CN218836889U

CN218836889U - Many specifications of removable type screw clamp

Info

Publication number: CN218836889U
Application number: CN202223558308.7U
Authority: CN
Inventors: 贾远; 王峰; 白新房; 何伟; 高阳; 杨平平; 杨军红
Original assignee: Xi'an Hantang Analysis Detection Co ltd
Current assignee: Xi'an Hantang Analysis Detection Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-04-11
Anticipated expiration: 2032-12-30

Abstract

The utility model discloses a many specifications of removable type screw anchor clamps, including the casing and can dismantle the retaining member that the cooperation is connected with the casing, set up the interior cavity that holds the nut on the casing, and be provided with the first spacing face with nut outer wall butt in the cavity, set up the casing through-hole coaxial with the screw hole of nut on the bottom surface of interior cavity, be provided with the driving lever on the outer wall of casing, set up the retaining member through-hole coaxial with the screw hole of nut on the retaining member. The utility model discloses a screw clamp rotates through setting up first spacing face restriction nut in the interior cavity of casing, is connected the axial motion of restriction nut through the cooperation of retaining member and casing, has realized screw clamp to the firm centre gripping of metal rod sample, simultaneously through the nut of changing different specifications, realizes the fixed centre gripping to different specification metal rod samples, has improved screw clamp's use convenience and life.

Description

Many specifications of removable type screw clamp

Technical Field

The utility model belongs to the technical field of the machine tool fixture, concretely relates to many specifications of removable type screw thread anchor clamps.

Background

The processing of the physical sample of the metal bar is an important detection index for testing the strength, plasticity and fatigue of the metal material, and is also an important basis for judging whether the material can be suitable for specific application.

The tool clamp is an indispensable part for processing metal materials, and along with the high-speed development of machine tools, the clamp technology is forward, efficient, universal, combined and economic. The two ends of the large physical sample of the metal bar are provided with threads, and the threaded part of the sample cannot be damaged when the second end threads and the middle working area are machined. Traditional screw thread anchor clamps are the welding formula, and different specification nuts all must weld, and the preparation is complicated, can not change, and high temperature welding can produce the harm to the nut profile and warp, fish tail screw surface, leads to the fatigue reduction of metal material physics sample.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that the not enough to above-mentioned prior art provides a many specifications of removable type screw anchor clamps. This screw clamp utilizes the nut through the fixed centre gripping metal bar sample of screw, through set up first spacing face restriction nut in the interior cavity of casing and rotate, and the axial motion of restriction nut is connected through the cooperation of retaining member and casing, has realized screw clamp to the firm centre gripping of metal bar sample, has avoided traditional welded fastening nut to its harm to warp the difficult problem that leads to metal bar sample external screw thread atress to damage.

In order to solve the technical problem, the utility model adopts the technical scheme that: the utility model provides a many specifications of removable type screw anchor clamps, its characterized in that, includes the casing and can dismantle the retaining member that the cooperation is connected with the casing, set up the interior cavity that holds the nut on the casing, and be provided with the first spacing face with nut outer wall butt in the cavity, set up the casing through-hole coaxial with the screw hole of nut on the bottom surface of interior cavity, be provided with the driving lever on the outer wall of casing, set up the retaining member through-hole coaxial with the screw hole of nut on the retaining member.

The replaceable multi-specification threaded clamp is characterized in that a pressing sleeve is further arranged between the nut and the inner cavity of the shell, a second limiting surface abutted against the first limiting surface is arranged on the outer wall of the pressing sleeve, and an inner hole matched with the outer wall of the nut is formed in the pressing sleeve.

The above-mentioned many specifications of removable type screw clamp, characterized in that, the retaining member is lock nut, and lock nut and casing pass through threaded connection.

The replaceable multi-specification threaded clamp is characterized in that the direction of the rod body of the deflector rod is opposite to the opening direction of the inner cavity.

