Split type screw tap with cutter head convenient to replace

Abstract

The utility model relates to a split type screw tap convenient to replace a tool bit, which comprises a tap head and a tap handle, a first flange section is arranged at the lower end of the tap handle, the tap head comprises a cutting edge part and a root part which are integrally arranged, a second flange section is arranged at the upper end of the root part, the first flange section is connected with the second flange section through a plurality of locking bolts, and the locking bolts are connected with the first flange section. The free end of each locking bolt is connected with a locking nut in a screwed mode, the upper end face of each locking nut abuts against the lower surface of the second flange section, the conical head and the conical handle are detachably connected, when the conical head is seriously abraded, the conical head can be independently replaced, the original conical handle is reserved for continuous use, the replacement cost when a client uses the screw tap is reduced, and the service life of the screw tap is prolonged. The device is suitable for industrial production and has very high practicability.

Description

Technical Field

[0001] The utility model belongs to the technical field of taps, and in particular relates to a split tap which is convenient for replacing a cutter head. Background Art

[0002] In the existing Chinese patent database, a patent entitled "A machine-used progressive tap" is disclosed, with application number CN202320660484.7 and application date 2023-03-29. The device includes a tap body, the outer wall of the tap body is provided with a chip removal groove, one side of the chip removal groove is provided with a plurality of cutting thread segments, the end of the tap body is provided with a tap cutting head, a fixing rod is provided on the right side of the tap body, a connecting head is fixed to the end of the fixing rod, a fixing slot is provided on the outer wall of the connecting head, a connecting piece is provided on one side of the fixing rod, a conveying pipe is provided on the outer wall of the connecting piece, and a conveying cavity is provided inside the connecting piece. The utility model uses the chip removal groove provided on the outer wall of the tap body to discharge the debris generated when tapping the workpiece to the outside, thereby reducing the increase in cutting resistance during tapping, and the cutting thread segments and the tap cutting head provided on the tap body facilitate progressive tapping of the workpiece.

[0003] Existing taps are all of an integral structure. When the tap is working, the parts are mainly cut at the taper. Most of the damage to the tap is at the taper. Therefore, when the tap is damaged, only the taper needs to be replaced without replacing the entire tap. Therefore, this scheme aims to propose a split tap that is easy to replace the tool head, thereby reducing the replacement cost of the tap during use. Utility Model Content

[0004] The technical problem to be solved by the utility model is that the existing taps are all of an integral structure, and when the taps are working, the parts are mainly cut at the taper. Most of the damage to the tapers is at the taper. Therefore, when the tap is damaged, only the taper needs to be replaced without replacing the entire taper. In order to improve the shortcomings, the utility model provides a split tap that is easy to replace the tool head.

[0005] In order to achieve the above object, the utility model is realized by the following technical solutions:

[0006] A split tap for easy replacement of tool heads comprises a taper head and a taper shank, wherein a first flange section is arranged at the lower end of the taper shank, the taper head comprises an integral blade portion and a root portion, a second flange section is arranged at the upper end of the root portion, the first flange section and the second flange section are connected via a plurality of locking bolts, a locking nut is screwed onto the free end of each locking bolt, and an upper end surface of the locking nut abuts against a lower surface of the second flange section.

[0007] As a preferred embodiment, a threaded hole is provided at the lower end of the taper handle, and a connecting piece for extending the length of the tap is screwed into the threaded hole. The connecting piece includes a threaded section and a clamping section. The threaded section is cooperatively connected to the threaded hole, and a clamping groove is provided at the root of the cone head opposite to the clamping section. The clamping section is vertically slidably connected in the clamping groove.

[0008] As a preferred solution, a plurality of long strip-shaped clamping protrusions are arranged on the outer surface of the clamping section of the connecting piece, and a plurality of long strip-shaped grooves are correspondingly arranged on the inner wall of the clamping slot.

[0009] As a preferred solution, at least three groups of locking bolts and locking nuts are provided.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1. The cone head and cone shank are detachable. When the cone head is severely worn, the cone head can be replaced separately and the original cone shank can be retained for continued use, which reduces the replacement cost of the customer when using the tap;

[0012] 2. The setting of the connecting piece solves the problem that the tap cannot be processed due to the limited length of the tap, thereby improving the adaptability of the tap. The device is suitable for industrial production and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model.

