CN220499160U - Clamping mechanism - Google Patents

Abstract

The utility model relates to the technical field of clamping, and particularly discloses a clamping mechanism, which comprises: a base; the two clamping jaw assemblies are both connected to the base in a sliding manner and are arranged in one-to-one correspondence with the two sides of the base; a clamping space is formed between the two clamping jaw assemblies; the driving piece is connected to the base in a sliding manner, and the sliding direction of the driving piece is perpendicular to the sliding direction of the clamping jaw assembly; the two clamping jaw assemblies are in driving connection with the driving piece; one end of the first elastic piece is connected with the base, and the other end of the first elastic piece is connected with the first end of the driving piece; the axis of the first elastic piece and the sliding direction of the driving piece are arranged in parallel; the self-locking assembly is arranged on the base and is connected with the second end of the driving piece; the self-locking assembly has a first state of spacing the second end of the locking drive member and a second state of releasing the second end of the drive member.

Description

Clamping mechanism

Technical Field

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

Background

In the production and processing process, a clamping mechanism is often required to clamp and fix a workpiece so as to facilitate transmission operation or processing operation. The existing clamping mechanism usually uses an elastic structure to enable the two clamping jaws to generate elastic clamping force, when clamping operation is carried out, external force is required to drive the two clamping jaws to move away from each other so that the two clamping jaws are in an open state, so that workpieces can be conveniently placed in a clamping space of the two clamping jaws or taken out of the clamping space, and after the external force is removed, the two clamping jaws can move close to each other under the elastic action of the elastic structure so that the two clamping jaws are in a closed clamping state, and the workpieces can be effectively clamped; however, when the two clamping jaws are required to be kept in an open state so as to facilitate taking out a workpiece and putting in a new workpiece, external force needs to be continuously applied to the two clamping jaws, so that time and labor are wasted, clamping operation is inconvenient to complete conveniently, and the use is inconvenient.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a clamping mechanism which solves the problem that external force is required to be continuously applied to two clamping jaws when the two clamping jaws are kept in an open state in the prior art, so that the clamping mechanism is inconvenient to use.

In order to achieve the above object, the present utility model provides the following technical solutions:

a clamping mechanism comprising:

a base;

the two clamping jaw assemblies are both connected to the base in a sliding manner and are arranged in one-to-one correspondence with the two sides of the base; a clamping space is formed between the two clamping jaw assemblies;

the driving piece is connected to the base in a sliding manner, and the sliding direction of the driving piece is perpendicular to the sliding direction of the clamping jaw assembly; the two clamping jaw assemblies are in driving connection with the driving piece;

one end of the first elastic piece is connected with the base, and the other end of the first elastic piece is connected with the first end of the driving piece; the axis of the first elastic piece and the sliding direction of the driving piece are arranged in parallel;

the self-locking assembly is arranged on the base and connected with the second end of the driving piece, and the self-locking assembly is provided with a first state for limiting and locking the second end of the driving piece and a second state for releasing the second end of the driving piece.

Optionally, the self-locking assembly comprises a button piece, a self-locking piece and a fixing piece; the button piece, the self-locking piece and the fixing piece are coaxially arranged;

the fixing piece is fixedly arranged on the base, and one end of the fixing piece is provided with a limit groove and a through groove; the limiting grooves are arranged at intervals with the through grooves and are arranged along the circumferential direction of the fixing piece;

the button piece is connected to the fixing piece in a sliding manner, a connecting lug matched with the through groove is arranged on the periphery of the button piece, and a plurality of driving parts which are arranged in a staggered manner relative to the limiting groove and the through groove are arranged at the first end of the button piece along the circumferential direction;

the first end of the self-locking piece is movably connected with the button piece, and the second end of the self-locking piece is abutted with the driving piece; the periphery of the self-locking part is provided with a self-locking part in driving connection with the driving part; the self-locking part can extend into the limit groove or the through groove.

Optionally, one end of the self-locking part is provided with a tilting driving end, and the driving part is abutted against the tilting driving end; when the driving part drives the inclined driving end to withdraw from the limit groove or the through groove, the driving part can drive the self-locking part to rotate through the inclined driving end, so that the self-locking part rotates to the through groove or the limit groove.

