CN114054870A - Screw tap for metal workpiece thread cutting - Google Patents
Screw tap for metal workpiece thread cutting Download PDFInfo
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- CN114054870A CN114054870A CN202111211011.0A CN202111211011A CN114054870A CN 114054870 A CN114054870 A CN 114054870A CN 202111211011 A CN202111211011 A CN 202111211011A CN 114054870 A CN114054870 A CN 114054870A
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- tap
- block
- screw tap
- movable
- hole
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- 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
- B23G5/00—Thread-cutting tools; Die-heads
- B23G5/02—Thread-cutting tools; Die-heads without means for adjustment
- B23G5/06—Taps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a screw tap for metal workpiece thread cutting, which comprises a screw tap and a positioning mechanism, wherein the positioning mechanism is arranged at one end of the screw tap and comprises a plurality of movable blocks and an adjusting mechanism, the adjusting mechanism comprises a movable rod, a through hole is formed in the middle of the screw tap, one end of the screw tap is fixedly connected with an installation seat, a plurality of installation grooves are formed in the installation seat at equal intervals, the inner cavity of each installation groove is connected with the movable blocks in a sliding and penetrating manner, and one end of the movable rod is fixedly connected with a fixed block in a penetrating manner. According to the invention, the movable rod moves in the inner cavity of the through hole by rotating the movable rod, and the movable rod is enabled to translate in the inner cavity of the through hole by utilizing the matching of the movable rod and the threaded hole, so as to drive the fixed block to move together, extrude one end of the movable block, adjust the position of the movable block, extrude the inner wall of the hole to be machined by the other end of the movable block, enable the screw tap and the hole to be machined to be positioned at the same axial center position, and ensure the stable tapping of the screw tap.
Description
Technical Field
The invention relates to the technical field of screw tap tools, in particular to a screw tap for metal workpiece thread cutting.
Background
The tap is a tool for processing internal threads, and can be divided into a spiral tap, an edge inclination tap, a straight-flute tap, a pipe thread tap and the like according to the shapes, and can be divided into a hand tap and a machine tap according to the use environment.
When using hand screw tap to carry out the tapping operation to the round hole of work piece, aim at the top of round hole with the one end of screw tap usually, it is fixed to utilize clamping tools to carry out the centre gripping to the top of screw tap, through rotating and pressing clamping tools, it rotates together to drive the screw tap, make the screw tap carry out the screw motion in the round hole position, process the inner wall of round hole, when the screw tap carries out the operation, need keep the perpendicular setting of screw tap, and the axle center of screw tap is in same straight line with the centre of a circle of round hole, and when manual tapping, usually through the manual removal screw tap of workman, make its one end and round hole to it, the operation degree of difficulty is big, and when carrying out the tapping, the skew appears easily in the screw tap, lead to the tapping appearance deviation.
Disclosure of Invention
The present invention is directed to a tap for thread cutting of a metal workpiece to solve the problems set forth in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: the screw tap for the thread cutting of the metal workpiece comprises a screw tap and a positioning mechanism, wherein the positioning mechanism is arranged at one end of the screw tap;
the positioning mechanism comprises a plurality of movable blocks and an adjusting mechanism, the movable blocks are arranged at one end of the screw tap, and the adjusting mechanism is arranged on the screw tap;
adjustment mechanism includes the movable rod, the through-hole has been seted up at the middle part of screw tap, the inner chamber of through-hole and the one end screw thread interlude of movable rod are connected, the one end fixedly connected with mount pad of screw tap, a plurality of mounting grooves have been seted up to the equidistance on the mount pad, the inner chamber and the movable block slip interlude of mounting groove are connected, the one end fixed interlude of movable rod is connected with the fixed block, the outer wall of fixed block is laminated with the one end of movable block mutually.
Preferably, the one end of through-hole is provided with the screw hole, the screw hole alternates with the one end screw thread of movable rod and is connected, the one end of fixed block is laminated with the one end of screw tap mutually.
