CN217913016U

CN217913016U - Hollow drill bit convenient to adjust trompil degree of depth

Info

Publication number: CN217913016U
Application number: CN202221338572.7U
Authority: CN
Inventors: 吕亚琪
Original assignee: Changzhou Meihang Machinery Co ltd
Current assignee: Changzhou Meihang Machinery Co ltd
Priority date: 2022-05-31
Filing date: 2022-05-31
Publication date: 2022-11-29
Anticipated expiration: 2032-05-31

Abstract

The utility model discloses a hollow drill bit convenient to adjust trompil degree of depth, including drilling rod and drill bit. The utility model has the advantages that: when the drill bit is used, the fastening bolt is connected with the thread grooves II with different heights, the drilling depth can be required to be adjusted, the application range of the drill bit is expanded, and the plurality of chip removal grooves are wound on the outer wall of the drill bit, so that waste chips generated by milling can be cleaned, and the waste chips are prevented from being accumulated on the surface of a workpiece and influencing the milling precision; the utility model discloses a set up mounting groove, thread groove one, recess and hex bolts, be connected the upper end of mount pad through the cooperation between hex bolts and the thread groove one and the extension rod, can dismantle the drill bit, make things convenient for the later stage to change and maintain it, set up the location head through the outside at the drill bit in addition, can fix a position the drilling position of work piece when drilling, guarantee that the drilling in-process can not take place to translocate.

Description

Hollow drill bit convenient to adjust trompil degree of depth

Technical Field

The utility model relates to a hollow drill specifically is a hollow drill convenient to adjust trompil degree of depth belongs to drill bit technical field.

Background

The drill bit is a tool for drilling a through hole or a blind hole in a solid material and reaming the existing hole, and the commonly used drill bits mainly comprise a twist drill, a flat drill, a center drill, a deep hole drill and a trepanning drill, although the reaming drill and the countersink drill can not drill the solid material, the reaming drill and the countersink drill are also classified into the drill bits in a habitual way, and are often installed on machinery and a machine tool to produce and process a machined part, wherein the hollow drill bit is widely applied.

The existing part hollow drill bit has some problems when in use:

1) When the existing partial hollow drill bit is used for drilling, the opening depth of the existing partial hollow drill bit cannot be adjusted according to actual needs, and when holes with different depths are milled, a cutter is often required to be replaced, so that the existing partial hollow drill bit is troublesome to use;

2) The drill rod and the drill bit are mostly designed in an integrated mode in the existing partial hollow drill bit, when the drill bit or the drill rod is damaged, the drill bit or the drill rod cannot be replaced, and the use cost is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a core bit convenient to adjust the trompil degree of depth in order to solve above-mentioned at least one technical problem.

The utility model discloses a following technical scheme realizes above-mentioned purpose: a hollow drill bit convenient for adjusting the depth of a hole comprises

The drill rod is fixedly provided with a clamping groove on the lower side wall, a moving groove is fixedly formed in the upper side wall, and an extension rod is connected in the moving groove in a sliding manner;

the drill bit, its downside fixed welding has the mount pad, and mount pad fixed connection is at the upside of elongation pole, the inside of drill bit sets to the cavity state, and its tip fixedly connected with drill bit all around.

As a further aspect of the present invention: and a plurality of chip grooves are wound on the outer wall of the drill bit.

As a further aspect of the present invention: the inside intermediate position fixed mounting of drill bit has the connecting rod, and the one end of connecting rod extends to the outside of drill bit to there is the location head at its tip rigid coupling, be provided with the cutting teeth on the lateral wall of location head.

As a further aspect of the present invention: the inside of mount pad is provided with the mounting groove with extension rod matched with, and the outside lateral wall inside of mount pad is provided with four recesses around, and equal threaded connection has a hex bolts in every recess, every the hex bolts all can extend to in the mounting groove, the inside screw thread groove one with hex bolts matched with that evenly is provided with of the upper side pole body periphery of extension rod, the mount pad is connected with the upper end of extension rod through the mating reaction between hex bolts and screw thread groove one.

