CN213317894U

CN213317894U - Drill bit for deburring

Info

Publication number: CN213317894U
Application number: CN202021848145.4U
Authority: CN
Inventors: 赵冉; 程兆刚; 张翼飞; 尹玉军; 付佳; 赵芳; 张淑琴; 王凌英; 曹洪娜; 赫万恒
Original assignee: Army Engineering University of PLA
Current assignee: Army Engineering University of PLA
Priority date: 2020-08-28
Filing date: 2020-08-28
Publication date: 2021-06-01
Anticipated expiration: 2030-08-28

Abstract

The utility model provides a drill bit for deburring belongs to drill bit technical field, including the drilling rod, still include connecting block, tool bit and actuating mechanism. The connecting block is fixedly connected with one end of the drill rod. The quantity of tool bit is two, and two tool bits are arranged and the symmetry is located the both sides of drilling rod axial lead along the circumference of drilling rod, tool bit and connecting block sliding connection and the axial lead of slip direction perpendicular to drilling rod, and the bottom of tool bit is equipped with the cutting edge that sets up along its slip direction, and two cutting edges set up relatively, and two cutting edges are located the collinear that passes the drilling rod axial lead, and when the drilling rod was rotatory, the cutting edge was used for excising the burr. The driving mechanism is used for driving the two cutter heads to synchronously and reversely slide. The utility model provides a drill bit for deburring removes the excision burr with two rotatory blades, owing to do not remove the grinding burr with the emery wheel, so solved the problem that produces the dust when removing the burr with the emery wheel grinding.

Description

Drill bit for deburring

Technical Field

The utility model belongs to the technical field of the drill bit, more specifically say, relate to a drill bit for deburring.

Background

After mechanical parts punch, burrs are generated on the punched surface, the burrs are generally removed through a grinding wheel, and dust and environment pollution are generated when the grinding wheel grinds the burrs.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a drill bit for deburring aims at solving the problem that produces the dust when using the emery wheel grinding deburring.

In order to achieve the above object, the utility model adopts the following technical scheme: the drill bit for removing the burrs comprises a drill rod, a connecting block, a cutter head and a driving mechanism. The connecting block is fixedly connected with one end of the drill rod. The quantity of tool bit is two, two the tool bit is followed the circumference of drilling rod is arranged and the symmetry is located the both sides of drilling rod axial lead, the tool bit with connecting block sliding connection and slip direction perpendicular to the axial lead of drilling rod, the bottom of tool bit is equipped with the cutting edge that sets up along its slip direction, two the cutting edge sets up relatively, two the cutting edge is located and passes on the same straight line of drilling rod axial lead, when the drilling rod is rotatory, the cutting edge is used for excising the burr. The driving mechanism is used for driving the two cutter heads to synchronously and reversely slide.

As another embodiment of this application, the connecting block is seted up two and is on a parallel with the sliding hole of tool bit slip direction, the tool bit sets firmly and slides and wear to locate the slide bar in the sliding hole.

As another embodiment of the application, the two slide holes are symmetrically arranged on two sides of the drill rod.

As another embodiment of this application, two the breach has all been seted up to the relative one end of tool bit, the connecting block is located two between the breach.

As another embodiment of the application, when the two cutting edges synchronously slide inwards and intersect, the connecting block is used for limiting the end surfaces of the two notches.

As another embodiment of the present application, the driving mechanism includes a slip ring, a connecting rod, and a fastening screw. The slip ring is sleeved outside the drill rod in a sliding manner, and a threaded hole is formed in the slip ring. The number of connecting rods is two, two the connecting rod is located two respectively the outside of tool bit, the connecting rod slope sets up and two the inclination of connecting rod is opposite, the upper and lower both ends of connecting rod respectively with the sliding ring with the place side the tool bit is articulated. And the threaded end of the fastening screw is in threaded connection with the threaded hole, and the end surface of the threaded end of the fastening screw is used for pressing the drill rod.

As another embodiment of this application, the articulated shaft is all worn to be equipped with at the both ends of connecting rod, the one end of articulated shaft with the tool bit fixed connection of sliding ring or place side, the other end pierces through connecting rod and tip have radial convex first spacing portion.

As another embodiment of the present application, the drill rod has a radially protruding second position-limiting portion, the second position-limiting portion is located between the connecting block and the sliding ring, and the second position-limiting portion is used for limiting the sliding ring to prevent the sliding rod from sliding out of the sliding hole.

As another embodiment of the application, the slip ring is provided with a boss protruding in the radial direction, and the outer side face of the boss is used for opening the threaded hole.

As another embodiment of the present application, the tool bit has a distal end face comprising a cutting edge and being parallel to the end face of the drill rod.

