CN217142396U - Drilling tool for thin-wall cylindrical part - Google Patents

Abstract

The utility model relates to the thin wall drilling processing field, in particular to a drilling tool for thin wall cylinder parts; the clamp group is rotatably connected to the support group, and holes can be uniformly drilled on the side wall of the cylindrical thin-wall part by rotating the clamp group; the utility model discloses utilize the area of contact of drilling backing plate increase anchor clamps group and cylinder thin wall spare, and then improve the clamping-force of anchor clamps group, guarantee the processing stability, the while drilling backing plate can provide the supporting effect for cylinder thin wall spare, in the drilling course of working, offsets the local deformation that drilling pressure causes, improves processingquality.

Description

Drilling tool for thin-wall cylindrical part

Technical Field

The utility model relates to a thin wall drilling processing field, especially a thin wall is drilling frock for drum spare.

Background

The processing of thin-walled cylindrical parts has been a relatively difficult problem, and the rigidity of the parts is poor due to the excessively thin side wall, so that the parts are easy to deform in the processing process, and the overall quality of the products is further influenced. In order to solve the problems, when the side wall of the thin-wall cylindrical part is drilled, a filling machining method or a full-soft-claw-wrapping method is usually adopted, so that the contact area between a positioning clamping part and the part is increased as much as possible, and the defect of insufficient rigidity of the part is further overcome.

Therefore, the drilling tool for the thin-wall cylindrical part is provided for drilling the side wall of the thin-wall cylindrical part, so that the processing quality is improved, the supporting function of the clamp is enhanced, the problem of poor rigidity of the thin-wall part is solved, and the drilling tool needs to be manufactured by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a thin wall drum is drilling frock for spare to thin wall drum part is when drilling man-hour among the solution prior art, and the part rigidity is poor, and anchor clamps rotate the inflexible, lead to the part machining precision low, technical problem that production efficiency is low.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a thin wall is drilling frock for drum spare for the fixed cylinder thin wall spare of clamping, includes support group and anchor clamps group, rotatable the connecting of anchor clamps group is organized on the support, and anchor clamps group has cup jointed the inflation core including pivot and toper axle sleeve in the pivot, has cup jointed the drilling backing plate on the inflation core, and cylinder thin wall spare cup joints on the drilling backing plate, support group includes the workstation, is equipped with the base on the workstation, and the symmetry is equipped with two support frames on the base, and the outer wall butt of cylinder thin wall spare is on the support frame.

Furthermore, a transmission rod is rotatably connected to the workbench, and one end of the transmission rod is fixedly connected with a rotating shaft in the fixture set.

Further, the transmission rod is coincident with the axis of the rotating shaft.

Further, the pivot is close to the transmission rod end and is equipped with the shaft shoulder, and the outside at the pivot is established through central through-hole cover to the inflation core, and the one end butt of inflation core is equipped with the opening evenly to the other end of inflation core in the side of shaft shoulder.

Further, the opening penetrates the inner wall and the outer wall of the expansion core.

Furthermore, the end, far away from the transmission rod, of the rotating shaft is in threaded connection with a conical shaft sleeve, and the outer conical surface of the conical shaft sleeve abuts against the hole wall of the central hole of the expansion core.

Further, the outer diameter of the expansion core close to the shaft shoulder end is larger than that of the expansion core far away from the shaft shoulder end, and a drilling base plate is sleeved outside the expansion core.

Further, the expansion core is made of spring steel.

Further, the drill shim plate is made of epoxy resin.

The beneficial effects of the utility model are that:

the utility model provides a thin wall is drilling frock for drum spare, including support group and anchor clamps group, the two is used for the clamping fixed cylinder thin wall spare, improves the stability of thin wall drilling, and cylinder thin wall spare cup joints on anchor clamps group and outer wall butt support group, anchor clamps group rotatable connects on support group, through rotating anchor clamps group, can evenly drill on cylinder thin wall spare lateral wall; the utility model discloses utilize the area of contact of drilling backing plate increase anchor clamps group and cylinder thin wall spare, and then improve the clamping-force of anchor clamps group, guarantee the processing stability, the while drilling backing plate can provide the supporting effect for cylinder thin wall spare, in the drilling course of working, offsets the local deformation that drilling pressure causes, improves processingquality.

Drawings

Fig. 1 is a perspective view of the drilling tool for thin-walled cylindrical parts according to the present invention.

Fig. 2 is a left side view of the drilling tool for thin-walled cylindrical parts of the present invention.

Fig. 3 is a front view of the drilling tool for thin-walled cylindrical parts of the present invention.

Fig. 4 is a partial sectional view taken along line a-a of fig. 3.

