CN218776153U

CN218776153U - Self-locking connecting rod mechanism for clamp

Info

Publication number: CN218776153U
Application number: CN202222058602.5U
Authority: CN
Inventors: 张晨
Original assignee: Individual
Current assignee: Chengdu Yongxinhang Machinery Equipment Co ltd
Priority date: 2022-08-05
Filing date: 2022-08-05
Publication date: 2023-03-31
Anticipated expiration: 2032-08-05

Abstract

The utility model belongs to the technical field of anchor clamps, especially, but a link mechanism for auto-lock of anchor clamps, including base and symmetrical fixed connection in the support column of base upper surface and setting up the anchor clamps mechanism on the base upper surface, two the upper end fixedly connected with roof of support column, still include the link assembly that sets up the roof bottom surface, link assembly includes cylinder, movable block, connecting rod one, connecting rod two, connecting rod three, fixed block, U type seat, fly leaf and sliding sleeve, the cylinder is fixed in the upper surface central point department of roof, the output shaft tip of cylinder is fixedly connected with the movable block, the both sides of movable block all are connected with two connecting rod one through a round pin axle rotation; the self-locking mechanism is beneficial to realizing self-locking when the cylinder cannot work normally, further can continuously clamp a workpiece, is beneficial to limiting the moving track of the connecting rod assembly, and improves the self-locking capacity of the clamp.

Description

Self-locking connecting rod mechanism for clamp

Technical Field

The utility model belongs to the technical field of anchor clamps, concretely relates to but link mechanism of auto-lock for anchor clamps.

Background

The clamp with the cylinder as an executing element is widely adopted on modern machining and measuring equipment, and the clamp used on a lathe is taken as an example.

However, some existing clamps do not have a self-locking function, and when the cylinder cannot work normally in the using process, the connecting rod mechanism of the clamp can be driven to move along with the cylinder, so that the clamp cannot clamp a workpiece continuously when the cylinder is damaged.

To this end, a self-lockable linkage for a clamp is designed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

To solve the problems raised in the background art described above. The utility model provides a but link mechanism of auto-lock for anchor clamps has the characteristics that can realize link mechanism auto-lock, improve link mechanism auto-lock ability.

In order to achieve the above purpose, the utility model provides a following technical scheme: a self-lockable connecting rod mechanism for a clamp comprises a base, support columns symmetrically and fixedly connected to the upper surface of the base, a clamp mechanism arranged on the upper surface of the base, top plates fixedly connected to the upper ends of the two support columns, and connecting rod assemblies arranged on the bottom surfaces of the top plates;

the connecting rod assembly comprises a cylinder, a movable block, a first connecting rod, a second connecting rod, a third connecting rod, a fixed block, a U-shaped seat, a movable plate and a sliding sleeve, the cylinder is fixedly installed at the center of the upper surface of the top plate, the output end of the cylinder is fixedly connected with the movable block, two sides of the movable block are rotatably connected with the first connecting rod and the second connecting rod through a pin shaft, two connecting rods are rotatably connected with the second connecting rod and the third connecting rod and two connecting rods are far away from the second connecting rod, one end of the third connecting rod is rotatably connected with the fixed block and two fixed block symmetries are arranged on the bottom surface of the top plate, the third connecting rod is far away from one end of the second connecting rod is rotatably connected with the U-shaped seat through a pin shaft, two U-shaped seat symmetries are arranged on the upper surface of the movable plate, the through groove is fixedly connected with the sliding sleeve, the bottom surface of the movable plate is fixedly connected with an upper clamp in the clamp mechanism, and two sliding sleeves are slidably connected on the surface of the support column.

As the utility model relates to a but link mechanism of auto-lock for anchor clamps is preferred, still include screw rod one, a screw rod fixed connection be in the upper surface of fixed block, the surperficial threaded connection of screw rod one has nut one, the fixed block passes through screw rod one with the cooperation of nut one with roof fixed connection.

As the utility model relates to a but link mechanism of auto-lock for anchor clamps is preferred, still includes screw rod two, two fixed connection of screw rod are in the bottom surface of U type seat, the surperficial threaded connection of screw rod two has nut two, U type seat passes through screw rod two with the cooperation of nut two with fly leaf fixed connection.