Preferably, one end of the mounting seat is connected with a mounting block in a threaded inserting manner, one end of the mounting block is attached to one end of the mounting seat, and a groove is formed in the other end of the mounting block.
Preferably, the lateral wall fixedly connected with stopper of movable block one end, the stopper sets up in the inner chamber of mount pad, one side of movable block one end is provided with the chamfer.
Preferably, the middle part of the other end of the movable rod is provided with a mortise, the inner cavity of the mortise is movably clamped with a tenon, and one end of the tenon is fixedly connected with a round rod.
Preferably, the screw tap comprises a working part and a handle part, wherein the working part is provided with a plurality of spiral grooves, and the spiral grooves are arranged at one end of the screw tap in an annular array.
Preferably, the handle part comprises a handle rod and a fixed seat, the fixed seat is arranged at the other end of the screw tap, and the fixed seat is cuboid.
Preferably, one end of the screw tap is connected with a nut seat in a threaded penetrating manner, one end of the nut seat is fixedly connected with a plurality of fixing rods, and the fixing rods are arranged in an annular array at equal intervals.
Preferably, one end of the fixing rod is fixedly connected with a round block, and one end of the round block is fixedly connected with a rubber pad.
Preferably, one end of the mounting block is provided with an external thread, the inner wall of one end of the mounting base is provided with an internal thread, and one end of the mounting block is arranged in the inner cavity of the mounting base.
The invention has the technical effects and advantages that:
(1) according to the invention, the movable rod is driven to rotate by rotating the round rod by utilizing a matching arrangement mode of the movable rod, the through hole, the movable block and the fixed block, so that the movable rod moves in the inner cavity of the through hole, the movable rod is enabled to translate in the inner cavity of the through hole by utilizing the matching of the movable rod and the threaded hole, the fixed block is driven to move together, one end of the movable block is extruded, the position of the movable block is adjusted, the other end of the movable block is extruded on the inner wall of the hole to be machined, so that the screw tap and the hole to be machined are positioned at the same axial center position, and the stable tapping of the screw tap is ensured;
(2) according to the screw tap, the arrangement mode that the nut seat, the fixing rod and the round block are matched is utilized, the fixing rod and the round block are driven to move together by rotating the nut seat, so that the fixing rod and the round block move to one end of the screw tap, the fixing rod is arranged around the top end of a hole to be machined, one end of the screw tap is supported and fixed by utilizing the matching of the fixing rod and the round block, and the stable operation of the screw tap is guaranteed;
(3) according to the invention, the installation block is in threaded connection with the inner wall of the installation seat by rotating the installation block by utilizing the arrangement mode that the installation block is matched with the installation seat, the installation block is installed and fixed on the installation seat, the movement of the movable rod is limited, so that the movable rod cannot pass through the installation seat, and the stable movement of the movable rod is ensured.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
FIG. 2 is a front cross-sectional structural view of the tap of the present invention.
Fig. 3 is an enlarged schematic view of the invention at a in fig. 1.
Fig. 4 is a schematic front sectional view of the mounting seat of the present invention.
Fig. 5 is an enlarged schematic view of the invention at B of fig. 4.
Fig. 6 is an enlarged schematic view of fig. 1 at C according to the present invention.
FIG. 7 is a schematic view of a front cross-sectional structure of a mortise in accordance with the present invention.
FIG. 8 is a side view of the tap of the present invention.
