CN112897053A - Clamping mechanism of clamp body - Google Patents

Abstract

The invention relates to a clamping mechanism of a clamp body, comprising: a connecting portion; the clamping parts are circumferentially arranged on the side wall of the connecting part and are used for clamping workpieces; the workpiece comprises a clamp body and a hook claw extending outwards from one end of the clamp body, and a shoulder part with an arc-shaped surface is formed at the integrated joint of the hook claw and the clamp body; the clamping part comprises a first clamping module corresponding to the press-fit shoulder and a second clamping module at the other end of the clamping workpiece, the first clamping module is pivoted with a first clamping jaw, the first clamping module and the second clamping module are driven to fold by a driver in the clamping part, the first clamping jaw is driven to rotate to adjust the first clamping jaw to be attached to the shoulder, the contact position of the first clamping jaw and the workpiece is kept, the grabbing effect of the first clamping jaw is guaranteed, and the clamping mechanism is simple in structure and convenient to use.

Description

Clamping mechanism of clamp body

Technical Field

The invention relates to the field of nonstandard automatic assembly, in particular to a clamping mechanism of a clamp body.

Background

In the non-standard automation field, in the process of clamping a clamp body, the inventor finds that the clamping mechanism in the prior art at least has the following problems:

firstly, the shape and structure of the clamp body are complex, and the surface of the clamp body is often an arc surface, so that a clamping jaw on a general clamping mechanism is difficult to accurately clamp a fixed position when clamping the clamp body, and therefore, a vacancy is easily caused in a partial region of the clamping jaw, the contact area is reduced, the pressure is too high, and the clamp body is easily damaged; meanwhile, the contact area between the clamping jaw and the clamp body is reduced, so that the clamping effect of the clamping jaw is not ideal, and the situation of slipping is easy to occur.

In view of the above, it is necessary to develop a clamping mechanism for a pincer body to solve the above problems.

Disclosure of Invention

Aiming at the defects in the prior art, the invention mainly aims to provide a clamping mechanism of a clamp body, which keeps the contact position of a first clamping jaw and a workpiece through a rotatable first clamping jaw so as to ensure the grabbing effect of the first clamping jaw.

Another object of the present invention is to provide a clamping mechanism, which can increase the contact area and increase the friction between the clamping jaw and the workpiece by deflecting the first clamping jaw, so as to ensure the grabbing effect.

In order to achieve the above and other advantages and in accordance with the purpose of the present invention, there is provided a clamping mechanism of a caliper body, comprising:

a connecting portion; and

at least two clamping parts circumferentially arranged on the side wall of the connecting part and used for clamping workpieces;

the workpiece comprises a clamp body and a hook claw extending outwards from one end of the clamp body, and a shoulder part with an arc-shaped surface is formed at the integrated joint of the hook claw and the clamp body;

the clamping part comprises a first clamping module corresponding to the press-fit shoulder and a second clamping module for clamping the other end of the workpiece, the first clamping module is pivoted with a first clamping jaw, the first clamping module and the second clamping module are driven to fold through a driver in the clamping part, and the first clamping jaw is driven to rotate so as to be adjusted to be attached to the shoulder.

Preferably, the first jaw comprises a connecting cylinder and a clamping end extending outwardly from a side of the connecting cylinder to form a projection;

the number of the hook claws is two, the positions of the clamping ends correspond to the hook claws, and the clamping ends are arranged along the extending direction of the connecting cylinder.

Preferably, the clamping end is provided with a buffer block on the side surface corresponding to the hook claw, and when the first clamping jaw is pressed on the workpiece, the buffer block elastically deforms to fit the hook claw.

Preferably, the second clamping module comprises a jaw support and a second jaw mounted on the jaw support;

the clamp body is provided with the hangers on the opposite end that sets up the clamping jaw relatively, thereby the both sides of the vice body of hangers outside extension form, the second clamping jaw is contradicted in the bottom department of hangers.

Preferably, the jaw support is C-shaped, and the second jaws are mounted at both end positions of the jaw support.

Preferably, the surface of the second clamping jaw, which is contacted with the hanging lug, is provided with an undulated toothed bulge so as to form a contact surface of the second clamping jaw.

