CN112388001A

CN112388001A - Hydraulic drill clamp

Info

Publication number: CN112388001A
Application number: CN202011220316.3A
Authority: CN
Inventors: 龚植祥
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-05
Filing date: 2020-11-05
Publication date: 2021-02-23

Abstract

The invention relates to the technical field of drill bit clamp mechanisms, and discloses a hydraulic drill bit clamp which comprises a clamping connecting rod, wherein a clamping sleeve is fixedly installed at the bottom end of the clamping connecting rod, a fixed connecting rod is movably sleeved on the inner part of the periphery of the clamping sleeve, and a drill bit clamping plate is fixedly installed at the other end of the fixed connecting rod and positioned in the inner cavity of the clamping sleeve. This fluid pressure type drill jig, to the clamping sleeve, the fixed connecting rod, the setting of clamping piston and drill bit splint, the pressure size that utilizes liquid to receive on each face when the pressurized is the same, and then make drill bit splint move to the inboard and grasp the drill bit, for the mode of current wrench type chuck or morbid reducing sleeve centre gripping, the operation is comparatively simple and convenient and clamping-force is great, make it adapt to the drill bit of different specifications size effectively simultaneously, and then improved the application scope of this drill jig effectively, and work efficiency when changing the drill bit is higher.

Description

Hydraulic drill clamp

Technical Field

The invention relates to the technical field of drill bit clamp mechanisms, in particular to a hydraulic drill bit clamp.

Background

The drill bit clamp is one of main accessories in lathe machining and is mainly used for clamping drill bits of different types, wherein a wrench type chuck is mainly adopted for some drill bits with smaller specifications, and a mode of clamping a Morse type reducing sleeve is required for some drill bits with larger specifications.

The wrench type drill chuck is troublesome in bit replacement, the drill bit needs to be loosened or clamped by means of the wrench wheel, and the gear is seriously abraded in the long-term use process of the wrench wheel, so that the phenomenon of loosening and slipping is very easy to occur in the use process, certain potential safety hazards exist, and the situation that the drill bit cannot be clamped or is difficult to disassemble is caused; when the tool bit is used, the tool bit of one specification can be clamped only by sleeving two to three groups of tool bit reducing sleeves, and the tool bit needs to be adapted to disassemble and assemble a plurality of groups of tool bit reducing sleeves, so that the whole disassembling and assembling steps are complex, and the working efficiency is low.

Disclosure of Invention

Technical problem to be solved

The invention provides a hydraulic drill bit clamp, which has the advantages of applicability to drill bits of various common specifications, high safety performance, simple operation steps for disassembling and assembling the drill bits, good stability and high efficiency for replacing the drill bits, and solves the problems that a spanner type drill bit clamp is troublesome in replacing the drill bits, the drill bits need to be loosened or clamped by means of a spanner wheel, the gear is seriously worn in the long-term use process of the spanner wheel, the phenomenon of loosening and slipping is very easy to occur in use, certain potential safety hazards exist, and the drill bits cannot be clamped or are difficult to disassemble; when the tool bit is used, the tool bit of one specification can be clamped only by sleeving two or three groups of tool bit reducing sleeves, and the tool bit needs to be adapted to disassemble and assemble a plurality of groups of tool bit reducing sleeves, so that the whole disassembling and assembling steps are complicated, and the working efficiency is low.

(II) technical scheme

The invention provides the following technical scheme: the utility model provides a hydraulic pressure type drill jig, includes the joint connecting rod, the bottom fixed mounting of joint connecting rod has clamping sleeve, fixed connecting rod has been cup jointed in the activity on the clamping sleeve outlying inside, fixed connecting rod's one end just is located clamping sleeve's peripheral fixedly connected with clamping piston, and fixed connecting rod's the other end and be located clamping sleeve's inner chamber in fixed mounting have a drill bit splint, clamping sleeve's bottom fixed mounting has sealed sleeve, pressure piston has been cup jointed in the activity on the middle part of joint connecting rod surface and be located sealed sleeve's inner wall, pressure piston's top fixed mounting has and joint connecting rod surface top threaded connection has pressure sleeve.

Preferably, the shear thickening fluid is filled in an inner cavity formed by the clamping sleeve, the sealing sleeve and the pressure piston.