[0014] In the figure: 1 cone head, 101 blade portion, 102 root portion, 103 second flange section, 104 slot, 105 groove, 2 cone handle, 201 first flange section, 202 threaded hole, 3 locking bolt, 4 locking nut,

[0015] 5 connecting piece, 501 threaded section, 502 clamping section, 503 clamping protrusion. DETAILED DESCRIPTION

[0016] The technical solution of the present application is further described below in conjunction with the accompanying drawings and embodiments.

[0017] like Figure 1As shown, a split tap for convenient replacement of the tool head comprises a taper head 1 and a taper shank 2. A first flange section 201 is arranged at the lower end of the taper shank 2. The taper head 1 comprises an integral blade portion 101 and a root portion 102. A second flange section 103 is arranged at the upper end of the root portion 102. The first flange section 201 and the second flange section 103 are connected via a plurality of locking bolts 3. A locking nut 4 is screwed to the free end of each locking bolt 3. The upper end surface of the locking nut 4 abuts against the lower surface of the second flange section 103. A threaded hole 202 is provided at the lower end of the taper shank 2. A connecting member 5 for extending the length of the tap is screwed into the threaded hole 202. The connecting member 5 comprises a threaded section 501 and a clamping section 502. The threaded section 501 is cooperatively connected to the threaded hole 202. A clamping groove 104 is provided at the root portion 102 of the taper head 1 opposite to the clamping section 502. The clamping section 502 is vertically slidably connected in the clamping groove 104. A plurality of long strip-shaped clamping protrusions 503 are arranged on the outer surface of the clamping section 502 of the connecting member 5, and a plurality of long strip-shaped grooves 105 are correspondingly arranged on the inner wall of the clamping slot 104. At least three sets of locking bolts 3 and locking nuts 4 are arranged.

[0018] During operation, the operator connects the first flange section 201 and the second flange section 103 to each other through the cooperation of the locking bolt 3 and the locking nut 4 to complete the installation of the cone head 1 and the cone shank 2. When the cone head 1 is severely worn, the cone head 1 can be replaced alone, and the original cone shank 2 can be retained for continued use, thereby reducing the replacement cost of the customer when using the tap. At the same time, the threaded section 501 of the connecting piece 5 is screwed to the cone shank 2, and the clamping section 502 is connected to the cone head 1. By adjusting the depth of the threaded section 501 of the connecting piece 5 screwed into the cone shank 2, the overall length of the tap formed by the cone shank 2 and the cone head 1 is extended, thereby solving the problem that the tap cannot be processed due to limited length, thereby improving the adaptability of the tap.

[0019] The present utility model is not limited to the above-mentioned embodiments. On the basis of the technical solution disclosed in the present utility model, technicians in this field can make some substitutions and deformations to some technical features therein according to the disclosed technical content without creative labor, and these substitutions and deformations are all within the protection scope of the present utility model.

Claims

1. A split tap that is easy to replace the cutter head. Features: The invention comprises a cone head (1) and a cone handle (2), wherein the lower end of the cone handle (2) is provided with a first flange section (201), the cone head (1) comprises an integral blade portion (101) and a root portion (102), the upper end of the root portion (102) is provided with a second flange section (103), the first flange section (201) and the second flange section (103) are connected via a plurality of locking bolts (3), the free end of each locking bolt (3) is screwed with a locking nut (4), and the upper end surface of the locking nut (4) contacts the lower surface of the second flange section (103).

2. A split tap for easy replacement of the cutter head according to claim 1, Features: A threaded hole (202) is provided at the lower end of the taper handle (2), a connecting piece (5) for extending the length of the tap is screwed into the threaded hole (202), the connecting piece (5) comprises a threaded section (501) and a clamping section (502), the threaded section (501) is matched and connected to the threaded hole (202), a clamping groove (104) is provided at the root (102) of the taper head (1) opposite to the clamping section (502), and the clamping section (502) is vertically slidably connected in the clamping groove (104).

3. A split tap for easy replacement of the cutter head according to claim 2, Features: A plurality of long strip-shaped clamping protrusions (503) are arranged on the outer surface of the clamping section (502) of the connecting piece (5), and a plurality of long strip-shaped grooves (105) are correspondingly arranged on the inner wall of the clamping slot (104).

4. A split tap for easy replacement of the cutter head according to any one of claims 1 to 3, Features: At least three sets of locking bolts (3) and locking nuts (4) are provided.

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