CN215880207U - Manual tapping tool for screw hole machining of part of oil jack - Google Patents

Abstract

The utility model discloses a manual tapping tool for processing a screw hole of an oil jack part, which structurally comprises an operating rod, a screw tap head and a fixing hoop, wherein a through hole is drilled in the end part of the operating rod, the through hole is sequentially divided into a limiting hole and a clamping hole from inside to outside, the screw tap head is detachably inserted into the through hole, the top of the screw tap head is provided with a limiting pin embedded into the limiting hole, the limiting pin is matched with the limiting hole to enable the screw tap head to be embedded into the through hole in a limiting and rotating mode, the outer side of the clamping hole is provided with a fixing thread, the fixing hoop comprises a sleeve opening movably sleeved on the screw tap head and a thread opening connected with the fixing thread, and the thread opening presses the clamping hole to enable the clamping hole to clamp the screw tap head axially.

Description

Manual tapping tool for screw hole machining of part of oil jack

The technical field is as follows:

the utility model relates to the technical field of production of oil jacks, in particular to a manual tapping tool for machining screw holes of parts of an oil jack.

Background art:

the tapping is a metal cutting process for screwing a screw tap into a bottom hole of a fastener blank to be drilled by using a certain torque to process an internal thread, in the manufacturing of an oil pressure transmission jack, some screw holes are not suitable for milling the screw thread due to the limitation of the position or the shape of a part, the processing mode of the screw holes is mostly carried out by adopting a manual tapping tool, in the prior art, the manual tapping tool is mostly in a structural mode of integrating an operating rod and a screw tap head, the structural mode well ensures that the rotation of the screw tap head and the operating rod can be kept consistent, however, once the screw tap head is damaged, the screw tap head is integrally scrapped, the cost is wasted, in addition, the prior art also has a detachable design of the operating rod and the screw tap head, however, in the tapping process, the pressure of the screw tap head on the screw hole is higher, the phenomenon that the screw tap head rotates along with the screw hole is easy to occur, and the smooth tapping is difficult to ensure, in order to ensure the connection tightness of the tap head and the operating rod, a complex connecting structure is required, which is not beneficial to the quick replacement of the subsequent tap head.

The utility model has the following contents:

the utility model aims to provide a manual tapping tool for machining a screw hole of a part of an oil jack, which solves one or more of the problems in the prior art.

In order to solve the technical problem, the utility model provides a manual tapping tool for processing a screw hole of a part of an oil jack, which structurally comprises an operating rod and a tap head, and has the innovation points that: the structure of the screw tap head further comprises a fixed hoop, a through hole is drilled in the end part of the operating rod, the through hole is sequentially divided into a limiting hole and a clamping hole from inside to outside, and the screw tap head is detachably inserted into the through hole;

the top of the screw tap head is provided with a limiting pin embedded in the limiting hole, the limiting pin is matched with the limiting hole to enable the screw tap head to be embedded in the through hole in a limiting and rotating mode, the outer side of the clamping hole is provided with a fixed thread, the fixed hoop comprises a sleeve opening which is movably sleeved on the screw tap head and a thread opening which is connected with the fixed thread, and the thread opening presses the clamping hole to enable the clamping hole to axially clamp the screw tap head.

Furthermore, above-mentioned spacing hole, spacer pin are squarely, and the central point of spacing downthehole portion puts and is equipped with the hexagonal arch, and the plane at spacer pin top is equipped with the hexagonal recess, and when the spacer pin embedding was in the inside in spacing hole, the inside at the hexagonal recess was blocked to the hexagonal arch card.

Furthermore, a cross groove is axially formed in the clamping hole, a plurality of sawtooth protrusions are distributed on the inner wall of the clamping hole, the outer side wall of the top of the tap head is a frosted surface, and when the clamping hole clamps the top of the tap head, the sawtooth protrusions abut against the frosted surface.

Furthermore, the diameter of the threaded opening is gradually reduced from outside to inside, and a hexagonal clamping surface is arranged on the outer side of the threaded opening.

Furthermore, a through hole is axially formed in the top of the screw tap head, and when the top of the screw tap head is embedded into the through hole, the through hole is correspondingly positioned in the cross groove.

The utility model has the beneficial effects that:

1. the utility model provides a manual tapping tool for processing a screw hole of an oil jack part, wherein when the screw hole of the oil jack part is tapped, an operating rod is manually held, a screw tap head is aligned with the screw hole to carry out rotary tapping, the screw tap head is easy to damage in the tapping process, at the moment, the operating rod and the screw tap head do not need to be replaced together, only a threaded opening needs to be loosened from a fixed thread, the screw tap head is pulled out from the inside of a through hole, and a new screw tap head is replaced again, so that the whole process is convenient and rapid.

