CN216669517U

CN216669517U - Clamping mechanism for stretcher

Info

Publication number: CN216669517U
Application number: CN202122949845.3U
Authority: CN
Inventors: 牛家玉; 牛家红; 牛瑞希
Original assignee: Jinan Houfeng Forging Co ltd
Current assignee: Jinan Houfeng Forging Co ltd
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2022-06-03
Anticipated expiration: 2031-11-29

Abstract

The utility model relates to the technical field of clamping mechanisms, in particular to a clamping mechanism for a stretcher, which comprises the following technical schemes: box, fixing base, first clamp splice, second clamp splice and screw rod, the pneumatic cylinder is installed in box one side embedding, the hydraulic cylinder stretches into the inside one end of box and installs the hydraulic stem, the hydraulic stem deviates from the one end of pneumatic cylinder and installs first bearing, the one end that first bearing deviates from the hydraulic stem rotates and installs the movable rod, the fixing base deviates from one side of movable rod and installs the slide rail, the screw has been seted up to first clamp splice, the screw rod is connected with the screw meshing, the jack has been seted up to one side that the second clamp splice is relative with first clamp splice, the screw rod bottom inserts inside the second clamp splice from the jack, fixed cover has been welded respectively at both ends around the box is inside, two fixed cover is the cylinder is installed in the embedding respectively. The utility model has the advantages of absorbing the torsion generated by the workpiece and avoiding the falling off of the excessive torsion of the workpiece from the clamping mechanism.

Description

Clamping mechanism for stretcher

Technical Field

The utility model relates to the technical field of clamping mechanisms, in particular to a clamping mechanism for a stretcher.

Background

A gripper mechanism is a mechanism that grips an object and thus manipulates the object, and is capable of gripping and releasing the object while performing some motion, and motion devices often mimic the motion of a human body, in the case of a gripper, the motion of fingers, which are not themselves part of the gripper, but are specialized custom tools for gripping objects, called "jaws".

Through a large amount of search discoveries, the Chinese utility model patent column: application No. CN202120189378.6, publication No.: CN214224758U discloses a tensile test clamping device for testing machine, including hydraulic press, grip slipper, L type centre gripping arm, control lever, connecting block and clamping part, the clamping part includes fixed block, stop gear, bolt, backing plate, spring and splint, the fixed block is articulated with L type centre gripping arm, the fixed block is one end open-ended cavity structure setting, stop gear is fixed continuous with the fixed block open end, the bolt afterbody slidable runs through stop gear and locates in the fixed block cavity, be equipped with the screw hole one that link up on the splint, the rotatable backing plate and the setting of screw hole that runs through of bolt head, the spring housing is located the bolt middle part, the spring is located between stop gear and the splint. The utility model belongs to the technical field of clamping devices, and particularly relates to a tensile test clamping device for a testing machine, which is stable in clamping, not easy to damage clamped articles and not easy to fall off a base plate.

In summary, when the device clamps a workpiece, the clamped workpiece is not easy to be damaged, the workpiece can generate torsion when being stretched, when the torsion is too large, the workpiece is easy to fall off from the clamping mechanism, and the device is not provided with a structure for eliminating the torsion.

SUMMERY OF THE UTILITY MODEL

The clamping mechanism for the drawing machine has the advantages of absorbing the torsion generated by the workpiece, avoiding the phenomenon that the workpiece falls off from the clamping mechanism due to overlarge torsion, and solving the problem that the workpiece falls off due to the fact that the traditional clamping mechanism is easily influenced by the torsion of the workpiece when drawing.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a fixture for stretcher, includes box, fixing base, first clamp splice, second clamp splice and screw rod, the pneumatic cylinder is installed in box one side embedding, the pneumatic cylinder stretches into the inside one end of box and installs the hydraulic stem, the hydraulic stem deviates from the one end of pneumatic cylinder and installs first bearing, the one end that first bearing deviates from the hydraulic stem rotates and installs the movable rod, the fixing base deviates from one side of movable rod and installs the slide rail, the screw has been seted up to first clamp splice, the screw rod is connected with the screw meshing, the jack has been seted up to second clamp splice and the relative one side of first clamp splice, the screw rod bottom inserts inside the second clamp splice from the jack, fixed cover, two have been welded respectively at both ends around the box is inside fixed cover is embedded to install the cylinder respectively.

Preferably, the box top is rotatably provided with a box door through a hinge, and one side of the box door, which deviates from the box body, is provided with a handle. Through the handle, can open the chamber door, place the work piece inside the box and operate.

Preferably, the four corners of the bottom of the box body are respectively provided with a base. Through the base, provide holding power for the box.

Preferably, one end of the movable rod, which is far away from the first bearing, is welded with the fixed seat. The fixing seat can be driven to rotate through the movable rod.

