CN213888236U

CN213888236U - Processing hole chamfering device for drilling machine

Info

Publication number: CN213888236U
Application number: CN202023050373.XU
Authority: CN
Inventors: 康义; 刘华伟
Original assignee: Jiangxi Dongchen Machinery Manufacturing Co ltd
Current assignee: Jiangxi Dongchen Machinery Manufacturing Co ltd
Priority date: 2020-12-17
Filing date: 2020-12-17
Publication date: 2021-08-06
Anticipated expiration: 2030-12-17

Abstract

The utility model discloses a processing hole chamfering device for drilling machine belongs to the technical field of drilling machine, including mount pad, drill bit, fixed plate, chamfer sword and annular fixed block, the rotational center position of mount pad is fixed with the drill bit, install the fixed plate in the circumferencial direction of drill bit, the fixed plate is equipped with four, fixes each other through annular fixed block in the circumferencial direction of fixed plate, and the internally mounted of fixed plate has the chamfer sword; according to the device, after a drill machine punches the surface of a workpiece by using a drill bit, a driving assembly drives a driving gear to synchronously rotate, the driving gear is meshed with a transmission rack, so that a driving cavity can convert the rotating motion of the driving gear into the linear motion of the transmission rack, when the orifice of the workpiece needs to be chamfered, the transmission rack moves downwards to push a bottom structure to contact the orifice, and a chamfering tool is driven to chamfer the orifice through the rotating motion of a mounting seat; after the chamfering operation is finished, the chamfering tool returns to the original point under the reset action of the spring.

Description

Processing hole chamfering device for drilling machine

Technical Field

The utility model relates to a drilling machine technical field specifically is a drilling machine is with processing hole chamfer device.

Background

The drilling machine is a machine tool which mainly uses a drill to machine a hole on a workpiece. Typically the drill bit is rotated into a primary motion and the drill bit is moved axially into a feed motion. The drilling machine is simple in structure, relatively low in machining precision, capable of drilling through holes and blind holes, replacing special cutters, and capable of expanding, reaming or tapping and the like.

The existing drilling machine needs to replace a cutter to perform subsequent orifice chamfering operation after drilling operation, so that more processing time needs to be consumed, and a processing hole chamfering device for the drilling machine needs to be designed in order to effectively improve the processing efficiency.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a drilling machine is with processing hole chamfer device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a hole machining chamfering device for a drilling machine comprises a mounting seat, drill bits, fixing plates, four chamfering tools and annular fixing blocks, wherein the drill bits are fixed at the rotating center of the mounting seat, the fixing plates are mounted in the circumferential direction of the drill bits, the outer sides of the fixing plates are fixed with one another through the annular fixing blocks, and the chamfering tools are mounted inside the fixing plates; the utility model discloses a chamfer sword, including drill bit, fixed plate, telescopic link, spring, stopper, chamfer sword, spring, telescopic link, the bottom of drill bit is effective screw thread district, and the top in screw thread district evenly is equipped with four mounting grooves along the circumferencial direction, the end fixing of fixed plate is in the mounting groove, the inside of fixed plate is equipped with the spout along vertical direction, the inside of spout is equipped with the spring, the both ends of spring are fixed inside the spout through the inside stopper of fixed plate, the chamfer sword includes blade and telescopic link, the bottom at the telescopic link is installed to the blade, the telescopic link passes through sliding connection's mode and installs in the inside of spout and spring, and is equipped with annular boss on the circumferencial direction of telescopic link, and annular boss is located the top of spring.

As a further aspect of the present invention: the inside drive chamber that is equipped with of mount pad at telescopic link top, the drive intracavity rotates and is connected with drive gear, drive gear's rotation axis links to each other with outside drive assembly, and drive gear's outside meshing has the driving rack, the driving rack forms sliding connection with the inner wall in drive chamber.

As a further aspect of the present invention: the blade body is of a triangular structure with an inclination angle of an angle, one right-angle side of the triangular structure is in sliding contact with the surface of the drill bit, and the other side of the triangular structure is connected with the telescopic rod.

As a further aspect of the present invention: the top and the bottom of fixed plate are equipped with the spacing groove, annular fixed block is installed at the spacing inslot portion.

