CN216065683U

CN216065683U - Drilling clamp with stable clamping effect

Info

Publication number: CN216065683U
Application number: CN202122535713.6U
Authority: CN
Inventors: 陈诚; 王晓蓉
Original assignee: Chongqing Autumn City Mechanical And Electrical Equipment Manufacturing Co ltd
Current assignee: Chongqing Autumn City Mechanical And Electrical Equipment Manufacturing Co ltd
Priority date: 2021-10-21
Filing date: 2021-10-21
Publication date: 2022-03-18
Anticipated expiration: 2031-10-21

Abstract

The utility model discloses a drilling clamp with stable clamping effect, which comprises a bottom plate and a pressing plate, wherein the bottom plate is connected with a mandrel through a stepped hole, the bottom plate is connected with a supporting seat, the supporting seat is positioned below the mandrel, the outer side of the supporting seat is connected with a sliding block, the outer side of the sliding block of the supporting seat is connected with a cover plate, and the cover plate is connected with the supporting seat through an external bolt; the sliding block is T-shaped, a knurled nut is connected below the sliding block through a threaded hole at the bottom, and the supporting seat is provided with a sliding groove matched with the sliding block; the center of the mandrel is provided with a through hole and a locking threaded hole which are concentrically distributed, the mandrel is connected with a double-head locking screw rod through the locking threaded hole, two ends of the double-head locking screw rod are respectively connected with a locking nut, the locking nut on one side is in contact with the mandrel, the locking nut on the other side is in contact with the pressing plate, and the outer ring of the mandrel is connected with a gasket.

Description

Drilling clamp with stable clamping effect

Technical Field

The utility model belongs to the technical field of clamps, and particularly relates to a drilling clamp with stable clamping effect.

Background

Some connecting seats are provided with annular seat bodies and ring plates distributed on the circumferential outer walls of the seat bodies, usually, the connecting seats need to be provided with connecting holes on the ring plates in order to provide a connecting structure, but due to the shape and the structure of the connecting seats, when the connecting seats are clamped, a common clamping device cannot play a good role easily, so that the connecting seats slightly vibrate during machining, and the precision of the machined connecting holes is not high;

as shown in fig. 1, the connecting seat K itself is annular, two ring plates are further arranged on the outer wall of the annular circumference, the connecting seat K itself has a circular inner cavity K1, and a plurality of connecting holes are formed in the two ring plates.

SUMMERY OF THE UTILITY MODEL

In view of the problems raised by the above background art, the present invention is directed to: aims to provide a drilling clamp with stable clamping effect.

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

a drilling clamp with stable clamping effect comprises a bottom plate and a pressing plate, wherein the bottom plate is connected with a mandrel through a stepped hole, the bottom plate is connected with a supporting seat, the supporting seat is positioned below the mandrel, a sliding block is connected to the outer side of the supporting seat, a cover plate is connected to the outer side of the sliding block of the supporting seat, and the cover plate is connected with the supporting seat through an outer bolt;

the sliding block is T-shaped, a knurled nut is connected to the lower portion of the sliding block through a threaded hole in the bottom of the sliding block, and the supporting seat is provided with a sliding groove matched with the sliding block;

the center department of mandrel is equipped with concentric through-hole and the locking screw hole that distributes, the mandrel is connected with double-end locking screw through the locking screw hole, the both ends of double-end locking screw all are connected with lock nut, one side lock nut and mandrel contact, opposite side lock nut and clamp plate contact, the outer lane of mandrel is connected with the packing ring.

Further limiting, the stepped hole is provided with an inner hole with a smaller diameter and an outer hole with a larger diameter, the outer hole is provided with a plurality of semicircular upper assembling holes which are uniformly distributed, the mandrel is provided with a plurality of semicircular lower assembling holes which are uniformly distributed and can be matched with the upper assembling holes, the mandrel is installed in the stepped hole and is fixed through an upper cylindrical pin, and the upper cylindrical pin is installed in a space formed by the upper assembling holes and the lower assembling holes.

