CN211708741U

CN211708741U - Self-centering drilling tool

Info

Publication number: CN211708741U
Application number: CN201922356494.8U
Authority: CN
Inventors: 孙文海
Original assignee: Laizhou Origin Machinery Co Ltd
Current assignee: Laizhou Origin Machinery Co Ltd
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2020-10-20
Anticipated expiration: 2029-12-23

Abstract

The utility model provides a from centering drilling frock, including the anchor clamps seat, anchor clamps seat one side is first hydro-cylinder seat and last hydro-cylinder, anchor clamps seat opposite side is second hydro-cylinder seat and lower hydro-cylinder, install the clamp splice of breaking out that is used for centre gripping blank work piece on the anchor clamps seat, the last anchor clamps of the clamp splice of breaking out specifically is connected with connecting pin axle, it is connected with last hydro-cylinder connecting rod through last attach joint to go up the connecting pin axle, it is driven by last hydro-cylinder to go up the hydro-cylinder connecting rod, lower anchor clamps specifically are connected with lower hydro-cylinder connecting rod, lower anchor clamps body still is connected with down connecting pin axle, lower connecting pin axle is connected with the one end of connecting rod through lower attach joint. The self-centering drilling tool is compact in structure, convenient to install, high in replacement speed, good in stability, capable of guaranteeing the quality of workpieces, simple and safe to operate, free of the operation of technical workers with high technical content, wide in application range and capable of being used for drilling workpieces with strict requirements on centering stability.

Description

Self-centering drilling tool

Technical Field

The utility model belongs to work piece processing field, in particular to from centering drilling frock.

Background

In the production and processing process of the rigging shackle, a large proportion of parts of shackle products need to be drilled, so that a common drilling process also plays an important role in the quality and assembly of the products, and the drilling verticality and the production process reliability are guaranteed, so that the production cost and the production efficiency of enterprises are greatly influenced. In the conventional machining method, a specially-made lengthened drill bit is required to be customized, a clamp in the form of a bench vice is used for clamping a workpiece, a hole is drilled from top to bottom, another hole is drilled, and then the hole of the workpiece is reamed on another device. Therefore, the operation is troublesome, an operator carries and clamps twice, and the labor intensity of the operator is high. Drilling one hole and then another hole, the machining time is long, and the production efficiency is low. One side of the bench vice type clamp is fixed, and the other side of the bench vice type clamp moves, so that the drilling position degree changes along with the change of the overall dimension of a workpiece, the stability of the quality cannot be guaranteed by drilling, and the production cost and the production efficiency of an enterprise are directly influenced.

Therefore, a self-centering drilling tool with scientific and reasonable design is needed at present.

SUMMERY OF THE UTILITY MODEL

The utility model provides a from centering drilling frock has solved among the prior art the problem that stability to the more strict drilling work piece processing of centering requirement is difficult to the guarantee.

The technical scheme of the utility model is realized like this: a self-centering drilling tool comprises a clamp seat, wherein a first oil cylinder seat and an upper oil cylinder are arranged on one side of the clamp seat, the other side of the clamp seat is provided with a second oil cylinder seat and a lower oil cylinder, the clamp seat is provided with a shackle clamping block for clamping a shackle blank workpiece, the shackle clamping block consists of an upper clamp body and a lower clamp body, the upper clamp body is connected with an upper connecting pin shaft, the upper connecting pin shaft is connected with an upper oil cylinder connecting rod through an upper connecting joint, the upper oil cylinder connecting rod is driven by the upper oil cylinder, the lower clamp body is connected with a lower oil cylinder connecting rod which is driven by the lower oil cylinder, the lower clamp body is also connected with a lower connecting pin shaft, the lower connecting pin shaft is connected with one end of the connecting rod through a lower connecting joint, the other end of the connecting rod is connected with the upper connecting joint, and the connecting rod can rotate by taking the middle pin shaft as a center.

As a preferred embodiment, the connecting rod is connected to the upper connecting joint through an upper pin shaft, and the connecting rod is connected to the lower connecting joint through a lower pin shaft.

As a preferred embodiment, an upper gland is arranged at the joint of the upper connecting pin shaft and the upper clamp body.

As a preferred embodiment, a half gland is arranged at the joint of the lower oil cylinder connecting rod and the lower clamp body.

As a preferred embodiment, a lower gland is arranged at the joint of the lower connecting pin shaft and the lower clamp body.

In a preferred embodiment, the first cylinder block is provided with a side cover plate.

In a preferred embodiment, a connecting plate is disposed on a bottom surface of the clamp seat.

After the technical scheme is adopted, the beneficial effects of the utility model are that: this can force two anchor clamps body synchronous operation under the traction of connecting rod when the action of self-centering drilling frock, reach from centering effect, no matter how big change of blank work piece, can guarantee the center invariable all the time. The self-centering drilling tool is compact in structure, convenient to install, high in replacement speed, good in stability, capable of guaranteeing the quality of workpieces, simple and safe to operate, free of the operation of technical workers with high technical content, wide in application range and capable of being used for drilling workpieces with strict requirements on centering stability.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic view of the overall structure of the self-centering drilling tool of the present invention;

fig. 2 is a schematic sectional structure view of the self-centering drilling tool of the present invention;

fig. 3 is a schematic structural diagram of the middle connection plate of the present invention.

