阅读说明：本技术 一种夹持机构 (Clamping mechanism ) 是由 陆军明 陆振飞 盛凯伟 居靖杰 于 2021-05-21 设计创作，主要内容包括：本发明公开了一种夹持机构,包括：主体；卡爪,设于主体内,用于夹持物体；动力组件,包括与卡爪相连的第一部分,和第二部分；辅助装置,包括设于第二部分的导向轨道,和与导向轨道相连的活动件；夹持机构至少具有第一行程和第二行程,于第一行程,第一部分相对第二部分活动,卡爪夹持物体,活动件与卡爪相抵；于第二行程,第一部分相对静止,第二部分相对第一部分移动,导向轨道驱动活动件转动形成供卡爪放松物体的活动间隙。本发明夹持稳固,需要脱开物体时,无需施加外力或施加较小的外力下,物体能轻松脱离卡爪；整个过程自动化进行,降低了人工成本,安全性能提高；夹持物体的体积小,报废物料少,损耗的原材料减少,节约了加工成本。(The invention discloses a clamping mechanism, comprising: a main body; the clamping jaw is arranged in the main body and used for clamping an object; a power assembly including a first portion connected to the jaws, and a second portion; the auxiliary device comprises a guide rail arranged on the second part and a movable part connected with the guide rail; the clamping mechanism at least has a first stroke and a second stroke, the first part moves relative to the second part in the first stroke, the jaw clamps an object, and the moving part is abutted against the jaw; in the second stroke, the first part is relatively static, the second part moves relative to the first part, and the guide rail drives the movable piece to rotate to form a movable gap for the claw to loosen an object. The clamping jaw is stable in clamping, and when an object needs to be separated, the object can be easily separated from the clamping jaw without applying external force or applying smaller external force; the whole process is carried out automatically, so that the labor cost is reduced, and the safety performance is improved; the clamping object has small volume, less scrapped materials, less lost raw materials and saved processing cost.)

1. A clamping mechanism, characterized by comprising:

a main body (1);

the clamping jaw (2) is arranged in the main body (1) and is used for clamping an object (3);

a power assembly comprising a first portion (31) connected to the jaw (2), and a second portion (32);

an auxiliary device comprising a guide rail (41) provided on the second portion (32), and a movable member (42) connected to the guide rail (41);

the clamping mechanism has at least a first stroke and a second stroke,

in a first stroke, the first part (31) moves relative to the second part (32), the jaw (2) clamps the object (3), and the moving part (42) is abutted against the jaw (2);

in the second stroke, the first part (31) is relatively static, the second part (32) moves relative to the first part (31), and the guide rail (41) drives the movable piece (42) to rotate to form a movable gap (5) for the claw (2) to loosen the object (3).

2. The clamping mechanism of claim 1, wherein: the end part of the side wall of the movable piece (42) close to the clamping jaw (2) forms a cutting surface (6), and the cutting surface (6) and the clamping jaw (2) form an avoiding space.

3. A clamping mechanism according to claim 1 or 2, wherein: the movable piece (42) is rotatably connected with the main body (1) through the rotating shaft (11), when the first end portion (425) of the movable piece (42) moves along the guide track (41), the second end portion (426) of the movable piece (42) rotates by taking the rotating shaft (11) as a fulcrum, so that the first end portion (425) of the movable piece (42) is far away from the clamping jaws (2), and a movable gap (5) between the movable piece (42) and the clamping jaws (2) is formed.

4. The clamping mechanism of claim 3, wherein: the guide rail (41) is arc-shaped, and the outer arc surface of the guide rail is close to the clamping jaw (2).

5. The clamping mechanism of claim 1, wherein: the second portion (32) is resiliently connected to the body (1).

6. The clamping mechanism of claim 1, wherein: the second part (32) comprises a mounting plate (321) parallel to the main body (1), a guide slide way (322) perpendicular to the mounting plate (321), and a guide block (323) capable of abutting against the step structure (12) on the main body (1), wherein the guide rail (41) is arranged on the guide block (323).

