CN214489131U

CN214489131U - Composite screw tap

Info

Publication number: CN214489131U
Application number: CN202120725178.8U
Authority: CN
Inventors: 徐红星
Original assignee: Danyang Junnaite Cutting Tools Co ltd
Current assignee: Danyang Junnaite Cutting Tools Co ltd
Priority date: 2021-04-09
Filing date: 2021-04-09
Publication date: 2021-10-26
Anticipated expiration: 2031-04-09

Abstract

The utility model discloses a composite screw tap, which belongs to the screw tap field and comprises a connecting rod, wherein the bottom end of the connecting rod is provided with a taper shank, the outer side wall of the taper shank is symmetrically provided with two groups of vertical grooves, the inner side wall of each vertical groove is equidistantly provided with a plurality of groups of adjusting grooves, the surface of the taper shank is movably sleeved with a chamfering mechanism, the bottom end of the taper shank is provided with a cone, the surface of the cone is provided with a plurality of groups of left cutters, the bottom end of the cone is provided with a cone tip, the outer side wall of the cone and the outer side wall of the cone tip are equidistantly provided with four groups of chip grooves, the chamfering mechanism comprises a limiting ring, the inner side wall of the limiting ring is symmetrically provided with two groups of sliding plates, one side of the sliding plate, which is far away from the inner side wall of the limiting ring, is provided with a limiting groove, and an adjusting screw is movably arranged in the limiting groove; this practicality can accomplish tapping and chamfer processing in one process to need not the tool changing, the higher and simple structure of production efficiency can adjust the size of chamfer, be convenient for process the not screw hole of equidimension.

Description

Composite screw tap

Technical Field

The utility model relates to a screw tap field especially relates to compound screw tap.

Background

A tap is a tool for machining an internal thread, and is classified into a spiral tap, an edge inclination tap, a straight tap, a pipe tap, and the like according to the shape, and a hand tap and a machine tap according to the use environment.

When the existing composite screw tap is produced in a single piece or in a small batch, chamfering and tapping are often performed manually, the labor intensity is high, and the product quality is difficult to ensure; in mass production, although motorized chamfering tapping can be adopted, two processes or two processes of one process are required to be finished, a special machine tool is required, and equipment investment is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects in the prior art and providing the composite screw tap.

In order to achieve the purpose, the following technical scheme is adopted in the utility model:

composite tap, including the connecting rod, the connecting rod bottom is provided with the taper shank, two sets of perpendicular grooves have been seted up to taper shank lateral wall symmetry, erect inslot lateral wall equidistance and seted up a plurality of groups adjustment tank, taper shank surface activity cover is equipped with chamfer mechanism, the taper shank bottom is provided with the cone, a plurality of groups left side sword has been seted up on the cone surface, the cone bottom is provided with the awl point, four group's chip pockets have been seted up to equal distance of cone lateral wall and awl point lateral wall.

Further, chamfering mechanism includes the spacing ring, the spacing ring inside wall symmetry is provided with two sets of slides, the slide is kept away from spacing ring inside wall one side and is seted up the spacing groove, the activity of spacing inslot portion is provided with adjusting screw, spacing ring one side is close to the border position and has seted up the spread groove, taper shank surface winding is provided with the spring.

Further, the spring is kept away from spacing ring one end swing joint and is had the slurcam, the slurcam lateral wall runs through near the intermediate position and sets up flutedly, four groups of sliders that agree with mutually with the chip pocket are seted up to the recess inside wall equidistance, the slurcam is kept away from spring one side equidistance and is seted up four groups of right-handed cutters.

Furthermore, the thread groove that meshes with adjusting screw mutually is all seted up to spacing inslot lateral wall and adjustment tank inside wall, adjusting screw one end is passed the spacing groove activity and is set up inside the adjustment tank, the spacing ring passes through adjusting screw, the activity of spacing groove cooperation adjustment tank and sets up at the taper shank lateral wall.

Furthermore, the pushing plate slides left and right along the cone through the groove, the inner side wall of the groove is tightly attached to the outer side wall of the cone, and the right cutter slides along the chip groove through the matching of the pushing plate and the sliding block.

Further, the spring is kept away from the activity of slushing plate one end and is set up inside the spread groove, the spacing ring passes through the activity of spring cooperation spread groove and sets up at one side slushing plate, and the awl point is the setting of round platform type.

Compared with the prior art, the beneficial effects of the utility model reside in that:

1. the composite screw tap is rotated to normally tap a workpiece, after a right cutter touches the end face of the workpiece, a pushing plate moves backwards along a chip groove through a groove matching sliding block and compresses a spring, meanwhile, the rear cutter face of the right cutter slips on the working end face, chamfering cutting is not carried out, after tapping is in place, the right cutter is compressed to a limit position, then the composite screw tap reversely returns, the right cutter carries out chamfering at the moment, when the composite screw tap reversely returns, the chip groove matching sliding block of the screw tap drives the right cutter to rotate, and the right cutter moves downwards under the action of spring tension to start chamfering cutting, when the spring returns to a free state, chamfering cutting is stopped, the composite screw tap continuously returns to an original position, tapping and chamfering processing can be completed in one process, tool changing is not needed, production efficiency is high, and the structure is simple.