The self-lockable connecting rod mechanism for the clamp is preferable, and further comprises a limiting component arranged on the surface of the supporting column;

the limiting assembly comprises a first clamping block, a second clamping block, a third screw and a third nut, one surface of the first clamping block is symmetrically and fixedly connected with the third screw, the surface of the third screw is in threaded connection with the third nut, and the first clamping block is fixedly connected with the second clamping block through the cooperation of the third screw and the third nut.

Compared with the prior art, the beneficial effects of the utility model are that: add link assembly in this application, be favorable to realizing the auto-lock at the cylinder normal operating hour, and then can continue to carry out the centre gripping to the work piece, add spacing subassembly simultaneously, be favorable to prescribing a limit to link assembly's removal orbit, improve the auto-lock ability of anchor clamps.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a connection structure diagram of the middle position-limiting component and the supporting column of the present invention;

FIG. 3 is a disassembled structure view of the middle position-limiting assembly of the present invention;

FIG. 4 is a schematic structural view of a connecting rod assembly according to the present invention;

in the figure:

1. a base; 2. a clamp mechanism; 3. a top plate; 4. a support pillar;

5. a connecting rod assembly; 51. a cylinder; 52. a movable block; 53. a first connecting rod; 54. a second connecting rod; 55. a third connecting rod; 56. a fixed block; 57. a U-shaped seat; 58. a movable plate; 59. a sliding sleeve; 510. a first screw rod; 511. a second screw; 512. a first nut; 513. a second nut;

6. a limiting component; 61. a first clamping block; 62. a second clamping block; 63. a third screw; 64. and a third nut.

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 some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 and 2;

the utility model provides a link mechanism that is used for auto-lock of anchor clamps, includes base 1 and symmetry fixed connection and is in the support column 4 and the setting of 1 upper surface of base are in the anchor clamps mechanism 2 of 1 upper surface of base, two the upper end fixedly connected with roof 3 of support column 4.

In this embodiment: when using, the mounting hole that will be used for this link mechanism of anchor clamps to set up through base 1 surface is fixed on the operation mesa, then be connected this link mechanism with peripheral hardware power supply unit through the power cord, through adjusting last anchor clamps in anchor clamps mechanism 2 and removing on the support column 4 surface of fixed connection in roof 3 bottom surface, thereby can cooperate the centre gripping of lower anchor clamps realization to the work piece in the anchor clamps mechanism 2, however, some current anchor clamps do not possess self-locking function, when cylinder 51 can not normally work in the use, the link mechanism that can drive anchor clamps takes place to remove thereupon, thereby make anchor clamps can't be when cylinder 51 damages, continue to carry out the centre gripping to the work piece, borrow this on add link assembly 5 and spacing subassembly 6.

Further, the following steps:

as shown in fig. 1 to 4:

with the above in mind: the connecting rod assembly 5 comprises a cylinder 51, a movable block 52, a first connecting rod 53, a second connecting rod 54, a third connecting rod 55, fixed blocks 56, U-shaped seats 57, a movable plate 58 and sliding sleeves 59, the cylinder 51 is fixedly installed at the center of the upper surface of the top plate 3, the movable block 52 is fixedly connected to the end portion of an output shaft of the cylinder 51, two first connecting rods 53 are rotatably connected to two sides of the movable block 52 through a first pin shaft, two second connecting rods 54 are rotatably connected between the two first connecting rods 53 through a second pin shaft, the two third connecting rods 54 are rotatably connected to the third connecting rod 55 through a second pin shaft, one ends, far away from the third connecting rod 55, of the two second connecting rods 54 are rotatably connected to the fixed blocks 56 through a fourth pin shaft, the two fixed blocks 56 are symmetrically arranged on the bottom surface of the top plate 3, one ends, far away from the second connecting rods 54, of the three connecting rods are rotatably connected to the U-shaped seats 57 through a third pin shaft, the two U-shaped seats 57 are symmetrically arranged on the upper surface of the movable plate 58, the sliding sleeves 59 are fixedly connected to the upper clamp in the upper clamp mechanism 2 in the through grooves symmetrically arranged on the surfaces of the movable plate 58, and the two sliding sleeves 4.