Optionally, the inclined driving end and a side wall of the self-locking part form a V-shaped convex part; the limiting groove is a V-shaped groove matched with the V-shaped convex part, so that the V-shaped convex part can be limited and self-locked when extending into the V-shaped groove.

Optionally, the driving part is a V-shaped structure adapted to the V-shaped protrusion, and the plurality of driving parts make the first end of the button member form a saw-tooth structure.

Optionally, the clamping jaw assembly comprises a clamping jaw, a connecting rod and a sliding seat; the sliding seat is connected to the base in a sliding manner; the first end of the sliding seat is fixedly connected with the connecting rod, and the second end of the sliding seat is in driving connection with the driving piece; the clamping jaw is fixedly connected with one end, far away from the sliding seat, of the connecting rod.

Optionally, a sliding rail is arranged on the base, and a sliding groove matched with the sliding rail is arranged on the sliding seat.

Optionally, the jaw assembly further comprises a second elastic member; the second elastic piece is sleeved on the connecting rod; one end of the second elastic piece is abutted with the base, and the other end of the second elastic piece is abutted with the first end of the sliding seat; the second end of the sliding seat is provided with a gradually-changing driving surface; the driving piece is provided with a driving cam which is abutted with the driving surface.

Optionally, the clamping mechanism further includes an ejector member, where the ejector member is disposed on the base, and the ejector member may extend into or withdraw from the clamping space.

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

the utility model provides a clamping mechanism, when in use, an external force is applied to a self-locking assembly to drive a driving piece to move towards a direction close to a first elastic piece, so as to drive two clamping jaw assemblies to move away from each other, and a clamping space is opened to a preset position, and meanwhile, the self-locking assembly is adjusted to a first state, so that the second end of the driving piece can be limited and locked, the clamping space is kept at the opened preset position, no external force is required to be continuously applied to the self-locking assembly, and at the moment, the first elastic piece is in a compressed state, so that a workpiece in the clamping space can be conveniently and quickly taken out, and a new workpiece can be put in; then through adjusting the auto-lock subassembly to the second state, just can release the second end of driving piece, simultaneously under the elasticity effect of first elastic component for the driving piece drives two clamping jaw subassembly direction motions, until the work piece in the clamping space is held. In general, when opening the clamping space to preset position, this fixture also can adjust auto-lock subassembly to first state to need not to last to exert external force to auto-lock subassembly and just can make the clamping space keep in the preset position of opening, with convenient the going on of work piece getting put the operation, labour saving and time saving conveniently presss from both sides and gets the use.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.

Fig. 1 is a schematic diagram of the overall structure of a clamping mechanism provided by the utility model;

FIG. 2 is a schematic view of the internal structure of the base provided by the present utility model;

FIG. 3 is a schematic view of a driving member and a self-locking assembly according to the present utility model;

FIG. 4 is a schematic diagram of a self-locking portion of the self-locking assembly according to the present utility model in a through-slot state;

FIG. 5 is a schematic view of a self-locking part in the self-locking assembly according to the present utility model in a state of just being separated from a through groove or a limit groove;

FIG. 6 is a schematic diagram of a self-locking part of the self-locking assembly provided by the utility model in a state of a limit groove;

FIG. 7 is a front view of the button member and the end of the securing member provided by the present utility model;

FIG. 8 is a schematic view of a button assembly according to the present utility model;

FIG. 9 is a schematic structural view of a self-locking member according to the present utility model;

fig. 10 is a schematic structural view of a clamping jaw assembly provided by the utility model.

In the above figures: 2. a base; 21. a slide rail; 3. a jaw assembly; 31. a clamping jaw; 32. a connecting rod; 33. a sliding seat; 331. a sliding groove; 332. a driving surface; 34. a second elastic member; 4. a driving member; 41. a driving cam; 5. a first elastic member; 6. a self-locking assembly; 61. a button member; 611. a connection bump; 612. a driving section; 62. a self-locking member; 621. a self-locking part; 6211. tilting the drive end; 63. a fixing member; 631. a limit groove; 632. a through groove; 7. and an ejector.

