阅读说明：本技术 一种圆环状工件的等分钻孔夹具 (Equant drilling clamp for circular ring-shaped workpiece ) 是由 倪志刚 于 2020-04-29 设计创作，主要内容包括：本发明公开了一种圆环状工件的等分钻孔夹具,包括底板,底板的右侧成型有矩形的定夹座,定夹座左端面的上端成型有左凸台,左凸台的左端面上成型有圆形的右沉台,右沉台的底面上成型有右沉孔,右沉孔的底面上成型有右插孔,所述定夹座的右沉台内插接有右夹盘,右夹盘的右端面上成型有右支轴,右支轴插接在定夹座的右插孔内,所述的右支轴上插套固定有右轴承,右轴承插接定夹座的右沉孔内。(The invention discloses an equal-division drilling clamp for a circular workpiece, which comprises a bottom plate, wherein a rectangular fixed clamping seat is formed on the right side of the bottom plate, a left boss is formed at the upper end of the left end face of the fixed clamping seat, a circular right sinking platform is formed on the left end face of the left boss, a right counter bore is formed on the bottom surface of the right sinking platform, a right insertion hole is formed on the bottom surface of the right counter bore, a right clamping plate is inserted in the right sinking platform of the fixed clamping seat, a right support shaft is formed on the right end face of the right clamping plate and inserted in the right insertion hole of the fixed clamping seat, a right bearing is fixedly inserted in the right support shaft in a sleeve mode, and the right bearing is inserted in the right sinking hole of the fixed clamping seat.)

1. The utility model provides a halving boring grab of ring form work piece, includes bottom plate (1), and the right side shaping of bottom plate (1) has the fixed holder (11) of rectangle, its characterized in that: a left boss (12) is formed at the upper end of the left end face of the fixed clamping seat (11), a round right sinking platform (13) is formed on the left end face of the left boss (12), a right counter bore (14) is formed on the bottom face of the right sinking platform (13), a right insertion hole (15) is formed on the bottom face of the right counter bore (14), a right clamping plate (3) is inserted in the right sinking platform (13) of the fixed clamping seat (11), a right fulcrum shaft (31) is formed on the right end face of the right clamping plate (3), the right fulcrum shaft (31) is inserted in the right insertion hole (15) of the fixed clamping seat (11), a right bearing (4) is fixedly inserted on the right fulcrum shaft (31), and the right bearing (4) is inserted in the right counter bore (14) of the fixed clamping seat (11);

the upper end face of the left end of the bottom plate (1) abuts against the movable clamping seat (2), the lower end of the right end face of the movable clamping seat (2) is provided with a right boss (21), and the upper end face of the right end of the right boss (21) abuts against the lower end face of the left boss (12); a left sinking platform (22) opposite to the right sinking platform (13) is formed at the upper end of the right end face of the movable clamping seat (2), a left counter bore (23) is formed on the bottom face of the left sinking platform (22), a left bearing (8) and a left chuck (7) are respectively inserted into the left counter bore (23) and the left sinking platform (22) of the movable clamping seat (2), a left fulcrum shaft (71) is formed on the left end face of the left chuck (7), the left fulcrum shaft (71) is inserted into and fixed in the left bearing (8) and penetrates through the movable clamping seat (2) to form a slot (72), a limiting rod (9) is inserted into the slot (72) of the left fulcrum shaft (71), the limiting rod (9) is hinged on the left fulcrum shaft (71) through a pin shaft (10), a circular limiting ring (24) is formed on the left end face of the movable clamping seat (2) around the left fulcrum shaft (71), a plurality of clamping grooves (26) are formed on the outer wall of the limiting ring (24), and a clamping strip (91) perpendicular to the outer end (9) of the limiting rod (9, the clamping strip (91) is inserted into the clamping groove (26) of the limiting ring (24); a threaded hole (25) is formed in the right end face of the right boss (21), a bolt (5) is screwed in the threaded hole (25), and the bolt (5) is hinged to the fixed clamping seat (11).