Preferably, three groups of fan-shaped through grooves which are the same as the outer portions of the clamping pistons are formed in the outer surface of the clamping sleeve, and the fixed connecting rods are arranged at equal intervals along the axial direction of the fan-shaped through grooves.

Preferably, a V-shaped clamping groove is formed in the other end of the drill clamping plate and penetrates through the upper end and the lower end of the drill clamping plate.

Preferably, the top end of the clamping connecting rod is designed to be a conical structure, and two surfaces of the top end of the conical structure of the clamping connecting rod are respectively milled with a group of grooves with curved structures.

(III) advantageous effects

The invention has the following beneficial effects:

1. this fluid pressure type drill jig, to the clamping sleeve, the fixed connecting rod, the setting of clamping piston and drill bit splint, the pressure size that utilizes liquid to receive on each face when the pressurized is the same, and then make drill bit splint move to the inboard and grasp the drill bit, for the mode of current wrench type chuck or morbid reducing sleeve centre gripping, the operation is comparatively simple and convenient and clamping-force is great, make it adapt to the drill bit of different specifications size effectively simultaneously, and then improved the application scope of this drill jig effectively, and work efficiency when changing the drill bit is higher.

2. This fluid pressure type drill jig to the clamping sleeve, the setting that is filled with shear thickening liquid among the cavity that sealing sleeve and pressure piston constitute for when utilizing pressure piston extrusion and driving drill bit splint centre gripping drill bit, under its high-speed rotation, make shear thickening liquid can become solid-like, and not taking place the phenomenon of flowing, make the drill bit atress difficult emergence phenomenon of skidding when drilling, further improved the clamping-force of this drill jig.

Drawings

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

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is a top cross-sectional view of the inventive structure.

In the figure: 1. connecting rods are clamped; 2. a clamping sleeve; 3. fixing the connecting rod; 4. a clamping piston; 5. a drill bit clamping plate; 6. a sealing sleeve; 7. a pressure piston; 8. a pressure sleeve.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, a hydraulic drill jig includes a clamping connecting rod 1, a clamping sleeve 2 is fixedly mounted at the bottom end of the clamping connecting rod 1, a fixed connecting rod 3 is movably sleeved on the inner portion of the periphery of the clamping sleeve 2, a clamping piston 4 is fixedly connected to one end of the fixed connecting rod 3 and located on the periphery of the clamping sleeve 2, a drill clamping plate 5 is fixedly mounted at the other end of the fixed connecting rod 3 and located in an inner cavity of the clamping sleeve 2, a sealing sleeve 6 is fixedly mounted at the bottom end of the clamping sleeve 2, a pressure piston 7 is movably sleeved on the inner wall of the sealing sleeve 6 and located in the middle of the outer surface of the clamping connecting rod 1, and a pressure sleeve 8 is fixedly mounted at the top end of the pressure piston 7 and in threaded.

Wherein, to the setting of clamping sleeve 2, fixed connecting rod 3, clamp piston 4 and drill bit splint 5, the pressure size that utilizes liquid to receive on each face when the pressurized is the same, and then makes drill bit splint 5 move to the inboard and grasp the drill bit, for the mode of spanner formula chuck or the centre gripping of mo formula reducing sleeve, the operation is comparatively simple and convenient and clamping-force is great, at the in-process of drilling, makes the difficult phenomenon that takes place to skid of drill bit, and stability and reliability are higher.

In the technical scheme, shear thickening liquid is filled in an inner cavity formed by the clamping sleeve 2, the sealing sleeve 6 and the pressure piston 7.

Wherein, to the setting that is filled with shear thickening liquid among the cavity that clamping sleeve 2, seal sleeve 6 and pressure piston 7 constitute for when utilizing pressure piston 7 extrusion and driving drill bit splint 5 to centre gripping the drill bit, under its high-speed rotation, make shear thickening liquid can become solid-like, and not taking place the phenomenon that flows, make the drill bit atress difficult emergence phenomenon of skidding when drilling.

In this technical scheme, set up three groups on the clamping sleeve 2 surface and press from both sides the fan-shaped logical groove that the outside is the same of clamp piston 4, and fixed connecting rod 3 is the equidistance along the axis direction in fan-shaped logical groove and arranges.