In the figure: 1. a screw tap; 2. a positioning mechanism; 21. a movable block; 22. an adjustment mechanism; 221. a movable rod; 222. a through hole; 223. a mounting seat; 224. mounting grooves; 225. a fixed block; 3. a threaded hole; 4. mounting blocks; 5. a groove; 6. a limiting block; 7. chamfering; 8. b, mortise drilling; 9. a tenon; 10. a round bar; 11. a working part; 12. a handle; 13. a helical groove; 14. a handle bar; 15. a fixed seat; 16. a nut seat; 17. fixing the rod; 18. a round block; 19. and (7) a rubber pad.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a screw tap for thread cutting of a metal workpiece, which is shown in figure 1-and comprises a screw tap 1 and a positioning mechanism 2, wherein one end of the screw tap 1 is provided with threads and is used for tapping the workpiece, the positioning mechanism 2 is arranged at one end of the screw tap 1, and the positioning mechanism 2 is used for limiting the position of the screw tap 1, so that the screw tap 1 and a hole to be machined are positioned at the same axial center position, the stable tapping of the screw tap 1 is ensured, and the deviation is prevented from occurring during tapping;
the positioning mechanism 2 comprises a plurality of movable blocks 21 and an adjusting mechanism 22, the movable blocks 21 are arranged at one end of the screw tap 1 in a circular array at equal intervals, one end of each movable block 21 is arc-shaped and is attached to the inner wall of a hole to be machined, the position of the screw tap 1 is limited through the matching of the movable blocks 21 and the inner wall of the hole to be machined, the adjusting mechanism 22 is arranged on the screw tap 1, and the adjusting mechanism 22 is used for adjusting the position of the movable blocks 21 so that one end of each movable block 21 can extrude the inner wall of the hole to be machined, the stable operation of the screw tap 1 is guaranteed, and the use of the screw tap 1 is convenient;
the adjusting mechanism 22 comprises a movable rod 221, one end of the movable rod 221 is provided with an external thread, the diameter of the other end of the movable rod 221 is smaller than that of the end provided with the thread, the position of the movable block 21 is adjusted through the rotation of the movable rod 221, the middle part of the screw tap 1 is provided with a through hole 222, the through hole 222 is arranged on the screw tap 1 in a penetrating manner and is used for installing the movable rod 221, the inner cavity of the through hole 222 is in penetrating connection with the thread of one end of the movable rod 221, the movable rod 221 rotates in the inner cavity of the through hole 222, one end of the screw tap 1 is fixedly connected with an installation seat 223, the installation seat 223 is in a circular tube shape and is used for installing the movable block 21, the installation seat 223 is arranged at the middle position of one end of the screw tap 1, a plurality of installation grooves 224 are equidistantly arranged on the installation seat 223, the plurality of installation grooves 224 are equidistantly arranged on the side wall of the installation groove 224 in a circular array and are used for installing the movable block 21, and the inner cavity of the installation groove 224 is in sliding penetrating connection with the movable block 21, the outer wall of the movable block 21 is attached to the inner wall of the mounting groove 224, the movable block 21 slides in the inner cavity of the mounting groove 224, one end of the movable rod 221 is fixedly and alternately connected with a fixed block 225, the fixed block 225 is in a circular truncated cone shape and moves along with the rotation of the movable rod 221, the outer wall of the fixed block 225 is attached to one end of the movable block 21, and along with the movement of the fixed block 225, the outer wall of the fixed block 225 extrudes one end of the movable block 21, so that the movable block 21 slides in the inner cavity of the mounting groove 224, the position of the movable block 21 is adjusted, and one end of the movable block extrudes the inner wall of a hole to be processed;
one end of the through hole 222 is provided with a threaded hole 3, an inner thread is formed on the inner wall of one end of the through hole 222, an outer thread is formed on one end of the movable rod 221, the threaded hole 3 is in threaded penetrating connection with one end of the movable rod 221, the movable rod 221 is installed in the inner cavity of the through hole 222 through the matching of the movable rod 221 and the threaded hole 3, so that when the movable rod 221 is rotated, the movable rod 221 translates in the inner cavity of the through hole 222 to drive the fixed block 225 to move together, one end of the fixed block 225 is attached to one end of the screw tap 1 to limit the movement of the movable rod 221;