The bottom plate is provided with an outer positioning pin hole and a front threaded hole, the supporting seat is provided with an inner positioning pin hole matched with the outer positioning pin hole and a rear threaded hole matched with the front threaded hole, the bottom plate is connected with the supporting seat through an inner bolt, the inner bolt is positioned in a space formed by the front threaded hole and the rear threaded hole, a lower cylindrical pin is further connected between the bottom plate and the supporting seat and positioned in a space formed by the outer positioning pin hole and the inner positioning pin hole, the structural design provides an installation space of the inner bolt through the front threaded hole and the rear threaded hole, the installation space of the lower cylindrical pin is provided through the outer positioning pin hole and the inner positioning pin hole, the supporting seat is fastened through the inner bolt, the supporting seat is positioned through the lower cylindrical pin, and meanwhile, the supporting seat is prevented from shaking.

Further inject, the corner of spout is equipped with the hole of stepping down, and such structural design appears interfering in the corner when avoiding slider and spout assembly through the hole of stepping down.

Further inject, the clamp plate is equipped with waist shape breach, the width and the diameter phase-match of double-end locking screw in waist shape breach, such structural design is convenient for take out or put into double-end locking screw in the clamp plate through waist shape breach.

The utility model has the beneficial effects that:

1. in the clamping process, because the freedom of connecting seat K fore-and-aft direction and the freedom of circumference are all restricted, consequently under the centre gripping of anchor clamps for drilling, connecting seat K possesses higher stability to when having avoided drilling, take place vibrations, improved the machining precision of connecting hole.

Drawings

The utility model is further illustrated by the non-limiting examples given in the accompanying drawings;

FIG. 1 is a schematic structural view of a connecting seat K;

FIG. 2 is a schematic structural view of an embodiment of a drilling jig with stable clamping effect according to the present invention, when the drilling jig is coupled to a connecting seat K;

FIG. 3 is a schematic structural diagram of a bottom plate in an embodiment of a stable clamping effect drilling jig of the present invention;

FIG. 4 is a schematic structural diagram of a mandrel in an embodiment of a stable clamping type drilling jig according to the present invention;

FIG. 5 is a schematic structural diagram of a support seat in an embodiment of a stable clamping effect drilling jig according to the present invention;

FIG. 6 is a schematic structural diagram of a pressing plate in an embodiment of a stable-clamping drilling jig according to the present invention;

FIG. 7 is a schematic structural diagram of a sliding block in an embodiment of a stable clamping effect drilling jig according to the present invention;

the main element symbols are as follows:

the structure comprises a bottom plate 1, a stepped hole 101, a front threaded hole 102 and an outer positioning pin hole 103;

the mandrel 2, a through hole 201, a locking threaded hole 202 and a lower assembling hole 203;

an outer bolt 3 and a washer 4;

the support seat 5, a rear threaded hole 501, a sliding groove 503 and a yielding hole 504;

the sliding block 6 and a bottom threaded hole 601;

a cover plate 7 and a knurled nut 8;

a pressing plate 9 and a waist-shaped notch 901;

a double-end locking screw 10, a locking nut 12 and a lower cylindrical pin 14.

Detailed Description

In order that those skilled in the art can better understand the present invention, the following technical solutions are further described with reference to the accompanying drawings and examples.

As shown in fig. 2-7, the drilling jig with stable clamping effect of the present invention comprises a bottom plate 1 and a pressing plate 9, wherein the bottom plate 1 is connected with a mandrel 2 through a stepped hole 101, the bottom plate 1 is connected with a supporting seat 5, the supporting seat 5 is located below the mandrel 2, the outer side of the supporting seat 5 is connected with a sliding block 6, the supporting seat 5 is connected with a cover plate 7 on the outer side of the sliding block 6, and the cover plate 7 is connected with the supporting seat 5 through an outer bolt 3;

the sliding block 6 is T-shaped, a knurled nut 8 is connected below the sliding block 6 through a bottom threaded hole 601, and the supporting seat 5 is provided with a sliding groove 503 matched with the sliding block 6;

the center of the mandrel 2 is provided with a through hole 201 and a locking threaded hole 202 which are concentrically distributed, the mandrel 2 is connected with a double-head locking screw 10 through the locking threaded hole 202, two ends of the double-head locking screw 10 are both connected with locking nuts 12, the locking nut 12 on one side is in contact with the mandrel 2, the locking nut 12 on the other side is in contact with a pressure plate 9, and the outer ring of the mandrel 2 is connected with a gasket 4.

