CN215880213U - Tapping chuck for machining internal threads of motorcycle hoister - Google Patents

Abstract

The utility model discloses a screw tap chuck for processing internal threads of a motorcycle hoister, which structurally comprises a screw tap base, wherein the screw tap base comprises a fixed seat, a movable block and a buffer spring, a fixed groove is formed in the bottom of the fixed seat, the movable block can be movably arranged in the fixed groove up and down, a movable limiting part is arranged at the joint of the movable block and the fixed groove, so that the movable block is limited between the highest movable line and the lowest movable line at the up-and-down movable position of the fixed groove, a fixed shaft for installing a screw tap head is arranged at the bottom of the movable block, when the movable block drives the fixed shaft to move up and down, the fixed shaft is always positioned in the fixed groove, the screw tap head always extends outside the fixed groove, an annular step surface is arranged at the joint of the fixed shaft and the movable block, the buffer spring is sleeved on the fixed shaft and abutted against the annular step surface, and the initial length of the buffer spring is greater than the length of the fixed shaft, the utility model prolongs the service life of the tap head.

Description

Tapping chuck for machining internal threads of motorcycle hoister

The technical field is as follows:

the utility model relates to the technical field of internal thread processing, in particular to a tapping chuck for processing internal threads of a motorcycle hoister.

Background art:

in the production process of motorcycle lifting, internal threads are required to be machined at multiple positions of each part, the machining frequency of the internal threads is frequent, at present, the machining of the internal threads mainly depends on a tapping machine, in the machining process of the internal threads by a screw tap head, the fact that the screw tap head stops rotating instantly in the moment of machining and forming the internal threads is found, then the screw tap head is lifted upwards, the screw tap head can generate elastic deformation due to the upwards-lifted pulling force, particularly, the frequent internal thread machining has great damage to the screw tap head, the screw tap head needs to be frequently replaced in the production process of the motorcycle lifting machine, and cost burden is brought to enterprises.

The utility model has the following contents:

the utility model aims to provide a tapping chuck for processing internal threads of a motorcycle hoister, which solves one or more of the problems in the prior art.

In order to solve the technical problem, the utility model provides a screw tap chuck for processing internal threads of a motorcycle hoister, which structurally comprises a screw tap base and is characterized in that: the screw tap base comprises a fixed seat, a movable block and a buffer spring, wherein the bottom of the fixed seat is provided with a fixed groove, the movable block can be arranged in the fixed groove in an up-and-down movable manner, a movable limiting part is arranged at the joint of the movable block and the fixed groove, so that the up-and-down movable position of the movable block in the fixed groove is limited between the highest movable line and the lowest movable line, the bottom of the movable block is provided with a fixed shaft for mounting a screw tap head, when the movable block drives the fixed shaft to move up and down, the fixed shaft is always positioned in the fixed groove, the screw tap head always extends out of the fixed groove, the joint of the fixed shaft and the movable block is provided with an annular step surface, the buffer spring is sleeved on the fixed shaft and abutted against the annular step surface, the initial length of the buffer spring is larger than that of the fixed shaft, a fixed block is arranged at the port of the fixed groove and abutted against the buffer spring, so that the buffer spring is extruded and contracted on the fixed shaft, the movable block is elastically abutted against the highest movable line.

Further, above-mentioned activity locating part is including transversely setting up waist shape hole on the fixed slot lateral wall and the fixed orifices of transversely setting on the movable block, and the length in waist shape hole corresponds the distance between highest activity line and the minimum activity line, and the movable block activity embedding is when the inside of fixed slot, and the fixed orifices aligns waist shape hole, and the inside of waist shape hole and fixed orifices runs through there is the fixed pin, and fixed pin interference embedding is in the inside of fixed orifices.

Furthermore, a guide pipe is arranged at the top of the inside of the fixing groove, a guide rod is arranged at the center of the top of the movable block, and the guide rod is arranged inside the guide pipe in a telescopic mode.

Further, the inside of above-mentioned fixed slot, the lateral wall of movable block are the smooth surface of polishing.

Furthermore, the central position of above-mentioned fixed block puts and has seted up the outwards extended through-hole of screw tap head, and the size of through-hole corresponds the size of fixed axle and is located the fixed axle under, and the inboard of fixed block is equipped with the ring channel, when the fixed block contradicts buffer spring, buffer spring imbeds in the inside of ring channel.

The utility model has the beneficial effects that:

1. the utility model provides a screw tap chuck for processing internal threads of a motorcycle hoister.