Preferably, the first clamping module comprises a base, and the first clamping jaw is pivoted on the base.

Preferably, the base is provided with a through groove penetrating through two opposite side surfaces of the base, and the first clamping jaw is arranged in the through groove.

Preferably, the base is further provided with a mounting plate, and the mounting plate covers the through groove, so that an accommodating cavity of the first clamping jaw is formed between the base and the mounting plate;

a pin shaft groove is formed in the surface of the first clamping jaw, and the pin shaft groove in the first clamping jaw and the deep groove in the inner wall of the through groove form the installation position of a pin shaft, so that the first clamping jaw can rotate around the axis direction of the pin shaft.

Preferably, an elastic layer is arranged between the first clamping jaw and the mounting plate, and the surface of the hook jaw is inclined downwards relative to the shoulder part to form a slope;

the first clamping jaw is pressed on the shoulder, and under the driving of the driver, the first clamping jaw is pressed on the elastic layer to enable the elastic layer to deform, so that the first clamping jaw deflects downwards along the radial direction of the pin shaft, and the first clamping jaw is obliquely attached to the slope surface.

Compared with the prior art, the invention has the beneficial effects that:

the invention provides a clamping mechanism of a clamp body, which is characterized in that a driver drives two clamping modules to fold through a rotatable first clamping jaw, the first clamping jaw and a workpiece are kept on relatively fixed acting points, so that the clamping effect is ensured, meanwhile, the number of the acting points of the first clamping jaw and a shoulder part is ensured, and the problem that the pressure intensity at the acting point position is increased due to the reduction of the number of the acting points is avoided.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings. The detailed description of the present invention is given in detail by the following examples and the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:

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

FIG. 2 is a first perspective view of a clamping portion according to an embodiment of the present invention;

FIG. 3 is a second perspective view of the clamping portion according to an embodiment of the present invention;

FIG. 4 is a partial cross-sectional view of a clamping portion in one embodiment of the invention;

FIG. 5 is an enlarged view of a portion of FIG. 4;

FIG. 6 is an exploded view of a clamp portion according to an embodiment of the present invention;

fig. 7 is a schematic perspective view of a workpiece according to an embodiment of the invention.

Description of reference numerals:

41. a connecting portion;

42. a clamping portion;

421. a driver;

422. a first clamping module; 4221. a base; 4222. an elastic layer; 4223. mounting a plate; 4224. a pin shaft; 4225. an accommodating cavity;

423. a first jaw; 4231. connecting the columns; 4232. a clamping end; 4233. a buffer block; 4234. a pin shaft slot;

424. a second clamping module; 4241. a jaw support; 4242. a second jaw; 42421. a contact surface;

5. a workpiece;

51. a clamp body;

52. hanging a lug;

53. hooking claws; 531. a shoulder portion; 532. a slope surface.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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 obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In the drawings, the shape and size may be exaggerated for clarity, and the same reference numerals will be used throughout the drawings to designate the same or similar components.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar language throughout the specification is not intended to imply any order, quantity, or importance, but rather the intention is to distinguish one element from another. Also, the use of the terms "a," "an," or "the" and similar referents do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprise" or "comprises", and the like, means that the element or item listed before "comprises" or "comprising" covers the element or item listed after "comprising" or "comprises" and its equivalents, and does not exclude other elements or items. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, etc., are defined with respect to the configurations shown in the respective drawings, and in particular, "height" corresponds to a dimension from top to bottom, "width" corresponds to a dimension from left to right, "depth" corresponds to a dimension from front to rear, which are relative concepts, and thus may be varied accordingly depending on the position in which it is used, and thus these or other orientations should not be construed as limiting terms.

Terms concerning attachments, coupling and the like (e.g., "connected" and "attached") refer to a relationship wherein structures are secured or attached, either directly or indirectly, to one another through intervening structures, as well as both movable or rigid attachments or relationships, unless expressly described otherwise.

