CN216912175U

CN216912175U - Positioning tool for drilling inclined hole on outer circular surface

Info

Publication number: CN216912175U
Application number: CN202220057785.6U
Authority: CN
Inventors: 于鹏; 孙毅龙; 宫超
Original assignee: Yantai Eddie Hydraulic Technology Co ltd
Current assignee: Yantai Eddie Hydraulic Technology Co ltd
Priority date: 2022-01-11
Filing date: 2022-01-11
Publication date: 2022-07-08
Anticipated expiration: 2032-01-11

Abstract

The utility model relates to a positioning tool for drilling an inclined hole on an outer circular surface, which comprises a base body abutted against the table surface of a drilling machine, wherein two ends of the base body are fixedly connected with positioning bodies which are obliquely arranged, and the included angle between the base body and the positioning bodies is equal to the included angle between the axis of a workpiece and the axis of a hole to be drilled; a positioning blind hole with an open upper end and a closed lower end or a positioning through hole with both ends open is arranged along the inclination direction of the positioning body, if the positioning through hole is formed, the lower end of the positioning through hole is in bolt connection with an adjusting bolt, and the adjusting bolt is in bolt connection with a locking nut; after the workpiece is inserted into the positioning blind hole or the positioning through hole, the lower end of the workpiece is abutted against the cavity bottom of the positioning blind hole or the inner end of the adjusting bolt, and the outer circular surface of the workpiece is in clearance fit with the inner circular surface of the positioning blind hole or the positioning through hole; and a guide hole which penetrates through the base body and has a diameter slightly larger than the diameter of the drill bit is formed in the positioning body corresponding to the position of the to-be-drilled hole on the workpiece along the vertical direction. The utility model can accurately position and meet the requirements of the size of a drilling point and the requirements of a drilling angle and an axis angle.

Description

Positioning tool for drilling inclined hole on outer circular surface

Technical Field

The utility model relates to a universal part of a machine for cutting, in particular to a positioning tool for drilling an inclined hole on an outer circular surface.

Background

When a hole is drilled on the surface of a cylindrical workpiece, the drill bit is easy to slip due to the fact that the contact surface is the arc surface, the surface of the workpiece is scratched, the drilling angle is deviated, other geometric tolerance is out of tolerance, and even the drill bit is broken. The rejection rate of the processed finished product is improved, the manufacturing cost is directly increased, and economic loss is caused.

SUMMERY OF THE UTILITY MODEL

In order to improve the machining precision of a workpiece and ensure the stability of a working state, the utility model provides a valve core inner hole finish machining positioning tool, which adopts the technical scheme that:

the utility model provides a location frock of inclined hole is bored at excircle face, includes the pedestal with rig mesa butt, its characterized in that: two ends of the seat body are fixedly connected with positioning bodies which are obliquely arranged, and the included angle between the seat body and the positioning bodies is equal to the included angle between the axis of the workpiece and the axis of the hole to be drilled; a positioning blind hole with an open upper end and a closed lower end or a positioning through hole with both ends open is arranged along the inclination direction of the positioning body, if the positioning through hole is formed, the lower end of the positioning through hole is in bolt connection with an adjusting bolt, and the adjusting bolt is in bolt connection with a locking nut; after the workpiece is inserted into the positioning blind hole or the positioning through hole, the lower end of the workpiece is abutted against the cavity bottom of the positioning blind hole or the inner end of the adjusting bolt, and the outer circular surface of the workpiece is in clearance fit with the inner circular surface of the positioning blind hole or the positioning through hole; and a guide hole which penetrates through the base body and has a diameter slightly larger than the diameter of the drill bit is formed in the positioning body corresponding to the position of the to-be-drilled hole on the workpiece along the vertical direction.

Furthermore, the middle part of the positioning body is provided with a notch for breaking the positioning blind hole or the positioning through hole.

Furthermore, a plane is processed on the positioning body corresponding to the upper end of the guide hole.

Furthermore, the positioning body is provided with an angle positioning hole communicated with the positioning blind hole or the positioning through hole.

Furthermore, the cross section of the angle positioning hole is in an oblong shape, and the projection of the oblong center line is superposed with the projection of the axis of the positioning blind hole or the positioning through hole.

Furthermore, more than two screw holes are arranged on the seat body.

Compared with the prior art, the guide hole is in a vertical state and is consistent with the axial direction of a drill rod of a drilling machine, the drill rod is stressed vertically downwards in the drilling process, no component force is generated, the aperture of the guide hole is slightly larger than the diameter of a drill bit, the drill bit is guided to be positioned before contacting with a workpiece to be machined, meanwhile, the rigidity of the drill bit is increased, the workpiece is completely attached to a tool, the drill bit is perfectly attached to the workpiece during drilling, the drill bit does not slide left and right, accurate positioning is achieved, and the size requirement of a drilling point and the requirements of a drilling angle and an axis angle are met. The adjusting nut and the locking nut at the bottom can be flexibly adjusted so as to adjust the insertion depth of the control part, and further the position of the drilling hole can be adjusted.

Drawings

Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.

Fig. 2 is a schematic sectional structure view of fig. 1.

Fig. 3 is a partially enlarged view of fig. 2.

Reference numbers in the figures: the device comprises a seat body-1, a positioning body-2, an adjusting bolt-3, a locking nut-4, a guide hole-5, a notch-6, a plane-7, an angle positioning hole-8 and a screw hole-9.

Detailed Description

The technical solutions in the embodiments will be described clearly and completely with reference to the drawings in the embodiments, and it is obvious that the described embodiments are only a part of the embodiments, but not all embodiments.