The parts in the drawings are numbered as follows: 10. a bracket set; 11. a work table; 12. a base; 13. a support frame; 20. a clamp group; 21. a rotating shaft; 22. a conical shaft sleeve; 23. an expanded core; 24. drilling a base plate; 25. a transmission rod; 26. a shaft shoulder; 27. an opening; 30. a cylindrical thin-walled member.

Detailed Description

The present invention will now be described in detail with reference to the accompanying drawings. This figure is a simplified schematic diagram, and merely illustrates the basic structure of the present invention in a schematic manner, and therefore it shows only the constitution related to the present invention.

Please refer to fig. 1 and 2, the utility model provides a thin wall is drilling frock for cylinder thin wall spare for the fixed cylinder thin wall spare 30 of clamping, including support group 10 and anchor clamps group 20, support group 10 includes workstation 11, is equipped with base 12 on the workstation 11, and the symmetry is equipped with support frame 13 on the base 12, and rotatable being connected with anchor clamps group 20 on the support group 10, the utility model discloses with cylinder thin wall spare 30 clamping on anchor clamps group 20, cylinder thin wall spare 30 outer wall butt utilizes support group 10 and anchor clamps group 20 to cooperate jointly on two support frames 13 simultaneously, and is fixed with cylinder thin wall spare 30 clamping.

Further, referring to fig. 1 and 4, a transmission rod 25 is rotatably connected to the bracket set 10, one end of the transmission rod 25 is fixedly connected to a servo motor (not shown), and the other end of the transmission rod 25 is fixedly connected to the clamp set 20; specifically, the transmission rod 25 is rotatably connected to the working table 11 in the bracket set 10, the clamp set 20 includes a rotating shaft 21, the rotating shaft 21 is fixedly connected to the transmission rod 25, and preferably, the transmission rod 25 coincides with an axis of the rotating shaft 21.

In the embodiment, a bearing (not shown) is disposed between the transmission rod 25 and the working platform 11, and the transmission rod 25 is fixedly connected to the rotating shaft 21 for improving the stability of the rotation of the clamping set 20.

In another embodiment, the transmission rod 25 is detachably connected to the rotating shaft 21 by a coupler, so that the whole clamp group 20 can be detached conveniently.

Referring to fig. 3 and 4, a shaft shoulder 26 is arranged at one end of the rotating shaft 21 close to the transmission rod 25, the rotating shaft 21 is sleeved with an expansion core 23, the expansion core 23 is of a mandrel structure with two through ends, the expansion core 23 is sleeved outside the rotating shaft 21 through a central through hole, one end of the expansion core 23 abuts against the side surface of the shaft shoulder 26, openings 27 are uniformly arranged at the other end of the expansion core 23, and the openings 27 penetrate through the inner wall and the outer wall of the expansion core 23; one end of the rotating shaft 21, which is far away from the transmission rod 25, is in threaded connection with a conical shaft sleeve 22, and the outer conical surface of the conical shaft sleeve 22 abuts against the hole wall of the central hole of the expansion core 23. When the expansion core is used, the conical shaft sleeve 22 is screwed inwards, the outer conical surface of the conical shaft sleeve 22 gradually pushes the expansion core 23 open, so that the outer diameter of one end, away from the shaft shoulder 26, of the expansion core 23 is gradually increased, and the expansion effect is achieved. Among them, the provision of the opening 27 can reduce the structural strength of the expansion core 23, thereby being easily deformed when screwing in the taper sleeve 22.

Further, the outer diameter of the expansion core 23 close to the shaft shoulder 26 is larger than that of the expansion core far away from the shaft shoulder 26, and a drilling backing plate 24 is sleeved outside the expansion core 23; the utility model discloses cup joint cylinder thin wall spare 30 at drilling backing plate 24 surfaces, cylinder thin wall spare 30 is close to the one end butt of shaft shoulder 26 on expansion core 23 surfaces. Preferably, the expansion core 23 is made of spring steel; preferably, the drill plate 24 is made of epoxy.

The utility model utilizes the high strength and deformable effect of the spring steel in the using process, so that the expansion core 23 can expand outwards and extrude the drilling backing plate 24 under the extrusion of the conical shaft sleeve 22; the elasticity and the antiskid effect that epoxy has are recycled, when making expansion core 23 extrude drilling backing plate 24, the drilling backing plate 24 that has the elasticity effect can take place elastic deformation and then increase the area of contact with cylindrical thin wall spare 30, improves the clamping-force of anchor clamps group 20, and drilling backing plate 24 can provide the supporting effect for cylindrical thin wall spare 30 simultaneously, prevents that cylindrical thin wall spare 30 from in the drilling course of working, because drilling pressure leads to local deformation, improves processingquality.