Preferably, the first clamping block and the second clamping block are connected with the fixed seat in a sliding mode through sliding rails, and the first clamping block and the second clamping block are parallel to each other on the sliding rails. One end of the workpiece can be clamped through the first clamping block and the second clamping block.

Preferably, two the air cylinder is relative one end and is installed the gas pole respectively, and splint are installed respectively to two gas pole relative one end. One end of the workpiece can be clamped through the clamping plate.

Preferably, the top parts of the two screws are provided with holding rods. The screw can be rotated by holding the rod.

Preferably, a second bearing is installed inside the two second clamping blocks, and one end of the screw rod extending into the second clamping blocks is rotatably connected with the second bearing. Through the second bearing, the second clamping block cannot rotate along with the screw rod when the screw rod is rotated.

Preferably, the hydraulic cylinder stretches into the inside front and back both sides of box and has welded the dead lever respectively, and one side that two dead levers deviate from the hydraulic cylinder respectively with box internal weld. Through the dead lever, can increase the connectivity of pneumatic cylinder and box, prevent that the pneumatic cylinder from taking place to rock.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the first bearing, the movable rod and the fixed seat are arranged, one end of a workpiece is clamped by the two cylinders through the two air rods and the two clamping plates, the holding rod is rotated to drive the screw rod to rotate in the screw hole of the first clamping block, the first clamping block and the second clamping block are subjected to relative motion by the rotation of the screw rod to clamp the other end of the workpiece, the hydraulic cylinder drives the fixed seat to move through the hydraulic rod to stretch the workpiece, the workpiece can generate moving torsion during stretching, the fixed seat transmits the torsion to the first bearing through the movable rod, and the effects of absorbing the torsion generated by the workpiece and avoiding the workpiece from falling off from the clamping mechanism due to overlarge torsion during stretching are achieved.

Drawings

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

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

FIG. 3 is a schematic top cross-sectional view of the present invention;

fig. 4 is a schematic cross-sectional structural view of the first clamping block and the second clamping block of the present invention.

In the figure: 1. a base; 2. a box body; 3. a hydraulic cylinder; 4. a box door; 5. a handle; 6. a hinge; 7. fixing the rod; 8. a hydraulic lever; 9. a first bearing; 10. a fixed seat; 11. a first clamping block; 12. fixing a sleeve; 13. a cylinder; 14. a splint; 15. a gas lever; 16. a second clamp block; 17. a movable rod; 18. a jack; 19. a slide rail; 20. a holding rod; 21. a screw hole; 22. a screw; 23. a second bearing.

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.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; 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 technical solution of the present invention is further explained with reference to the accompanying drawings and specific embodiments.

Example one

As shown in fig. 1-4, the clamping mechanism for a stretcher provided by the utility model comprises a box body 2, a fixed seat 10, a first clamping block 11, a second clamping block 16 and screws 22, wherein a box door 4 is rotatably installed at the top of the box body 2 through a hinge 6, a handle 5 is installed at one side of the box door 4, which is far away from the box body 2, bases 1 are respectively installed at four corners of the bottom of the box body 2, slide rails 19 are installed at one side of the fixed seat 10, which is far away from a movable rod 17, the first clamping block 11 is provided with screw holes 21, the screws 22 are meshed with the screw holes 21, holding rods 20 are installed at the tops of the two screws 22, insertion holes 18 are formed at one side of the second clamping block 16, which is opposite to the first clamping block 11, the bottoms of the screws 22 are inserted into the second clamping block 16 from the insertion holes 18, the first clamping block 11 and the second clamping block 16 are slidably connected with the fixed seat 10 through the slide rails 19, the first clamping block 11 and the second clamping block 16 are parallel to the slide rails 19, second clamping blocks 16 are internally provided with second bearings 23, one end of the screw 22 extending into the second clamping block 16 is rotatably connected with the second bearing 23, the front end and the rear end inside the box body 2 are respectively welded with the fixing sleeves 12, the two fixing sleeves 12 are respectively embedded with the air cylinder 13, and the air cylinder 13 is connected with an external air pump, as the air cylinder 13 is well known to those skilled in the art, the air cylinder 13 belongs to the conventional means or the common knowledge, and is not described herein any more, the skilled in the art can carry out any optional matching according to the needs or the convenience, the opposite ends of the two air cylinders 13 are respectively provided with the air rods 15, and the opposite ends of the two air rods 15 are respectively provided with the clamping plates 14.

