CN210939298U

CN210939298U - Clamping jaw

Info

Publication number: CN210939298U
Application number: CN201921553684.2U
Authority: CN
Inventors: 不公告发明人
Original assignee: Wuxi Lead Intelligent Equipment Co Ltd
Current assignee: Jiangsu Lidao Technology Co.,Ltd.
Priority date: 2019-09-18
Filing date: 2019-09-18
Publication date: 2020-07-07
Anticipated expiration: 2029-09-18

Abstract

The application discloses a clamping jaw for clamping an object to be clamped, which comprises a shell, clamping fingers, a pressing block and an elastic ring, wherein a hollow first cavity is formed in the shell; the pressing block penetrates through the first cavity and can move towards the clamping end of the clamping finger along the first cavity; the elastic ring is sleeved outside the shell and the clamping finger and can restrict the clamping finger and the shell to fix the relative positions of the clamping finger and the shell; when the pressing block presses the clamping end of the clamping finger along the first cavity, the clamping finger is pressed out of the first cavity along with the pressing block gradually pressing the clamping finger, so that the clamping jaw is opened; when the pressing block is far away from the clamping end of the clamping finger along the first cavity, the clamping finger is recovered towards the first cavity under the cooperation of the elastic restoring force of the elastic ring, so that the clamping jaw is closed; the distance of the pressing block moving along the first cavity can be controlled, so that the outward opening or closing range of the clamping fingers can be controlled, and the object to be clamped can be better clamped.

Description

Clamping jaw

Technical Field

The application relates to the technical field of mechanical equipment, in particular to a clamping jaw.

Background

The clamping jaw is a common structure of mechanical equipment and is used for grabbing objects and realizing the extraction or transfer of the objects. The traditional clamping jaws are mainly formed by two or more clamps which move relatively, the opening and closing of the clamping jaws are mainly controlled by a driving part directly, the action is single, and only articles with fixed sizes can be clamped; and the clamping force is fixed, so that the product is easy to be damaged or can not be clamped.

SUMMERY OF THE UTILITY MODEL

The application provides a clamping jaw to solve prior art in clamping jaw action singleness, the fixed technical defect of clamping-force.

In order to solve the technical problem, the application adopts a technical scheme that: provided is a clamping jaw for clamping an object to be clamped, comprising: the shell is internally provided with a hollow first cavity; the clamping fingers are rotatably arranged on the shell, clamping ends of the clamping fingers protrude out of the shell, and the clamping fingers are at least partially arranged in the first cavity; the pressing block penetrates through the first cavity and can move towards the clamping end of the clamping finger along the first cavity; the elastic ring is sleeved outside the shell and the clamping finger and can restrict the clamping finger and the shell to fix the relative positions of the clamping finger and the shell;

when the pressing block presses the clamping end of the clamping finger along the first cavity, the clamping finger is pressed out of the first cavity and outwards opened along with the pressing block gradually pressing the clamping finger, and then the elastic ring is expanded; when the pressing block is far away from the clamping end of the clamping finger along the first cavity, the clamping finger is recovered towards the first cavity under the cooperation of the elastic restoring force of the elastic ring.

Furthermore, set up the first guide way that the orientation pressed from both sides the finger centre gripping end and extend on the shell, be equipped with first moving part on the briquetting, first moving part and first guide way sliding connection, can follow first guide way motion.

Furthermore, the first cavity penetrates through the shell, and when the pressing block moves towards the clamping end of the clamping finger along the first cavity, at least part of the pressing block can penetrate through the first cavity and abut against an object to be clamped.

Furthermore, the clamping jaw also comprises a pressing finger, the pressing finger is arranged on the pressing block, and the end part of the pressing finger protrudes out of the pressing block.

Furthermore, a second guide groove extending towards the clamping end of the clamping finger is formed in the pressing block, a second moving piece is arranged on the pressing finger, and the second moving piece is connected with the second guide groove in a sliding mode and can move along the second guide groove; and a first elastic piece is arranged between the second moving piece and the second guide groove, one end of the first elastic piece is abutted against the second moving piece, the other end of the first elastic piece is abutted against the top wall of the second guide groove, and the first elastic piece can be compressed when the second moving piece moves along the second guide groove.