The utility model provides a drill bit for deburring's beneficial effect lies in: compared with the prior art, the utility model is used for the drill bit of deburring, when the deburring, can connect the drilling rod in the pistol drill, start the pistol drill after, remove the excision burr with two rotatory blades, slide through two tool bits of actuating mechanism drive, can adjust the distance between two cutting edges, can adjust according to actual need like this, so the actual application scope of this drill bit is very wide. Because the grinding burr is not removed by using a grinding wheel, the problem of dust generation when the burr is removed by grinding with the grinding wheel is solved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic axial view of a drill for deburring according to an embodiment of the present invention;

fig. 2 is a schematic view of the axial measurement structure after the cutter head and the hinge shaft in the drill bit for removing burrs are fixed, provided by the embodiment of the present invention.

In the figure: 1. a drill stem; 11. a second limiting part; 2. connecting blocks; 21. a slide hole; 3. a cutter head; 31. a blade; 32. a slide bar; 33. a notch; 4. a drive mechanism; 41. a slip ring; 411. a boss; 42. a connecting rod; 43. fastening screws; 5. hinging a shaft; 51. a first limiting part.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1, a drill for removing burrs according to the present invention will be described. The drill bit for removing burrs comprises a drill rod 1, a connecting block 2, a tool bit 3 and a driving mechanism 4. The connecting block 2 is fixedly connected with one end of the drill rod 1. The quantity of tool bit 3 is two, and two tool bits 3 arrange and the symmetry locates the both sides of drilling rod 1 axial lead along the circumference of drilling rod 1, and tool bit 3 and connecting block 2 sliding connection and the axial lead of slip direction perpendicular to drilling rod 1, and the bottom of tool bit 3 is equipped with the cutting edge 31 that sets up along its slip direction, and two cutting edges 31 set up relatively, and two cutting edges 31 are located the same straight line that passes 1 axial lead of drilling rod, and when drilling rod 1 rotated, cutting edge 31 was used for excising the burr. The driving mechanism 4 is used for driving the two cutter heads 3 to synchronously slide in opposite directions.

The utility model provides a drill bit for deburring compares with prior art, during the deburring, can connect drilling rod 1 in the pistol drill, starts the pistol drill back, removes the excision burr with two rotatory sword edges 31, slides through two tool bits 3 of actuating mechanism 4 drive, can adjust the distance between two sword edges 31, can adjust according to actual need like this, so the practical application scope of this drill bit is very wide. Because the grinding burr is not removed by using a grinding wheel, the problem of dust generation when the burr is removed by grinding with the grinding wheel is solved.

As a specific implementation manner of the drill bit for removing burrs provided in the present invention, please refer to fig. 1 to 2, in order to realize the sliding connection between the tool bit 3 and the connecting block 2, the connecting block 2 is provided with two sliding holes 21 parallel to the sliding direction of the tool bit 3, and the tool bit 3 is fixedly provided with a sliding rod 32 slidably disposed in the sliding holes 21.

As a specific embodiment of the drill for removing burrs provided in the present invention, please refer to fig. 1, two sliding holes 21 are symmetrically disposed on two sides of the drill rod 1. This facilitates the synchronous counter-sliding of the two slide bars 32, i.e. of the two cutter heads 3.

As a specific embodiment of the drill bit for removing burrs provided in the present invention, please refer to fig. 1 to 2, in order to reduce the overall volume of the drill bit, a gap 33 is provided at one end of two opposite tool bits 3, and the connecting block 2 is located between two gaps 33.

As a specific embodiment of the drill for removing burrs provided in the present invention, please refer to fig. 1, if the two cutting edges 31 continuously slide in the same phase after intersecting, the two cutting edges 31 may be damaged each other, so when the two cutting edges 31 synchronously slide in the same direction, the connecting block 2 is used to limit the end surface of the two notches 33.

As a specific embodiment of the drill for removing burrs provided in the present invention, referring to fig. 1, the driving mechanism 4 includes a slip ring 41, a connecting rod 42, and a fastening screw 43. The slip ring 41 is slidably sleeved outside the drill rod 1, and the slip ring 41 is provided with a threaded hole. The number of connecting rod 42 is two, and two connecting rods 42 are located the outside of two tool bits 3 respectively, and connecting rod 42 slope sets up and two connecting rod 42's inclination is opposite, and the upper and lower both ends of connecting rod 42 are articulated with the tool bit 3 of sliding ring 41 and place side respectively. The threaded end of the fastening screw 43 is in threaded connection with the threaded hole, and the end face of the threaded end of the fastening screw 43 is used for pressing the drill rod 1. The sliding up and down of the slip ring 41 can change the inclination angle of the connecting rod 42, thereby realizing the sliding of the cutter head 3. And two connecting rods 42 are hinged on the sliding ring 41, and the inclination angles of the two connecting rods 42 are opposite, so that the sliding ring 41 can drive the two cutter heads 3 to synchronously and reversely slide through the two connecting rods 42. When the cutter head 3 slides in place, the threaded end of the fastening screw 43 presses the drill rod 1, preventing the slip ring 41 from sliding further.