As a further aspect of the present invention: an accommodating groove is formed in the side wall of one side of the drill rod, a fastening bolt is connected to the accommodating groove in an internal thread mode, and a plurality of vertically arranged thread grooves II are uniformly formed in the side wall, close to the accommodating groove, of the extension rod.

As a further aspect of the present invention: and a rubber cushion is fixedly arranged on the inner bottom wall of the movable groove.

The utility model has the advantages that:

1) The utility model discloses a set up shifting chute, extension rod, fastening bolt and thread groove two, when using, through connecting fastening bolt and the thread groove two of different heights, can drill and require to adjust the drilling depth, enlarge its application range, and through winding on the outer wall of drill bit and being provided with many chip grooves, can clear up the sweeps that mill the production, avoid the sweeps to pile up on the work piece surface, cause the influence to milling precision;

2) The utility model discloses a set up mounting groove, thread groove one, recess and hex bolts, be connected the upper end of mount pad through the cooperation between hex bolts and the thread groove one and the extension rod, can dismantle the drill bit, make things convenient for the later stage to change and maintain it, set up the location head through the outside at the drill bit in addition, can fix a position the drilling position of work piece when drilling, guarantee that the drilling in-process can not take place to translocate.

Drawings

FIG. 1 is a schematic view of the three-dimensional structure of the hollow drill of the present invention;

FIG. 2 is a schematic view of the connection section structure of the extension rod of the hollow drill of the present invention;

fig. 3 is a schematic view of the connecting section structure of the extension rod and the tool bit of the present invention.

In the figure: 1. the drill rod comprises a drill rod body, 2, a mounting seat, 3, a chip groove, 4, a drill blade, 5, a connecting rod, 6, a positioning head, 7, a cutting tooth, 8, a drill bit, 9, a clamping groove, 10, a hexagon bolt, 11, a moving groove, 12, a through hole, 13, a holding groove, 14, a fastening bolt, 15, a thread groove II, 16, an extension rod, 17, a groove, 18 and a thread groove I.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example one

Referring to FIGS. 1 to 3, a hollow drill with adjustable drilling depth comprises

The drill rod 1 is fixedly provided with a clamping groove 9 on the lower side wall, a moving groove 11 is fixedly formed in the upper side wall, and an extension rod 16 is connected in the moving groove 11 in a sliding manner;

drill bit 8, its downside fixed welding has mount pad 2, and mount pad 2 fixed connection is at the upside of extension rod 16, the inside of drill bit 8 sets to the hollow state, and its tip fixedly connected with drill bit 4 all around.

The embodiment of the utility model provides an in, the winding is provided with many chip grooves 3 on the outer wall of drill bit 8, can clear up the sweeps that mill the production, avoids the sweeps to pile up at workpiece surface, causes the influence to milling the precision.

The embodiment of the utility model provides an in, holding tank 13 has been seted up in one side lateral wall of drilling rod 1, holding tank 13 female connection has fastening bolt 14, extension rod 16 evenly sets up the thread groove two 15 of a plurality of vertical range on being close to one side lateral wall of holding tank 13, when using, through being connected fastening bolt 14 with two 15 of the thread groove of co-altitude, can adjust drilling depth according to the drilling requirement, enlarges its application range.

In the embodiment of the present invention, the rubber cushion 12 is fixedly mounted on the inner bottom wall of the moving slot 11, so as to avoid the direct contact between the extension rod 16 and the slot wall of the moving slot 11 to cause abrasion, thereby prolonging the service life of the cutter.

Example two

The embodiment of the utility model provides an in, the inside intermediate position fixed mounting of drill bit 8 has connecting rod 5, and the one end of connecting rod 5 extends to the outside of drill bit 8 to there is location head 6 at its tip rigid coupling, be provided with cutting teeth 7 on the lateral wall of location head 6, can fix a position the drilling position of work piece when drilling, guarantee that the in-process of drilling can not take place to translocate.