Furthermore, the part of the clamping finger exposed in the first cavity and pressed against the pressing block is an inclined plane; or the part of the pressing block, which is pressed against the clamping finger, is an inclined plane.

Furthermore, the part of the clamping finger exposed in the first cavity is inclined towards the pressing block from one end of the clamping finger connecting shell to the clamping end of the clamping finger; the pressing block is inwards sunken at a position corresponding to the clamping fingers to form a first groove capable of containing the clamping fingers; when the pressing block moves towards the clamping end of the clamping finger, the first groove pushes the clamping finger to be outwards opened.

Furthermore, the outer wall part of the shell is sunken inwards to form a second groove capable of containing the elastic ring.

Furthermore, the clamping jaw also comprises a driving assembly, and the driving assembly is connected with and drives the pressing block to move towards the clamping end of the clamping finger along the first cavity.

Further, the driving assembly comprises a guide frame, a hollow second cavity is arranged inside the guide frame, one end, far away from the first cavity, of the pressing block penetrates through the second cavity, a second elastic piece is arranged between the pressing block and the second cavity, one end of the second elastic piece abuts against the pressing block, the other end of the second elastic piece abuts against the top wall of the second cavity, and when the pressing block continuously abuts against an object to be clamped, the second elastic piece can be compressed

The clamping device is provided with the shell with the first cavity, the clamping fingers which are rotatably arranged on the shell, the pressing block which is arranged in the first cavity in a penetrating mode and the elastic ring which is used for restraining the shell and the clamping fingers, so that when the pressing block presses towards the clamping end of the clamping fingers along the first cavity, the pressing block gradually abuts against the clamping fingers along with the pressing block, the clamping fingers are pressed out of the first cavity and outwards opened, and then the elastic ring is expanded, so that the clamping jaws are opened; when the pressing block is far away from the clamping end of the clamping finger along the first cavity, the clamping finger is recovered towards the first cavity under the cooperation of the elastic restoring force of the elastic ring, so that the clamping jaw is closed; furthermore, the distance of the pressing block moving along the first cavity can be controlled, so that the outward opening or closing amplitude of the clamping fingers can be controlled, and the object to be clamped can be better clamped.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:

FIG. 1 is a front view schematic diagram of an embodiment of a clamping jaw provided herein;

FIG. 2 is a schematic diagram illustrating a right side view of an embodiment of a clamping jaw provided herein;

FIG. 3 is a front view of the housing, clamping fingers and elastic ring provided by the present application;

FIG. 4 is a schematic diagram of a right-side view of the housing, clamping fingers and elastic ring provided by the present application;

FIG. 5 is a schematic view of a clip finger configuration provided herein;

FIG. 6 is a schematic front view of a pressing block and a pressing finger provided by the present application;

fig. 7 is a schematic diagram of a right-view structure of a pressing block and a pressing finger provided by the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, 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 application.

Referring to fig. 1-7, the present application discloses a clamping jaw for clamping an object to be clamped, which includes a housing 10, the housing 10 having a hollow first cavity 11 therein; the clamping finger 20 is rotatably arranged on the shell 10, the clamping end of the clamping finger 20 protrudes out of the shell 10, and the clamping finger 20 is at least partially exposed in the first cavity 11; the pressing block 30 penetrates through the first cavity 11 and can move towards the clamping end of the clamping finger 20 along the first cavity 11; the elastic ring 40 is sleeved outside the shell 10 and the clamping finger 20, and can restrict the clamping finger 20 and the shell 10 to fix the relative positions of the two.

The clamping fingers 20 are clamping members for contacting the object to be clamped, and clamping ends of the clamping fingers protrude out of the shell 10 so as to clamp the object to be clamped.

Further, the clamping fingers 20 are rotatably provided on the housing 10 by the rotating shaft 21, whereby the clamping fingers 20 are relatively opened when the clamping fingers 20 are separated from the housing 10 around the rotating shaft 21; when the clamping fingers 20 approach the housing 10 around the rotating shaft 21, the clamping fingers 20 are relatively closed.

In one embodiment, only one clamping finger 20 may be disposed on the housing 10, and in this case, the clamping finger 20 cooperates with the opposite wall of the housing 10 to clamp and release the object to be clamped. That is, the gripping fingers 20 open and close relative to the housing wall to clamp the object to be clamped between the gripping fingers 20 and the housing wall.

