CN112496756B - Manual tapping guide tool - Google Patents
Manual tapping guide tool Download PDFInfo
- Publication number
- CN112496756B CN112496756B CN202011369398.8A CN202011369398A CN112496756B CN 112496756 B CN112496756 B CN 112496756B CN 202011369398 A CN202011369398 A CN 202011369398A CN 112496756 B CN112496756 B CN 112496756B
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- screw
- hole
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- clamp plate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/02—Machine tools for performing different machining operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23G—THREAD CUTTING; WORKING OF SCREWS, BOLT HEADS, OR NUTS, IN CONJUNCTION THEREWITH
- B23G1/00—Thread cutting; Automatic machines specially designed therefor
- B23G1/44—Equipment or accessories specially designed for machines or devices for thread cutting
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Drilling And Boring (AREA)
Abstract
The utility model provides a manual tapping direction frock, is including the work platform that is used for placing the machined part, the both sides that lie in the machined part on the work platform all are equipped with the jack, lie in on the work platform and be equipped with a plurality of installation screws between jack and the machined part, the machined part upper end is equipped with the guide holder of taking the cylindrical structure of step, and the central point on the guide holder up end puts and is equipped with the central through-hole that is used for the fixed mounting screw tap, the jack upper end is equipped with the clamp plate, and the jack upper end is arranged in to the one end of clamp plate, and on the step of guide holder was arranged in to the other end of clamp plate, the clamp plate intermediate position was equipped with the perforation, installs double threaded screw in the perforation, and double threaded screw's lower extreme is fixed in the installation screw, and double threaded screw's upper end is installed and is used for compressing tightly the gland nut of clamp plate. The problem of screw inclination caused by tapping only by visual inspection of a fitter is solved, the machining precision and the machining efficiency are improved, and the effectiveness and the reliability of screw fastening connection after parts are assembled can be guaranteed.
Description
Technical Field
The invention relates to a manual tapping guide tool.
Background
In the case where machine tapping or non-machine tapping equipment is not available, part screw holes are often tapped by a fitter manually by means of visual inspection with a screw tap or using a simple block.
However, the screw tap for the manual use of the bench worker is often irregularly inclined due to the visual inspection error by means of the visual inspection method, even if the screw tap is positioned by using a simple block, the screw tap can be inclined in the direction without the block, the repair workload is increased, and even parts can be scrapped due to the irregular threads and the broken threads of the screw due to repair. In addition, whether the screw tap is perpendicular to the surface of the part needs to be repeatedly observed and judged by means of visual inspection during tapping, so that the accuracy is not high enough, and the machining efficiency is low.
Disclosure of Invention
The invention aims to provide a manual tapping guide tool to solve the problems in the background technology.
The technical scheme who takes for realizing above-mentioned purpose is, a manual tapping direction frock, including the work platform that is used for placing the machined part, the both sides that lie in the machined part on the work platform all are equipped with the jack, lie in on the work platform and are equipped with a plurality of installation screw holes between jack and the machined part, the machined part upper end is equipped with the guide holder of taking the cylindrical structure of step, and the central point on the guide holder up end puts and is equipped with the central through-hole that is used for fixed mounting screw tap, the jack upper end is equipped with the clamp plate, and the jack upper end is arranged in to the one end of clamp plate, and on the step of guide holder was arranged in to the other end of clamp plate, the clamp plate intermediate position was equipped with the perforation, installs double-end screw in the perforation, and double-end screw's lower extreme is fixed in the installation screw hole, and double-end screw's upper end is installed and is used for compressing tightly the gland nut of clamp plate.
Further, the jack includes base and adjusting screw, through fine tooth threaded connection between base and the adjusting screw, the excircle of base and adjusting screw's top and excircle all are equipped with annular knurl reticulate pattern structure, and the both hands of being convenient for are grabbed firmly base and adjusting screw respectively and are not skidded to rotatory adjusting screw adjusts the height that needs with the jack.
Furthermore, the central through hole is a through type through hole vertical to the end face of the bottom of the guide seat, a fan-shaped observation hole is formed in one side of the central through hole, and the fan-shaped observation hole is tangent to the central through hole.
Advantageous effects
Compared with the prior art, the invention has the following advantages.
1. According to the invention, the working part of the screw tap is plugged into the central through hole on the guide seat, and after the screw on the workpiece is guided and tapped, the perpendicularity of the axis of the screw thread and the surface of the workpiece can be ensured, so that the problem of screw hole inclination caused by visual tapping only by a fitter is avoided, the processing precision and the processing efficiency are improved, and the effectiveness and the reliability of screw fastening connection after the parts are assembled can be ensured;
2. the tool is simple in structure, economical and feasible, and also applicable to drilling and reaming guide of electric hand drills of various specifications.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a front view of the structure of the guide base of the present invention;
fig. 3 is a structural bottom view of the guide holder of the present invention.
