CN216176908U - High-precision hardware fitting - Google Patents

Abstract

The utility model discloses a high-precision hardware fitting which comprises an outer sleeve, wherein the top of the outer sleeve is fixedly connected with a square block, the outer surface of the outer sleeve is provided with a rectangular groove, the inner wall of the rectangular groove is rotatably connected with a rotating block through a rotating shaft, the side surface of the rotating block is provided with a contact block, the outer surface of the outer sleeve is fixedly connected with an external thread sleeve, the outer surface of the external thread sleeve is in threaded connection with a locking sleeve, the bottom end of the locking sleeve is fixedly connected with an inner conical hole sleeve, and the inner top wall of the outer sleeve is provided with a limiting mechanism. This high-accuracy hardware fitting through the rotation of lock sleeve, makes interior taper hole sleeve pipe extrusion turning block to make the contact block of six turning block sides with the drill bit clamping fixation, thereby can carry out the centre gripping to the drilling of different specifications, and it is more laborsaving to change the drill bit, and it is more convenient to use, six turning block centre gripping simultaneously, make the drill bit more concentric, centre gripping precision is higher.

Description

High-precision hardware fitting

Technical Field

The utility model relates to the technical field of hardware fittings, in particular to a high-precision hardware fitting.

Background

The reducing drill bit cover is the most frequently used hardware fitting of drilling machine, and it utilizes inside taper hole to carry out the centre gripping to crank fluted bit, utilizes the inside square groove of taper hole to carry on spacingly to the drill bit simultaneously.

At present, the reducing drill bit sleeve is a reducing drill bit sleeve of a batch of specifications, and the workshop uses the drill bit to have multiple models, consequently needs the reducing drill bit sleeve of multiple different specifications, and the drill bit sleeve adopts the mode of joint to connect simultaneously, needs useless very big power when changing the drill bit, based on this, needs to provide further improvement.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a high-precision hardware fitting to solve the problems that a workshop needs to prepare drill bit sleeves with various corresponding specifications and the drill bit replacement process is labor-consuming and inconvenient to use due to different drill bit specifications in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a high-accuracy hardware fitting, includes the outer tube, the top fixedly connected with square of outer tube, the rectangular channel has been seted up to the surface of outer tube, and the inner wall of rectangular channel rotates through the pivot and is connected with the turning block, the side of turning block is provided with the contact piece, the outer fixed surface of outer tube is connected with the external screw thread sleeve pipe, the sheathed tube surface threaded connection of external screw thread has the lock sleeve, the conical hole sleeve pipe in the bottom fixedly connected with of lock sleeve, the interior roof of outer tube is provided with stop gear.

Preferably, the number of the rectangular grooves and the number of the rotating blocks are six, and the six rectangular grooves are arranged on the outer surface of the outer sleeve in a circumferential array.

Preferably, a step hole is formed in the side face of the rotating block, an inner hexagon bolt is arranged on the inner wall of the step hole, a thread groove matched with the inner hexagon bolt is formed in the side face of the contact block, and a plurality of tooth grooves are formed in the side face of the contact block.

Preferably, the inner wall of the inner tapered bore sleeve overlaps the side of the rotating block.

Preferably, stop gear is including seting up the rectangular hole of roof in the outer tube, the inner wall sliding connection of rectangular hole has the rectangle to press from both sides the post, the inside wall of rectangular hole is rotated through the bearing and is connected with the screw rod, the one end of screw rod extends to the surface and the fixedly connected with hexagonal piece of outer tube.

Preferably, the number of the limiting mechanisms is two, and the two limiting mechanisms are symmetrically arranged on the inner wall of the outer sleeve.

Preferably, the outer surface cover of outer tube is equipped with compression spring, compression spring's both ends overlap joint with the interior roof of lock sleeve and the top of external screw thread sleeve pipe respectively.

Preferably, three threaded holes are formed in the outer surfaces of the locking sleeve and the outer sleeve in an equal circumferential and equal distance mode, the inner wall of each threaded hole is in threaded connection with a locking rod, and one end of each locking rod is fixedly connected with a protection ball.