Detailed Description

In order to make the objects, features and advantages of the present utility model more obvious and understandable, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model, and it is apparent that the embodiments described below are only some embodiments of the present utility model, not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be understood that the detailed description and specific examples, while indicating the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model. Wherein the exemplary embodiments are described as processes or methods depicted as flowcharts; although a flowchart depicts various operations or step processes as a certain order, many of the operations or steps can be performed in parallel, concurrently or simultaneously, and the order of the various operations can be rearranged. When its operations or steps are completed, the corresponding process may be terminated, and there may be additional steps not included in the drawings. The processes described above may correspond to methods, functions, procedures, subroutines, and the like, and embodiments of the utility model and features of the embodiments may be combined with one another without conflict.

The term "comprising" and variants thereof as used herein is intended to be open ended, i.e., including, but not limited to. The term "based on" is based at least in part on. The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings; it is to be understood that for convenience of description, only some, but not all of the structures relevant to the present utility model are shown in the drawings.

Referring to fig. 1 to 10, an embodiment of the present utility model provides a clamping mechanism, including:

a base 2;

the two clamping jaw assemblies 3 are both connected to the base 2 in a sliding manner, and are arranged in one-to-one correspondence with the two sides of the base 2; a clamping space is formed between the two clamping jaw assemblies 3;

the driving piece 4 is connected to the base 2 in a sliding manner, and the sliding direction of the driving piece 4 is perpendicular to the sliding direction of the clamping jaw assembly 3; the two clamping jaw assemblies 3 are in driving connection with the driving piece 4;

the first elastic piece 5, one end of the first elastic piece 5 is connected with the base 2, and the other end is connected with the first end of the driving piece 4; the axis of the first elastic piece 5 and the sliding direction of the driving piece 4 are mutually parallel; the first elastic member 5 is preferably a compression spring;

the self-locking assembly 6 is arranged on the base 2, and the self-locking assembly 6 is connected with the second end of the driving piece 4; the self-locking assembly 6 has a first state in which it positions the second end of the locking drive 4 and a second state in which it releases the second end of the drive 4.

According to the above scheme, when the self-locking device is used, the external force is applied to the self-locking component 6 to drive the driving component 4 to move in the direction approaching to the first elastic component 5, so as to drive the two clamping jaw components 3 to move away from each other, and open the clamping space to the preset position, and simultaneously the self-locking component 6 is adjusted to the first state, so that the second end of the driving component 4 can be limited and locked, the clamping space is kept at the opened preset position, no external force is required to be continuously applied to the self-locking component 6, and at the moment, the first elastic component 5 is in the compressed state, so that the workpiece in the clamping space can be conveniently and rapidly taken out, and a new workpiece can be put in; then, the self-locking assembly 6 is adjusted to a second state, the second end of the driving piece 4 can be released, and meanwhile, under the elastic action of the first elastic piece 5, the driving piece 4 drives the two clamping jaw assemblies 3 to move in the direction until the workpiece in the clamping space is clamped. In general, when opening the clamping space to preset position, this fixture also can adjust auto-lock subassembly 6 to first state to need not to last to exert external force just can make the clamping space keep in the preset position of opening to the auto-lock subassembly 6, with convenient the going on of work piece getting put the operation, labour saving and time saving conveniently presss from both sides and gets the use.

Further, in order to perform a better limit setting or release on the second end of the driving member 4 to meet the use requirement, the self-locking assembly 6 includes a button member 61, a self-locking member 62 and a fixing member 63; the button member 61, the self-locking member 62 and the fixing member 63 are coaxially arranged;

the fixing piece 63 is fixedly arranged on the base 2, and one end of the fixing piece 63 is provided with a limiting groove 631 and a through groove 632; the limiting grooves 631 are spaced from the through grooves 632 and are arranged along the circumferential direction of the fixing member 63;

the button piece 61 is slidably connected to the fixing piece 63, a connection protrusion 611 adapted to the through groove 632 is provided on the circumferential side of the button piece 61, and a plurality of driving portions 612 arranged offset relative to the limiting groove 631 and the through groove 632 are provided at the first end of the button piece 61 along the circumferential direction;

the first end of the self-locking piece 62 is movably connected with the button piece 61, and the second end is abutted with the driving piece 4; the periphery of the self-locking piece 62 is provided with a self-locking part 621 which is in driving connection with the driving part 612; the self-locking portion 621 may extend into the limiting groove 631 or may extend into the through groove 632.