7. The clamping mechanism of claim 6, wherein: the first part (31) comprises a piston (311) which penetrates through a guide slideway (322) and is connected with the jaw (2), and an oil cylinder (312) for pushing the piston (311) to translate, wherein the oil cylinder (312) is connected with a mounting plate (321).

8. The clamping mechanism of claim 6, wherein: form base (71) on mounting panel (321), connecting rod (72) link to each other with main part (1) after base (71) is worn out, and the cover is established reset piece (73) one end of connecting rod (72) and is supported with main part (1) in base (71).

9. The clamping mechanism of claim 1, wherein: the clamping jaw (2) comprises a first clamping jaw (21) and a second clamping jaw (22), the auxiliary devices comprise a first auxiliary device (401) arranged on the side of the first clamping jaw (21) and a second auxiliary device (402) arranged on the side of the second clamping jaw (22), and the first auxiliary device (401) and the second auxiliary device (402) are symmetrically arranged.

10. The clamping mechanism of claim 1, wherein: an inclined surface (13) matched with the clamping jaw (2) is formed in the main body (1), and the inclined angle and the inclined direction of the inclined surface (13) and the outer wall of the clamping jaw (2) are the same.

Technical Field

The invention belongs to the technical field of reinforcing steel bar processing machinery, and particularly relates to a clamping mechanism.

Background

Steel working is usually performed by forcing a steel blank through a die hole under external tension to obtain a finished steel product of desired shape, size and mechanical properties. Draw gear on the existing market needs artifical material loading, the artifical raw and other materials that draws chain material loading to consume are more, the cost is increased, need artifical unloading after the processing is accomplished, because steel weight is big wayward, cause the injury of the person easily, the cost of labor is high, need shut down moreover and operate, when drawing once more, because the stall and the restart of rotatory reel, cause the change of linear velocity, the external diameter that can lead to its head end is not conform to the requirements.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides the clamping mechanism which is stable and effective in clamping, convenient in clamping release and simple in structure.

The technical scheme adopted by the invention for solving the technical problems is as follows: a clamping mechanism comprising:

a main body;

the clamping jaw is arranged in the main body and used for clamping an object;

a power assembly including a first portion connected to the jaws, and a second portion;

the auxiliary device comprises a guide rail arranged on the second part and a movable part connected with the guide rail;

the clamping mechanism has at least a first stroke and a second stroke,

in a first stroke, the first part moves relative to the second part, the jaw clamps an object, and the moving part abuts against the jaw;

in the second stroke, the first part is relatively static, the second part moves relative to the first part, and the guide rail drives the movable piece to rotate to form a movable gap for the claw to loosen an object.

The object is clamped in the first stroke, the clamping is stable, the object cannot easily slip, when the object is loosened, the claw and the object cannot be easily separated due to the fact that the claw and the object are mutually embedded, and a gap is formed between the movable piece and the claw through the movement of the second part in the second stroke, so that a movable gap is provided for the separation of the claw and the object, and the object can be easily separated from the claw; the automatic feeding device is simple in overall structure and ingenious in design, objects can be automatically separated from the clamping mechanism, the manual feeding operation of the objects is not needed, the damage of the objects to workers is avoided, and the safety performance is higher; the object contacted by the clamping mechanism is small in size, so that the material cannot be greatly lost, and the processing cost is reduced.

Further, the end part, close to the clamping jaw, of the side wall of the movable piece forms a cutting surface, and the cutting surface and the clamping jaw form an avoiding space. The design of cutting face avoids the moving part to produce the interference to the jack catch after rotating, guarantees the supplementary effect that compresses tightly of moving part to the jack catch when clamping state simultaneously.