According to an embodiment of the present invention, referring to fig. 1 and 2, it can be seen that a clamping mechanism of a caliper body includes a connecting portion 41; at least two clamping parts 42 circumferentially arranged on the side wall of the connecting part 41 and used for clamping the workpiece 5; in a preferred embodiment, the number of the clamping parts 42 is three, and the clamping parts 42 are circumferentially and uniformly arranged on the side surface of the connecting part 41, so that a plurality of workpieces 5 can be conveyed in a single conveying process, and the conveying efficiency is improved;

the workpiece 5 comprises a clamp body 51 and a hook claw 53 extending outwards from one end of the clamp body 51, so that the workpiece 5 is L-shaped as a whole, and a shoulder 531 with an arc-shaped surface is formed at the integral joint of the hook claw 53 and the clamp body 51; specifically, the shoulder 531 is located at the bending position of the hook 53 and the caliper body 51;

the clamping portion 42 includes a first clamping module 422 corresponding to the pressing shoulder 531 and a second clamping module 424 for clamping the other end of the workpiece 5, the first clamping module 422 is pivotally connected to the first clamping jaw 423, the first clamping module 422 and the second clamping module 424 are driven to close by a driver 421 in the clamping portion 42, and the first clamping jaw 423 is driven to rotate so as to be adjusted to fit the first clamping jaw 423 on the shoulder 531.

The two clamping modules of the clamping part 42 respectively clamp the shoulder 531 and the other end of the clamp body 51 corresponding to the shoulder 531, the shape of the other end of the clamp body 51 is flat, so that the clamping jaws can be attached to the clamp body 51, and the opposite end of the shoulder 531 is provided, because of the limitation of the shape of the shoulder 531, when the first clamping jaw 423 is in contact with the surface of the arc-shaped shoulder 531, when a general clamping mechanism clamps the workpiece 5, the first clamping jaw 423 and the shoulder 531 are in a tangent state, so that the force point is only on one point, if the placing position of the workpiece 5 before being clamped is deviated, the force point of the first clamping jaw 423 and the shoulder 531 is not on a fixed point, and the clamping jaws 421 on both sides are driven to be closed by the driver, so that the clamping force of the two clamping modules drives the workpiece 5 to adjust the position of the workpiece 5 to meet the clamping of the two sides, at this time, the positions of the force application points of the first clamping jaw 423 and the shoulder 531 slide relatively to each other, so that the friction force between the first clamping jaw 423 and the shoulder 531 is reduced, and therefore slip-off after grabbing is easily caused, and meanwhile, in the process of adjusting the workpiece 5, there is also a case that the force application point of the first clamping jaw 423 is reduced due to the deviation of the position of the workpiece 5, and in the above case, due to the reduction of the number of the force application points, in the process of adjusting the position of the workpiece by using the clamping force, the pressure at the force application points of the first clamping jaw 423 and the shoulder 531 is large, so that damage is caused to the workpiece 5.

In the present embodiment, by using the rotatable first clamping jaw 423, when the driver 421 drives the two clamping modules to close, the first clamping jaw 423 is rotated by the supporting force of the workpiece 5 to adjust to the fixed force point with the shoulder 531, and along with the driver 421 driving the two clamping modules to close, the first clamping jaw 423 is forced to drive the workpiece 5 to rotate around the pivot shaft, at this time, the force points of the first clamping jaw 423 and the shoulder 531 are fixed relatively, so as to ensure the clamping effect thereof, in the preferred embodiment of the figure, the first clamping jaw 423 includes a connecting cylinder 4231 and a clamping end 4232 extending outward from one side surface of the connecting cylinder 4231 to form a protrusion; the number of the hook claws 53 is two, the positions of the clamping ends 4232 correspond to the hook claws 53, and the clamping ends 4232 are arranged along the extending direction of the connecting cylinder 4231; when the workpiece 5 is placed at a deflected position, under the driving of the driver 421, the first clamping jaw 423 first contacts with one of the hooks 53, and the first clamping jaw 423 is supported by the contacting hook 53 to rotate, so that the first clamping jaw 423 is preferentially rotated to a position tangent to the two hooks 53, and at this time, the acting points of the first clamping jaw 423 and the two hooks 53 are fixed acting points.

Meanwhile, the first clamping jaw 423 rotates to be adjusted to a fixed force point of the shoulder 531, so that the number of the force points of the first clamping jaw 423 and the shoulder 531 is ensured, and the problem that the pressure at the force point is increased due to the reduction of the number of the force points is solved.