In this embodiment, by applying pressure to the button member 61, the button member 61 can slide in a direction approaching to the first elastic member 5, so as to drive the driving member 4 to slide in the same direction, when the self-locking portion 621 withdraws out of the limiting groove 631 and the through groove 632, under the interaction of the driving portion 612 and the self-locking portion 621, the self-locking member 62 can be rotated, so that the self-locking portion 621 rotates to a position corresponding to the through groove 632 or the limiting groove 631, and then when the pressure to the button member 61 is withdrawn, under the elastic force of the first elastic member 5, the self-locking portion 612 can extend into the through groove 632 or the limiting groove 631; when the self-locking part 612 stretches into the through groove 632, the self-locking assembly 6 is in the second state position, and when the self-locking part 612 stretches into the limit groove 631, the self-locking assembly 6 is in the first state position.

Specifically, in order to facilitate driving the self-locking member 62 to rotate, one end of the self-locking portion 621 is provided with a tilt driving end 6211, and the driving portion 612 abuts against the tilt driving end 6211; when the driving portion 612 drives the inclined driving end 6211 to withdraw from the limiting groove 631 or the through groove 632, the driving portion 612 can drive the self-locking member 62 to rotate through the inclined driving end 6211, so that the self-locking portion 621 rotates to the through groove 632 or the limiting groove 631.

Further, in order to facilitate better limit self-locking of the self-locking member 62 to meet the use requirement, the inclined driving end 6211 and one side wall of the self-locking portion 621 form a V-shaped protrusion; the limiting groove 631 is a V-shaped groove matched with the V-shaped convex part, so that the V-shaped convex part can limit and self-lock when extending into the V-shaped groove.

Further, in order to reduce the abrasion between the driving portion 612 and the self-locking portion 621, the driving portion 612 has a V-shaped structure adapted to the V-shaped protrusion, and the plurality of driving portions 612 form a saw-tooth structure at the first end of the button member 61.

Further, the jaw assembly 3 includes a jaw 31, a connecting rod 32 and a sliding seat 33; the sliding seat 33 is connected to the base 2 in a sliding manner; the first end of the sliding seat 33 is fixedly connected with the connecting rod 32, and the second end is in driving connection with the driving piece 4; the clamping jaw 31 is fixedly connected with one end of the connecting rod 32 far away from the sliding seat 33.

Specifically, in order to facilitate the sliding of the sliding seat 33 on the base 2, the base 2 is provided with a sliding rail 21, and the sliding seat 33 is provided with a sliding groove 331 adapted to the sliding rail 21.

Further, in order to facilitate the driving connection between the jaw assembly 3 and the driving member 4 to meet the use requirement, the jaw assembly 3 further comprises a second elastic member 34; the second elastic piece 34 is sleeved on the connecting rod 32; one end of the second elastic piece 34 is abutted with the base 2, and the other end is abutted with the first end of the sliding seat 33; a second end of the sliding seat 33 is provided with a gradually-changing driving surface 332; the driving tool 4 is provided with a driving cam 41 that abuts against the driving surface 332.

Further, in order to facilitate the ejection operation of the workpiece in the clamping space, the clamping mechanism further comprises an ejection member 7, the ejection member 7 is arranged on the base 2, and the ejection member 7 can extend into or withdraw from the clamping space. In this embodiment, the ejector member 7 may be driven by a motor or an air cylinder, so that one end of the ejector member 7 extends into or exits from the clamping space, thereby meeting the use requirement.