As a further aspect of the present invention: the inner wall of the fixing plate at the outer side of the limiting groove is provided with a threaded hole, a jackscrew is installed in the threaded hole, and a jackscrew groove is formed in the annular fixing block corresponding to the jackscrew.

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

according to the device, after a drill machine punches the surface of a workpiece by using a drill bit, a driving assembly drives a driving gear to synchronously rotate, the driving gear is meshed with a transmission rack, so that a driving cavity can convert the rotating motion of the driving gear into the linear motion of the transmission rack, when the orifice of the workpiece needs to be chamfered, the transmission rack moves downwards to push a bottom structure to contact the orifice, and a chamfering tool is driven to chamfer the orifice through the rotating motion of a mounting seat; after the chamfering operation is finished, the transmission rack goes upward, and the chamfering tool returns to the original point under the reset action of the spring.

Drawings

Fig. 1 is a schematic view of a combined structure of a hole chamfering device for a drilling machine.

Fig. 2 is a partial structural schematic view of the processing hole chamfering device shown in fig. 1 for a drilling machine.

FIG. 3 is a schematic structural diagram of an annular fixing block in a hole chamfering device for a drilling machine.

In the figure: 1-mounting seat, 11-driving gear, 12-driving rack, 2-drill bit, 21-clamping groove, 3-fixing plate, 31-sliding groove, 32-limiting groove, 33-limiting block, 4-chamfering cutter, 41-cutter body, 42-telescopic rod, 5-annular fixing block, 51-jackscrew groove, 6-jackscrew and 7-spring.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

Referring to fig. 1 to 3, in an embodiment of the present invention, a hole chamfering device for a drilling machine includes a mounting base 1, a drill bit 2, a fixing plate 3, four chamfering tools 4, and an annular fixing block 5, wherein the drill bit 2 is fixed at a rotation center position of the mounting base 1, the fixing plate 3 is installed on the drill bit 2 in a circumferential direction, the fixing plates 3 are four, the outer sides of the fixing plates 3 are fixed to each other through the annular fixing block 5, and the chamfering tools 4 are installed inside the fixing plates 3; the bottom of drill bit 2 is effective screw thread district, and the top in screw thread district evenly is equipped with four mounting grooves along the circumferencial direction, the end fixing of fixed plate 3 is in the mounting groove, the inside of fixed plate 3 is equipped with spout 31 along vertical direction, the inside of spout 31 is equipped with spring 7, the both ends of spring 7 are fixed inside spout 31 through the stopper 33 of fixed plate 3 inside, chamfer sword 4 includes blade 41 and telescopic link 42, blade 41 installs the bottom at telescopic link 42, telescopic link 42 installs the inside at spout 31 and spring 7 through sliding connection's mode, and is equipped with annular boss on telescopic link 42's the circumferencial direction, and annular boss is located spring 7's top.

In this embodiment, this device utilizes drill bit 2 to punch the back to the workpiece surface at the drilling machine, drives the inside driver part of mount pad 1 down through outside drive assembly to promote telescopic link 42 along vertical direction downstream, compress spring 7, thereby make the blade 41 of the chamfer sword 4 of bottom follow the downstream contact hole in drill bit 2 surface and follow, then drive chamfer sword 4 through the rotary motion of mount pad 1 and carry out the chamfer to the mouth.

Referring to fig. 1, as a preferred embodiment of the present invention, a driving cavity is disposed inside the mounting base 1 at the top of the telescopic rod 42, a driving gear 11 is rotatably connected in the driving cavity, a rotating shaft of the driving gear 11 is connected to an external driving component, a driving rack 12 is engaged with the outer side of the driving gear 11, and the driving rack 12 and the inner wall of the driving cavity form a sliding connection.

In the embodiment, the driving assembly drives the driving gear 11 to synchronously rotate, and the driving gear 11 is meshed with the transmission rack 12, so that the driving cavity can convert the rotating motion of the driving gear 11 into the linear motion of the transmission rack 12, when the orifice of a workpiece needs to be chamfered, the transmission rack 12 descends to push the bottom structure to contact the orifice, and the chamfering tool 4 is driven to chamfer the orifice through the rotating motion of the mounting seat 1; after the chamfering operation is finished, the transmission rack 12 moves upwards, and the chamfering cutter 4 returns to the original point under the reset action of the spring 7.

