CN-224222887-U - Miniature thread tapping tool for narrow space use

Abstract

The utility model belongs to the field of screw tapping, in particular to a miniature screw tapping tool for narrow space, which comprises an A telescopic rod, wherein one end of the A telescopic rod is fixedly connected with an A clamping piece group, one end of the A clamping piece group is internally and rotatably connected with a sleeve, two sides of the sleeve are fixedly connected with connecting pieces, one end of each connecting piece is fixedly connected with a B clamping piece group, one end of each B clamping piece group is fixedly connected with a B telescopic rod, one end of each B telescopic rod is fixedly connected with a connecting cylinder, and the multi-angle universal adjusting function of the tool is realized through the design of the rotating connection structure of the sleeve, the A clamping piece group and the B clamping piece group. When outside electric drill drive B hexagonal post, the sleeve freely rotates in A clamping piece group, makes the connection piece drive B clamping piece group and tap head nimble adjustment tapping angle in narrow space, has solved traditional rigid tool and has improved narrow region tapping efficiency because of the unable problem of going deep into operation of space restriction.

Inventors

• ZHANG BO

Assignees

• 杭州巨工工具有限公司

Dates

Publication Date

20260512

Application Date

20250520

Claims (6)

1. 1. The miniature thread tapping tool for narrow space is characterized by comprising an A telescopic rod (1), wherein one end of the A telescopic rod (1) is fixedly connected with an A clamping piece group (2), one end of the A clamping piece group (2) is internally and rotatably connected with a sleeve (3), two sides of the sleeve (3) are fixedly connected with connecting pieces (4), one end of each connecting piece (4) is fixedly connected with a B clamping piece group (5), one end of each B clamping piece group (5) is fixedly connected with a B telescopic rod (6), and one end of each B telescopic rod (6) is fixedly connected with a connecting cylinder (7); The inside grafting of connecting cylinder (7) has A hexagonal post (8), fixed orifices (9) have been seted up to the both sides on A hexagonal post (8) top, the inside of fixed orifices (9) is provided with spring (10), the one end of spring (10) is provided with spacing pearl (11), interior hexagonal groove (12) with A hexagonal post (8) adaptation have been seted up to the inside of connecting cylinder (7), the bottom of A hexagonal post (8) is provided with tap head (14), the other end of A telescopic link (1) is provided with B hexagonal post (15).
2. 2. The miniature thread tapping tool for narrow spaces according to claim 1, wherein the sleeve (3) is rotatably connected with the A clamping piece group (2) through a bearing, and two ends of the connecting piece (4) are fixedly connected with the outer wall of the sleeve (3) and the B clamping piece group (5) respectively.
3. 3. The micro thread tapping tool for narrow space according to claim 1, wherein the inner side wall of the inner hexagonal groove (12) is provided with longitudinal arc edge grooves (13) in an axisymmetric manner, and the arc edge outline of the longitudinal arc edge grooves (13) is in contact fit with the spherical surface of the limit beads (11).
4. 4. The micro thread tapping tool for narrow space according to claim 3, wherein the groove bottom of the longitudinal arc groove (13) is a continuous smooth curved surface, and the limit beads (11) and the longitudinal arc groove (13) form an elastic clamping structure under the action of the spring (10).
5. 5. A micro-threading tool for narrow space use according to claim 1, wherein the B-telescoping rod (6) is fixedly connected with the connecting cylinder (7) through threads, and the outer hexagonal profile of the B-hexagonal column (15) is matched with the chuck of an external electric drill equipment.
6. 6. The miniature thread tapping tool for narrow spaces according to claim 1, wherein the A telescopic rod (1) and the B telescopic rod (6) are of a multi-section nested insertion structure, and the telescopic lengths of adjacent sections are fixed through locking bolts.