one end of the mounting base 223 is in threaded insertion connection with a mounting block 4, the mounting block 4 is in a convex shape, one end of the mounting block 4 is attached to one end of the mounting base 223, one end of the mounting block 4 is provided with an external thread, the inner wall of one end of the mounting base 223 is provided with an internal thread, the mounting block 4 is in threaded connection with the inner wall of the mounting base 223 by rotating the mounting block 4, the mounting block 4 is mounted and fixed on the mounting base 223, movement of the movable rod 221 is limited, the movable rod 221 cannot penetrate through the mounting base 223, one end of the mounting block 4 is arranged in the inner cavity of the mounting base 223, the other end of the mounting block 4 is provided with a groove 5, the groove 5 is in a long strip shape and is arranged in the middle of the mounting block 4, and the mounting block 4 can be conveniently rotated through the groove 5;
the side wall of one end of the movable block 21 is fixedly connected with a limiting block 6, the limiting block 6 is arranged in the inner cavity of the mounting seat 223, the limiting block 6 moves in the inner cavity of the mounting seat 223 along with the movable block 21, when the limiting block 6 moves to a position attached to the inner wall of the mounting seat 223, the limiting block 6 limits the movable block 21, the movable block 21 is prevented from being separated from the mounting seat 223, the stability of the movable block 21 is guaranteed, one side of one end of the movable block 21 is provided with a chamfer 7, the position of the chamfer 7 is attached to the outer wall of the fixed block 225, and the position of the chamfer 7 is arc-shaped, so that the movable block 21 is in better contact with the fixed block 225, and the fixed block 225 can extrude the movable block 21 conveniently;
the middle part of the other end of the movable rod 221 is provided with a mortise 8, a tenon 9 is movably clamped in an inner cavity of the mortise 8, the cross section of the mortise 8 is square, the tenon 9 is cuboid, the outer wall of the tenon 9 is attached to the inner wall of the mortise 8, one end of the tenon 9 is fixedly connected with a round rod 10, the round rod 10 is movably installed in the inner cavity of the mortise 8 through the tenon 9, the round rod 10 is installed at the other end of the movable rod 221, and the movable rod 221 is conveniently driven to rotate by rotating the round rod 10 and utilizing the matching of the mortise 8 and the tenon 9;
the screw tap 1 comprises a working part 11 and a handle part 12, the working part 11 is arranged at one end of the screw tap 1, an external thread is arranged on the working part 11 and used for tapping a workpiece, a plurality of spiral grooves 13 are arranged on the working part 11, the spiral grooves 13 are arranged at one end of the screw tap 1 in an annular array, when the spiral grooves 13 are used for tapping, generated chips are discharged along the inner cavity of the spiral grooves 13, meanwhile, lubricating oil is conveniently added to the screw tap 1 through the spiral grooves 13, and the spiral grooves 13 are convenient for the cutting processing of the screw tap 1;
the handle part 12 comprises a handle rod 14 and a fixed seat 15, the fixed seat 15 is arranged at the other end of the screw tap 1, the handle rod 14 is cylindrical, the fixed seat 15 is cuboid, the fixed seat 15 and an external clamp for clamping the screw tap 1 are fixedly installed, the screw tap 1 is driven to stably rotate, and tapping of a hole to be machined by using the screw tap 1 is facilitated;
one end of the screw tap 1 is threaded and connected with a nut seat 16 in an inserting manner, the nut seat 16 is in threaded connection with a working part 11 of the screw tap 1 and is mounted on the screw tap 1 to move, the nut seat 16 is moved on the screw tap 1 by rotating the nut seat 16, the nut seat 16 is convenient to mount and dismount, one end of the nut seat 16 is fixedly connected with a plurality of fixing rods 17, the fixing rods 17 are arranged in an annular array at equal intervals, the fixing rods 17 move along with the nut seat 16 to support one end of the screw tap 1, one end of each fixing rod 17 is fixedly connected with a round block 18, the round block 18 moves along with the fixing rods 17 to increase the contact area between the fixing rods 17 and the outside and improve the stability of connection between the fixing rods 17 and the outside, one end of the round block 18 is fixedly connected with a rubber pad 19, the round block 18 is in contact with the outside through the rubber pad 19 to increase the friction force, when the screw tap 1 performs tapping operation, through rotating nut seat 16, drive dead lever 17 and circle piece 18 and move together for dead lever 17 carries out the translation with circle piece 18, moves to the one end of screw tap 1, and rubber pad 19 and the surface contact and the extrusion of waiting to process the work piece make dead lever 17 set up around waiting the machined hole top, utilize dead lever 17 and circle piece 18's cooperation, support fixedly to the one end of screw tap 1, guarantee the stable operation of screw tap 1.