The utility model discloses a workpiece clamping device, including first clamping jaw 423, buffer block 4233 elastic deformation colludes claw 53 in order to laminate when first clamping jaw 423 pressfitting is on work piece 5, through buffer block 4233 elastic deformation has increased with the area of contact who colludes claw 53 to increase frictional force reduces the probability that drops, simultaneously, utilizes elastic deformation to reduce the damage of rigid contact to work piece 5, absorbs the effort that the striking produced when first clamping jaw 423 contacts with work piece 5 effectively.

The second clamping module 424 comprises a jaw support 4241 and a second jaw 4242 mounted on the jaw support 4241;

the other end of the clamp body 51 opposite to the clamping jaw 53 is provided with a hanging lug 52, the hanging lug 52 extends outwards from two sides of the clamp body 51, and the second clamping jaw 4242 is abutted to the bottom of the hanging lug 52; specifically, the bottom surface of the hanging lug 52 is a flat surface, which facilitates the clamping of the second clamping jaw 4242.

In a preferred embodiment, the hanging lugs 52 are arranged on two corresponding sides of the clamp body 51, the jaw support 4241 is C-shaped, and the second jaws 4242 are arranged at two ends of the jaw support 4241, so that the second jaws 4242 on two ends of the jaw support 4241 extend into the bottom of the hanging lugs 52.

The surface of the second clamping jaw 4242, which is in contact with the hanging lug 52, is provided with an undulated toothed protrusion to form a contact surface 42421 of the second clamping jaw 4242, so that the clamping effect of the second clamping jaw 4242 is better.

In a preferred embodiment, the first clamping module 422 comprises a base 4231, and the first clamping jaw 423 is pivotally connected to the base 4231.

The base 4231 is provided with a through groove penetrating through two opposite side surfaces of the base, and the first clamping jaw 423 is arranged in the through groove.

Further, the base 4231 is further provided with a mounting plate 4223, and the through groove is covered by the mounting plate 4223, so that a containing cavity 4225 of the first clamping jaw 423 is formed between the base 4231 and the mounting plate 4223;

the surface of the first clamping jaw 423 is provided with a pin shaft groove 4234, the through groove is provided with a deep groove at a position corresponding to the pin shaft groove 4234 on the first clamping jaw 423, and the pin shaft groove 4234 on the first clamping jaw 423 and the deep groove on the inner wall of the through groove form an installation position for accommodating a pin shaft 4224, so that the first clamping jaw 423 can rotate around the axis direction of the pin shaft 4224.

Furthermore, an elastic layer 4222 is arranged between the first clamping jaw 423 and the mounting plate 4223, and the elastic layer 4222 is rebounded and reset, so that the next grabbing is facilitated;

meanwhile, the surface of the hook claw 53 extending outwards from the caliper body 51 is inclined downwards relative to the shoulder 531 to form a slope 532;

after the first clamping jaw 423 is pressed on the shoulder 531, under the driving of the driver 421, the first clamping jaw 423 presses on the elastic layer 4222 to deform the elastic layer 4222, so that the first clamping jaw 423 deflects downward along the radial direction of the pin 4224, and further the first clamping jaw 423 clings to the slope 532 in an inclined manner;

through the elastic deformation of the elastic layer 4222, the first clamping jaw 423 can rotate around the axis direction of the pin groove 4234, and meanwhile, the first clamping jaw 423 can rotate around the extending direction of the connecting cylinder 4231 on the first clamping jaw 423, so that the first clamping jaw 423 is turned over to achieve the purpose that the first clamping jaw 423 is attached to the slope 532, the contact area between the first clamping jaw 423 and the workpiece 5 is increased, and the clamping effect is further improved;

specifically, when the driver 421 drives the first clamping module 422, the first clamping jaw 423 rotates to first engage with the shoulder 531, and as the driver 421 continues to drive, the first clamping module 422 rotates to adjust the position of the workpiece 5, and when the driver 421 further drives the first clamping module 422, the first clamping jaw 423 drives the elastic deformation of the elastic layer 4222, so that the first clamping jaw 423 turns over, and the first clamping jaw 423 is engaged with the slope 532, thereby achieving a better clamping effect.

