CN110919578A

CN110919578A - Chuck wrench

Info

Publication number: CN110919578A
Application number: CN202010011747.2A
Authority: CN
Inventors: 邹积生; 孙宁宁; 姚洪卫; 毕立平; 隋玉山; 周传宁
Original assignee: WEIHAI WEILI HIGH-GRADE TOOLS Co Ltd
Current assignee: WEIHAI WEILI HIGH-GRADE TOOLS Co Ltd
Priority date: 2020-01-07
Filing date: 2020-01-07
Publication date: 2020-03-27

Abstract

The invention relates to a chuck wrench, comprising: jack catch, adjusting bolt, lock nut, rivet, jack catch seat, adjusting nut, handle, its characterized in that: two jack catchs pass through rivet and jack catch seat to be connected and can freely rotate in a flexible way, jack catch seat middle part is equipped with the screw hole and links to each other with adjusting bolt, adjusting bolt is last to have lock nut, jack catch seat lower extreme is equipped with two sections screw threads, one section links to each other with adjusting nut, the adjusting nut top is equipped with the chamfer, when adjusting nut upwards turn-knob, the jack catchs under the promotion of adjusting nut chamfer face, the open volume increases, when adjusting nut downwards turn-knob, the jack catch opening reduces, another section screw thread links to each other with the handle, during the use operator rotates adjusting nut and adjusts jack catch opening size, behind chucking cutter body nut groove, adjust adjusting bolt top at cutter body nut excircle, then lock nut, form three fulcrum, it is tight to press from both sides, it is firm to press from both sides than the eave tile spanner clamp, the turning handle, it.

Description

Chuck wrench

Technical Field

The invention relates to the technical field of manual hardware tools, in particular to a multipurpose manual tool wrench for a high-grade numerical control machining machine tool.

Background

At present, a large number of cutter bodies of common numerical control high-grade machine tools are available, such as American ER, BPS, NBN and Chinese LN series, cutter body chuck nuts are required to be assembled and disassembled, hook end wrenches of different specifications are required, the existing hook end wrench consists of two hook ends, the phenomena of small contact surface, uneven stress, easiness in falling off and the like exist, certain potential safety hazards exist, and cutter body nuts of various types can only use hook end wrenches of corresponding specifications. A digit control machine tool uses the unfavorable safety of multiple instrument, lean production and 6S on-the-spot settlement management, changes the instrument when changing the cutter body moreover, and the operation is wasted time and energy, has increased the additional time for actual production, influences work efficiency.

Disclosure of Invention

The invention aims to overcome the defects of the technology and provide the chuck wrench which has the advantages of reasonable design, simple structure, easy manufacture, convenient use and firm clamping and can assemble and disassemble cutter body nuts of different series with any diameters.

The technical scheme adopted by the invention for solving the technical problem is as follows: a chuck wrench, which is characterized in that: the wrench includes: the clamping jaw is provided with two clamping jaws, the head of each clamping jaw is provided with a protrusion, the width of each protruding hook head is smaller than that of a tool shank nut groove needing to be turned, the gap during working is effectively guaranteed, and the arc of the corner of each protruding hook head is excessive, so that the strength of the protruding hook head is enhanced, and the occurrence of a fracture phenomenon is prevented; the tail part of the clamping jaw is provided with an arc-shaped bulge, the arc-shaped bulge is connected with an inclined plane, and the tail part of the clamping jaw is also provided with a through hole connected with the clamping jaw seat.

The left side and the right side of the jaw seat are provided with a groove and two through holes, the two jaws are respectively arranged in the two grooves of the jaw seat and connected with the jaw seat through a rivet, and the jaws flexibly rotate by taking the rivet as an axis; the middle part of the jaw seat is provided with a threaded hole, an adjusting bolt is connected with the jaw seat through the threaded hole, and a locking nut is arranged on the adjusting bolt; the lower end of the clamping jaw seat is provided with two sections of threads with different sizes, one section with a large outer diameter is connected with the adjusting nut, and the other section with a small outer diameter is connected with the handle.

The adjusting nut middle part is equipped with the corresponding screw hole of the big screw thread of jack catch seat lower extreme external diameter, and the adjusting nut knob is on this screw thread, the adjusting nut top is equipped with the chamfer, and the chamfer face corresponds with the inclined plane that the protruding continuous of jack catch afterbody arcuation, and when the adjusting nut was upwards turned round, the jack catch rotated upwards under the promotion of adjusting nut chamfer face, and the jack catch opening volume reduces, and when the adjusting nut was turned round downwards, the jack catch rotated downwards, and the opening volume increases, because the opening volume of jack catch can freely be adjusted, so can realize the cutter body nut of centre gripping optional size.

The middle of the handle is provided with a threaded hole, and the handle is in threaded connection with the lower end of the clamping jaw seat.

When the tool body nut is used, an operator rotates the adjusting nut to adjust the opening size of the clamping jaw, after the two clamping jaws protrude to clamp the tool body nut groove tightly, the adjusting bolt is adjusted to enable the head of the adjusting bolt to be abutted to the excircle of the tool body nut, then the locking nut is locked to form three supporting points, the clamping is firm, the locking is firmer than that of a hook head spanner, the handle is rotated, the nut is more convenient to assemble and disassemble, and the tool body nut is suitable for assembling and disassembling tool body nuts with any size in.