In other embodiments, a plurality of opposing gripping fingers 20 may be provided on the housing 10. For example, two opposing gripping fingers 20 are provided, and the two gripping fingers 20 are moved relatively, thereby achieving gripping and releasing of the object to be gripped. For another example, three clamping fingers 20 are provided, and the three clamping fingers 20 move relatively to clamp three surfaces of the object to be clamped. For another example, four gripping fingers 20 are provided to grip four sides of the object to be gripped. Specifically, the number of the gripping fingers 20 may be set as desired according to the configuration of the object to be gripped, and the present application is not limited thereto.

Specifically, when the pressing block 30 presses the clamping end of the clamping finger 20 along the first cavity 11, the clamping finger 20 is pressed out of the first cavity 11 and opened outwards along with the pressing block 30 gradually pressing against the clamping finger 20, so as to expand the elastic ring 40; at this time, the clamping fingers 20 are opened to accommodate the object to be clamped; when the pressing block 30 is far away from the clamping end of the clamping finger 20 along the first cavity 11, the clamping finger 20 is recovered towards the first cavity 11 under the cooperation of the elastic restoring force of the elastic ring 40; at this time, the gripping fingers 20 are closed, and can grip the object to be gripped.

It will be appreciated that since fingers 20 are partially exposed in first cavity 11, pressing of mass 30 against the gripping ends of fingers 20 occupies space within first cavity 11, thereby "squeezing" fingers 20 out of first cavity 11. The clamping finger 20 is pushed by the pressing block 30, and the part of the clamping finger contacting the pressing block 30 is pushed out of the first cavity 11. At this time, since the clamping fingers 20 are rotatably connected to the housing, the clamping fingers 20 are pushed out of the first cavity 11 and then turned outwards around the position where the clamping fingers are rotatably connected to the housing 10, thereby opening the clamping fingers 20. The gripping fingers 20 expand outwardly, spreading the resilient ring 40 apart. The elastic ring 40 has a tendency to be restored to its original shape, that is, has an elastic restoring force due to its own characteristics, so that the elastic ring 40 always surrounds the housing 10 and the clamping fingers 20. On the one hand, the elastic ring 40 can push the clamping finger 20 back to the first cavity 11 when the pressing block 30 is far away from the clamping end of the clamping finger 20; on the other hand, the elastic ring 40 can make the clamping fingers 20 have clamping force to clamp the object to be clamped after the clamping fingers 20 clamp the object to be clamped.

It can be understood that, because the pressing block 30 gradually presses the part of the clamping finger 20 exposed in the first cavity 11, the degree of pressing the pressing block 30 is controlled, so that the degree of opening the clamping finger 20 can be controlled, and further, the clamping finger 20 can accommodate objects to be clamped in various sizes, and the adaptability of the clamping jaw is improved. Meanwhile, because the clamping force of the clamping fingers 20 is given by the elastic ring 40, due to the characteristics of the elastic ring 40, the elastic ring can be elastically adjusted according to the size of the object to be clamped by the clamping fingers 20, so that the clamping force is proper, and the object to be clamped can be stably clamped.

Further, in order to ensure the stability of the position of the elastic ring 40, the outer wall portion of the housing 10 is recessed inward to form a second groove 14 capable of accommodating the elastic ring 40. Further, as the clamping fingers 20 are spread outwardly, the resilient ring 40 is spread apart so that the resilient ring 40 may be separated from the housing 10. In order to prevent the elastic ring 40 from being supported away from the second groove 14 and moving along the clamping finger 20 to separate from the fixed position, the position of the clamping finger 20 corresponding to the second groove 14 is also recessed inwards to form a third groove 22 capable of accommodating the elastic ring. Thus, after the clamping fingers 20 open the elastic ring 40, the third groove 22 can continue to define the position of the elastic ring 40. At the same time, when the clamping fingers 20 are not opened, the elastic ring 40 is located in both the second groove 14 and the third groove 22.

Further, since the clamping fingers 20 are opened outwards, in order to avoid affecting the turnover of the clamping fingers 20, the housing 10 is provided with the clamping fingers 20 at a position penetrating through the housing 10, so that the outside is communicated with the first cavity 11. At this time, the groove body extending directions of the third groove 22 and the second groove 14 are communicated, and the elastic ring 40 can be accommodated well.