Furthermore, the moving part is connected with the main body in a rotating mode through the rotating shaft, when the first end portion of the moving part moves along the guide track, the second end portion of the moving part rotates with the rotating shaft as a fulcrum, the first end portion of the moving part is far away from the clamping jaw, and a moving gap between the moving part and the clamping jaw is formed.

Furthermore, the guide track is arc-shaped, and the outer arc surface of the guide track is close to the clamping jaw. The guide rail has restricted the home range of moving part, and when the first end of moving part moved to the one end of guide rail, the moving part closely laminated with the jack catch, when the first end of moving part moved to its other end along the guide rail, the jack catch was kept away from to the moving part, provides the activity clearance that the jack catch divides the object, because the moving part supports the tip at the guide rail, the design of arc structure not only increases the smoothness nature of activity, can also keep the moving part at this state.

Further, the second portion is resiliently coupled to the body. The second part of the elastic connection can automatically reset after the object is loosened, and manual reset is not needed.

Furthermore, the second part comprises a mounting plate parallel to the main body, a guide slideway perpendicular to the mounting plate, and a guide block capable of abutting against the step structure on the main body, and the guide rail is arranged on the guide block.

Furthermore, the first part comprises a piston which penetrates through the guide slideway and is connected with the clamping jaw, and an oil cylinder which is used for pushing the piston to translate, wherein the oil cylinder is connected with the mounting plate.

Further, form the base on the mounting panel, the connecting rod is worn out the back from the base and is linked to each other with the main part, and the piece one end that resets that the connecting rod was located to the base endotheca offsets with the main part. The base guarantees that the piece that resets can not squint at will, and the connecting rod guarantees the straight line translation of mounting panel.

Furthermore, the jaw comprises a first jaw and a second jaw, the auxiliary devices comprise a first auxiliary device arranged on the side where the first jaw is located and a second auxiliary device arranged on the side where the second jaw is located, and the first auxiliary device and the second auxiliary device are symmetrically arranged. The first auxiliary device and the second auxiliary device which are symmetrically arranged guarantee the stability of the whole structure, so that the two sides of the clamping jaw are stressed evenly, and the clamping of objects is more stable.

Furthermore, an inclined surface matched with the clamping jaw is formed in the main body, and the inclined angle and the inclined direction of the inclined surface and the outer wall of the clamping jaw are the same.

The invention has the beneficial effects that: 1) the clamping jaw has the advantages that the clamping force for clamping an object is large, the clamping is stable, and when the object needs to be separated, the movable gap for separating the clamping jaw from the object is provided firstly, so that the object can be easily separated from the clamping jaw without applying external force or applying smaller external force; 2) the whole process is carried out automatically, manual operation of feeding and discharging is not needed, labor cost is reduced, and safety performance is improved; 3) the clamping object has small volume, less scrapped materials, less lost raw materials and saved processing cost.

Drawings

Fig. 1 is a first perspective view of the present invention.

Fig. 2 is a second perspective view of the present invention.

Fig. 3 is a perspective view three of the present invention.

Fig. 4 is a perspective view four of the present invention.

Fig. 5 is a front view of the present invention.

Fig. 6 is a side cross-sectional view of the present invention.

Fig. 7 is a front sectional view of the present invention.

Fig. 8 is a sectional view showing an initial state of the present invention.

Fig. 9 is a sectional view showing a state after the object is clamped according to the present invention.

Fig. 10 is a sectional view showing a state after the object is loosened according to the present invention.

Detailed Description

In order to make the technical solutions of the present invention better understood, 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.

As shown in fig. 1 to 7, a clamping mechanism comprises a main body 1, a jaw 2 arranged in the main body 1, a power assembly connected with the jaw 2, and an auxiliary device arranged in the main body 1 and matched with the jaw 2.