2. The utility model provides a manual tapping tool for processing a screw hole of an oil jack part, which is characterized in that a screw tap head is clamped in the screw hole when the screw tap head taps the screw hole, and the setting of a limiting hole and a limiting pin ensures that the operating rod can drive the screw tap head to rotate together when the operating rod is manually rotated, so that the phenomenon that the screw tap head is clamped on the screw hole to rotate and slide is avoided, the screw hole of the oil jack part can be tapped smoothly, and the screw tap head is clamped by a clamping hole to ensure the stability of the fixing of the screw tap head in the through hole.

3. The utility model provides a manual tapping tool for machining screw holes of oil jack parts, which is characterized in that a hexagonal bulge is embedded in a hexagonal groove, so that a limiting hole limits the central position of the top of a screw tap head from the central position, the screw tap head can be further driven by an operating rod to rotate, the edge surface of the limiting hole is effectively protected, and the limiting effect of a limiting pin on a limiting hole 11 and other screw tap heads after the screw tap head is replaced in the follow-up process is guaranteed.

Description of the drawings:

FIG. 1 is a schematic side view of the present invention.

FIG. 2 is a bottom cross-sectional view of a via of the present invention.

Fig. 3 is a top cross-sectional view of the tap head 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.

Fig. 1 to 2 show a specific embodiment of the present invention, which structurally includes an operating rod 101 and a screw head 102, and further includes a fixing collar 3, a through hole 1 is drilled in an end of the operating rod 101, the through hole 1 is sequentially divided into a limiting hole 11 and a clamping hole 12 from inside to outside, and the screw head 102 is detachably inserted into the through hole 1;

the top of the screw tap head 102 is provided with a limiting pin 2 embedded in the limiting hole 11, the limiting pin 2 is matched with the limiting hole 11 to enable the screw tap head 102 to be embedded in the through hole 1 in a limiting and rotating mode, the outer side of the clamping hole 12 is provided with a fixing thread 121, the fixing hoop 3 comprises a sleeve opening 31 movably sleeved on the screw tap head 102 and a thread opening 32 connected with the fixing thread 121, and the thread opening 32 presses the clamping hole 12 to enable the clamping hole 12 to clamp the screw tap head 102 axially.

In the present invention, the operation principle of connecting the operation lever 101 and the tap head 102 is as follows: the top of the screw tap head 102 is embedded into the clamping hole 12 and the limiting hole 11 in sequence, wherein the limiting pin 2 is matched with the limiting hole 11 to limit the screw tap head 102 to rotate in the through hole 1, secondly, the sleeve opening 31 of the fixed hoop 3 is movably sleeved on the screw tap head 102, the thread opening 32 is made to move to the position of the clamping hole 12, the thread opening 32 and the fixed thread 121 are utilized to enable the thread opening 32 to be in threaded connection with the clamping hole 12, and therefore the clamping hole 12 axially clamps the top of the screw tap head 102, and the screw tap head 102 is fixed in the through hole 1.

In the utility model, when the screw hole of the hydraulic jack part is tapped, the operating rod 101 is manually held, the tap head 102 is aligned with the screw hole for rotary tapping, the tap head 102 is easily damaged in the tapping process, at the moment, the operating rod 101 and the tap head 102 do not need to be replaced together, only the threaded hole 32 needs to be loosened from the fixed thread 121, the tap head 102 is pulled out from the inside of the through hole 1, and a new tap head 102 is replaced again, so that the whole process is convenient and rapid.

In the utility model, because the screw tap head 102 is clamped inside the screw hole when the screw tap head 102 taps the screw hole, and the setting of the limiting hole 11 and the limiting pin 2 ensures that the operating rod 101 can drive the screw tap head 102 to rotate together when the operating rod 101 is manually rotated, the phenomenon that the screw tap head 102 is clamped on the screw hole to rotate and slide is avoided, the smooth tapping of the screw hole of the hydraulic jack part is ensured, and the stability that the screw tap head 102 is fixed inside the through hole 1 is ensured by the clamping hole 12 clamping the screw tap head 102.

In the present invention, as a preferable scheme, the limiting hole 11 and the limiting pin 2 are both square, the central position inside the limiting hole 11 is provided with a hexagonal protrusion 111, the plane of the top of the limiting pin 2 is provided with a hexagonal groove 21, when the limiting pin 2 is embedded inside the limiting hole 11, the hexagonal protrusion 111 is clamped inside the hexagonal groove 21, when the limiting hole 11 and the limiting pin 2 are matched with each other, the square setting enables the limiting pin 2 to limit rotation inside the limiting hole 11, meanwhile, because the tapping pressure of the screw head 102 inside the screw hole is large, the central positions of the limiting hole 11 and the limiting pin 2 are suspended and free from stress, so that the limiting pressure between the limiting hole 11 and the limiting pin 2 is concentrated on the edge surfaces of the limiting pin 2 and the limiting hole 11, in view of this, the central position of the top of the screw head 102 is limited from the central position by embedding the hexagonal protrusion 111 inside the hexagonal groove 21, not only is the operating rod 101 further ensured to drive the screw tap head 102 to rotate together, but also the edge surface of the limiting hole 11 is effectively protected, and the limiting effect of the limiting pin 2 on the limiting hole 11 and other screw tap heads 102 is ensured after the screw tap head 102 is subsequently replaced.