In this embodiment: when the clamp is used, the air cylinder 51 is started to operate through the control button, the air cylinder 51 extends to drive the movable block 52 to move downwards, the movable block 52 moves downwards to drive one ends of the first connecting rods 53 on the two sides to move downwards, the other ends of the first connecting rods 53 on the two sides further push the second connecting rod 54 to rotate around the fixed block 56, and meanwhile, the third connecting rod 55 is pushed to rotate on the inner wall surface of the U-shaped seat 57, so that the second connecting rod 54 and the third connecting rod 55 gradually tend to be linear, further, the third connecting rod 55 drives the movable plate 58 to move downwards on the surface of the supporting column 4 through the sliding sleeve 59, and the clamp mechanism 2 can be driven to clamp a workpiece.

It should be noted that: the first pin shaft, the second pin shaft and the third pin shaft all adopt the same structure, and the pin shafts are common in life, are standardized fasteners, can move relative to a connected piece, and are mainly used at the hinged part of two parts to form hinge connection.

In an alternative embodiment, the fixing device further comprises a first screw 510, the first screw 510 is fixedly connected to the upper surface of the fixing block 56, a first nut 512 is threadedly connected to the surface of the first screw 510, and the fixing block 56 is fixedly connected with the top plate 3 through the cooperation of the first screw 510 and the first nut 512.

In this embodiment: before use, the first screw 510 penetrates through a first mounting hole formed in the surface of the top plate 3 and is screwed through a first nut 512, so that the fixing block 56 can be fixed to the bottom surface of the top plate 3.

In an alternative embodiment, the movable plate 58 further comprises a second screw 511, the second screw 511 is fixedly connected to the bottom surface of the U-shaped seat 57, a second nut 513 is connected to the surface of the second screw 511 in a threaded manner, and the U-shaped seat 57 is fixedly connected with the movable plate 58 through the matching of the second screw 511 and the second nut 513.

In this embodiment: before use, the second screw 511 is inserted into the second mounting hole formed on the surface of the movable plate 58, and then the second nut 513 is screwed, so that the U-shaped seat 57 can be fixedly connected to the upper surface of the movable plate 58.

In an alternative embodiment, the limiting assembly 6 includes a first clamping block 61, a second clamping block 62, a third screw 63 and a third nut 64, one surface of the first clamping block 61 is symmetrically and fixedly connected with the third screw 63, the surfaces of the third screw 63 are all in threaded connection with the third nut 64, and the first clamping block 61 is fixedly connected with the second clamping block 62 through the cooperation of the third screw 63 and the third nut 64.

In this embodiment: before the connecting rod mechanism is used, one surface, provided with the clamping groove I, of the first clamping block 61 is clamped on the surface of the supporting column 4, then the four screw rods III 63 are inserted into the through holes formed in the surface of the second clamping block 62, the nuts III 64 are screwed on the surface of the screw rods III 63, the positions of the first clamping block 61 and the second clamping block 62 are adjusted, the nuts III 64 are screwed continuously, the first clamping block 61 and the second clamping block 62 are fixed on the surface of the supporting column 4, and when the connecting rod II 54 and the connecting rod III 55 are in a vertical state, the positions of the connecting rod II 54 and the connecting rod III 55 can be limited, so that self-locking of the connecting rod mechanism can be achieved.

It should be noted that: when the second connecting rod 54 and the third connecting rod 55 are in a linear state, the acting force between the second connecting rod 54 and the third connecting rod 55 is along the vertical direction at the moment, and no component force in other directions is generated, so that the position between the second connecting rod 54 and the third connecting rod 55 is not changed even if the cylinder 51 is damaged during clamping, and further self-locking can be realized.