Detailed Description
The invention is further described with reference to the following examples and the accompanying drawings.
A manual tapping guide tool comprises a working platform 9 for placing a workpiece 8, as shown in figures 1-3, jacks 2 are arranged on the two sides of the working platform 9 positioned on the workpiece 8, a plurality of mounting screw holes 7 are arranged on the working platform 9 positioned between the jacks 2 and the workpiece 8, the upper end of the workpiece 8 is provided with a guide seat 1 with a step cylindrical structure, the central position on the upper end surface of the guide seat 1 is provided with a central through hole 11 for fixedly mounting a screw tap 6, the upper end of the jack 2 is provided with a pressing plate 3, one end of the pressing plate 3 is arranged at the upper end of the jack 2, the other end of the pressing plate 3 is arranged on the step of the guide seat 1, the middle position of the pressing plate 3 is provided with a through hole 12, a double-end screw 4 is installed in the through hole 12, the lower end of the double-end screw 4 is fixed in the installation screw hole 7, and a compression nut 5 used for compressing the pressing plate 3 is installed at the upper end of the double-end screw 4.
Jack 2 includes base 201 and adjusting screw 202, through fine tooth threaded connection between base 201 and the adjusting screw 202, the excircle of base 201 and the top and the excircle of adjusting screw 202 all are equipped with the annular knurl reticulate pattern structure, are convenient for both hands to grasp base 201 and adjusting screw 202 respectively firmly and do not skid, so that rotatory adjusting screw 202 adjusts jack 2 to required height.
The central through hole 11 is a through hole perpendicular to the end face of the bottom of the guide seat 1, a fan-shaped observation hole 10 is arranged on one side of the central through hole 11, and the fan-shaped observation hole 10 is tangent to the central through hole 11.
When the method is implemented specifically, the bottom end face of the guide seat 1 is a reference A face which is attached to a machining face of a machined part, the reference A face is reasonable in flatness, the central through hole 11 and the reference A face are reasonable in verticality, and the central through hole 11 and the outer diameter of a working part of the screw tap 6 are reasonable in fit clearance, so that the verticality between a threaded axis machined after manual tapping and the surface of the machined part 8 is guaranteed, and the problem of screw hole inclination caused by visual tapping only by a fitter is solved. The reasonable planeness of the reference A surface can ensure that the guide seat 1 is in good contact with the surface of the machined part 8, and the requirement for the perpendicularity of the central through hole 11 and the reference A surface is met.
The perpendicularity requirement between the central through hole 11 and the reference A surface can ensure that the working part of the screw tap 6 is led into the guide through hole 11, and after the tapping of the screw hole on the surface of the machined part 8 which needs to be tapped is observed from the fan-shaped observation hole 10, the thread axis on the machined part 8 can reach the corresponding perpendicularity with the surface.
The fit clearance between the central through hole 11 and the outer diameter of the working part of the screw tap 6 can ensure that the working part of the screw tap 6 can be easily led into the central through hole 11 and the screw tap 6 can vertically tap into a screw hole of a workpiece under the guide of the central through hole 11 without shaking.
Leading-in central through hole 11 of working position of screw tap 6 looks into from dress fan-shaped observation hole 10 and aims at the machined part screw on the surface that must attack the screw thread, and benchmark A face is put in the machined part screw on the surface that must attack the screw thread, with the leading-in central through hole 11 on the guide holder 1 of working position of screw tap 6, looks into the screw mouth chamfer that must attack the screw thread with the leading-in screw thread of cutting position cone end of screw tap 6 through fan-shaped observation hole 10, guarantees to tap the screw tap axis and tap axis coincidence location back tapping.
In the invention, a plurality of mounting screw holes 7 for mounting the double-threaded screw 4 are arranged on the working platform 9, and one end of the double-threaded screw 4 can be mounted on the working platform 9 and can be detached; jack 2 is formed by base 201 and adjusting screw 202 combination, and base 201 and adjusting screw 202 are equipped with fine tooth threaded connection, consequently have self-locking function, and base 201 excircle and adjusting screw 202 top excircle all are equipped with the annular knurl reticulation, are convenient for both hands to grasp base 201 and adjusting screw 202 firmly respectively and do not skid with rotatory adjusting screw 202 with jack 2 adjustment to required height.