Referring to fig. 2, in order to ensure the stability of the pressing block 30 moving along the first cavity 11, a first guide groove 12 extending toward the clamping end of the clamping finger 20 is formed in the housing 10, a first movable member 13 is disposed on the pressing block 30, and the first movable member 13 is slidably connected with the first guide groove 12 and can move along the first guide groove 12. Specifically, when the clamping finger 20 needs to be opened, the pressing block 30 presses the clamping end of the clamping finger 20 along the first cavity 11, and at the same time, the first movable member 13 moves towards the clamping end of the clamping finger 20 along the first guide groove 12. The first guide groove 12 can limit the moving direction of the first movable member 13, thereby ensuring that the pressing block 30 accurately and consistently presses the portion of the clamping finger 20 exposed in the first cavity 11.

In one embodiment, the first cavity 11 inside the housing 10 may be set to a limited distance, that is, the pressing block 30 cannot penetrate through the housing 10 and can only move in the first cavity 11. So long as it is ensured that the clamping fingers 20 are partially exposed within the stroke range of the pressing block 30.

In another embodiment, the first cavity 11 penetrates the housing 10, that is, when the pressing block 30 moves along the first cavity 11 toward the clamping end of the clamping finger 20, at least a portion of the pressing block 30 can penetrate the first cavity 11 and finally press against the object to be clamped. In this embodiment, the pressing block 30 moves towards the object to be clamped, so that the clamping fingers 20 are opened and finally abut against the object to be clamped, the object to be clamped can be pressed, the object to be clamped is prevented from deviating from the clamping position, and the object to be clamped is conveniently clamped when the clamping fingers 20 are recovered.

Further, in this embodiment, the clamping jaw further includes a pressing finger 50, the pressing finger 50 is disposed on the pressing block 30, and an end of the pressing finger 50 protrudes from the pressing block 30. At this time, the pressing finger 50, i.e., the pressing piece 30, presses against the "portion" of the object to be clamped. In order to accommodate the object to be clamped, the opening range of the clamping fingers 20 needs to be larger than the clamping range of the object to be clamped; when the object to be clamped is accommodated, the clamping fingers 20 are required to be recovered to clamp the object to be clamped. That is, in order to clamp the object to be clamped, the pressing block 30 needs to be away from the object to be clamped so that the clamping fingers 20 are retracted. By arranging the pressing fingers 50, on one hand, the clamping fingers 20 can abut against the object to be clamped before clamping the object to be clamped so as to limit the relative position of the object to be clamped; on the other hand, when the pressing block 30 is recovered, the pressing finger 50 still keeps pressing against the object to be clamped, so as to ensure the limitation of the position of the object to be clamped.

It should be added that, in a specific embodiment, the object to be held is a pair of keyboard scissors. The scissor keyboard is an X-shaped support designed below the keycap and plays a supporting role for the keycap together with the silica gel bowl. The keyboard scissors foot is provided with two parts capable of moving relatively, and the two parts are required to be kept in a relatively consistent state during carrying, so that when the keyboard scissors foot is grabbed by the clamping jaw, the keyboard scissors foot needs to abut against the position of the two parts moving relatively, and the two parts are prevented from moving and changing the state. In this case, the pressing finger 50 is disposed at a position corresponding to the position to be pressed. When the pressing piece 30 is pressed against the object to be clamped, the pressing finger 50 presses against this position. When the clamping fingers 20 are closed, the pressing fingers 50 are still pressed in this position.

Furthermore, in order to ensure that the pressing finger 50 always presses the object to be clamped, the pressing block 30 is provided with a second guide groove 31 extending towards the clamping end of the clamping finger 20, the pressing finger 50 is provided with a second movable member 51, and the second movable member 51 is slidably connected with the second guide groove 31 and can move along the second guide groove 31; a first elastic element 52 is arranged between the second movable element 51 and the second guide groove 31, one end of the first elastic element 52 abuts against the second movable element 51, the other end abuts against the top wall of the second guide groove 31, and when the second movable element 51 moves along the second guide groove 31, the first elastic element 52 can be compressed.