The claw 2 comprises a first claw 21 and a second claw 22 which can move close to or away from each other, in order to firmly clamp an object, a sawtooth-shaped structure is formed on the side wall of the first claw 21 close to the second claw 22, and the sawtooth-shaped structure is also formed on the side wall of the second claw 22 close to the first claw 21. The side wall of one side of the first jaw 21, which is far away from the second jaw 22, is provided with an inclined surface, the inclined surface 13 is formed in the main body 1, the inclined angle and the inclined direction of the inclined surface 13 are the same as those of the inclined surface, the second jaw 22 has the same structure, and the description is omitted, so that when the first jaw 21 and the second jaw 22 translate upwards along the main body 1 (with the direction shown in fig. 5 as a reference), the opening formed by the two inclined surfaces 13 is smaller and smaller, and the extrusion acting force on the jaw 2 is larger and larger.

The auxiliary devices comprise a first auxiliary device 401 arranged on the side of the first clamping jaw 21 and a second auxiliary device 402 arranged on the side of the second clamping jaw 22, and the first auxiliary device 401 and the second auxiliary device 402 are identical in structure and are symmetrically arranged.

The structure of the first auxiliary device 401 and the second auxiliary device 402 will be described by taking an auxiliary device as an example, and the auxiliary devices include a guide rail 41 and a movable member 42; the guide rail 41 is arc-shaped, the outer arc surface of the guide rail is close to the jaw 2, the guide rail 41 extends from bottom to top and from outside to inside in an arc shape by taking the direction shown in fig. 5 as a reference, and the guide rail is of a concave arc structure; the movable member 42 includes a first end portion 425 and a second end portion 426, the second end portion 426 is rotatably connected to the main body 1 through the rotating shaft 11, the first end portion 425 vertically extends to form a protruding pillar, and the protruding pillar vertically extends into the guide rail 41 to realize connection between the movable member 42 and the guide rail 41.

To avoid interference, the second end 426 of the movable member 42 forms a cut surface 6 adjacent to the side wall of the latch 2, and the cut surface 6 and the latch 2 form an escape space 63 therebetween. In order to increase the structural stability, an arc-shaped surface 427 is formed around half of the circumference of the rotating shaft 11 at the second end 426 of the movable member 42, and an arc surface abutting against the arc-shaped surface 427 is formed in the main body 1. Of course, the number of movable members 42 is the same as the number of auxiliary devices, including first movable member 421 and second movable member 422.

The power assembly comprises a first portion 31 connected to the jaw 2, and a second portion 32 elastically connected to the body 1; specifically, the second portion 32 includes a mounting plate 321, a guide rail 322 perpendicular to the mounting plate 321, and a guide block 323, the mounting plate 321 is a plate-shaped body parallel to one side of the main body 1, and the guide rail 41 is disposed on the guide block 323; to limit the formation of the translation of the second portion 32, a step 12 is formed on the body 1, the guide 323 being movable against the step 12.

The first portion 31 comprises a piston 311 connected to the jaw 2 after passing through a guide slide 322, and a cylinder 312 for pushing the piston 311 to translate, the cylinder 312 being fixedly connected to the outer side of the mounting plate 321 remote from the main body 1.

The second portion 32 is elastically connected with the main body 1 through a reset piece 73, specifically, the outer side of the mounting plate 321 far away from the main body 1 forms a base 71, a connecting rod 72 passes through the base 71 and the mounting plate 321 and then is connected with the main body 1, most of the reset piece 73 sleeved outside the connecting rod 72 is located in the base 71, one end of the reset piece abuts against the inner wall of the base 71, and the other end of the reset piece abuts against the outer side wall of the main body 1.

In order to improve the structural stability, a first base 711 and a second base 712 which have the same structure are symmetrically arranged on two sides of the oil cylinder 312 of the mounting plate 321; the first connecting rod 721 passes through the first base 711 and the mounting plate 321 and then is connected with the main body 1, the first reset piece 731 is sleeved outside the first connecting rod 721, one end of the first reset piece is abutted against the inner wall of the first base 711, and the other end of the first reset piece is abutted against the outer side wall of the main body 1; the second connecting rod 722 passes through the second base 712 and the mounting plate 321 and then is connected to the main body 1, the second restoring member 732 is sleeved outside the second connecting rod 722, one end of the second restoring member abuts against the inner wall of the second base 712, and the other end of the second restoring member abuts against the outer side wall of the main body 1.