The working principle is as follows: when in use, the link mechanism for the clamp is fixed on an operation table top through a mounting hole formed in the surface of the base 1, then the link mechanism is connected with external power supply equipment through a power cord, then the screw rod I510 penetrates through a mounting hole I formed in the surface of the top plate 3 and is screwed through the nut I512, so that the fixing block 56 can be fixed on the bottom surface of the top plate 3, the screw rod II 511 penetrates through a mounting hole II formed in the surface of the movable plate 58, then the nut II 513 is screwed, so that the U-shaped seat 57 can be fixedly connected to the upper surface of the movable plate 58, then the link rod I53, the link rod II 54 and the link rod III 55 are connected through a pin shaft, the side, provided with the clamping groove I, of the clamping block I61 is clamped on the surface of the supporting column 4, and then the four screw rods III 63 are inserted into through holes formed in the surface of the clamping block II 62, and the third nut 64 is screwed on the surface of the third screw 63, then the positions of the first clamping block 61 and the second clamping block 62 are adjusted, the third nut 64 is screwed continuously, the first clamping block 61 and the second clamping block 62 are fixed on the surface of the support pillar 4, when in use, the cylinder 51 is started to operate through the control button, the cylinder 51 extends to drive the movable block 52 to move downwards, the movable block 52 moves downwards to drive one end of the first connecting rod 53 at two sides to move downwards, the other end of the first connecting rod 53 at two sides further pushes the second connecting rod 54 to rotate around the fixed block 56, and simultaneously pushes the third connecting rod 55 to rotate on the inner wall surface of the U-shaped seat 57, so that the second connecting rod 54 and the third connecting rod 55 gradually tend to be linear, and further the third connecting rod 55 drives the movable plate 58 to move downwards on the surface of the support pillar 4 by using the sliding sleeve 59, thereby the clamp mechanism 2 can be driven to clamp a workpiece, and when the second connecting rod 54 and the third connecting rod 55 are in a vertical state through the limiting assembly 6, the positions of the second link 54 and the third link 55 are limited, so that the self-locking of the link mechanism can be realized.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a link mechanism that is used for auto-lock of anchor clamps, includes base (1) and symmetry fixed connection be in support column (4) and the setting of base (1) upper surface are in anchor clamps mechanism (2) of base (1) upper surface, two the upper end fixedly connected with roof (3) of support column (4), its characterized in that: the connecting rod assembly (5) is arranged on the bottom surface of the top plate (3);

the connecting rod assembly (5) comprises an air cylinder (51), a movable block (52), a first connecting rod (53), a second connecting rod (54), a third connecting rod (55), a fixed block (56), a U-shaped seat (57), a movable plate (58) and a sliding sleeve (59), the air cylinder (51) is fixedly installed at the center of the upper surface of the top plate (3), the end part of an output shaft of the air cylinder (51) is fixedly connected with the movable block (52), two sides of the movable block (52) are rotatably connected with the first connecting rod (53) through a pin shaft, two first connecting rods (53) are rotatably connected with the second connecting rod (54) through a pin shaft, the third connecting rod (55) is rotatably connected between the two first connecting rods (53) through a pin shaft, one ends, far away from the third connecting rod (55), of the two second connecting rods (54) are rotatably connected with the fixed block (56) through a pin shaft, the two ends, far away from the third connecting rod (55), are symmetrically arranged on the bottom surface of the top plate (3), one ends, far away from the second connecting rod (54), are rotatably connected with the U-shaped seat (57) through pins, the two movable plate (57), the movable block (58) are symmetrically arranged on the surface of the movable plate (58), and the sliding sleeve (59), the bottom surface of the movable plate (58) is fixedly connected with an upper clamp in the clamp mechanism (2), and the two sliding sleeves (59) are connected to the surfaces of the two supporting columns (4) in a sliding manner.

2. The self-lockable linkage for a clamp of claim 1, characterized in that: the fixing block is characterized by further comprising a first screw rod (510), wherein the first screw rod (510) is fixedly connected to the upper surface of the fixing block (56), a first nut (512) is connected to the surface of the first screw rod (510) in a threaded mode, and the fixing block (56) is fixedly connected with the top plate (3) through the matching of the first screw rod (510) and the first nut (512).

3. The self-lockable linkage for a clamp of claim 1, characterized in that: the U-shaped seat is characterized by further comprising a second screw rod (511), the second screw rod (511) is fixedly connected to the bottom surface of the U-shaped seat (57), a second nut (513) is connected to the surface of the second screw rod (511) in a threaded mode, and the U-shaped seat (57) is fixedly connected with the movable plate (58) through the matching of the second screw rod (511) and the second nut (513).

4. The self-lockable linkage for a clamp of claim 1, characterized in that: the device also comprises a limiting component (6) arranged on the surface of the supporting column (4);

the limiting assembly (6) comprises a first clamping block (61), a second clamping block (62), a third screw (63) and a third nut (64), wherein one surface of the first clamping block (61) is symmetrically and fixedly connected with the third screw (63), the surfaces of the third screw (63) are all in threaded connection with the third nut (64), and the first clamping block (61) is fixedly connected with the second clamping block (62) through the matching of the third screw (63) and the third nut (64).