Referring to fig. 1, 2, 6 and 7, the pressing finger 50 is provided on the pressing piece 30 through the second movable piece 51. Therefore, when the pressing block 30 is pressed to the object to be clamped, the pressing finger 50 is pressed against the object to be clamped first. After the pressing fingers press the object to be clamped, the pressing block 30 is further pressed down for a certain distance, and simultaneously, the pressing block 30 and the pressing fingers 50 are further pressed down due to the inertia of the movement. At this time, the pressing finger 50 is limited by the object to be clamped, and cannot continuously press the object to be clamped, and the pressing block 30 moves towards the object to be clamped. Then, the pressing finger 50 is not moved, and the second movable member 51 is moved in the reverse direction with respect to the pressing piece 30 in the second guide groove 31, so that the first elastic member 52 is compressed. The first elastic element 52 has a tendency to return to its original shape, and the elastic return force generated by the first elastic element can abut against the second movable element 51 and the pressing finger 50, so that the pressing finger 50 presses the object. When the clamping fingers 20 are retracted, the pressing block 30 is far away from the object to be clamped, and at this time, the first elastic member 52 is gradually restored, and the pressing fingers 50 do not disengage from the object to be clamped, and keep the object to be clamped in a tightly-pressed state. That is, the first elastic member 52 controls the retracting stroke of the pressing block 30, so that the pressing finger 50 does not disengage from the object to be clamped. Wherein, the first elastic member 52 may be a spring.

It should be noted that, in this embodiment, the first movable member 13 may be disposed on the second movable member 51, or may be disposed on another portion of the pressing block 30.

It can be added that when the object to be clamped is a pair of keyboard scissors, four clamping fingers 20 can be disposed on the housing 10, and are respectively used for clamping one side of the pair of keyboard scissors. Alternatively, three clamping fingers 20 can be provided on the housing 10, wherein two clamping fingers 20 are arranged opposite to each other, but not opposite to the one clamping finger 20 arranged opposite to the two clamping fingers 20, and a protruding clamping wall 15 opposite to the clamping end of the clamping finger 20 can be provided on the wall of the housing 10 opposite to the protruding clamping wall. Referring to fig. 1, 2, 3 and 4, after the clamping fingers 20 are tightened, the four sides of the scissor legs of the keyboard are respectively controlled by three clamping fingers 20 and one clamping wall 15, so as to realize clamping. At this time, the clamping wall 15 is equivalent to a reference clamping position because it is not turned over and the position is relatively fixed, and when the clamping fingers 20 clamp the keyboard scissors, the keyboard scissors must be abutted against the clamping wall 15, thereby defining the clamping position of the keyboard scissors for positioning.

Furthermore, due to the uniqueness of the structure of the scissor legs of the keyboard, the scissor legs of the keyboard can form a certain angle relative to the two movable parts, and the scissor legs of the whole keyboard are relatively inclined. Therefore, the surface of the shell 10 abutting against the scissors pins of the keyboard can be an inclined surface, the contact surface can be increased, the scissors pins of the keyboard can be conveniently pressed, and stable clamping is realized.

Further, to better grip the scissors of the keyboard, the pressing fingers 50 of the clamping jaw are pressed against the scissors of the keyboard in a position where the scissors of the keyboard can move relatively, the housing 10 is pressed against the upper surface of the scissors of the keyboard, and the clamping fingers 20 and the clamping walls 15 clamp the four sides of the scissors of the keyboard.

In order to better control the opening amplitude of the clamping finger 20, the part of the clamping finger 20, which is exposed in the first cavity 11 and is pressed against the pressing block 30, is an inclined surface; alternatively, the portion of the pressing block 30 pressing against the clamping finger 20 is a slope.

Specifically, whether the part of the clamping finger 20 exposed in the first cavity 11 is gradually inclined or the part of the pressing block 30 pressed against the clamping finger 20 is gradually inclined, the degree of outward opening of the clamping finger 20 is controlled along with the depth of pressing of the pressing block 30 when the pressing block 30 is pressed against the clamping finger 20 by the change of the inclination angle of the contact surface between the clamping finger 20 and the pressing block 30. It will be appreciated that when the fingers 20 are opened outwardly, the position where they are rotatably connected to the housing 10 is the center axis of the turn, and the farther away from the center axis the pressing block 30 applies the pushing force, the greater the turning amplitude of the fingers 20. In addition, through setting up the change of inclined plane angle, be convenient for realize that briquetting 30 pushes away to clamp finger 20, can avoid briquetting 30 to be blocked by clamp finger 20 when moving along first cavity 11.