2. The equant drilling clamp for the circular ring-shaped workpiece according to claim 1, characterized in that: the bolt (5) and the fixed clamping seat (11) are hinged in a manner that the bolt (5) is inserted into the fixed clamping seat (11), concave holes (16) are formed in the two end faces of the fixed clamping seat (11), a limiting ring (6) is fixedly inserted into the concave holes (16), the limiting ring (6) is inserted into the sleeve and fixed onto the bolt (5), and a hand wheel (51) is formed at the right end of the bolt (5).

3. The equant drilling clamp for the circular ring-shaped workpiece according to claim 2, characterized in that: and guide columns (30) parallel to the bolts (5) are fixedly inserted into the fixed clamping seats (11) on the two sides of the bolts (5), and the guide columns (30) are inserted into the right bosses (21).

4. The equant drilling clamp for the circular ring-shaped workpiece according to claim 1, characterized in that: the central axis of the right sinking platform (13) on the fixed clamping seat (11) coincides with the central axis of the left sinking platform (22) on the movable clamping seat (2), and the aperture of the right sinking platform (13) is equal to that of the left sinking platform (22).

5. The equant drilling clamp for the circular ring-shaped workpiece according to claim 1, characterized in that: the upper end surface of the right boss (21) of the movable clamping seat (2) is an inclined surface, the lower end surface of the left boss (12) is an inclined surface, and the inclination angle of the lower end surface of the left boss (12) is equal to that of the upper end surface of the right boss (21).

6. The equant drilling clamp for the circular ring-shaped workpiece according to claim 1, characterized in that: the limiting ring is characterized in that at least two clamping grooves (26) are formed in the limiting ring (24), the clamping grooves (26) are uniformly distributed in an annular mode around the central axis of the limiting ring (24), and the width of each clamping groove (26) is equal to that of each clamping strip (91).

7. The equant drilling clamp for the circular ring-shaped workpiece according to claim 1, characterized in that: the handle (91) is formed at the outer end of the limiting rod (9), the permanent magnet block (20) is fixed on the right end face of the outer end of the limiting rod (9), and the permanent magnet block (20) and the limiting ring (24) attract each other.

8. The equant drilling clamp for the circular ring-shaped workpiece according to claim 1, characterized in that: and a plurality of mounting holes (17) are formed on the front side edge and the rear side edge of the bottom plate (1).

Technical Field

The invention relates to the technical field of drilling equipment, in particular to an equant drilling clamp for a circular workpiece.

Background

Drilling is a common machining mode, and the existing drilling mode comprises a drill floor, a radial drilling machine and the like. In actual drilling, drilling holes vertical to the plane are machined in the plane of the workpiece, the circular arc-shaped outer wall of the workpiece is troublesome to machine, especially, equant drilling holes need to be machined in the outer walls of some circular ring-shaped workpieces, the more troublesome is the process, the equant holes in the existing circular ring-shaped workpieces need to be scribed on the outer walls firstly to position the drilling positions, then the vice jaw is loosened, the workpiece is rotated, and then the vice jaw is fastened to hold the workpiece; the workpiece needs to be replaced for many times, and the machining difficulty is high and the time consumption is long.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides an equant drilling clamp for an annular workpiece, which is convenient for processing equant drilled holes on the outer wall of the annular workpiece.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

an equal-division drilling clamp for a circular workpiece comprises a base plate, wherein a rectangular fixed clamping seat is formed on the right side of the base plate, a left boss is formed at the upper end of the left end face of the fixed clamping seat, a circular right sinking platform is formed on the left end face of the left boss, a right counter bore is formed on the bottom face of the right sinking platform, a right insertion hole is formed in the bottom face of the right counter bore, a right chuck plate is inserted in the right sinking platform of the fixed clamping seat, a right fulcrum shaft is formed on the right end face of the right chuck plate and inserted in the right insertion hole of the fixed clamping seat, a right bearing is fixed on the right fulcrum shaft through an insertion sleeve, and the right bearing is inserted in the right sinking hole of the fixed clamping seat;