The working principle of the invention is as follows: when one end of the screw tap 1 is arranged at the position of a hole to be processed, the mounting seat 223 is positioned at the top of the inner cavity of the hole, the movable rod 221 is driven to rotate by rotating the round rod 10, so that the movable rod 221 moves in the inner cavity of the through hole 222, the movable rod 221 is enabled to translate in the inner cavity of the through hole 222 by utilizing the matching of the movable rod 221 and the threaded hole 3, the fixed block 225 is driven to move together, one end of the movable block 21 is extruded along with the movement of the fixed block 225, the movable block 21 slides in the inner cavity of the mounting groove 224, the position of the movable block 21 is adjusted, the other end of the movable block 21 extrudes the inner wall of the hole to be processed, the screw tap 1 and the hole to be processed are positioned at the same axial center position, the stable tapping of the screw tap 1 is ensured, meanwhile, the fixed rod 17 and the round block 18 are driven to move together by rotating the nut seat 16, so that the fixed rod 17 and the round block 18 translate and move to one end of the screw tap 1, the rubber pad 19 and the surface contact and the extrusion of waiting to process the work piece for dead lever 17 sets up around waiting to process the hole top, utilizes dead lever 17 and the cooperation of circle piece 18, supports fixedly to the one end of screw tap 1, guarantees the stable operation of screw tap 1.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (10)
1. The screw tap for the thread cutting of the metal workpiece comprises a screw tap (1) and a positioning mechanism (2), and is characterized in that the positioning mechanism (2) is arranged at one end of the screw tap (1);
the positioning mechanism (2) comprises a plurality of movable blocks (21) and an adjusting mechanism (22), the movable blocks (21) are arranged at one end of the screw tap (1), and the adjusting mechanism (22) is arranged on the screw tap (1);
adjustment mechanism (22) include movable rod (221), through-hole (222) have been seted up at the middle part of screw tap (1), the inner chamber of through-hole (222) alternates with the one end screw thread of movable rod (221) and is connected, the one end fixedly connected with mount pad (223) of screw tap (1), a plurality of mounting grooves (224) have been seted up equidistantly on mount pad (223), the inner chamber and the movable block (21) of mounting groove (224) slide to alternate and be connected, the one end fixedly alternate of movable rod (221) is connected with fixed block (225), the outer wall of fixed block (225) is laminated with the one end of movable block (21) mutually.
2. The tap for thread cutting of metal workpieces according to claim 1, wherein a threaded hole (3) is formed in one end of the through hole (222), the threaded hole (3) is in threaded insertion connection with one end of the movable rod (221), and one end of the fixed block (225) is attached to one end of the tap (1).
3. The tap for thread cutting of metal workpieces according to claim 1, wherein a mounting block (4) is threadedly inserted into one end of the mounting seat (223), one end of the mounting block (4) is attached to one end of the mounting seat (223), and the other end of the mounting block (4) is provided with a groove (5).
4. The tap for thread cutting of metal workpieces according to claim 1, wherein a limit block (6) is fixedly connected to the side wall of one end of the movable block (21), the limit block (6) is arranged in the inner cavity of the mounting seat (223), and a chamfer (7) is arranged on one side of one end of the movable block (221).
5. The tap for thread cutting of metal workpieces according to claim 1, wherein a mortise (8) is formed in the middle of the other end of the movable rod (221), a tenon (9) is movably clamped in an inner cavity of the mortise (8), and a round rod (10) is fixedly connected to one end of the tenon (9).