The working principle based on the embodiment 1 is as follows: the box door 4 is opened through the handle 5, a workpiece is placed in the box body 2, the holding rod 20 rotates the screw rod 22, one end of the workpiece is placed on one side, opposite to the first clamping block 11 and the second clamping block 16, the screw rod 22 rotates in the screw hole 21 to drive the first clamping block 11 and the second clamping block 16 to move relatively on the sliding rail 19, one end of the workpiece is clamped, the two air cylinders 13 push the two clamping plates 14 through the two air rods 15 to clamp the other end of the workpiece, and the two clamping mechanisms firmly fix the workpiece in the box body 2.

Example two

As shown in fig. 1 to 4, compared with the first embodiment, the clamping mechanism for a stretching machine according to the present invention further includes: a hydraulic cylinder 3, a hydraulic rod 8 and a first bearing 9, wherein the hydraulic cylinder 3 is embedded and installed at one side of the box body 2, the hydraulic cylinder 3 is connected with an external hydraulic pump, as is known by persons skilled in the art, it belongs to conventional means or common general knowledge, it is no longer repeated here, technical personnel in the field can carry out arbitrary apolegamy according to its needs or facility, pneumatic cylinder 3 stretches into 2 inside front and back both sides of box and has welded dead lever 7 respectively, two dead levers 7 deviate from one side of pneumatic cylinder 3 respectively with 2 internal weld of box, hydraulic cylinder 3 stretches into 2 inside one ends of box and installs hydraulic stem 8, first bearing 9 is installed to the one end that hydraulic stem 8 deviates from pneumatic cylinder 3, first bearing 9 deviates from the one end rotation of hydraulic stem 8 and installs movable rod 17, movable rod 17 deviates from the one end and the fixing base 10 welding of first bearing 9.

In this embodiment, through hydraulic stem 8, pneumatic cylinder 3 drives fixing base 10 and removes, stretches the work piece, and the work piece can produce torsion when tensile, and fixing base 10 transmits torsion for first bearing 9 through movable rod 17, and the inner ring of first bearing 9 rotates, absorbs torsion, avoids torsion too big, leads to the work piece to drop from fixture.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a fixture for stretcher, includes box (2), fixing base (10), first clamp splice (11), second clamp splice (16) and screw rod (22), its characterized in that: the hydraulic cylinder (3) is installed in one side of the box body (2) in an embedded mode, the hydraulic cylinder (3) stretches into one end of the interior of the box body (2) and is provided with the hydraulic rod (8), one end of the hydraulic rod (8) deviating from the hydraulic cylinder (3) is provided with the first bearing (9), one end of the first bearing (9) deviating from the hydraulic rod (8) is rotated and is provided with the movable rod (17), one side of the fixing seat (10) deviating from the movable rod (17) is provided with the sliding rail (19), the first clamping block (11) is provided with the screw hole (21), the screw rod (22) is meshed and connected with the screw hole (21), one side of the second clamping block (16) opposite to the first clamping block (11) is provided with the insertion hole (18), the bottom of the screw rod (22) is inserted into the second clamping block (16) from the insertion hole (18), and fixed sleeves (12) are welded at the front end and the back end of the interior of the box body (2) respectively, and the two fixed sleeves (12) are respectively embedded with an air cylinder (13).

2. The clamping mechanism for the stretching machine as claimed in claim 1, wherein: the top of the box body (2) is rotatably provided with a box door (4) through a hinge (6), and one side of the box door (4) departing from the box body (2) is provided with a handle (5).

3. The clamping mechanism for the stretching machine as claimed in claim 1, wherein: the base (1) is installed respectively in box (2) bottom four corners department.

4. The clamping mechanism for the stretching machine as claimed in claim 1, wherein: one end of the movable rod (17) departing from the first bearing (9) is welded with the fixed seat (10).

5. The clamping mechanism for the stretching machine as claimed in claim 1, wherein: the first clamping block (11) and the second clamping block (16) are connected with the fixed seat (10) in a sliding mode through a sliding rail (19), and the first clamping block (11) and the second clamping block (16) are parallel to each other on the sliding rail (19).

6. The clamping mechanism for the stretching machine as claimed in claim 1, wherein: two gas pole (15) are installed respectively to cylinder (13) relative one end, and splint (14) are installed respectively to two gas pole (15) relative one end.

7. The clamping mechanism for the stretching machine as claimed in claim 1, wherein: the top parts of the two screw rods (22) are provided with holding rods (20).

8. The clamping mechanism for the stretching machine as claimed in claim 1, wherein: two second clamp splice (16) internally mounted has second bearing (23), and screw rod (22) stretch into the inside one end of second clamp splice (16) and second bearing (23) are connected with rotating.

9. The clamping mechanism for the stretching machine as claimed in claim 1, wherein: the hydraulic cylinder (3) stretches into the front side and the rear side of the interior of the box body (2) and is respectively welded with the fixing rods (7), and one side of each fixing rod (7) departing from the hydraulic cylinder (3) is respectively welded with the interior of the box body (2).