The reference A surface of the guide seat 1 is used for positioning the end surface of the surface of a workpiece 8, the central through hole 11 of the guide seat 1 is used for guiding the working part of the tap 6, and the fan-shaped observation hole 10 of the guide seat 1 is used for observing the cone end of the cutting part of the tap into a screw hole needing tapping.
The working principle of the invention is that a workpiece 8 needing tapping is placed on a working platform 9, a reference A surface of a guide seat 1 is positioned at a screw hole on the surface of the workpiece 8 needing tapping, a screw tap working position is led into a central through hole of the guide seat 1, a conical end of a screw tap cutting position is led into a screw hole chamfer needing tapping by observing from a fan-shaped observation hole 10 on the guide seat 1, after the axis of the screw tap is superposed and positioned with the axis of the screw hole, pressing and combining parts are arranged to press the workpiece 8 and the guide seat 1 on the working platform 9 together: one end of a double-end screw 4 is screwed into an installation screw hole 7 on the working platform 9, the jack 2 is placed on the working platform 9, the adjusting screw 202 in the jack is adjusted to enable the top surface of the adjusting screw 202 to be flush with the step surface of the guide seat 1, one end of the pressing plate 3 is placed on the top surface of the adjusting screw 202, the other end of the pressing plate is placed on the step surface of the guide seat 1, and then the pressing plate is pressed tightly by a pressing nut 5.
And (3) rotating the screw tap to tap the threads at the positioning part on the workpiece 8 by using a special hand-operated reaming hand for the screw tap 6, and after finishing tapping, respectively moving the guide tool to the other screw holes of the workpiece 8 which need to be tapped to tap the threads by using the same method.
Reasonable fit clearance is selected according to the series of the outer diameters of the working parts of various screw taps, a series of guide seats 1 can be manufactured, when the screw holes with different sizes on the part are tapped by the screw tap with the hand by using a guide tool, only the corresponding guide seats 1 need to be replaced, and therefore, the processing cost is low, and the operation is simple.
Optionally, under the condition that the guide seat 1 cannot be pressed by the jack 2, the pressing plate 3, the double-thread screw 4 and the compression nut 5 in a combined mode due to installation position limitation and the like, the cutting force of manual tapping is small and controllable, the reference A surface of the guide seat 1 can be placed at a screw hole on the surface of a part needing tapping, and the screw thread on the part can be tapped by guiding the working position of the manual tap into a central through hole of the guide seat 1 after the step surface of the guide seat 1 is directly pressed by a hand to be positioned.
The invention solves the problems that whether the screw tap is vertical to the surface of a part needs to be repeatedly observed and judged by a fitter when tapping by means of visual inspection, the accuracy is not high enough, the machining efficiency is low, and the screw hole is often irregularly inclined due to visual inspection errors. Therefore, the invention provides the manual screw tap tapping guide tool which is simple in structure and convenient to operate, can effectively guarantee the verticality requirement of manual screw tap tapping, and improves the machining precision and efficiency.
Claims (1)
1. The manual tapping guide tool comprises a working platform (9) for placing a workpiece (8), and is characterized in that jacks (2) are arranged on two sides of the workpiece (8) on the working platform (9), a plurality of installation screw holes (7) are formed in the working platform (9) between the jacks (2) and the workpiece (8), a guide seat (1) with a step cylindrical structure is arranged at the upper end of the workpiece (8), a central through hole (11) for fixedly installing a screw tap (6) is formed in the central position of the upper end face of the guide seat (1), a pressing plate (3) is arranged at the upper end of the jack (2), one end of the pressing plate (3) is arranged at the upper end of the jack (2), the other end of the pressing plate (3) is arranged on a step of the guide seat (1), a through hole (12) is formed in the middle position of the pressing plate (3), and a double-head screw (4) is installed in the through hole (12), the lower end of the double-end screw (4) is fixed in the mounting screw hole (7), and the upper end of