Compared with the prior art, the utility model has the beneficial effects that: the high-precision hardware fitting is convenient;

(1) the rotary blocks are extruded by the inner conical hole sleeve through the rotation of the locking sleeve, and the drill bit is clamped and fixed by the contact blocks on the side surfaces of the six rotary blocks, so that drill holes of different specifications can be clamped, the drill bit is more labor-saving to replace and more convenient to use, and meanwhile, the six rotary blocks are clamped simultaneously, so that the drill bits are more concentric, and the clamping precision is higher;

(2) through the rotation of hexagonal piece, the screw rod of being convenient for drives the rectangle and presss from both sides the post and remove, presss from both sides the effect of post at two rectangles and under, carries out the centre gripping to the square limit structure in crank twist drill bit top to supplementary carry out the centre gripping to the drill bit, to preventing that the drill bit from rotating the condition that causes the contact block wearing and tearing simultaneously.

Drawings

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

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

FIG. 2 is a schematic bottom perspective view of the present invention;

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

FIG. 4 is a schematic bottom view of the present invention;

fig. 5 is a schematic front sectional view of the turning block of the present invention.

The reference numerals in the figures illustrate: 1. an outer sleeve; 2. a square block; 3. rotating the block; 4. a contact block; 5. an externally threaded sleeve; 6. a locking sleeve; 7. an internally tapered bore sleeve; 8. a hexagon socket head cap screw; 9. a rectangular clamping column; 10. a screw; 11. a hexagonal block; 12. a compression spring; 13. a locking lever; 14. and (4) a protective ball.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without any inventive step, are within the scope of the present invention.

Referring to fig. 1-5, an embodiment of the present invention is shown: a high-precision hardware fitting comprises an outer sleeve 1, wherein the top of the outer sleeve 1 is fixedly connected with a square block 2, the outer surface of the outer sleeve 1 is provided with a rectangular groove, the inner wall of the rectangular groove is rotatably connected with a rotating block 3 through a rotating shaft, the number of the rectangular groove and the rotating block 3 is six, the six rectangular grooves are arranged on the outer surface of the outer sleeve 1 in a circumferential array mode, the side surface of the rotating block 3 is provided with a contact block 4, the side surface of the rotating block 3 is provided with a step hole, the inner wall of the step hole is provided with an inner hexagonal bolt 8, the side surface of the contact block 4 is provided with a thread groove matched with the inner hexagonal bolt 8, and the side surface of the contact block 4 is provided with a plurality of tooth grooves;

specifically, as shown in fig. 1, 2, 3 and 5, when in use, the contact block 4 is conveniently detached through the hexagon socket head cap screw 8, so that the contact block 4 which is easy to wear is replaced, the problem of high maintenance cost caused by overall replacement is solved, and the friction force of the contact block 4 contacting with a drill bit is conveniently increased through the arrangement of the tooth grooves;

the outer surface of the outer sleeve 1 is fixedly connected with an outer thread sleeve 5, the outer surface of the outer thread sleeve 5 is in threaded connection with a locking sleeve 6, the outer surface of the outer sleeve 1 is sleeved with a compression spring 12, two ends of the compression spring 12 are respectively in lap joint with the inner top wall of the locking sleeve 6 and the top end of the outer thread sleeve 5, the bottom end of the locking sleeve 6 is fixedly connected with an inner conical hole sleeve 7, and the inner wall of the inner conical hole sleeve 7 is in lap joint with the side face of the rotating block 3;

specifically, as shown in fig. 1, 2 and 3, when the drill bit is used, the inner conical hole sleeve 7 extrudes the rotating block 3 through the rotation of the locking sleeve 6, and the six contact blocks 4 are in contact with the crank twist drill bit and clamped and fixed, so that the drill bits of different specifications can be clamped, the drill bits can be assembled and disassembled more conveniently, the rotating amplitudes of the six rotating blocks 3 are consistent, the clamping concentricity of the drill bits is effectively improved, the drill holes are more precise, and the anti-loosening purpose is achieved through the compression spring 12;

the outer surfaces of the locking sleeve 6 and the outer sleeve 1 are provided with three threaded holes at equal intervals in the circumferential direction, the inner walls of the threaded holes are in threaded connection with a locking rod 13, and one end of the locking rod 13 is fixedly connected with a protective ball 14;

specifically, as shown in fig. 1, 3 and 3, when in use, the locking rod 13 is used for facilitating the rotation of the locking sleeve 6, so that the labor is saved, and meanwhile, the detachable structure can avoid interference on drilling;