Embodiment 1, as shown in fig. 1 to 3, the positioning tool for drilling the inclined hole on the outer circular surface includes a base body 1 abutting against the drilling machine table-board, and two screw holes 9 are formed in the base body 1 to penetrate screws to be fixed with the drilling machine table-board. Two ends of the seat body 1 are fixedly connected with positioning bodies 2 which are obliquely arranged, and the included angle a between the seat body 1 and the positioning bodies 2 is equal to the included angle between the axis of the workpiece 100 and the axis of the hole to be drilled; a positioning through hole with two open ends is formed along the inclination direction of the positioning body 2, the lower end of the positioning through hole is in threaded connection with an adjusting bolt 3, and a locking nut 4 is in threaded connection with the adjusting bolt 3; after the workpiece 100 is inserted into the positioning blind hole or the positioning through hole, the lower end of the workpiece is abutted against the inner end of the adjusting bolt 3, and the outer circular surface of the workpiece is in clearance fit with the inner circular surface of the positioning blind hole or the positioning through hole; a guide hole 5 which penetrates through the base body 1 and has a diameter slightly larger than the diameter of the drill bit is arranged on the positioning body 2 corresponding to the position of a to-be-drilled hole on the workpiece along the vertical direction. After the cylindrical workpiece is arranged in the positioning through hole, the position of the workpiece to be drilled is adjusted through the bottom adjusting bolt, the locking nut 4 is locked after the adjustment, and a drill enters from the guide hole to perform drilling processing.

In another preferred embodiment, in order to reduce the smoothness of the insertion of the workpiece and facilitate the grasping and observation of the workpiece, the positioning body 2 is provided with a notch 6 in the middle thereof, which interrupts the positioning through hole.

In another preferred embodiment, in order to facilitate the penetration of the drill into the pilot hole 5 without the drill slipping, a flat surface 7 is machined in the positioning body 2 in correspondence with the upper end of the pilot hole 5.

In another preferred embodiment, in order to accurately position the circumferential angle of the hole to be drilled on the outer circular surface of the workpiece, the positioning body 2 is provided with an angular positioning hole 8 communicated with the positioning blind hole or the positioning through hole. The cross section of the angle positioning hole 8 is in a long circle shape, and the projection of the center line of the long circle shape is superposed with the projection of the axis of the positioning blind hole or the positioning through hole. If an angle positioning line is drawn on the outer circular surface of the workpiece in advance, the circumferential angle of the hole to be drilled on the outer circular surface of the workpiece is determined when the angle positioning line is coincident with the central line of the angle positioning hole 8.

Embodiment 2 is otherwise the same as embodiment 1, except that a positioning blind hole having an open upper end and a closed lower end is formed in the inclined direction of the positioning body 2, and the lower end of the workpiece abuts against the cavity bottom of the positioning blind hole. When setting up notch 6, notch 6 breaks the location blind hole. The angle positioning hole 8 is also communicated with the positioning blind hole. When the position of a hole to be drilled of a cylindrical workpiece needs to be adjusted, gaskets with different thicknesses can be filled in the blind hole to realize the adjusting function.

The above descriptions are only preferred embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered as the technical scope of the present invention, and the technical solutions and the utility model concepts of the present invention are equivalent to or changed within the scope of the present invention.

Claims

1. The utility model provides a location frock of inclined hole is bored at excircle face, includes pedestal (1) with the rig mesa butt, its characterized in that: two ends of the seat body (1) are fixedly connected with positioning bodies (2) which are obliquely arranged, and the included angle (a) between the seat body (1) and the positioning bodies (2) is equal to the included angle between the axis of the workpiece (100) and the axis of the hole to be drilled; a positioning blind hole with an open upper end and a closed lower end or a positioning through hole with both open ends is arranged along the inclined direction of the positioning body (2), if the positioning through hole is formed, the lower end of the positioning through hole is in threaded connection with an adjusting bolt (3), and the adjusting bolt (3) is in threaded connection with a locking nut (4); after the workpiece (100) is inserted into the positioning blind hole or the positioning through hole, the lower end of the workpiece is abutted against the cavity bottom of the positioning blind hole or the inner end of the adjusting bolt (3), and the outer circular surface of the workpiece is in clearance fit with the inner circular surface of the positioning blind hole or the positioning through hole; a guide hole (5) which penetrates through the base body (1) and has a diameter slightly larger than the diameter of the drill bit is arranged on the positioning body (2) corresponding to the position of the to-be-drilled hole on the workpiece along the vertical direction.

2. The positioning tool for drilling the inclined hole on the outer circular surface according to claim 1, characterized in that: the middle part of the positioning body (2) is provided with a notch (6) for breaking the positioning blind hole or the positioning through hole.

3. The positioning tool for drilling the inclined hole on the outer circular surface according to claim 1, characterized in that: a plane (7) is processed on the positioning body (2) corresponding to the upper end of the guide hole (5).

4. The positioning tool for drilling the inclined hole on the outer circular surface according to claim 1, characterized in that: the positioning body (2) is provided with an angle positioning hole (8) communicated with the positioning blind hole or the positioning through hole.

5. The positioning tool for drilling the inclined hole on the outer circular surface according to claim 4, characterized in that: the cross section of the angle positioning hole (8) is in a long circle shape, and the projection of the long circle center line is superposed with the projection of the axis of the positioning blind hole or the positioning through hole.

6. The positioning tool for drilling the inclined hole on the outer circular surface according to claim 1, characterized in that: more than two screw holes (9) are arranged on the base body (1).