Compared with the prior art, the utility model has the following advantage:

1. the utility model discloses a screw clamp utilizes the nut through the fixed centre gripping metal bar sample of screw thread, through set up first spacing face restriction nut in the interior cavity of casing and rotate, is connected the axial motion of restriction nut through the cooperation of retaining member and casing, has realized screw clamp to the firm centre gripping of metal bar sample, has avoided traditional welded fastening nut to its harm to warp the difficult problem that leads to metal bar sample external screw thread atress to damage.

2. The utility model discloses a screw thread anchor clamps realize the fixed centre gripping to different specification metal rod samples through the nut of changing different specifications, have improved screw thread anchor clamps's use convenience and life.

3. The utility model discloses a screw clamp presses the cover through setting up, utilizes the rotation in the cavity including the spacing face of second of pressing the cover and the interact restriction pressure cover of first spacing face, and then has limited the rotation in the cavity including the nut, has realized screw clamp to the firm centre gripping of the metal rod sample of undersize diameter, has solved because of the difficult problem of the unable accurate joint in the internal wall of casing in metal rod sample diameter undersize.

4. The utility model discloses a screw clamp has adapted to the metal rod sample of multiple diameter through the nut that sets up different specifications and the pressure cover that corresponds the specification, has promoted screw clamp's application scope.

5. The utility model discloses a screw clamp's simple structure, the clamping efficiency has been improved in the convenient to detach installation.

The technical solution of the present invention is further described in detail by the accompanying drawings and examples.

Drawings

Fig. 1 is an exploded view of a first structure of the replaceable multi-specification screw clamp of the present invention.

Fig. 2 is an exploded view of a second structure of the replaceable multi-specification screw clamp of the present invention.

Description of the reference numerals

1-a housing; 1-a first limit surface; 1-2-housing through-hole;

2-a deflector rod; 3, pressing a sleeve; 3-1-a second limiting surface;

3-2-inner hole; 4, a locking piece; 4-1-through hole of locking piece;

5-nut.

Detailed Description

Example 1

As shown in fig. 1, the replaceable multi-specification threaded clamp of the present embodiment includes a housing 1 and a locking member 4 detachably connected to the housing 1 in a matching manner, an inner cavity for accommodating a nut 5 is formed in the housing 1, a first limiting surface 1-1 abutted to an outer wall of the nut 5 is disposed in the inner cavity, a housing through hole 1-2 coaxial with a threaded hole of the nut 5 is formed in a bottom surface of the inner cavity, a shift lever 2 is disposed on an outer wall of the housing 1, and a locking member through hole 4-1 coaxial with the threaded hole of the nut 5 is formed in the locking member 4.

The multi-specification threaded clamp of the embodiment utilizes the shell 1 as a main body structure of the clamp, utilizes the nut 5 as a fixing structure, inserts a metal bar sample into a threaded hole of the nut 5, and is connected and fixed with the threaded hole of the nut 5 through the end part of the external thread of the metal bar sample, so as to realize the clamping and fixing of the metal bar sample, the shell 1 is provided with an inner cavity for accommodating the nut 5, so that the nut 5 is placed in the shell 1, and the bottom surface of the inner cavity is provided with a shell through hole 1-2 which is coaxial with the threaded hole of the nut 5, so as to facilitate the processing of one end of the metal bar sample which is fixed and clamped in the nut 5 through the threads through the shell through hole 1-2, and ensure that the nut 5 completely enters the inner cavity, the rotation of the nut 5 in the inner cavity is limited by arranging the first limiting surface 1-1 abutted to the outer wall of the nut 5 in the inner cavity and utilizing the resistance effect of the first limiting surface 1-1 on the outer wall of the nut 5, the locking piece 4 detachably matched and connected with the shell 1 is arranged, and the locking piece 4 is also provided with the locking piece through hole 4-1 coaxial with the threaded hole of the nut 5, so that the other end of a metal bar sample fixedly clamped in the nut 5 extends out through the locking piece through hole 4-1, the processing is convenient, the locking piece 4 is matched and connected with the shell 1, the locking piece 4 is connected and covered on the inner cavity of the shell 1, the axial movement of the nut 5 in the inner cavity is limited, and the nut 5 is stably fixed in the inner cavity; in addition, this embodiment sets up driving lever 2 on the outer wall of casing 1, connects whole screw clamp on the lathe through driving lever 2 for follow-up processing to the metal bar sample of screw clamp centre gripping.