As a specific implementation manner of the drill bit for removing burrs, please refer to fig. 1 to 2, in order to realize that the upper and lower both ends of connecting rod 42 are articulated with the tool bit 3 of sliding ring 41 and place side respectively, articulated shaft 5 is all worn to be equipped with at the both ends of connecting rod 42, the one end of articulated shaft 5 and the tool bit 3 fixed connection of sliding ring 41 or place side, the other end pierces through connecting rod 42 and the tip has radial convex first spacing portion 51.

As a specific embodiment of the drill for removing burrs provided in the present invention, referring to fig. 1, if the slide rod 32 slides out of the slide hole 21, the slide rod 32 must be installed back into the slide hole 21 again, in order to avoid this situation, the drill rod 1 has a second limiting portion 11 protruding radially, the second limiting portion 11 is located between the connecting block 2 and the slide ring 41, the second limiting portion 11 is used for limiting the slide ring 41 to prevent the slide rod 32 from sliding out of the slide hole 21,

as the utility model provides a concrete implementation mode for a drill bit for deburring please refer to fig. 1, sliding ring 41 has radial convex boss 411, and boss 411's lateral surface is used for seting up the screw hole, and it is more difficult to process the screw hole on the ring, and boss 411's lateral surface processing screw hole is then fairly simple, and boss 411's setting can also increase the degree of depth of screw hole moreover to make fastening screw 43 more reliable to the fastening of drilling rod 1.

As a specific embodiment of the drill bit for removing burrs provided in the present invention, please refer to fig. 1 to 2, the tool bit 3 has a distal end surface that includes the cutting edge 31 and is parallel to the end surface of the drill rod 1, and the distal end surface of the tool bit 3 is attached to the surface of the workpiece, so that the cutting edge 31 is removed by moving the drill bit, and the cutting edge 31 cannot damage the surface of the workpiece due to the limitation of the distal end surface of the tool bit 3.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A drill bit for deburring, including the drilling rod, its characterized in that still includes:

the connecting block is fixedly connected with one end of the drill rod;

the two cutter heads are arranged along the circumferential direction of the drill rod and symmetrically arranged on two sides of the axial lead of the drill rod, the cutter heads are connected with the connecting block in a sliding mode, the sliding direction of the cutter heads is perpendicular to the axial lead of the drill rod, the bottom end of each cutter head is provided with a cutting edge arranged along the sliding direction of the cutter head, the two cutting edges are arranged oppositely and are positioned on the same straight line penetrating through the axial lead of the drill rod, and when the drill rod rotates, the cutting edges are used for cutting burrs; and

and the driving mechanism is used for driving the two cutter heads to synchronously and reversely slide.

2. The drill bit for removing burrs of claim 1, wherein the connecting block has two slide holes parallel to the sliding direction of the cutter head, and the cutter head has a slide rod slidably inserted into the slide holes.

3. The drill bit for deburring as claimed in claim 2, wherein two said slide holes are symmetrically provided on both sides of said drill rod.

4. A drill bit for deburring as claimed in claim 2 or 3 wherein each of said opposite ends of said cutter head is notched, said connecting block being located between said notches.

5. The bur of claim 4, wherein the connecting block is adapted to limit the end faces of the two notches when the two cutting edges are simultaneously slid inwardly to intersect.

6. A drill bit for deburring according to claim 5 wherein said drive mechanism comprises:

the sliding ring is sleeved outside the drill rod in a sliding manner and is provided with a threaded hole;

the two connecting rods are respectively positioned at the outer sides of the two cutter heads, the connecting rods are obliquely arranged, the inclination angles of the two connecting rods are opposite, and the upper end and the lower end of each connecting rod are respectively hinged with the slip ring and the cutter head on the side where the connecting rod is positioned;

and the threaded end of the fastening screw is in threaded connection with the threaded hole, and the end surface of the threaded end of the fastening screw is used for pressing the drill rod.

7. The drill bit for deburring of claim 6 wherein said connecting rod is provided with a hinge shaft at both ends, said hinge shaft having one end fixedly connected to said slide ring or bit at the side thereof and the other end penetrating said connecting rod and having a first stopper portion protruding radially at the end thereof.

8. The bur of claim 6, wherein the shank has a radially projecting second stop between the connecting block and the slide ring, the second stop for stopping the slide ring from sliding outwardly out of the slide bore.

9. A drill bit for deburring as set forth in claim 6 wherein said slide ring has a radially projecting boss with an outer side for opening said threaded bore.

10. A drill bit for deburring as claimed in claim 1 wherein said cutter head has a distal end face containing a cutting edge and parallel to said shank end face.