the double-end screw (4) is provided with a compression nut (5) for compressing the pressure plate (3); the jack (2) comprises a base (201) and an adjusting screw rod (202), the base (201) is connected with the adjusting screw rod (202) through fine threads, and knurled reticulate patterns are arranged on the outer circle of the base (201) and the top and the outer circle of the adjusting screw rod (202) so that two hands can respectively grasp the base (201) and the adjusting screw rod (202) without slipping, and the adjusting screw rod (202) can be rotated to adjust the jack (2) to a required height; the central through hole (11) is a through hole perpendicular to the end face of the bottom of the guide seat (1), a fan-shaped observation hole (10) is formed in one side of the central through hole (11), and the fan-shaped observation hole (10) is tangent to the central through hole (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011369398.8A CN112496756B (en) | 2020-11-30 | 2020-11-30 | Manual tapping guide tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011369398.8A CN112496756B (en) | 2020-11-30 | 2020-11-30 | Manual tapping guide tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112496756A CN112496756A (en) | 2021-03-16 |
| CN112496756B true CN112496756B (en) | 2022-08-05 |
Family
ID=74967597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011369398.8A Active CN112496756B (en) | 2020-11-30 | 2020-11-30 | Manual tapping guide tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112496756B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB815360A (en) * | 1957-08-08 | 1959-06-24 | Douglas Ferdinand Theodore Des | A guide for use with hand operated rotary cutting tools |
| CN2810850Y (en) * | 2005-06-27 | 2006-08-30 | 邹城市技工学校 | Hand-operated tap correcting unit |
| JP3139750U (en) * | 2007-12-13 | 2008-02-28 | 那須電機鉄工株式会社 | Manual thread cutting tool |
| CN201446320U (en) * | 2009-09-02 | 2010-05-05 | 江阴市振江钢结构有限公司 | Screw tap guide sleeve |
| CN203751455U (en) * | 2014-04-02 | 2014-08-06 | 卡斯马汽车系统(上海)有限公司 | Hand tapping perpendicularity corrector |
| CN207087368U (en) * | 2017-06-23 | 2018-03-13 | 上海马力索精密机械有限公司 | A kind of piston pin axial end boring bar tool |
| CN110052671A (en) * | 2019-04-30 | 2019-07-26 | 中国船舶重工集团公司第七0七研究所 | A kind of TiC base steel bonded carbide closely-pitched external screw thread milling attachment and its numerical control milling method |
| CN210967341U (en) * | 2019-07-19 | 2020-07-10 | 北京航天新风机械设备有限责任公司 | Threaded hole tapping and positioning tool for vertical bus of conical cabin |
| CN211991300U (en) * | 2020-05-09 | 2020-11-24 | 三一重机有限公司 | Tapping tool |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10231252A1 (en) * | 2002-07-11 | 2004-01-29 | Helmut Ginzinger | Guide top for centring and guiding a drill or other tool has guide channel for inserting tool and fixing element with tapering bearing faces underneath to fit onto surface of workpiece being machined |
| CN202207820U (en) * | 2011-07-27 | 2012-05-02 | 河南兴华机械制造有限公司 | Semicircular drill bushing |
| CN204234818U (en) * | 2014-09-19 | 2015-04-01 | 中航通飞华南飞机工业有限公司 | A kind of fuselage wing docking Surface Method is to drill jig |
| CN111438408B (en) * | 2020-05-30 | 2022-11-04 | 李让勤 | Tapping stabilizer for tapping of bench worker |
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2020
- 2020-11-30 CN CN202011369398.8A patent/CN112496756B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB815360A (en) * | 1957-08-08 | 1959-06-24 | Douglas Ferdinand Theodore Des | A guide for use with hand operated rotary cutting tools |
| CN2810850Y (en) * | 2005-06-27 | 2006-08-30 | 邹城市技工学校 | Hand-operated tap correcting unit |
| JP3139750U (en) * | 2007-12-13 | 2008-02-28 | 那須電機鉄工株式会社 | Manual thread cutting tool |
| CN201446320U (en) * | 2009-09-02 | 2010-05-05 | 江阴市振江钢结构有限公司 | Screw tap guide sleeve |
| CN203751455U (en) * | 2014-04-02 | 2014-08-06 | 卡斯马汽车系统(上海)有限公司 | Hand tapping perpendicularity corrector |
| CN207087368U (en) * | 2017-06-23 | 2018-03-13 | 上海马力索精密机械有限公司 | A kind of piston pin axial end boring bar tool |
| CN110052671A (en) * | 2019-04-30 | 2019-07-26 | 中国船舶重工集团公司第七0七研究所 | A kind of TiC base steel bonded carbide closely-pitched external screw thread milling attachment and its numerical control milling method |
| CN210967341U (en) * | 2019-07-19 | 2020-07-10 | 北京航天新风机械设备有限责任公司 | Threaded hole tapping and positioning tool for vertical bus of conical cabin |
| CN211991300U (en) * | 2020-05-09 | 2020-11-24 | 三一重机有限公司 | Tapping tool |
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| Publication number | Publication date |
|---|---|
| CN112496756A (en) | 2021-03-16 |
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