2. Take off adjusting screw, then pass through the spacing ring through the slide along erecting the groove horizontal slip, change the axial position of spacing ring on the taper shank, then pass the spacing groove setting with adjusting screw one end inside the adjustment tank, it is spacing to carry out the spacing ring, can change the distance between spacing ring and the slurcam through above-mentioned operation, thereby can change the extension range that sets up spacing ring one side spring through the spread groove, can be in order to change the elasticity size of spring at the during operation, thereby can adjust the size of chamfer, be convenient for process not screw hole of equidimension.

In conclusion, the device can solve the existing problems.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention.

Fig. 1 is a schematic view of the overall structure of a composite tap according to the present invention;

FIG. 2 is a schematic view of the structure of the cone and the taper shank of the composite tap according to the present invention;

fig. 3 is a schematic structural view of a stop collar of the composite tap according to the present invention;

fig. 4 is a schematic structural view of the push plate and the right-hand cutter of the composite tap according to the present invention.

In the figure: 1. a taper shank; 2. a taper shank; 3. a vertical slot; 4. an adjustment groove; 5. a cone; 6. a conical tip; 7. a chip pocket; 8. a left cutter; 9. a limiting ring; 10. a slide plate; 11. a limiting groove; 12. an adjusting screw; 13. connecting grooves; 14. a push plate; 15. a groove; 16. a right cutter; 17. a slider; 18. a spring; 19. and a chamfering mechanism.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.

Example 1

Referring to fig. 1, the present invention provides a technical solution: composite tap, including connecting rod 1, 1 bottom of connecting rod is provided with

taper shank

2, and 2 lateral walls of taper shank symmetry have been seted up two sets of perpendicular grooves 3, erect 3 inside wall equidistance in groove and seted up a plurality of

groups adjustment tank

4, and 2 surperficial movable sleeves of taper shank are equipped with

chamfer mechanism

19, and 2 bottoms of taper shank are provided with cone 5, and a plurality of groups left knife 8 have been seted up on 5 surfaces of cone, and 5 bottoms of cone are provided with awl point 6, and four group's chip pockets 7 have been seted up to 5 lateral walls of cone and 6 equal equidistance of awl point.

Referring to fig. 3-4, the chamfering mechanism 19 includes a limiting ring 9, two sets of sliding plates 10 are symmetrically disposed on the inner side wall of the limiting ring 9, a limiting groove 11 is disposed on one side of the sliding plate 10 away from the inner side wall of the limiting ring 9, an adjusting screw 12 is movably disposed inside the limiting groove 11, a connecting groove 13 is disposed on one side of the limiting ring 9 close to the edge, a spring 18 is wound on the surface of the taper shank 2, one end of the spring 18 away from the limiting ring 9 is movably connected with a pushing plate 14, a groove 15 is formed through the side wall of the pushing plate 14 close to the middle position, four sets of sliding blocks 17 engaged with the chip pocket 7 are equidistantly disposed on the inner side wall of the groove 15, and four sets of right cutters 16 are equidistantly disposed on one side of the pushing plate 14 away from the spring 18.

Specifically, when the compound screw tap is used, the compound screw tap is connected with a machine tool through a connecting rod 1, then a cone 5 of the compound screw tap is rotated anticlockwise, a cone tip 6 is matched with a left cutter 8 to perform normal tapping on a workpiece, after a right cutter 16 touches the end face of the workpiece, a push plate 14 is matched with a slider 17 through a groove 15 to move backwards along a chip containing groove 7 and compress a spring 18, meanwhile, the back cutter face of the right cutter 16 slips on the working end face and does not perform chamfer cutting, after the tapping is in place, the right cutter 16 is compressed to a limit position, then the compound screw tap is reversely returned, at the moment, the right cutter 16 performs chamfer cutting, when the compound screw tap is reversely returned, the chip containing groove 7 is matched with the slider 17 to drive the right cutter 16 to rotate, and downwards move under the tension of the spring 18 to start chamfer cutting, when the spring 18 returns to a free state, the chamfer cutting is stopped, and the compound screw tap is continuously returned to the original position, therefore, tapping and chamfering can be completed in one process without changing tools, the production efficiency is high, and the structure is simple.