In the utility model, as a preferable scheme, a cross groove 121 is axially formed in the clamping hole 12, a plurality of saw-tooth protrusions 122 are distributed on the inner wall of the clamping hole 12, the outer side wall of the top of the tap head 102 is a frosted surface 4, when the clamping hole 12 clamps the top of the tap head 102, the saw-tooth protrusions 122 abut against the frosted surface 4, the setting of the cross groove 121 enables the caliber of the clamping hole 12 to have certain elastic telescopic performance, when the threaded port 32 is in threaded connection with the clamping hole 12, the threaded port 32 can press the clamping hole 12, so that the caliber of the clamping hole 12 is telescopic and small, the clamping hole 12 can tightly press the top of the tap head 102, and the saw-tooth protrusions 122 abut against the frosted surface 4, so that the friction force between the inner wall of the clamping hole 12 and the top of the tap head 102 is increased, and the stability of the top of the tap head 102 fixed inside the clamping hole 12 is further improved.

In the present invention, as a preferable scheme, the aperture of the screw hole 32 gradually decreases from outside to inside, the hexagonal clamping surface 5 is disposed on the outer side of the screw hole 32, when the screw hole 32 is screwed on the fixing screw 121, the hexagonal wrench rotates the hexagonal clamping surface 5 to facilitate the operation, and then, the aperture of the screw hole 32 is set such that the pressure of the screw hole 32 on the clamping hole 12 is gradually increased, so that on one hand, the screw hole 32 can be gradually connected on the clamping hole 12, and on the other hand, the setting such that the pressure of the screw hole 32 on the clamping hole 12 is gradually increased to protect the clamping hole 12.

In the present invention, as a preferable scheme, the through hole 6 is axially formed in the top of the tap head 102, when the top of the tap head 102 is embedded in the through hole 1, the through hole 6 is correspondingly located inside the cross groove 121, and when the tap head 102 needs to be subsequently removed from the through hole 1, the tap head 102 is sometimes clamped on the through hole 1, at this time, a rod body is selected from the outside to pass through the through hole 6, and the tap head 102 is removed from the through hole 1 by manually pulling the rod body, so that the arrangement does not need to manually hold the tap head 102, which not only facilitates the separation of the tap head 102 from the through hole 1, but also avoids the tap head 102 from hurting the hand of a human body.

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 manual tapping instrument of hydraulic jack part screw processing which the structure includes action bars (101) and tap head (102), its characterized in that: the structure of the operating rod comprises a fixed hoop (3), a through hole (1) is drilled in the end part of the operating rod (101), the through hole (1) is sequentially divided into a limiting hole (11) and a clamping hole (12) from inside to outside, and the screw cone head (102) is detachably inserted into the through hole (1);

the top of the screw tap head (102) is provided with a limiting pin (2) embedded in the limiting hole (11), the limiting pin (2) is matched with the limiting hole (11) to enable the screw tap head (102) to be embedded in the through hole (1) in a limiting rotating mode, the outer side of the clamping hole (12) is provided with a fixing thread (121), the fixing hoop (3) comprises a sleeve opening (31) movably sleeved on the screw tap head (102) and a thread opening (32) connected with the fixing thread (121), and the thread opening (32) presses the clamping hole (12) to enable the clamping hole (12) to axially clamp the screw tap head (102).

2. The hand tapping tool for the screw hole processing of the part of the oil jack as claimed in claim 1, wherein: spacing hole (11) spacer pin (2) are square, the inside central point in spacing hole (11) puts and is equipped with hexagonal arch (111), the plane at spacer pin (2) top is equipped with hexagonal recess (21), spacer pin (2) embedding is in during the inside of spacing hole (11), hexagonal arch (111) card is in the inside of hexagonal recess (21).

3. The hand tapping tool for the screw hole processing of the part of the oil jack as claimed in claim 1, wherein: the wire taper head clamping structure is characterized in that a cross groove (121) is axially formed in the clamping hole (12), a plurality of sawtooth protrusions (122) are distributed on the inner wall of the clamping hole (12), the outer side wall of the top of the wire taper head (102) is a frosted surface (4), and when the clamping hole (12) clamps the top of the wire taper head (102), the sawtooth protrusions (122) abut against the frosted surface (4).

4. The hand tapping tool for the screw hole processing of the part of the oil jack as claimed in claim 1, wherein: the aperture of the thread opening (32) is gradually reduced from outside to inside, and a hexagonal clamping surface (5) is arranged on the outer side of the thread opening (32).

5. The hand tapping tool for the screw hole processing of the part of the oil jack as claimed in claim 3, wherein: the top of the screw tap head (102) is axially provided with a through hole (6), and when the top of the screw tap head (102) is embedded in the through hole (1), the through hole (6) is correspondingly positioned in the cross groove (121).

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