In the implementation scheme, the circular cavity K1 of the connecting seat K is matched with the mandrel 2, the gasket 4 is positioned between the connecting seat K and the mandrel 2, the gasket 4 prevents the connecting seat K from being locked, the assembling surface is damaged by pressure, one side of the double-head locking screw rod 10 is screwed with the locking nut 12, the pressing plate 9 is sleeved on the other side of the double-head locking screw rod 10, the double-head locking screw rod 10 is screwed, the double-head locking screw rod 10 is matched with the locking threaded hole 202, and is continuously screwed in until the locking nut 12 at one side is contacted with the mandrel 2, the double-end locking screw 10 can not be screwed in any more, the lock nut 12, which was previously screwed in, regulates the stroke of the double-ended lock screw 10, and the lock nut 12, which was screwed in the other end, the locking nut 12 screwed in at the back is screwed in continuously and pressed to the pressure plate 9, so that the pressure plate 9 presses the connecting seat K, and the connecting seat K is pressed at the moment, but the circumferential direction of the connecting seat K has the degree of freedom;

therefore, the up-and-down position of the sliding block 6 in the sliding groove 503 is adjusted, so that the T-shaped sliding block 6 is abutted against the lower part of the connecting seat K, the circumferential freedom degree of the connecting seat K is limited, in the process, the existence of the knurled nut 8 is convenient for holding and moving the sliding block 6, the sliding block 6 is pressed by the cover plate 7, and the sliding block 6 cannot move after being in place;

in whole centre gripping in-process, because the degree of freedom of connecting seat K fore-and-aft direction and the degree of freedom of circumference all are restricted, consequently under the centre gripping of anchor clamps for drilling, connecting seat K possesses higher stability to when having avoided drilling, take place vibrations, improved the machining precision of connecting hole.

Preferably, the stepped hole 101 is provided with an inner hole with a smaller diameter and an outer hole with a larger diameter, the outer hole is provided with a plurality of semicircular upper assembling holes which are uniformly distributed, the mandrel 2 is provided with a plurality of semicircular lower assembling holes 203 which are uniformly distributed and can be matched with the upper assembling holes, the mandrel 2 is installed in the stepped hole 101 and is fixed through the upper cylindrical pin 13, the upper cylindrical pin 13 is installed in a space formed by the upper assembling holes and the lower assembling holes 203, the structural design provides an installation space for the cylindrical pin 13 through the upper assembling holes and the lower assembling holes 203, and the mandrel 2 is extruded and fixed through the cylindrical pin 13. In fact, other structural designs of the spindle 2 fixed to the base plate 1 can be specifically considered according to the specific situation.

Preferably, the bottom plate 1 is provided with an outer positioning pin hole 103 and a front threaded hole 102, the support seat 5 is provided with an inner positioning pin hole matched with the outer positioning pin hole 103 and a rear threaded hole 501 matched with the front threaded hole 102, the bottom plate 1 and the support seat 5 are connected through an inner bolt 15, the inner bolt 15 is located in a space formed by the front threaded hole 102 and the rear threaded hole 501, a lower cylindrical pin 14 is further connected between the bottom plate 1 and the support seat 5, the lower cylindrical pin 14 is located in a space formed by the outer positioning pin hole 103 and the inner positioning pin hole, due to the structural design, the installation space of the inner bolt 15 is provided through the front threaded hole 102 and the rear threaded hole 501, the installation space of the lower cylindrical pin 14 is provided through the outer positioning pin hole 103 and the inner positioning pin hole, the support seat 5 is fastened through the inner bolt 15, the support seat 5 is positioned through the lower cylindrical pin 14, and the support seat 5 is prevented from shaking. In fact, other structural shapes for positioning and fixing the bottom plate 1 and the supporting seat 5 can be specifically considered according to specific situations.