Referring to fig. 1, as another preferred embodiment of the present invention, the blade 41 is a triangular structure with an inclination angle of 45 °, one of the right-angle sides of the triangular structure forms a sliding contact with the surface of the drill 2, and the other side is connected to the telescopic rod 42.

In this embodiment, the triangular structure of the blade 41 has 45 ° inclined sides contacting the hole, and the chamfering tool 4 is driven by the rotation of the mounting base 1 to chamfer the hole.

Referring to fig. 2, as another preferred embodiment of the present invention, the top and the bottom of the fixing plate 3 are provided with a limiting groove 32, and the annular fixing block 5 is installed inside the limiting groove 32.

In this embodiment, the annular fixing block 5 is installed inside the limiting groove 32 to limit and fix the fixing plates 3 uniformly distributed in the circumferential direction of the drill bit 2.

Referring to fig. 2 to 3, as another preferred embodiment of the present invention, a threaded hole is formed in the inner wall of the fixing plate 3 outside the limiting groove 32, a jackscrew 6 is installed in the threaded hole, and a jackscrew groove 51 is formed in the annular fixing block 5 corresponding to the jackscrew 6.

In the embodiment, the annular fixing block 5 is used for installing and fixing the annular fixing block 5 and the fixing plate 3 by matching the jackscrew 6 with the jackscrew groove 51, so that the fixing plate 3 is prevented from being structurally loosened.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A processing hole chamfering device for a drilling machine comprises a mounting seat (1), drill bits (2), fixing plates (3), chamfering tools (4) and annular fixing blocks (5), and is characterized in that the drill bits (2) are fixed at the rotating center of the mounting seat (1), the fixing plates (3) are installed on the drill bits (2) in the circumferential direction, the number of the fixing plates (3) is four, the outer sides of the fixing plates (3) are fixed with each other through the annular fixing blocks (5), and the chamfering tools (4) are installed inside the fixing plates (3); the bottom of drill bit (2) is effective screw thread district, and the top in screw thread district evenly is equipped with four mounting grooves along the circumferencial direction, the end fixing of fixed plate (3) is in the mounting groove, the inside of fixed plate (3) is equipped with spout (31) along vertical direction, the inside of spout (31) is equipped with spring (7), the both ends of spring (7) are fixed inside spout (31) through stopper (33) of fixed plate (3) inside, chamfer sword (4) are including blade (41) and telescopic link (42), the bottom at telescopic link (42) is installed to blade (41), telescopic link (42) are installed in the inside of spout (31) and spring (7) through sliding connection's mode, and are equipped with annular boss on the circumferencial direction of telescopic link (42), and annular boss is located the top of spring (7).

2. The chamfering device for the machining hole of the drilling machine as claimed in claim 1, wherein a driving cavity is arranged inside the mounting seat (1) at the top of the telescopic rod (42), a driving gear (11) is rotatably connected in the driving cavity, a rotating shaft of the driving gear (11) is connected with an external driving component, a transmission rack (12) is meshed on the outer side of the driving gear (11), and the transmission rack (12) is in sliding connection with the inner wall of the driving cavity.

3. The chamfering device for the processed hole of the drilling machine as claimed in claim 2, wherein the blade (41) is a triangular structure with an inclination angle of 45 °, one of the right-angled sides of the triangular structure is in sliding contact with the surface of the drill bit (2), and the other side of the triangular structure is connected with the telescopic rod (42).

4. The chamfering device for the processed hole of the drilling machine according to claim 3, wherein the top and the bottom of the fixing plate (3) are provided with limiting grooves (32), and the annular fixing block (5) is installed inside the limiting grooves (32).

5. The chamfering device for the machining hole of the drilling machine according to claim 4, wherein a threaded hole is formed in the inner wall of the fixing plate (3) on the outer side of the limiting groove (32), a jackscrew (6) is installed in the threaded hole, and a jackscrew groove (51) is formed in the annular fixing block (5) corresponding to the jackscrew (6).