While embodiments of the invention have been disclosed above, it is not limited to the applications listed in the description and the embodiments, which are fully applicable in all kinds of fields of application of the invention, and further modifications may readily be effected by those skilled in the art, so that the invention is not limited to the specific details without departing from the general concept defined by the claims and the scope of equivalents.

Claims (10)

1. A clamping mechanism of a clamp body is characterized by comprising:

a connecting portion (41); and

at least two clamping parts (42) which are circumferentially arranged on the side wall of the connecting part (41) and are used for clamping the workpiece (5);

the workpiece (5) comprises a clamp body (51) and a hook claw (53) extending outwards from one end of the clamp body (51), and a shoulder part (531) with an arc-shaped surface is formed at the integrated joint of the hook claw (53) and the clamp body (51);

the clamping part (42) comprises a first clamping module (422) corresponding to the pressing shoulder (531) and a second clamping module (424) for clamping the other end of the workpiece (5), the first clamping module (422) is pivoted with a first clamping jaw (423), the first clamping module (422) and the second clamping module (424) are driven to fold through a driver (421) in the clamping part (42), and the first clamping jaw (423) is driven to rotate so as to be adjusted to be attached to the shoulder (531).

2. The clamping mechanism of claim 1, wherein the first jaw (423) includes a connection cylinder (4231) and a clamping end (4232) extending outwardly from a side of the connection cylinder (4231) to form a projection;

the number of the hook claws (53) is two, the positions of the clamping ends (4232) correspond to the hook claws (53), and the clamping ends (4232) are distributed along the extending direction of the connecting cylinder (4231).

3. The clamping mechanism according to claim 2, characterized in that a buffer block (4233) is mounted on the side of the clamping end (4232) corresponding to the hook (53), and when the first clamping jaw (423) is pressed on the workpiece (5), the buffer block (4233) is elastically deformed to fit the hook (53).

4. The clamping mechanism of any one of claims 1 to 3, wherein the second clamping module (424) comprises a jaw support (4241) and a second jaw (4242) mounted to the jaw support (4241);

the other end of the clamp body (51) opposite to the clamping jaw (53) is provided with a hanging lug (52), two sides of the clamp body (51) of the hanging lug (52) extend outwards to form, and the second clamping jaw (4242) is abutted to the bottom of the hanging lug (52).

5. The clamping mechanism of claim 4, wherein the jaw support (4241) is C-shaped, and the second jaw (4242) is mounted at both end positions of the jaw support (4241).

6. The clamping mechanism as claimed in claim 4, characterized in that the surface of the second clamping jaw (4242) in contact with the suspension loop (52) is provided with an undulated toothed projection to form a contact surface (42421) of the second clamping jaw (4242).

7. The clamping mechanism of any one of claims 1 to 3, wherein the first clamping module (422) comprises a base (4231), the first clamping jaw (423) being pivoted on the base (4231).

8. The clamping mechanism as claimed in claim 7, characterized in that the base (4231) is provided with a through slot passing through opposite sides thereof, the first clamping jaw (423) being arranged in the through slot.

9. The clamping mechanism according to claim 8, characterized in that the base (4231) is further provided with a mounting plate (4223), and the through slot is covered by the mounting plate (4223), so that a containing cavity (4225) of the first clamping jaw (423) is formed between the base (4231) and the mounting plate (4223);

the surface of the first clamping jaw (423) is provided with a pin shaft groove (4234), the pin shaft groove (4234) on the first clamping jaw (423) and the deep groove on the inner wall of the through groove form the installation position of a pin shaft (4224), and therefore the first clamping jaw (423) can rotate around the axis direction of the pin shaft (4224).

10. The clamping mechanism as claimed in claim 9, characterized in that an elastic layer (4222) is arranged between the first clamping jaw (423) and the mounting plate (4223), and the surface of the hook claw (53) is inclined downwards relative to the shoulder (531) to form a slope (532);

after the first clamping jaw (423) is pressed on the shoulder (531), under the driving of the driver (421), the first clamping jaw (423) is pressed on the elastic layer (4222) so that the elastic layer (4222) deforms, and therefore the first clamping jaw (423) deflects downwards along the radial direction of the pin shaft (4224), and further the first clamping jaw (423) is obliquely attached to the slope surface (532).

Images