Description

Miniature thread tapping tool for narrow space use Technical Field The utility model relates to the field of thread tapping, in particular to a miniature thread tapping tool for narrow space. Background A thread tapping tool is a metal cutting tool for machining internal threads, and is mainly used for cutting threads in holes so as to be matched with other threaded parts (such as bolts or screws). Common threaded tapping tools include taps and a tap lever (or tap wrench). In the prior art, as disclosed in CN220330162U, an internal thread tapping device is disclosed, which comprises a tapping base, a tapping main body, a control rotating handle, a control pressing block, a tapping sliding block, a tapping rotating shaft, a tapping fastening mechanism and a fastening and fixing mechanism, wherein the tapping main body is fixedly connected with the upper end surface of the tapping base, the control rotating handle is rotationally connected with the right end surface of the tapping main body, the control pressing block is fixedly connected with the control rotating handle, the tapping sliding block is slidingly connected inside the tapping main body, the tapping rotating shaft is rotationally connected inside the tapping sliding block, the tapping fastening mechanism is arranged inside the tapping base, and the fastening and fixing mechanism is arranged inside the tapping main body; the above patent is through adopting tapping fastening mechanism, has realized having avoided the staff to carry out fixed step to the material, through adopting fastening mechanism, realize guaranteeing the stability of material at the tapping, but some positions that need the screw thread tapping are in the narrow space of material, lead to the tapping device unable deep into the space, lead to the screw thread tapping inconvenient, the aperture of screw thread tapping and the demand of screw thread texture are different simultaneously, need change the screw tap tool bit as required, and change tool bit process complicacy, influence the operating efficiency, consequently, put forward the miniature screw thread tapping instrument to narrow space use to above-mentioned problem. Disclosure of utility model In order to make up the defects of the prior art, some positions needing thread tapping are in a narrow space of materials, so that a tapping device cannot go deep into the space, the thread tapping is inconvenient, meanwhile, the requirements of the aperture and the thread texture of the thread tapping are different, a thread tap bit needs to be replaced according to the requirements, the procedure of replacing the bit is complex, and the operation efficiency is affected. The technical scheme includes that the miniature thread tapping tool for the narrow space comprises an A telescopic rod, one end of the A telescopic rod is fixedly connected with an A clamping piece group, one end of the A clamping piece group is rotatably connected with a sleeve, two sides of the sleeve are fixedly connected with connecting pieces, one end of each connecting piece is fixedly connected with a B clamping piece group, one end of each B clamping piece group is fixedly connected with a B telescopic rod, one end of each B telescopic rod is fixedly connected with a connecting cylinder, an A hexagonal column is inserted into the connecting cylinder, two sides of the top end of each A hexagonal column are provided with fixing holes, springs are arranged in the fixing holes, one end of each spring is provided with limiting beads, inner hexagonal grooves matched with the A hexagonal column are formed in the connecting cylinders, screw tap heads are arranged at the bottoms of the A hexagonal columns, and B hexagonal columns are arranged at the other ends of the A telescopic rods. Preferably, the sleeve is rotationally connected with the clamping piece A through a bearing, and two ends of the connecting piece are fixedly connected with the outer wall of the sleeve and the clamping piece B respectively. Preferably, the inner side wall of the inner hexagonal groove is axially symmetrically provided with a longitudinal arc edge groove, and the arc edge outline of the longitudinal arc edge groove is in contact fit with the spherical surface of the limit bead. Preferably, the bottom of the longitudinal arc edge groove is a continuous smooth curved surface, and the limiting beads and the longitudinal arc edge groove form an elastic clamping structure under the action of a spring. Preferably, the telescopic rod B is fixedly connected with the connecting cylinder through threads, and the outer hexagonal outline of the hexagonal column B is matched with the chuck of external electric drilling equipment. Preferably, the telescopic rod A and the telescopic rod B are of a multi-section nested splicing structure, and the telescopic lengths of adjacent sections are fixed through locking bolts. The utility model has the advantages that: 1. According to the utility model,