In conclusion, the threaded clamp of the embodiment is used for accommodating the nut 5 for fixing and clamping the metal bar sample through the threads by arranging the inner cavity in the shell 1, the first limiting surface in the inner cavity is used for limiting the rotation of the nut 5, the locking piece 4 is used for being matched with the shell 1 to limit the axial movement of the nut 5, and the nut 5 is fixed, so that the metal bar sample is stably clamped by the threaded clamp, the problem that the external threads of the metal bar sample are damaged due to the damage and deformation of the traditional welding and fixing nut is solved, the accuracy of the detection result of the metal bar sample is improved, meanwhile, the threaded clamp of the embodiment is provided with the inner cavity to further fix the nut 5, the nuts 5 with different specifications can be replaced by the aid of the nuts 5 with different threaded hole diameters, the fixed clamping of the metal bar samples with different specifications, the nuts 5 with different diameters are conveniently replaced after the nuts 5 are damaged, and the use convenience and the service life of the threaded clamp are improved.

Generally, the first limiting surface in the cavity of the housing 1 of this embodiment is a combination of two or more surfaces, and the rotation limiting effect of the combined first limiting surface is better. Further, the shape of the first limiting surface is designed to be similar to that of the nut 5, so that the rotation limiting effect is better guaranteed.

As shown in fig. 2, further, a pressing sleeve 3 is further arranged between the nut 5 and the inner cavity of the housing 1, a second limiting surface 3-1 abutting against the first limiting surface 1-1 is arranged on the outer wall of the pressing sleeve 3, and an inner hole 3-2 matched with the outer wall of the nut 5 is formed in the pressing sleeve 3. The nut 5 in this embodiment is usually a standard component, and when the diameter of the metal bar sample is too small, the size of the nut 5 becomes small, so that the nut 5 can be accommodated in the inner cavity of the housing 1, but the nut 5 cannot be accurately clamped in the inner wall of the inner cavity due to the too small size, so that the first limiting surface 1-1 loses the limiting effect on the nut 5, and the nut 5 rotates or moves in the inner cavity, so that the screw clamp cannot fixedly clamp the metal bar sample. In order to solve the problem, in the embodiment, the pressing sleeve 3 is arranged and installed between the nut 5 and the inner cavity of the shell 1, a gap between the nut 5 and the inner cavity is filled, meanwhile, an inner hole 3-2 matched with the outer wall of the nut 5 is formed in the pressing sleeve 3, the nut 5 is stably accommodated by the inner hole 3-2, one end of a metal bar sample clamped in the nut 5 is fixed through threads and extends out through the inner hole 3-2, and the processing is convenient, namely, the nut 5 is placed in the pressing sleeve 3, the pressing sleeve 3 is placed in the inner cavity of the shell 1, a second limiting surface 3-1 abutted to the first limiting surface 1-1 is arranged on the outer wall of the pressing sleeve 3, and the rotation of the pressing sleeve 3 in the inner cavity is limited by the resistance effect of the first limiting surface 1-1 in the inner cavity to the second limiting surface 3-1, so that the rotation of the nut 5 in the inner cavity is limited, and the stable clamping of the threaded clamp to the metal bar sample with an excessively small diameter is realized.

In general, in the screw clamp of the present embodiment, the nuts 5 of the same specification are provided in multiple specifications in the housing 1, and each specification of the nuts 5 is provided with the pressing sleeve 3 having the inner hole 3-2 of the corresponding specification. Through setting up the nut 5 of different specifications to and the pressure cover 3 that corresponds the specification, adapted to the metal rod sample of multiple diameter, promoted screw clamp's application scope.