In one embodiment, the portion of the clamping finger 20 exposed in the first cavity 11 is inclined toward the pressing block 30 from the end of the clamping finger 20 connected to the housing 10 to the clamping end of the clamping finger 20; the pressing block 30 is inwards recessed at a position corresponding to the clamping fingers 20 to form a first groove 32 capable of accommodating the clamping fingers 20; as press block 30 moves toward the gripping ends of fingers 20, first recess 32 pushes fingers 20 outward.

Referring to fig. 6 and 7, in the present embodiment, the portion of the clamping finger 20 exposed in the first cavity 11 is inclined toward the pressing block 30 from top to bottom. When the clamping fingers 20 are not opened, the exposed portions of the clamping fingers 20 in the first cavity 11 are received in the first grooves 32. It will be appreciated that, to accommodate this portion, the concave arc of the first groove 32 is from top to bottom, with the degree of concavity increasing. Therefore, when the pressing block 30 moves towards the clamping end of the clamping finger 20, the position with the smaller concave degree of the first groove 32 extrudes the position with the larger angle of the inclined surface of the clamping finger 20, and then the clamping finger 20 is gradually extruded out of the first cavity 11. By arranging the first groove 32 to accommodate the part of the clamping finger 20 exposed in the first cavity 11, on one hand, the movement stroke of the pressing block 30 can be reduced, on the other hand, the relative positions of the pressing block 30 and the clamping finger 20 can be further limited, and the stability and the uniformity of the opening of the clamping finger 20 are ensured.

To facilitate movement of the press block 40 toward the gripping fingers 20, in one embodiment, the jaw further includes a drive assembly 60 coupled to and driving the press block 30 along the first cavity 11 toward the gripping ends of the gripping fingers 20.

In one embodiment, the driving assembly 60 may be a pneumatic cylinder, an electric cylinder, a motor, or the like, which is capable of driving the movement of the pressing block 30.

In another embodiment, the driving assembly 60 includes a guiding frame 61, a hollow second cavity is provided inside the guiding frame 61, one end of the pressing block 30 far away from the first cavity 11 penetrates through the second cavity, a second elastic member 33 is provided between the pressing block 30 and the second cavity, one end of the second elastic member 33 presses against the pressing block 30, the other end presses against the top wall of the second cavity, and when the pressing block 30 continuously presses against the object to be clamped, the second elastic member 33 can be compressed.

Referring to fig. 1 and 2, the guide frame 61 drives the pressing block 30 to move towards the clamping end of the clamping fingers 20, so that the pressing block 30 is close to the object to be clamped. After the pressing block 30 presses the object to be clamped, the pressing block 30 is pressed down for a certain distance, and meanwhile, the pressing block 30 is pressed down continuously due to the inertia of the movement. At this time, the pressing block 30 is limited by the object to be clamped, and cannot be pressed down further, and the guide frame 61 is still moving toward the object to be clamped. Then, the pressing block 30 is not moved, and the top wall of the second cavity continues to move toward the object to be clamped, so that the second elastic member 33 is compressed. The second elastic member 33 has a tendency to return to its original shape, and the elastic return force generated by the second elastic member can press the pressing block 30, so that the pressing block 30 presses the object. That is, the second elastic member 33 can elastically press the pressing block 30 against the object to be clamped, so that the object to be clamped is not easily damaged. Wherein, the second elastic member 33 may be a spring.

Further, in order to ensure the stability of the movement of the pressing block 30 along the second cavity, a third guide groove 62 is formed on the guide frame 61, and the third guide groove 62 extends towards the clamping end of the clamping finger 20; the pressing block 30 is provided with a third guide member 34, and the third guide member 34 is slidably connected with the third guide groove 62 and can move along the third guide groove 62. The third guide 34 and the third guide groove 62 can limit the moving direction of the pressing block 30 in the second cavity.

Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. Such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements but may alternatively include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The above description is only an example of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings, or which are directly or indirectly applied to other related technical fields, are intended to be included within the scope of the present application.