The clamping mechanism can be applied to drawing and pulling of round steel, as shown in fig. 8, in an initial state, a large space is formed between the first jaw 21 and the second jaw 22, and can be used for the end part of an object, in this embodiment, the object is the round steel and is inserted after passing through a drawing die; at this time, the first end portion 425 of the first movable member 421 falls on the upper end of the first rail 411, the side wall of the first movable member 421 close to the first jaw 21 is attached to the inclined surface on the first jaw 21, the first end portion of the second movable member 422 falls on the upper end of the second rail 412, and the side wall of the second movable member 422 close to the second jaw 22 is attached to the inclined surface on the second jaw 22; the first and second restoring members 731, 732 are both in an extended state.

As shown in fig. 9, the oil cylinder 312 pushes the piston 311 to move upward by a first stroke, that is, the first portion 31 of the power assembly moves in a translational manner relative to the second portion 32 to drive the jaws 2 to move upward, and under the cooperation of the inclined surface 13 in the main body 1, the first jaws 21 and the second jaws 22 approach each other to clamp the round steel 3, at this time, the second portion 32 remains relatively stationary, and the movable member 42 and the jaws 2 remain attached to each other;

after the round steel is drawn, the end part of the round steel needs to be separated from the clamping mechanism, and at the moment, the end part of the round steel is extruded and deformed by the jaw 2, so that the outer wall part of the round steel is embedded into the zigzag structure of the jaw 2, the jaw 2 and the round steel are tightly occluded, the movable part 42 abuts against the jaw 2 to enable the jaw 2 to be incapable of moving, and the round steel cannot move along the axial direction; moreover, due to the reverse drawing force of the round steel on the jaw 2, the piston 311 cannot translate downwards, namely the first part 31 cannot reset;

as shown in fig. 10, under the drawing force of the round steel, the first portion 31 is relatively stationary, and the second portion 32 is translated relative to the first portion 31, that is, the second portion 32 is translated upward by a second stroke, that is, the guide track 41 on the second portion 32 is moved upward, and at this time, the first restoring member 731 and the second restoring member 732 are both in a compressed state;

the first convex column 423 moves along the first track 411 to drive the second end 426 of the first movable member 421 to rotate clockwise around the first rotating shaft 111, and the first end 425 of the first movable member 421 rotates in a direction away from the first jaw 21 to form a first movable gap 51 between the first movable member 421 and the first jaw 21 in cooperation with the first cutting surface 61;

the second pillar 424 moves along the second track 412 to drive the second end of the second movable member 422 to rotate counterclockwise around the second rotating shaft 112, and the first end of the second movable member 422 rotates in a direction away from the second jaw 22 to form a second movable gap 52 between the second movable member 422 and the second jaw 22 in cooperation with the second cutting surface 62;

due to the existence of the movable gap 5 formed by the first movable gap 51 and the second movable gap 52, a movable space is provided for the mutual separation of the first jaw 21 and the second jaw 22, so that the round steel can be separated from the jaw 2;

after the round steel breaks away from the claw 2, the first resetting piece 731 and the second resetting piece 732 are extended and reset to drive the second part 32 to move downwards and reset, and due to the existence of the first step structure 121 and the second step structure 122 in the main body 1, the guide block 323 of the power assembly is abutted to the step structure 12, so that the stroke of the downward translation of the second part 32 is limited.

The foregoing detailed description is intended to illustrate and not limit the invention, which is intended to be within the spirit and scope of the appended claims, and any changes and modifications that fall within the true spirit and scope of the invention are intended to be covered by the following claims.