6. The tap for thread cutting of metal workpieces according to claim 1, characterized in that said tap (1) comprises a working portion (11) and a shank portion (12), said working portion (11) having a plurality of spiral flutes (13) formed thereon, said plurality of spiral flutes (13) being disposed at one end of the tap (1) in an annular array.
7. A tap for thread cutting of metal workpieces according to claim 6, characterized in that said shank (12) comprises a shank (14) and a holder (15), said holder (15) being arranged at the other end of the tap (1), said holder (15) being cuboid-shaped.
8. A tap for thread cutting of metal workpieces according to claim 1, characterized in that a nut seat (16) is threadedly inserted into one end of the tap (1), a plurality of fixing rods (17) are fixedly connected to one end of the nut seat (16), and the plurality of fixing rods (17) are equidistantly arranged in a circular array.
9. A tap for thread cutting of metal workpieces according to claim 8, characterized in that a round block (18) is fixedly connected to one end of said fixing rod (17), and a rubber pad (19) is fixedly connected to one end of said round block (18).
10. A tap for thread cutting of metal workpieces according to claim 3, characterized in that one end of the mounting block (4) is externally threaded, the inner wall of one end of the mounting seat (223) is internally threaded, and one end of the mounting block (4) is arranged in the inner cavity of the mounting seat (223).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111211011.0A CN114054870B (en) | 2021-10-18 | 2021-10-18 | Screw tap for metal workpiece thread cutting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111211011.0A CN114054870B (en) | 2021-10-18 | 2021-10-18 | Screw tap for metal workpiece thread cutting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114054870A true CN114054870A (en) | 2022-02-18 |
| CN114054870B CN114054870B (en) | 2023-02-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111211011.0A Active CN114054870B (en) | 2021-10-18 | 2021-10-18 | Screw tap for metal workpiece thread cutting |
Country Status (1)
| Country | Link |
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| CN (1) | CN114054870B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2070217U (en) * | 1990-05-21 | 1991-01-30 | 王金良 | Hand thread guide screwtap |
| DE102004041762A1 (en) * | 2004-08-28 | 2006-03-02 | Audi Ag | Tool to tap an inner thread within a deep core hole, in a workpiece, has a tap shaft extension inserted into the hole in front of the cutting head to give a self-centering action |
| CN103447562A (en) * | 2012-05-31 | 2013-12-18 | 徐州斯尔克差别化纤维科技有限公司 | Hole boring device |
| CN206839333U (en) * | 2017-05-31 | 2018-01-05 | 庄建春 | Tapping guider |
| CN109108401A (en) * | 2018-11-02 | 2019-01-01 | 常州市海力工具有限公司 | A kind of screw tap component with composite coating |
| CN110785263A (en) * | 2018-05-31 | 2020-02-11 | 株式会社京冈 | Sleeve part extracting clamp |
-
2021
- 2021-10-18 CN CN202111211011.0A patent/CN114054870B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2070217U (en) * | 1990-05-21 | 1991-01-30 | 王金良 | Hand thread guide screwtap |
| DE102004041762A1 (en) * | 2004-08-28 | 2006-03-02 | Audi Ag | Tool to tap an inner thread within a deep core hole, in a workpiece, has a tap shaft extension inserted into the hole in front of the cutting head to give a self-centering action |
| CN103447562A (en) * | 2012-05-31 | 2013-12-18 | 徐州斯尔克差别化纤维科技有限公司 | Hole boring device |
| CN206839333U (en) * | 2017-05-31 | 2018-01-05 | 庄建春 | Tapping guider |
| CN110785263A (en) * | 2018-05-31 | 2020-02-11 | 株式会社京冈 | Sleeve part extracting clamp |
| CN109108401A (en) * | 2018-11-02 | 2019-01-01 | 常州市海力工具有限公司 | A kind of screw tap component with composite coating |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114054870B (en) | 2023-02-03 |
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