Example 2

Referring to fig. 3-4, the present invention provides a technical solution: compound screw tap, still include chamfer mechanism 19, chamfer mechanism 19 includes

spacing ring

9, 9 inside wall symmetries of spacing ring are provided with two sets of slides 10, slide 10 keeps away from 9 inside wall one sides of spacing ring and has seted up spacing groove 11, the inside activity of spacing groove 11 is provided with adjusting

screw

12, 9 one side of spacing ring is close to border position and has seted up spread groove 13, the winding of taper shank 2 surface is provided with spring 18, spring 18 keeps away from 9 one end swing joint of spacing ring has slurcam 14, slurcam 14 lateral wall is close to the intermediate position and runs through and has seted up recess 15, recess 15 inside wall equidistance is seted up four groups and is seted up the slider 17 that agree with mutually with chip pocket 7, slurcam 14 keeps away from spring 18 one side equidistance and has seted up four groups of right-handed cutters 16.

Referring to fig. 1-2, the inner side wall of the limiting groove 11 and the inner side wall of the adjusting groove 4 are both provided with a thread groove engaged with the adjusting screw 12, one end of the adjusting screw 12 passes through the limiting groove 11 and is movably arranged inside the adjusting groove 4, the limiting ring 9 is movably arranged on the outer side wall of the taper shank 2 by matching the adjusting groove 11 with the adjusting groove 4, the pushing plate 14 slides left and right along the taper body 5 by the groove 15, the inner side wall of the groove 15 is tightly attached to the outer side wall of the taper body 5, the right cutter 16 slides along the chip groove 7 by matching the pushing plate 14 with the slider 17, one end of the spring 18 far away from the pushing plate 14 is movably arranged inside the connecting groove 13, the limiting ring 9 is movably arranged on the pushing plate 14 at one side by matching the connecting groove 13 with the spring 18, and the taper tip 6 is arranged in a round table shape.

When processing not the screw hole of equidimension, take off adjusting screw 12, then pass through slide 10 with spacing ring 9 and slide along erecting groove 3 from side to side, change the axial position of spacing ring 9 on taper shank 2, then pass spacing groove 11 with adjusting screw 12 one end and set up inside adjustment tank 4, spacing ring 9, can change the distance between spacing ring 9 and the slurcam 14 through above-mentioned operation, thereby can change the extension range that sets up spacing ring 9 one side spring 18 through spread groove 13, can be with the elasticity size of change spring 18 during operation, thereby can adjust the size of chamfer.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be covered by the scope of the present invention by the technical solutions and the practical concepts equivalent to or modified from the technical solutions and the practical concepts of the present invention.

Claims

1. Composite tap, including connecting rod (1), its characterized in that, connecting rod (1) bottom is provided with taper shank (2), two sets of perpendicular groove (3) have been seted up to taper shank (2) lateral wall symmetry, erect groove (3) inside wall equidistance and seted up a plurality of groups adjustment tank (4), taper shank (2) surface activity cover is equipped with chamfer mechanism (19), taper shank (2) bottom is provided with cone (5), a plurality of groups left-hand knife (8) have been seted up on cone (5) surface, cone (5) bottom is provided with awl point (6), four group chip pockets (7) have been seted up to cone (5) lateral wall and the impartial distance of awl point (6) lateral wall.

2. The composite tap according to claim 1, wherein the chamfering mechanism (19) comprises a limiting ring (9), two sets of sliding plates (10) are symmetrically arranged on the inner side wall of the limiting ring (9), one side of each sliding plate (10) far away from the inner side wall of the limiting ring (9) is provided with a limiting groove (11), an adjusting screw (12) is movably arranged in each limiting groove (11), one side of each limiting ring (9) close to the edge is provided with a connecting groove (13), and a spring (18) is wound on the surface of the taper shank (2).

3. The combined tap according to claim 2, wherein one end of the spring (18) far away from the limiting ring (9) is movably connected with a pushing plate (14), a groove (15) is formed in the side wall of the pushing plate (14) close to the middle of the side wall, four sliding blocks (17) matched with the chip flutes (7) are arranged on the inner side wall of the groove (15) at equal intervals, and four right cutters (16) are arranged on one side of the pushing plate (14) far away from the spring (18) at equal intervals.

4. The composite tap according to claim 2, wherein the inner side wall of the limiting groove (11) and the inner side wall of the adjusting groove (4) are both provided with thread grooves engaged with the adjusting screws (12), one end of each adjusting screw (12) penetrates through the limiting groove (11) and is movably arranged inside the adjusting groove (4), and the limiting ring (9) is movably arranged on the outer side wall of the taper shank (2) through the adjusting screws (12) and the limiting groove (11) in cooperation with the adjusting groove (4).

5. A composite tap according to claim 3, wherein the push plate (14) slides left and right along the cone (5) through a groove (15), the inner side wall of the groove (15) is tightly attached to the outer side wall of the cone (5), and the right cutter (16) slides along the chip groove (7) through the push plate (14) and a slide block (17).

6. The combined tap according to claim 2, wherein one end of the spring (18) far away from the pushing plate (14) is movably arranged inside the connecting groove (13), the limiting ring (9) is movably arranged on the pushing plate (14) on one side through the spring (18) matched with the connecting groove (13), and the cone tip (6) is arranged in a circular truncated cone shape.