Understandably, the drilling backing plate 24 can be drilled in the process of drilling the cylindrical thin-wall part 30, and due to the fact that the epoxy resin is low in manufacturing cost and can be recycled and remolded, the processing precision can be effectively guaranteed, and the processing quality of products is improved.

The utility model discloses a concrete operation does: firstly, the expansion core 23 is sleeved on the rotating shaft 21, then the drilling backing plate 24 is sleeved on the expansion core 23, finally, the cylindrical thin-wall piece 30 is sleeved on the drilling backing plate 24, one end of the cylindrical thin-wall piece 30 abuts against the outer surface of the expansion core 23, the conical shaft sleeve 22 is connected to the end portion of the rotating shaft 21 in a threaded mode, meanwhile, the outer wall of the conical shaft sleeve 22 abuts against the inner wall of the expansion core 23, the conical shaft sleeve 22 is rotated inwards, one end of the expansion core 23 is enabled to expand outwards along the opening 27 under the extrusion of the conical shaft sleeve 22, then, the conical shaft sleeve 24 abuts against the drilling backing plate 24, and the drilling backing plate 24 abuts against the cylindrical thin-wall piece 30, so that the cylindrical thin-wall piece 30 is clamped. In the clamped state, one end of the cone sleeve 22 abuts against the side surface of the expansion core 23.

The utility model provides a thin wall is drilling frock for cylinder spare, including support group 10 and anchor clamps group 20, the two is used for the clamping fixed cylinder thin wall spare 30, improves the stability of thin wall drilling, and cylinder thin wall spare 30 cup joints on anchor clamps group 20 and outer wall butt support group 10, anchor clamps group 20 rotatable connects on support group 10, through rotating anchor clamps group 20, can evenly drill on the cylinder thin wall spare 30 lateral wall; the utility model discloses utilize drilling backing plate 24 to increase the area of contact of anchor clamps group 20 and cylinder thin wall spare 30, and then improve the clamping-force of anchor clamps group 20, guarantee the processing stability, drilling backing plate 24 can provide the supporting effect for cylinder thin wall spare 30 simultaneously, in the drilling course of working, offsets the local deformation that drilling pressure causes, improves processingquality.

It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes or equivalents may be substituted for elements thereof by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application are intended to be covered by the present invention.

Claims (9)

1. The utility model provides a thin wall is drilling frock for cylinder thin wall spare (30) is fixed for the clamping, a serial communication port, including support group (10) and anchor clamps group (20), rotatable the connection of anchor clamps group (20) is on support group (10), and anchor clamps group (20) are including pivot (21) and taper shaft sleeve (22), have cup jointed expansion core (23) in pivot (21), have cup jointed drilling backing plate (24) on expansion core (23), and cylinder thin wall spare (30) cup joint on drilling backing plate (24), support group (10) are including workstation (11), are equipped with base (12) on workstation (11), and the symmetry is equipped with two support frames (13) on base (12), and the outer wall butt of cylinder thin wall spare (30) is on support frame (13).

2. The drilling tool for the thin-walled cylinder part according to claim 1, wherein a transmission rod (25) is rotatably connected to the worktable (11), and one end of the transmission rod (25) is fixedly connected with a rotating shaft (21) in the clamp group (20).

3. Drilling tool for thin-walled cylinders according to claim 2, characterized in that the transmission rod (25) coincides with the axis of the rotating shaft (21).

4. The drilling tool for the thin-walled cylinder part according to claim 1, wherein a shaft shoulder (26) is arranged at the end of the rotating shaft (21) close to the transmission rod (25), the expansion core (23) is sleeved outside the rotating shaft (21) through a central through hole, one end of the expansion core (23) abuts against the side surface of the shaft shoulder (26), and openings (27) are uniformly formed in the other end of the expansion core (23).

5. Drilling tool for thin-walled cylinders according to claim 4, characterized in that the openings (27) penetrate the inner and outer walls of the expansion core (23).

6. The drilling tool for the thin-walled cylinder part according to claim 4, wherein the end of the rotating shaft (21) far away from the transmission rod (25) is in threaded connection with a conical shaft sleeve (22), and the outer conical surface of the conical shaft sleeve (22) abuts against the hole wall of the central hole of the expansion core (23).

7. The drilling tool for the thin-walled cylinder part according to claim 1, characterized in that the outer diameter of the expansion core (23) close to the shaft shoulder (26) is larger than that of the expansion core far away from the shaft shoulder (26), and a drilling pad plate (24) is sleeved outside the expansion core (23).

8. Drilling tool for thin-walled cylinders according to claim 1, characterized in that the expansion core (23) is made of spring steel.

9. The drilling tool for thin-walled cylinders according to claim 1, characterized in that the drilling shim plate (24) is made of epoxy resin.

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