Liquid inlet. DETAILED DESCRIPTION

[0022] The present invention is further described in detail below with reference to the embodiments:

[0023] like Figure 1-4 As shown, the utility model provides a variable-angle spiral groove tap, including a tap clamping assembly 1 and a spiral groove tap assembly 2, the tap clamping assembly 1 includes a clamping body 10 and a stopper 11, the stopper 11 is fixedly connected to the top of the clamping body 10, and loading and unloading grooves 12 are opened on both sides of the clamping body 10, and the loading and unloading grooves 12 are convenient for loading and unloading the tap clamping assembly 1, the top of the stopper 11 is fixedly connected with a chuck 14, and the chuck 14 is connected to the machine tool, and a tap clamping hole 16 is opened at the bottom of the clamping body 10, and a fixing screw 13 is threadedly connected to the bottom end of the clamping body 10, and a gasket 15 is movably installed inside the tap clamping hole 16, and the gasket 15 can adjust the position of the spiral groove tap assembly 2 so that the tap clamping assembly 1 and the spiral groove tap assembly 2 are concentric, and the spiral groove tap assembly 2 is fixedly installed inside the tap clamping assembly 1 through the tap clamping end 21 and the fixing screw 13.

[0024] The spiral groove tap assembly 2 includes a tap rod 20 and a tap clamping end 21. The tap rod 20 can connect the tap clamping end 21 and the tap head 25. The tap clamping end 21 is fixedly connected to the top of the tap rod 20 and is connected to the tap clamping assembly 1 through the tap clamping end 21. A cutting fluid spray hole 22 is provided at one end of the tap rod 20. The cutting fluid spray hole 22 can spray the cutting fluid inside the tap rod 20 to cool and lubricate the processing area. The bottom of the tap rod 20 is fixedly connected to the tap head 25. The outside of the tap head 25 is provided with tap thread teeth 23. When tapping a hole, the tap thread teeth 23 cut the hole. The outside of the tap head 25 is provided with a spiral chip removal groove 24. The chips generated during the cutting process are discharged through the spiral chip removal groove 24. The tap head A cutting fluid groove 26 is provided at the bottom of the tap head 25, and a cutting fluid outlet 27 is provided at the bottom of the tap head 25. When the cutting fluid reaches the bottom of the tap head 25, it is sprayed out through the cutting fluid outlet 27 and the cutting fluid groove 26 to cool and lubricate the processing area. Through the joint action of the liquid inlet pipe 201, the cutting fluid outlet 27 and the cutting fluid groove 26, when it is necessary to lubricate and cool the processing area, the cutting fluid is sent into the interior of the spiral groove tap assembly 2 through the liquid inlet 203 and the liquid inlet pipe 201. Since the cutting fluid outlet 27 and the cutting fluid groove 26 are provided at the bottom of the spiral groove tap assembly 2, when the cutting fluid is discharged from the cutting fluid outlet 27, it will be sprayed out along the cutting fluid groove 26, bringing the chips out from the bottom of the processing hole, so that the spiral groove tap will not be broken due to chip jamming.

[0025] A liquid inlet 203 is provided at the top of the tap clamping end 21, and cutting fluid is injected into the interior of the tap rod 20 through the liquid inlet 203. A liquid inlet pipe 201 is provided inside the tap rod 20, and a chip retaining ring 202 is fixedly connected to the bottom end of the tap rod 20. The chip retaining ring 202 can discharge the chips to the four sides of the tap rod 20. Through the combined action of the spiral chip groove 24 and the chip retaining ring 202, when the chips generated during the tapping operation are discharged from the spiral chip groove 24 to the end of the groove, that is, the connection between the tap thread tooth 23 and the tap rod 20, since the structure of the chip retaining ring 202 is that the radius becomes smaller the closer to the tap thread tooth 23, the chip retaining ring 202 can diffuse the chips to the four sides of the tap rod 20, keep the chips away from the tap rod 20, and prevent the chips from entangled with the tap rod 20.