In the drawings, 1-the gripper seat; 2-a first cylinder block; 3, feeding an oil cylinder; 4-a second cylinder block; 5-lower oil cylinder; 6-shackle blank workpiece; 7-shackle clamping blocks; 8-mounting a clamp body; 9-lower clamp body; 10-connecting a pin shaft; 11-upper connection joint; 12-upper cylinder connecting rod; 13-lower cylinder connecting rod; 14-lower connecting pin shaft; 15-lower connection joint; 16-a connecting rod; 17-a middle pin shaft; 18-upper pin shaft; 19-lower pin shaft; 20-pressing a cover; 21-half gland; 22-lower gland; 23-side cover plate; 24-connecting plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Example (b):

as shown in fig. 1 to 3, a self-centering drilling tool comprises a clamp base 1, wherein one side of the clamp base 1 is provided with a first oil cylinder base 2 and an upper oil cylinder 3, the other side of the clamp base 1 is provided with a second oil cylinder base 4 and a lower oil cylinder 5, a shackle clamping block 7 for clamping a shackle blank workpiece 6 is arranged on the clamp base 1, the shackle clamping block 7 consists of an upper clamp body 8 and a lower clamp body 9, the upper clamp body 8 is connected with an upper connecting pin shaft 10, the upper connecting pin shaft 10 is connected with an upper oil cylinder connecting rod 12 through an upper connecting joint 11, the upper oil cylinder connecting rod 12 is driven by the upper oil cylinder 3, the lower clamp body 9 is connected with a lower oil cylinder connecting rod 13, the lower oil cylinder connecting rod 13 is driven by the lower oil cylinder 5, the lower clamp body 9 is also connected with a lower connecting pin shaft 14, the lower connecting pin shaft 14 is connected with one end of a connecting rod 16 through a lower connecting joint 15, the other end of the connecting rod 16 is connected with, the connecting rod 16 is connected with the upper connecting joint 11 through an upper pin shaft 18, the connecting rod 16 is connected with the lower connecting joint 15 through a lower pin shaft 19, an upper gland 20 is arranged at the joint of the upper connecting pin shaft 10 and the upper clamp body 8, a half gland 21 is arranged at the joint of the lower oil cylinder connecting rod 13 and the lower clamp body 9, a lower gland 22 is arranged at the joint of the lower connecting pin shaft 14 and the lower clamp body 9, a side cover plate 23 is arranged on the first oil cylinder seat 2, and a connecting plate 24 is arranged on the bottom surface of the clamp seat 1.

When the device works, an operator puts a shackle blank workpiece into the shackle clamping block, the vertical thin oil cylinder is ejected out after the device is started, the connecting pieces are driven to move, the upper clamp body and the lower clamp body are driven by the connecting pieces to move in opposite directions, the shackle clamping block is driven to clamp the shackle blank workpiece, and two sides of a drill bit are simultaneously machined. The shackle clamping blocks can be manufactured and replaced according to the sizes of shackle blank workpieces of different models, so that the shackle blank workpieces of various models can be processed. This can force two anchor clamps body synchronous operation under the traction of connecting rod when the action of self-centering drilling frock, reach from centering effect, no matter how big change of blank work piece, can guarantee the center invariable all the time. The self-centering drilling tool is compact in structure, convenient to install, high in replacement speed, good in stability, capable of guaranteeing the quality of workpieces, simple and safe to operate, free of the operation of technical workers with high technical content, wide in application range and capable of being used for drilling workpieces with strict requirements on centering stability.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a from centering drilling frock which characterized in that includes: the anchor clamps seat, anchor clamps seat one side is first hydro-cylinder seat and last hydro-cylinder, anchor clamps seat opposite side is second hydro-cylinder seat and lower hydro-cylinder, install the clamp splice of breaking out that is used for the centre gripping blank work piece of breaking out on the anchor clamps seat, the clamp splice of breaking out comprises last anchor clamps body and lower anchor clamps body, it has last connecting pin axle to go up anchor clamps body coupling, it is connected with last hydro-cylinder connecting rod through last attach fitting to go up the hydro-cylinder connecting rod by go up hydro-cylinder drive, lower anchor clamps body coupling has lower hydro-cylinder connecting rod, lower hydro-cylinder connecting rod by lower hydro-cylinder drive, lower anchor clamps body still is connected with down connecting pin axle, lower connecting pin axle is connected with the one end of connecting rod through lower attach fitting down, the other end of connecting rod with go up attach fitting and connect, the connecting rod can use well round pin axle as the center.

2. The self-centering drilling tool according to claim 1, characterized in that: the connecting rod is connected with the upper connecting joint through an upper pin shaft, and the connecting rod is connected with the lower connecting joint through a lower pin shaft.

3. The self-centering drilling tool according to claim 1, characterized in that: an upper gland is arranged at the joint of the upper connecting pin shaft and the upper clamp body.

4. The self-centering drilling tool according to claim 1, characterized in that: and a half gland is arranged at the joint of the lower oil cylinder connecting rod and the lower clamp body.

5. The self-centering drilling tool according to claim 1, characterized in that: and a lower gland is arranged at the joint of the lower connecting pin shaft and the lower clamp body.

6. The self-centering drilling tool according to claim 1, characterized in that: and the first oil cylinder seat is provided with a side cover plate.

7. The self-centering drilling tool according to claim 1, characterized in that: and a connecting plate is arranged on the bottom surface of the clamp seat.