Further, the locking member 4 is a locking nut, and the locking nut is connected with the housing 1 through a thread. The locking piece 4 is arranged as the locking nut in the embodiment, and the locking nut is connected with the shell 1 through threads, so that the locking nut is convenient to disassemble and assemble, and the use of the threaded clamp is further facilitated.

Further, the rod body direction of the shift lever 2 is opposite to the opening direction of the inner cavity. Whole screw clamp in this embodiment is connected through driving lever 2 and is used for realizing the processing to the metal bar sample on the lathe, and the body of rod direction through setting up driving lever 2 is opposite with the opening direction of interior cavity, and the opening direction of the interior cavity of screw clamp is opposite with the centre gripping direction of lathe promptly, and towards the outside of lathe, operating space is bigger, has made things convenient for among the screw clamp dismantling and the change of retaining member 4, nut 5 and pressure cover 3.

The utility model discloses screw clamp's use does: connecting and fixing a metal bar sample with a threaded hole of a nut 5 through the end part of an external thread of the metal bar sample, placing the nut 5 fixedly clamped with the metal bar sample into an inner cavity of a shell 1, enabling the outer wall of the nut 5 to be abutted against a first limiting surface 1-1, then connecting and fixing a locking piece 4 with the shell 1, and enabling the other end of the metal bar sample to extend out through a locking piece through hole 4-1 to obtain an assembled threaded clamp;

when the diameter of the metal bar sample is too small, a nut 5 fixedly clamping the metal bar sample is placed in an inner hole 3-2 of a pressing sleeve 3, one end of the metal bar sample extends out of the inner hole 3-2, then the metal bar sample and the inner hole are placed into an inner cavity of a shell 1 together, a second limiting surface 3-1 of the pressing sleeve 3 is abutted against a first limiting surface 1-1, a locking piece 4 is fixedly connected with the shell 1, and one end of the metal bar sample extending out of the inner hole 3-2 extends out of a locking piece through hole 4-1, so that an assembled threaded clamp is obtained;

the method comprises the steps of clamping an assembled threaded fixture on a three-jaw chuck of a machine tool, arranging a driving lever 2 of the threaded fixture between two jaws of the three-jaw chuck, arranging a left center at the center of the three-jaw chuck, arranging a right center at the end of the opposite tailstock of the machine tool, enabling the left center to penetrate through a shell through hole 1-2 to abut against a prefabricated center hole at the left end of a metal bar sample in a shell 1, enabling the right center to abut against the prefabricated center hole at the right end of the metal bar sample extending out of a locking part through hole, starting to perform machining on the metal bar sample, driving the driving lever 2 and further driving the shell 1 to rotate by rotating the three-jaw chuck, and performing machining on the metal bar sample at different positions and angles along the end face of the metal bar sample.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way. Any simple modifications, changes and equivalent changes made to the above embodiments according to the technical spirit of the present invention all fall within the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a many specifications of removable type screw clamp, its characterized in that, including casing (1) and with casing (1) can dismantle retaining member (4) that the cooperation is connected, set up the interior cavity that holds nut (5) on casing (1), and be provided with in the interior cavity with first spacing face (1-1) of nut (5) outer wall butt, set up on the bottom surface of interior cavity with the coaxial casing through-hole (1-2) of screw hole of nut (5), be provided with driving lever (2) on the outer wall of casing (1), set up retaining member through-hole (4-1) coaxial with the screw hole of nut (5) on retaining member (4).

2. The replaceable multi-specification threaded clamp as claimed in claim 1, wherein a pressing sleeve (3) is further arranged between the nut (5) and the inner cavity of the shell (1), a second limiting surface (3-1) abutted against the first limiting surface (1-1) is arranged on the outer wall of the pressing sleeve (3), and an inner hole (3-2) matched with the outer wall of the nut (5) is formed in the pressing sleeve (3).

3. An exchangeable multi-gauge threaded clamp according to claim 1, characterized in that the locking element (4) is a locking nut and the locking nut is in threaded connection with the housing (1).

4. An exchangeable multi-gauge screw clamp according to claim 1, characterized in that the stem of said driver (2) is oriented opposite to the opening of the inner cavity.