the upper end face of the left end of the bottom plate abuts against the movable clamping seat, a right boss is formed at the lower end of the right end face of the movable clamping seat, and the upper end face of the right end of the right boss abuts against the lower end face of the left boss; the upper end of the right end face of the movable clamping seat is provided with a left sinking platform opposite to the right sinking platform, the bottom surface of the left sinking platform is provided with a left counter bore, the left counter bore and the left sinking platform of the movable clamping seat are respectively spliced with a left bearing and a left chuck, the left end face of the left chuck is provided with a left support shaft, the left support shaft is spliced and fixed in the left bearing and penetrates through the movable clamping seat to be provided with a slot, a limiting rod is inserted in the slot of the left support shaft, the limiting rod is hinged on the left support shaft through a pin shaft, the left end face of the movable clamping seat around the left support shaft is provided with a circular limiting ring, the outer wall of the limiting ring is provided with a plurality of clamping grooves, the outer end of the limiting rod is bent to form clamping strips vertical to the limiting rod, and the; and a threaded hole is formed in the right end face of the right boss, a bolt is screwed in the threaded hole, and the bolt is hinged to the fixed clamping seat.

Preferably, the bolt is hinged to the fixed clamping seat in a manner that the bolt is inserted into the fixed clamping seat, concave holes are formed in two end faces of the fixed clamping seat, a limiting ring is fixedly inserted into the concave holes in an inserting mode, the limiting ring is inserted into the bolt in a sleeved mode, and a hand wheel is formed at the right end of the bolt.

Preferably, the fixed clamping seats on the two sides of the bolt are fixedly connected with guide columns parallel to the bolt in an inserted mode, and the guide columns are connected to the right boss in an inserted mode.

Preferably, the central axis of the right sinking platform on the fixed clamping seat coincides with the central axis of the left sinking platform on the movable clamping seat, and the aperture of the right sinking platform is equal to that of the left sinking platform.

Preferably, the upper end surface of the right boss of the movable clamping seat is an inclined surface, the lower end surface of the left boss is an inclined surface, and the inclination angle of the lower end surface of the left boss is equal to that of the upper end surface of the right boss.

Preferably, at least two clamping grooves are arranged on the limiting ring, the clamping grooves are uniformly distributed in an annular shape around the central axis of the limiting ring, the width of each clamping groove is equal to that of each clamping strip,

preferably, a handle is formed at the outer end of the limiting rod, a permanent magnet block is fixed on the right end face of the outer end of the limiting rod, and the permanent magnet block and the limiting ring attract each other.

Preferably, a plurality of mounting holes are formed on the front side edge and the rear side edge of the bottom plate.

The invention has the beneficial effects that: the clamp provided by the utility model is convenient for clamping and fixing the circular workpiece, and is convenient for processing the equant holes on the outer wall of the workpiece.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a schematic top view of the present invention;

fig. 4 is a schematic sectional view at a-a in fig. 3.

In the figure: 1. a base plate; 11. a fixed clamping seat; 12. a left boss; 13. a right sinking platform; 14. a right counterbore; 15. a right jack; 16. concave holes; 17. mounting holes; 2. a movable clamping seat; 21. a right boss; 22. a left sinking platform; 23. a left counterbore; 24. a limiting ring; 25. a threaded hole; 26. a card slot; 3. a right chuck; 31. a right fulcrum; 4. a right bearing; 5. a bolt; 51. a hand wheel; 6. a limiting ferrule; 7. a left chuck; 71. a left fulcrum; 8. a left bearing; 9. a limiting rod; 10. a pin shaft; 20. permanent magnet blocks; 30. and a guide post.

Detailed Description