Claims

1. A clamping jaw for clamping an object to be clamped, comprising:

a housing (10), the housing (10) having a hollow first cavity (11) therein;

a clamping finger (20), wherein the clamping finger (20) is rotatably arranged on the shell (10), the clamping end of the clamping finger (20) protrudes out of the shell (10), and the clamping finger (20) is at least partially arranged in the first cavity (11);

the pressing block (30) penetrates through the first cavity (11) and can move towards the clamping end of the clamping finger (20) along the first cavity (11);

the elastic ring (40) is sleeved outside the shell (10) and the clamping finger (20), and can be used for restraining the clamping finger (20) and the shell (10) so as to fix the relative positions of the clamping finger (20) and the shell (10);

when the pressing block (30) presses towards the clamping end of the clamping finger (20) along the first cavity (11), the clamping finger (20) is pressed out of the first cavity (11) and outwards expanded along with the pressing block (30) gradually pressing against the clamping finger (20), and then the elastic ring (40) is expanded; when the pressing block (30) is far away from the clamping end of the clamping finger (20) along the first cavity (11), the clamping finger (20) is recovered to the first cavity (11) under the cooperation of the elastic restoring force of the elastic ring (40).

2. A clamping jaw according to claim 1, characterized in that the housing (10) is provided with a first guide groove (12) extending towards the clamping end of the clamping finger (20), the pressing block (30) is provided with a first movable member (13), and the first movable member (13) is slidably connected with the first guide groove (12) and can move along the first guide groove (12).

3. A jaw as claimed in claim 1, characterized in that said first cavity (11) extends through said housing (10), and that said pressing piece (30) is movable along said first cavity (11) towards the gripping end of said gripping fingers (20), at least part of said pressing piece (30) being able to pass through said first cavity (11) and press against said object to be gripped.

4. A jaw as claimed in claim 3, characterized by further comprising a pressure finger (50), said pressure finger (50) being arranged on said pressing block (30) with an end of said pressure finger (50) protruding from said pressing block (30).

5. A clamping jaw as claimed in claim 4, characterized in that said pressing block (30) is provided with a second guide groove (31) extending towards the clamping end of said clamping finger (20), said pressing finger (50) is provided with a second movable member (51), said second movable member (51) is slidably connected with said second guide groove (31) and can move along said second guide groove (31); a first elastic piece (52) is arranged between the second movable piece (51) and the second guide groove (31), one end of the first elastic piece (52) abuts against the second movable piece (51), the other end of the first elastic piece (52) abuts against the top wall of the second guide groove (31), and when the second movable piece (51) moves along the second guide groove (31), the first elastic piece (52) can be compressed.

6. A jaw as claimed in claim 1, characterized in that the portion of said finger (20) exposed in said first cavity (11) and pressed against said pressing block (30) is a bevel; or the part of the pressing block (30) which is pressed against the clamping finger (20) is an inclined surface.

7. A jaw as claimed in claim 6, characterized in that the portion of said gripping finger (20) exposed inside said first cavity (11) is inclined towards said pressing block (30) from the end of said gripping finger (20) connecting said outer shell (10) to the gripping end of said gripping finger (20); the pressing block (30) is inwards recessed at a position corresponding to the clamping finger (20) to form a first groove (32) capable of accommodating the clamping finger (20); when the pressing block (30) moves towards the clamping end of the clamping finger (20), the first groove (32) pushes the clamping finger (20) to be opened outwards.

8. A jaw as claimed in claim 1, characterized in that said outer wall portion of said casing (10) is recessed inwards, constituting a second recess (14) able to house said elastic ring (40).

9. A jaw as claimed in claim 1, characterized by further comprising a drive assembly (60), said drive assembly (60) being connected to and driving said pressing block (30) along said first cavity (11) towards the gripping ends of said gripping fingers (20).

10. A clamping jaw as claimed in claim 9, characterized in that said driving assembly (60) comprises a guide frame (61), said guide frame (61) has a hollow second cavity therein, one end of said pressing block (30) far from said first cavity (11) is inserted into said second cavity, a second elastic member (33) is disposed between said pressing block (30) and said second cavity, one end of said second elastic member (33) is pressed against said pressing block (30), the other end is pressed against the top wall of said second cavity, and when said pressing block (30) is continuously pressed against said object to be clamped, said second elastic member (33) can be compressed.