Preferably, the corners of the sliding groove 503 are provided with the receding holes 504, and the structure is designed to avoid interference at the corners when the sliding block 6 is assembled with the sliding groove 503 through the receding holes 504. In fact, other structures that avoid the interference of the slide 6 in the sliding groove 503 can be specifically considered according to the specific situation.

Preferably, the pressure plate 9 is provided with a waist-shaped notch 901, the width of the waist-shaped notch 901 matches with the diameter of the double-end locking screw 10, and the double-end locking screw 10 is conveniently taken out of or put into the pressure plate 9 through the waist-shaped notch 901 due to the structural design. In fact, other configurations that facilitate the engagement of the double-ended locking screw 10 with the pressure plate 9 may be specifically contemplated depending on the particular situation.

The foregoing embodiments are merely illustrative of the principles of the present invention and its efficacy, and are not to be construed as limiting the utility model. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. The utility model provides a stable anchor clamps for drilling of centre gripping effect which characterized in that: the clamping device comprises a bottom plate (1) and a pressing plate (9), wherein the bottom plate (1) is connected with a mandrel (2) through a stepped hole (101), the bottom plate (1) is connected with a supporting seat (5), the supporting seat (5) is positioned below the mandrel (2), a sliding block (6) is connected to the outer side of the supporting seat (5), a cover plate (7) is connected to the outer side of the sliding block (6) of the supporting seat (5), and the cover plate (7) is connected with the supporting seat (5) through an outer bolt (3);

the sliding block (6) is T-shaped, a knurled nut (8) is connected to the lower portion of the sliding block (6) through a bottom threaded hole (601), and a sliding groove (503) matched with the sliding block (6) is formed in the supporting seat (5);

the center department of mandrel (2) is equipped with concentric through-hole (201) and the locking screw hole (202) that distribute, mandrel (2) are connected with double-end locking screw (10) through locking screw hole (202), the both ends of double-end locking screw (10) all are connected with lock nut (12), one side lock nut (12) and mandrel (2) contact, opposite side lock nut (12) and clamp plate (9) contact, the outer lane of mandrel (2) is connected with packing ring (4).

2. The drilling jig with stable clamping effect as claimed in claim 1, wherein: the stepped hole (101) is provided with an inner hole with a smaller diameter and an outer hole with a larger diameter, the outer hole is provided with a plurality of semicircular upper assembling holes which are uniformly distributed, the mandrel (2) is provided with a plurality of semicircular lower assembling holes (203) which are uniformly distributed and can be matched with the upper assembling holes, the mandrel (2) is installed in the stepped hole (101) and is fixed through the upper cylindrical pin (13), and the upper cylindrical pin (13) is installed in a space formed by the upper assembling holes and the lower assembling holes (203).

3. The drilling jig with stable clamping effect as claimed in claim 2, wherein: the bottom plate (1) is provided with an outer positioning pin hole (103) and a front threaded hole (102), the supporting seat (5) is provided with an inner positioning pin hole matched with the outer positioning pin hole (103) and a rear threaded hole (501) matched with the front threaded hole (102), the bottom plate (1) and the supporting seat (5) are connected through an inner bolt (15), the inner bolt (15) is located in a space formed by the front threaded hole (102) and the rear threaded hole (501), a lower cylindrical pin (14) is further connected between the bottom plate (1) and the supporting seat (5), and the lower cylindrical pin (14) is located in a space formed by the outer positioning pin hole (103) and the inner positioning pin hole.

4. The drilling jig with stable clamping effect as claimed in claim 3, wherein: and a yielding hole (504) is arranged at the corner of the sliding groove (503).

5. The stable anchor clamps for drilling of centre gripping effect of claim 4, characterized by: the pressing plate (9) is provided with a waist-shaped notch (901), and the width of the waist-shaped notch (901) is matched with the diameter of the double-head locking screw (10).