[0026] The following is a detailed description of the working principle of the variable angle spiral groove tap.

[0027] like Figure 1-4As shown, the utility model provides a variable angle spiral groove tap. When processing a hole, the spiral groove tap assembly 2 is fixedly installed in the tap clamping assembly 1 through the tap clamping end 21 and the fixing screw 13. The position of the spiral groove tap assembly 2 is then adjusted by the gasket 15 so that the tap clamping assembly 1 and the spiral groove tap assembly 2 are concentric. When lubrication and cooling of the processing area are required, the cutting fluid is fed into the interior of the spiral groove tap assembly 2 through the liquid inlet 203 and the liquid inlet pipe 201 under the joint action of the cutting fluid outlet 27 and the cutting fluid groove 26. Since the cutting fluid outlet 27 and the cutting fluid groove 26 are provided at the bottom of the spiral groove tap assembly 2, when the cutting fluid is When discharged from the opening 27, the cutting fluid will be sprayed out along the cutting fluid groove 26, bringing the chips out from the bottom of the machined hole, so that the spiral groove tap will not be broken due to chip jamming. Under the combined action of the spiral chip groove 24 and the chip retaining ring 202, the chips generated during the cutting process can be discharged through the spiral chip groove 24. When the chips generated during the tapping operation are discharged from the spiral chip groove 24 to the end of the groove, that is, the connection between the tap thread tooth 23 and the tap rod 20, since the structure of the chip retaining ring 202 is that the radius becomes smaller as it gets closer to the tap thread tooth 23, the chip retaining ring 202 can diffuse the chips to the surroundings of the tap rod 20, keeping the chips away from the tap rod 20, so that the chips will not be entangled with the tap rod 20, thereby protecting the spiral groove tap assembly 2.

[0028] The above generally describes the present invention in detail. However, it is obvious to those skilled in the art that modifications or improvements may be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A variable-angle spiral groove tap, comprising a tap clamping assembly (1) and a spiral groove tap assembly (2), characterized in that: The tap clamping assembly (1) comprises a clamping body (10) and a stopper (11), wherein the stopper (11) is fixedly connected to the top of the clamping body (10); the spiral groove tap assembly (2) comprises a tap rod (20) and a tap clamping end (21), wherein the tap clamping end (21) is fixedly connected to the top of the tap rod (20); and the spiral groove tap assembly (2) is fixedly mounted inside the tap clamping assembly (1) via the tap clamping end (21).

2. The variable-angle spiral groove tap according to claim 1, characterized in that: Both sides of the clamp body (10) are provided with loading and unloading grooves (12), and the top end of the stop block (11) is fixedly connected to a clamping head (14).

3. The variable-angle spiral groove tap according to claim 1, characterized in that: A tap clamping hole (16) is provided at the bottom of the clamp body (10), a fixing screw (13) is threadedly connected to the bottom end of the clamp body (10), and a gasket (15) is movably installed inside the tap clamping hole (16).

4. The variable-angle spiral groove tap according to claim 1, characterized in that: A cutting fluid spray hole (22) is provided at one end of the tap rod (20), and a tap head (25) is fixedly connected to the bottom of the tap rod (20).

5. The variable-angle spiral groove tap according to claim 4, characterized in that: The outside of the tap head (25) is provided with tap thread teeth (23), and the outside of the tap head (25) is provided with a spiral chip removal groove (24).

6. The variable-angle spiral groove tap according to claim 4, characterized in that: A cutting fluid groove (26) is provided at the bottom of the tap head (25), and a cutting fluid outlet (27) is provided at the bottom of the tap head (25).

7. The variable-angle spiral groove tap according to claim 1, characterized in that: A liquid inlet (203) is provided at the top of the tap clamping end (21), a liquid inlet pipe (201) is provided inside the tap rod (20), and a waste chip retaining ring (202) is fixedly connected to the bottom end of the tap rod (20).

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