2. The utility model provides a screw tap chuck for processing internal threads of a motorcycle hoister.

3. The utility model provides a tapping chuck for processing internal threads of a motorcycle hoister, wherein the annular groove is set to ensure that the position of a buffer spring can be stabilized between the annular groove and an annular step surface, so as to ensure that the elastic acting force of the buffer spring can act on the direction of a movable block all the time,

description of the drawings:

FIG. 1 is a side cross-sectional view of the present invention.

FIG. 2 is a top cross-sectional view of the mounting bracket of the present invention.

Fig. 3 is a cross-sectional view of the surface of the fixing block of the present invention.

The specific implementation mode is as follows:

for the purpose of enhancing the understanding of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.

As shown in fig. 1 to 2, a specific embodiment of the utility model is a tap base, the tap base comprises a fixed base 1, a movable block 2 and a buffer spring 3, a fixed slot 11 is formed at the bottom of the fixed base 1, the movable block 2 is movably arranged in the fixed slot 11 up and down, a movable limiting part 4 is arranged at the joint of the movable block 2 and the fixed slot 11, so that the up-and-down moving position of the movable block 2 in the fixed slot 11 is limited between a highest moving line 101 and a lowest moving line 102, a fixed shaft 5 for installing a tap head 103 is arranged at the bottom of the movable block 2, when the movable block 2 drives the fixed shaft 5 to move up and down, the fixed shaft 5 is always positioned in the fixed slot 11 and the tap head 103 always extends outside the fixed slot 11, an annular step surface 51 is arranged at the joint of the fixed shaft 5 and the movable block 2, the buffer spring 3 is sleeved on the fixed shaft 5 and abuts against the annular step surface 51, the initial length of buffer spring 3 is greater than the length of fixed axle 5, and the port of fixed slot 11 is equipped with fixed block 6, and fixed block 6 contradicts on buffer spring 3 for buffer spring 3 extrudees the shrink on fixed axle 5, realizes that movable block 2 elasticity is contradicted on highest activity line 101.

In the utility model, after the internal thread is machined by the rotating tap head 103, the tap head 103 needs to be lifted and separated from the inside of the internal thread, at the moment when the tap head 103 is lifted, downward pressure is generated in the fixed groove 11 by the movable block 2 and the fixed shaft 5, the pressure acts on the buffer spring 3 through the annular step surface 51, so that the buffer spring 3 is compressed between the annular step surface 51 and the fixed block 6, the elastic compression action of the buffer spring 3 plays a role of offsetting the pressure lifting action on the tap head 103, thereby avoiding the damage of the pressure lifting action on the tap head 103 at the moment on the tap head 103, prolonging the service life of the tap head 103, after the pressure lifting action of the subsequent tap head 103 disappears, under the self elastic recovery action of the buffer spring 3, the movable block 2 can automatically recover to the highest movable line 101, and during the continuous machining process of the internal thread by the subsequent tap head 103, the pressure of lifting up can be offset by the elastic activity of movable block 2 between the highest activity line 101 and the lowest activity line 102 all the time, can play continuous guard action to the tap head 103, simultaneously, in the tapping process of tap head 103, because the tap head 103 is in the state of upwards pushing up to the effort of movable block 2, and movable block 2 sets up to contradict all the time on the highest activity line 101, this kind of setting guarantees that tapping in-process tap head 103 can remain stable, ensures the smooth tapping of internal thread.

In the present invention, as a preferable scheme, the specific structure of the movable limiting part 4 is as follows: the movable limiting part 4 comprises a waist-shaped hole 41 transversely formed in the side wall of the fixing groove 11 and a fixing hole 42 transversely formed in the movable block 2, the length of the waist-shaped hole 41 corresponds to the distance between the highest movable line 101 and the lowest movable line 102, when the movable block 2 is movably embedded in the fixing groove 11, the fixing hole 42 is aligned with the waist-shaped hole 41, the fixing pin 7 penetrates through the inside of the waist-shaped hole 41 and the inside of the fixing hole 42, and the fixing pin 7 is embedded in the fixing hole 42 in an interference mode.

In the utility model, in the process of up-and-down movement of the movable block 2, the fixing pin 7 is driven to move up and down, and the up-and-down movement position of the fixing pin 7 is limited through the up-and-down position of the long axis of the waist-shaped hole 41, so that the up-and-down movement position of the movable block 2 is limited, the top end of the long axis of the waist-shaped hole 41 corresponds to the highest movement line 101, and the bottom of the long axis of the waist-shaped hole 41 corresponds to the lowest movement line 102.