the inner top wall of the outer sleeve 1 is provided with two limiting mechanisms, the two limiting mechanisms are symmetrically arranged on the inner wall of the outer sleeve 1, each limiting mechanism comprises a rectangular hole formed in the inner top wall of the outer sleeve 1, the inner wall of each rectangular hole is connected with a rectangular clamping column 9 in a sliding mode, the inner side wall of each rectangular hole is rotatably connected with a screw rod 10 through a bearing, and one end of each screw rod 10 extends to the outer surface of the outer sleeve 1 and is fixedly connected with a hexagonal block 11;

specifically, as shown in fig. 3 and 4, when the tool is used, the screw 10 drives the rectangular clamping column 9 to move through the rotation of the hexagonal block 11, the step surface clamped above the drill bit is limited, the drill bit is prevented from rotating, and meanwhile, the contact block 4 is also protected and is prevented from being abraded.

The working principle is as follows: when the crank twist drill is used, the crank twist drill is firstly inserted into the outer sleeve 1, meanwhile, the step groove above the crank twist drill is opposite to the direction of the rectangular clamping column 9, then, the two locking rods 13 are respectively screwed in the threaded holes on the outer surfaces of the outer sleeve 1 and the locking sleeve 6, then, the two locking rods 13 are rotated, the locking sleeve 6 and the outer sleeve 1 rotate relatively to enable the inner conical hole sleeve 7 to move downwards and extrude the rotating block 3, the six contact blocks 4 clamp the crank twist drill, and then, the locking rods 13 are screwed down;

then, sequentially rotating the two hexagonal blocks 11 to enable the screw 10 to drive the rectangular clamping column 9 to be in contact with the top of the crank twist drill, and limiting the upper part of the crank twist drill;

when the drill bit needs to be replaced, the locking sleeve 6 is rotated to ascend, and then the hexagonal block 11 is rotated to separate the rectangular clamping column 9 from the surface of the drill bit, so that the drill bit can be taken down for replacement.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (8)

1. The utility model provides a high-accuracy hardware fitting, includes outer tube (1), its characterized in that: the top fixedly connected with square (2) of outer tube (1), the rectangular channel has been seted up to the surface of outer tube (1), and the inner wall of rectangular channel rotates through the pivot and is connected with turning block (3), the side of turning block (3) is provided with contact piece (4), the fixed surface of outer tube (1) is connected with external screw thread sleeve pipe (5), the surface threaded connection of external screw thread sleeve pipe (5) has lock sleeve (6), the bottom fixedly connected with of lock sleeve (6) interior tapered bore sleeve pipe (7), the interior roof of outer tube (1) is provided with stop gear.

2. A high-precision hardware fitting according to claim 1, characterized in that: the number of the rectangular grooves and the number of the rotating blocks (3) are six, and the six rectangular grooves are arranged on the outer surface of the outer sleeve (1) in a circumferential array mode.

3. A high-precision hardware fitting according to claim 1, characterized in that: the side of turning block (3) has been seted up the step hole, and the inner wall in step hole is provided with hexagon socket head cap screw (8), the thread groove with hexagon socket head cap screw (8) adaptation is seted up to the side of contact piece (4), a plurality of tooth's socket has been seted up to the side of contact piece (4).

4. A high-precision hardware fitting according to claim 1, characterized in that: the inner wall of the inner conical hole sleeve (7) is in lap joint with the side face of the rotating block (3).

5. A high-precision hardware fitting according to claim 1, characterized in that: stop gear is including seting up the rectangular hole of roof in outer tube (1), the inner wall sliding connection in rectangular hole has the rectangle to press from both sides post (9), the inside wall in rectangular hole rotates through the bearing and is connected with screw rod (10), the one end of screw rod (10) extends to the surface and the fixedly connected with hexagonal piece (11) of outer tube (1).

6. A high-precision hardware fitting according to claim 1, characterized in that: the number of the limiting mechanisms is two, and the two limiting mechanisms are symmetrically arranged on the inner wall of the outer sleeve (1).

7. A high-precision hardware fitting according to claim 1, characterized in that: the outer surface cover of outer tube (1) is equipped with compression spring (12), the both ends of compression spring (12) overlap joint with the top of interior roof and external screw thread sleeve pipe (5) of lock sleeve (6) respectively.

8. A high-precision hardware fitting according to claim 1, characterized in that: the equal circumference equidistance of surface of lock sleeve (6) and outer tube (1) has seted up three screw hole, and the inner wall threaded connection of screw hole has check lock lever (13), the one end fixedly connected with protective ball (14) of check lock lever (13).

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