The above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (9)

1. A clamping mechanism, comprising:

a base (2);

the two clamping jaw assemblies (3) are both connected to the base (2) in a sliding manner, and are arranged in one-to-one correspondence with the two sides of the base (2); a clamping space is formed between the two clamping jaw assemblies (3);

the driving piece (4), the said driving piece (4) is connected to said base (2) slidably, the sliding direction of the said driving piece (4) is perpendicular to sliding direction of the said clamping jaw assembly (3); the two clamping jaw assemblies (3) are in driving connection with the driving piece (4);

one end of the first elastic piece (5) is connected with the base (2), and the other end of the first elastic piece (5) is connected with the first end of the driving piece (4); the axis of the first elastic piece (5) and the sliding direction of the driving piece (4) are arranged in parallel;

the self-locking assembly (6) is arranged on the base (2), and the self-locking assembly (6) is connected with the second end of the driving piece (4); the self-locking assembly (6) has a first state of positive locking of the second end of the driving member (4) and a second state of releasing of the second end of the driving member (4).

2. Clamping mechanism according to claim 1, characterized in that the self-locking assembly (6) comprises a push button member (61), a self-locking member (62) and a fixing member (63); the button piece (61), the self-locking piece (62) and the fixing piece (63) are coaxially arranged;

the fixing piece (63) is fixedly arranged on the base (2), and a limit groove (631) and a through groove (632) are formed in one end of the fixing piece (63); the limiting grooves (631) are arranged at intervals with the through grooves (632) and are arranged along the circumferential direction of the fixing piece (63);

the button piece (61) is slidably connected to the fixing piece (63), a connection lug (611) matched with the through groove (632) is arranged on the periphery of the button piece (61), and a plurality of driving parts (612) which are arranged in a staggered manner relative to the limiting groove (631) and the through groove (632) are arranged at the first end of the button piece (61) along the circumferential direction;

the first end of the self-locking piece (62) is movably connected with the button piece (61), and the second end is abutted with the driving piece (4); a self-locking part (621) in driving connection with the driving part (612) is arranged on the periphery of the self-locking part (62); the self-locking part (621) can extend into the limit groove (631) or can extend into the through groove (632).

3. The clamping mechanism according to claim 2, wherein one end of the self-locking portion (621) is provided with a tilting driving end (6211), and the driving portion (612) is abutted against the tilting driving end (6211); when the driving part (612) drives the inclined driving end (6211) to withdraw from the limit groove (631) or the through groove (632), the driving part (612) can drive the self-locking piece (62) to rotate through the inclined driving end (6211) so as to enable the self-locking part (621) to rotate to the through groove (632) or the limit groove (631).

4. A clamping mechanism according to claim 3, wherein the inclined drive end (6211) forms a V-shaped protrusion with a side wall of the self-locking portion (621); the limiting groove (631) is a V-shaped groove matched with the V-shaped convex part, so that the V-shaped convex part can be limited and self-locked when extending into the V-shaped groove.

5. The clamping mechanism according to claim 4, wherein the driving portion (612) has a V-shaped structure adapted to the V-shaped protrusion, and a plurality of the driving portions (612) form a saw-tooth structure at the first end of the button member (61).

6. Clamping mechanism according to claim 1, characterized in that the clamping jaw assembly (3) comprises a clamping jaw (31), a connecting rod (32) and a sliding seat (33); the sliding seat (33) is connected to the base (2) in a sliding manner; the first end of the sliding seat (33) is fixedly connected with the connecting rod (32), and the second end is in driving connection with the driving piece (4); the clamping jaw (31) is fixedly connected with one end, far away from the sliding seat (33), of the connecting rod (32).

7. Clamping mechanism according to claim 6, characterized in that the base (2) is provided with a sliding rail (21), and the sliding seat (33) is provided with a sliding groove (331) adapted to the sliding rail (21).

8. The clamping mechanism according to claim 6, wherein the jaw assembly (3) further comprises a second resilient member (34); the second elastic piece (34) is sleeved on the connecting rod (32); one end of the second elastic piece (34) is abutted with the base (2), and the other end of the second elastic piece is abutted with the first end of the sliding seat (33); a driving surface (332) with a gradual change shape is arranged on the second end of the sliding seat (33); the driving member (4) is provided with a driving cam (41) which is abutted against the driving surface (332).

9. Clamping mechanism according to claim 1, further comprising an ejector (7), said ejector (7) being provided on said base (2), said ejector (7) being extendable into or out of said clamping space.