The adjustable nut cutter has the advantages of reasonable design, simple structure, easy manufacture, convenient use and operation, time and labor saving, firm clamping during assembly and disassembly, capability of adjusting the opening amount to realize the assembly and disassembly of the nut cutter bodies of different series and any sizes, and great improvement on the working efficiency of operators.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a jaw;

FIG. 3 is a schematic diagram of the mechanism of the pawl seat;

FIG. 4 is a top view of FIG. 3;

the labels in the figure are: 1. the clamp comprises a clamping jaw, 2, an adjusting bolt, 3, a locking nut, 4, a rivet, 5, a clamping jaw seat, 6, an adjusting nut, 7 and a handle.

Detailed Description

As shown in fig. 1 to 4: the technical scheme adopted by the invention for solving the technical problem is as follows: a chuck wrench, which is characterized in that: the wrench includes: the clamping jaw comprises two clamping jaws 1, an adjusting bolt 2, a locking nut 3, a rivet 4, a clamping jaw seat 5, an adjusting nut 6 and a handle 7, wherein the head of each clamping jaw 1 is provided with a bulge, the width of each bulge hook head is smaller than that of a handle nut groove needing to be turned, the gap in working is effectively ensured, and the arc of the corner of each bulge hook head is excessive, so that the strength of each bulge hook head is enhanced, and the occurrence of a fracture phenomenon is prevented; the tail part of the clamping jaw 1 is provided with an arc-shaped bulge, the arc-shaped bulge is connected with an inclined plane, and the tail part of the clamping jaw 1 is also provided with a through hole connected with a clamping jaw seat 5.

The left side and the right side of the jaw seat 5 are provided with a groove and two through holes, the two jaws 1 are respectively arranged in the two grooves of the jaw seat 5 and are connected with the jaw seat 5 through rivets 4, and the jaws 1 flexibly rotate by taking the rivets 4 as axes; the middle part of the jaw seat 5 is provided with a threaded hole, the adjusting bolt 2 is connected with the jaw seat 5 through the threaded hole, and the adjusting bolt 2 is provided with a locking nut 3; the lower end of the clamping jaw seat 5 is provided with two sections of threads with different sizes, one section with a large outer diameter is connected with the adjusting nut 6, and the other section with a small outer diameter is connected with the handle 7.

The middle part of the adjusting nut 6 is provided with a threaded hole corresponding to a thread with a large outer diameter at the lower end of the jaw seat 5, the adjusting nut 6 is screwed on the thread, the top end of the adjusting nut 6 is provided with a chamfer, a chamfer surface corresponds to an inclined surface connected with an arc-shaped bulge at the tail part of the jaw 1, when the adjusting nut 6 is screwed upwards, the jaw 1 is pushed by the chamfer surface of the adjusting nut 6 to rotate upwards, the opening amount of the jaw 1 is reduced, when the adjusting nut 6 is screwed downwards, the jaw 1 rotates downwards, the opening amount is increased, and the opening amount of the jaw 1 can be adjusted freely, so that a cutter body nut with any size can be clamped.

The middle of the handle 7 is provided with a threaded hole, and the handle 7 is in threaded connection with the lower end of the jaw seat 5.

When the tool is used, an operator rotates the adjusting nut 6 to adjust the opening size of the clamping jaws 1, after the two clamping jaws 1 protrude to clamp the tool body nut groove, the adjusting bolt 2 is adjusted to enable the head of the adjusting bolt 2 to be abutted to the excircle of the tool body nut, then the locking nut 3 is locked to form three supporting points, the clamping is firm, the tool body nut is more conveniently assembled and disassembled compared with a hook spanner, the handle 7 is rotated, and the tool body nut is suitable for assembling and disassembling tool bodies nuts of ER and LN series with any size.

The invention has reasonable design, simple structure, easy manufacture, convenient use and operation, time and labor saving, not only is firm in clamping during assembling and disassembling, but also can adjust the opening amount to realize the assembly and disassembly of cutter body nuts with different series and arbitrary sizes, thereby greatly improving the working efficiency of operators.

Claims

1. A chuck wrench, which is characterized in that: the wrench comprises two jaws, a rivet, two jaw seats, an adjusting nut and a handle, wherein the head of each jaw is provided with a bulge, the tail of each jaw is provided with an arc-shaped bulge, the arc-shaped bulge is connected with an inclined plane, the left side and the right side of each jaw seat are provided with a groove and two through holes, the two jaws are respectively arranged in the two grooves of each jaw seat and are connected with the jaw seats through the rivet, and the jaws flexibly rotate by taking the rivet as an axis; the lower end of the jaw seat is provided with two sections of threads with different sizes, one section with large outer diameter is connected with the adjusting nut, one section with small outer diameter is connected with the handle, the middle part of the adjusting nut is provided with a threaded hole corresponding to the thread with large outer diameter at the lower end of the jaw seat, the adjusting nut is screwed on the thread, the top end of the adjusting nut is provided with a chamfer, and the chamfer surface corresponds to the inclined plane connected with the arc-shaped bulge at the tail part of the jaw.

2. The chuck wrench as in claim 1, further comprising an adjusting bolt and a locking nut, wherein: the middle part of the jaw seat is provided with a threaded hole, the adjusting bolt is connected with the jaw seat through the threaded hole in the middle part of the jaw seat, the adjusting bolt is provided with a locking nut, an operator rotates the adjusting nut to adjust the size of an opening of the jaw during use, the adjusting bolt is adjusted to abut against the outer circle of the cutter body nut after the cutter body nut groove is clamped, then the locking nut is locked to form three supporting points, and the clamping is firm.