The arrangement of the external structure of the clamping sleeve 2 enables the clamping piston 4 movably connected to the fixed connecting rod 3 to be stressed by shear thickening liquid to the largest extent and drive the bit clamping plate 5 above the clamping piston to move inwards, and therefore clamping force of the bit clamp is effectively improved.

In this technical scheme, the V type draw-in groove has been seted up on the other end of drill bit splint 5, and the V draw-in groove runs through to the upper and lower both ends of drill bit splint 5.

Wherein, to the setting of V type draw-in groove on the drill bit splint 5, can increase the area of contact between it and the drill bit handle effectively, and then make this drill bit anchor clamps be difficult for appearing the phenomenon of skidding at the in-process of centre gripping drill bit, simultaneously, make it can adapt to the drill bit of different specifications size effectively to the application scope of this drill bit anchor clamps has been improved.

In the technical scheme, the top end of the clamping connecting rod 1 is designed to be of a conical structure, and two surfaces of the top end of the conical structure of the clamping connecting rod 1 are respectively milled with a group of grooves of a curved structure.

The arrangement of the conical structure at the top end of the clamping connecting rod 1 enables the drill clamp to automatically form a moment retaining mechanism when being fixed on a lathe, when the drill clamp meets a hard object during the operation of clamping a drill, the whole drill clamp can slip to protect the drill, meanwhile, the friction force between the drill clamp and the lathe is increased, and the phenomenon of slipping is not easy to occur during the normal operation of the drill clamp.

The use method and the working principle of the embodiment are as follows:

firstly, a drill bit with proper specification and size is selected, then a drill bit shank extends from the inner cavity of the sealing sleeve 6 into the inner cavity of the clamping sleeve 2 to the top of the clamping sleeve 2 extending from the inner cavity of the sealing sleeve, then, the rotating pressure sleeve 8 drives the pressure piston 7 thereon to move downwards to compress the shear thickening liquid in the inner cavity thereof, so that the shear thickening liquid therein is pressurized to press the inner wall thereof, thereby extruding the clamping piston 4 to move inwards and driving the fixed connecting rod 3 and the drill bit clamping plate 5 which are fixedly arranged on the clamping piston to move inwards, so that one end of the drill bit clamping plate 5 is contacted with the outer surface of the drill bit handle part, meanwhile, the pressure sleeve 8 is continuously rotated until the pressure sleeve cannot rotate any more, then the whole drill clamp is clamped on a main shaft of a lathe by the clamping connecting rod 1, a part to be machined is fixed, and the lathe is started to realize the drilling machining operation on the part.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a fluid pressure type drill jig, includes joint connecting rod (1), its characterized in that: the utility model discloses a clamping sleeve's drill bit, including clamping sleeve (2), fixed connecting rod (3) have been cup jointed in the activity on the peripheral inside of clamping sleeve (2), the one end of fixed connecting rod (3) just is located peripheral fixedly connected with clamping piston (4) of clamping sleeve (2), and fixed connecting rod (3) the other end just is located fixed mounting has drill bit splint (5) among the inner chamber of clamping sleeve (2), the bottom fixed mounting of clamping sleeve (2) has sealed sleeve (6), pressure piston (7) have been cup jointed in the activity on the middle part of joint connecting rod (1) surface and the inner wall that is located sealed sleeve (6), the top fixed mounting of pressure piston (7) has pressure sleeve (8) with joint connecting rod (1) surface top threaded connection.

2. A fluid pressure drill chuck according to claim 1, wherein: and shear thickening liquid is filled in an inner cavity formed by the clamping sleeve (2), the sealing sleeve (6) and the pressure piston (7).

3. A fluid pressure drill chuck according to claim 1, wherein: three groups of fan-shaped through grooves which are the same as the outer portions of the clamping pistons (4) are formed in the outer surface of the clamping sleeve (2), and the fixed connecting rods (3) are arranged at equal intervals along the axis direction of the fan-shaped through grooves.

4. A fluid pressure drill chuck according to claim 1, wherein: the other end of the drill clamping plate (5) is provided with a V-shaped clamping groove, and the V-shaped clamping groove penetrates through the upper end and the lower end of the drill clamping plate (5).

5. A fluid pressure drill chuck according to claim 1, wherein: the top of joint connecting rod (1) is established to the toper structure, and it mills the recess of a set of bent structure respectively on the two sides at joint connecting rod (1) toper structure top.