The embodiment of the utility model provides an in, the inside of mount pad 2 is provided with the mounting groove with 16 matched with of extension rod, and the outside lateral wall inside of mount pad 2 is provided with four recesses 17 around, and equal threaded connection has hexagon bolt 10 in every recess 17, every hexagon bolt 10 all can extend to in the mounting groove, the inside screw thread groove 18 with hexagon bolt 10 matched with that evenly is provided with of upper side pole body periphery of extension rod 16, mount pad 2 is connected with the upper end of extension rod 16 through the cooperation between hexagon bolt 10 and screw thread groove 18, can dismantle drill bit 8, makes things convenient for the later stage to change it and maintain.

The working principle is as follows: when the hollow drill bit convenient for adjusting the drilling depth is used, the drill bit is firstly assembled, the mounting seat 2 is connected with the upper end of the extension rod 16 through the matching effect between the hexagon bolt 10 and the first thread groove 18, the drill bit 8 can be disassembled, then the assembled drill bit is connected with a machine tool through the clamping groove 9 and can be used, in the using process, the drilling position of a workpiece can be positioned through the arranged positioning head 6 during drilling, the translocation cannot occur in the drilling process, when the drilling depth needs to be adjusted, the fastening bolt 14 only needs to be connected with the second thread grooves 15 with different heights, the drilling depth can be adjusted according to the drilling requirement, the using range of the hollow drill bit is expanded, scraps generated in the milling process are timely cleaned through the scrap discharge grooves 3, the scraps can be effectively prevented from being accumulated on the surface of the workpiece, and the milling precision is influenced.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A hollow drill bit convenient for adjusting the depth of a hole is characterized by comprising

The drill rod (1) is fixedly provided with a clamping groove (9) on the lower side wall, a moving groove (11) is fixedly formed in the upper side wall, and an extension rod (16) is connected in the moving groove (11) in a sliding manner;

drill bit (8), its downside fixed welding has mount pad (2), and mount pad (2) fixed connection is in the upside of extension rod (16), the inside of drill bit (8) sets to hollow state, and its tip fixedly connected with drill bit (4) all around.

2. A core drill bit for facilitating adjustment of a depth of an opening as defined in claim 1, wherein: the outer wall of the drill bit (8) is wound with a plurality of chip grooves (3).

3. A core drill bit for facilitating adjustment of a depth of an opening as defined in claim 1, wherein: the inside intermediate position fixed mounting of drill bit (8) has connecting rod (5), and the one end of connecting rod (5) extends to the outside of drill bit (8) to there is location head (6) at its tip rigid coupling, be provided with cutting teeth (7) on the lateral wall of location head (6).

4. A core drill bit for facilitating adjustment of a depth of an opening as defined in claim 1, wherein: the utility model discloses a mounting structure, including mount pad (2), installation seat (2), equal threaded connection has hexagon bolt (10) in every recess (17), every hexagon bolt (10) all can extend to in the mounting groove, the inside mounting groove with extension rod (16) matched with that is provided with of outside lateral wall of mount pad (2) is inside to be provided with four recesses (17), and equal threaded connection has hexagon bolt (10) in every recess (17), every hexagon bolt (10), the upside pole body periphery inside of extension rod (16) evenly is provided with four screw grooves (18) with hexagon bolt (10) matched with, mount pad (2) are connected with the upper end of extension rod (16) through the mating reaction between hexagon bolt (10) and screw groove (18).

5. A core drill bit for facilitating adjustment of a depth of an opening as defined in claim 1, wherein: an accommodating groove (13) is formed in the side wall of one side of the drill rod (1), a fastening bolt (14) is connected to the inner thread of the accommodating groove (13), and a plurality of vertically arranged thread grooves II (15) are uniformly formed in the side wall, close to the accommodating groove (13), of the extension rod (16).

6. A core drill bit for facilitating adjustment of a depth of an opening as defined in claim 1, wherein: and a rubber cushion (12) is fixedly arranged on the inner bottom wall of the movable groove (11).