In the present invention, it is preferable that a guide tube 111 is provided at the top of the inside of the fixed groove 11, a guide rod 21 is provided at the center of the top of the movable block 2, the guide rod 21 is telescopically provided inside the guide tube 111, and the guide rod 21 is synchronously telescopically reciprocated inside the guide tube 111 during the vertical movement of the movable block 2, thereby ensuring that the vertical movement of the movable block 2 can be stably maintained.

In the present invention, as a preferable scheme, inside the fixing groove 11, the outer side wall of the movable block 2 is a polished smooth surface, and when the movable block 2 moves up and down inside the fixing groove 11, the smooth surface is arranged to reduce the resistance of the movable block 2 moving up and down inside the fixing groove 11, so as to prevent the movable block 2 from being stuck inside the card fixing groove 11.

In the present invention, as a preferable scheme, a through hole 61 in which a screw head 103 extends outward is formed in a central position of the fixed block 6, the size of the through hole 61 corresponds to the size of the fixed shaft 5 and is located right below the fixed shaft 5, an annular groove 62 is formed in an inner side of the fixed block 6, when the fixed block 6 abuts against the buffer spring 3, the buffer spring 3 is embedded in the annular groove 62, the fixed shaft 5 is driven by the movable block 2 to move up and down in the fixed groove 11, a moving direction front face of the fixed shaft 5 faces the through hole 61 or is away from the through hole 61, so that interference of the fixed block 6 on the up and down movement of the fixed shaft 5 is avoided, and the annular groove 62 is set to ensure that the position of the buffer spring 3 can be stabilized between the annular groove 62 and the annular step surface 51, so that the elastic acting force of the buffer spring 3 can always act on the direction of the movable block 2.

It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (5)

1. The utility model provides a screw tap chuck of motorcycle lifting machine internal thread processing usefulness, its structure includes the screw tap base, its characterized in that: the screw tap base comprises a fixed seat (1), a movable block (2) and a buffer spring (3), a fixed groove (11) is formed in the bottom of the fixed seat (1), the movable block (2) can be arranged in the fixed groove (11) in a vertically movable mode, a movable limiting part (4) is arranged at the joint of the movable block (2) and the fixed groove (11), so that the vertical moving position of the movable block (2) in the fixed groove (11) is limited between a highest moving line (101) and a lowest moving line (102), a fixed shaft (5) for mounting a screw tap head (103) is arranged at the bottom of the movable block (2), when the movable block (2) drives the fixed shaft (5) to move vertically, the fixed shaft (5) is always positioned in the fixed groove (11) and the screw tap head (103) always extends to the outer side of the fixed groove (11), fixed axle (5) with the junction of movable block (2) is equipped with annular step face (51), buffer spring (3) cover is established on fixed axle (5) and contradict annular step face (51) are gone up, buffer spring (3) initial length is greater than the length of fixed axle (5), the port of fixed slot (11) is equipped with fixed block (6), fixed block (6) are contradicted buffer spring (3) are gone up, make buffer spring (3) extrusion shrink is in on fixed axle (5), realize movable block (2) elastic conflict is in on highest activity line (101).

2. The tapping chuck for machining the internal thread of the motorcycle hoister as claimed in claim 1, wherein: activity locating part (4) are including transversely setting up waist shape hole (41) on fixed slot (11) lateral wall are in with transversely setting up fixed orifices (42) on movable block (2), the length in waist shape hole (41) corresponds highest activity line (101) with distance between minimum activity line (102), movable block (2) activity embedding is in during the inside of fixed slot (11), fixed orifices (42) are aimed at waist shape hole (41), waist shape hole (41) with fixed orifices (42)'s inside is run through there is fixed pin (7), fixed pin (7) interference embedding is in the inside of fixed orifices (42).

3. The tapping chuck for machining the internal thread of the motorcycle hoister as claimed in claim 1, wherein: the top in fixed slot (11) inside is equipped with stand pipe (111), the central point at activity piece (2) top puts and is equipped with guide bar (21), guide bar (21) telescopic setting is in the inside of stand pipe (111).

4. The tapping chuck for machining the internal thread of the motorcycle hoister as claimed in claim 1, wherein: the inside of fixed slot (11), the lateral wall of movable block (2) is the smooth surface of polishing.

5. The tapping chuck for machining the internal thread of the motorcycle hoister as claimed in claim 1, wherein: the central point of fixed block (6) puts and has seted up tap (103) outside through-hole (61) that extend, the size of through-hole (61) corresponds the size of fixed axle (5) just is located under fixed axle (5), the inboard of fixed block (6) is equipped with ring channel (62), fixed block (6) are contradicted during buffer spring (3), buffer spring (3) embedding is in the inside of ring channel (62).

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