CN214237184U

CN214237184U - Precision machining clamping equipment

Info

Publication number: CN214237184U
Application number: CN202022806576.0U
Authority: CN
Inventors: 不公告发明人
Original assignee: Xi'an Qunjian Aviation Precision Manufacturing Co ltd
Current assignee: Xi'an Qunjian Aviation Precision Manufacturing Co ltd
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2021-09-21
Anticipated expiration: 2030-11-30

Abstract

The utility model provides a precision machining clamping device, which relates to the technical field of precision machinery, wherein the outer end of a spring is fixedly connected with a limiting block, connecting rods are arranged at the front side and the rear side of the limiting block, inner shafts penetrate through the inner ends and the outer ends of the connecting rods, the inner shafts at the inner sides are rotatably connected with the limiting block, movable plates are arranged at the outer sides of the connecting rods, the inner shafts at the outer sides are rotatably connected with the movable plates, pressing shafts are fixed on the bottom surfaces of the movable plates, a rotating shaft is rotatably connected with the top of a stepping motor, a rotating plate is fixedly sleeved on the outer wall of the rotating shaft, the connecting rods pull the outer sides of the movable plates inwards when moving towards the inner sides along with the limiting block, at the moment, the pressing shafts can be close to a workpiece, four sides of the workpiece are further fastened through the four pressing shafts, a good clamping effect is achieved on the workpiece through the four pressing shafts and a pre-tightening plate, the workpiece is stably clamped, the problem that the workpiece is easy to become loose in the machining process is solved, and the workpiece with a part of circular shape is difficult to clamp and is inconvenient to work.

Description

Precision machining clamping equipment

Technical Field

The utility model belongs to the technical field of the precision machine technique and specifically relates to a precision machining centre gripping equipment is related to.

Background

The machine is a tool device which can help people to reduce work difficulty or save labor, and the complex machine is composed of two or more simple machines. These relatively complex machines are often called machines. From a structural and kinematic point of view, the mechanisms and machines are not distinct and are broadly called machines. The term "mechanical" is composed of two Chinese characters of "mechanical" and "mechanical". "machine" -refers to a local key work piece; "mechanical" -ancient Chinese refers to a whole instrument or utensil. The two characters are connected together to form the term "mechanical", so that the general mechanical concept is formed.

When the existing precision machining clamping equipment clamps a workpiece, the number of transmission steps is large, the clamping positions for the workpiece are few, the workpiece is easy to loosen in the machining process, and the workpiece with a part of circular shape is difficult to clamp, so that the workpiece is inconvenient to work.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: the workpiece is easy to loosen in the machining process, and the workpiece with a part of circular shape is difficult to clamp, so that the workpiece is inconvenient to work, and the precision machining clamping equipment is provided for solving the problems in the prior art.

In order to solve the prior art problem, the utility model discloses a precision machining clamping device, which comprises a clamping plate and a stepping motor, wherein the stepping motor is arranged in the middle of the bottom surface of the clamping plate;

the left side and the right side of the bottom surface of the clamping plate are respectively provided with a transverse limiting channel, the inner side of each limiting channel is fixedly connected with a first spring, the outer side of each limiting channel is connected with a limiting block in a sliding mode, the outer end of each first spring is fixedly connected with the limiting block, the front side and the rear side of each limiting block are respectively provided with a connecting rod, inner shafts penetrate through the inner ends and the outer ends of the connecting rods, the inner shafts on the inner sides are rotatably connected with the limiting blocks, a movable plate is arranged on the outer side of each connecting rod, the inner shafts on the outer sides are rotatably connected with the movable plate, and the bottom surface of each movable plate is fixedly provided with a pressing shaft;

step motor top is rotated and is connected with the pivot, and the pivot outer wall cup joints and is fixed with the commentaries on classics board, commentaries on classics board left side place ahead and right back all are equipped with the bending axle, and just the axle inside and outside both ends of buckling all are fixed with changes the core, inboard change the core and change the board and rotate and be connected, and the outside change core and stopper sliding connection.

Preferably, both sides all are equipped with the pretension board around the grip block, and the equal fixedly connected with in pretension inboard inserts the post, insert the equal fixedly connected with spring two in post inboard, and insert the post and to run through into the inside front and back side of grip block towards the inboard, the embedding of spring two is installed inside the grip block.

Preferably, the rotating plate rotates along with the rotation of the rotating shaft, and the bending shaft is rotatably connected with the rotating plate and the limiting block through the rotating core.

Preferably, the limiting block translates left and right along with the rotation of the bending shaft, and the connecting rod is rotatably connected with the limiting block and the movable plate through the inner shaft.

Preferably, the movable plate rotates along with the rotation of the connecting rod, and the pressing shafts are arranged on four sides and are encircled to be circular.

Preferably, the pressing shaft is located on the outer side of the pre-tightening plate, and the pre-tightening plate is arc-shaped.

Compared with the prior art, the beneficial effects of the utility model are that:

the workpiece is placed in the middle of the top surface of the clamping plate, then the pre-tightening plates are pulled outwards, the second spring is forced to stretch, the inserting column moves outwards in the clamping plate, the distance between the pre-tightening plates is enlarged, the pre-tightening plates are pulled to the edge of the workpiece, then the pre-tightening plates are loosened, the inserting column is pulled back through the second spring, the two pre-tightening plates can pre-tighten the workpiece, the rotating shaft is driven by the stepping motor to rotate clockwise by 45 degrees, meanwhile, the pre-tightening plates rotate clockwise, the inner sides of the bending shafts can swing by 45 degrees, the bending shafts, the pre-tightening plates and the limiting blocks can move through the rotating cores, the inner sides of the two bending shafts swing to be arranged back and forth, meanwhile, the limiting blocks are pulled inwards by the bending shafts, the limiting blocks keep stable translation in the limiting channels, meanwhile, the first spring is compressed, when the limiting blocks translate, the inner ends of the connecting rods are pulled by the limiting blocks, and the connecting rods, the limiting blocks and the moving plates can move through the inner shafts, when the connecting rod moves towards the inner side along with the limiting block, the outer side of the movable plate is pulled towards the inner side, the pressing shafts can be close to the workpiece, four sides of the workpiece are further fastened through the four pressing shafts, a good clamping effect is achieved on the workpiece through the four pressing shafts and the pre-tightening plate, and the workpiece is clamped stably.

Drawings

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

fig. 2 is a schematic structural view of the stepping motor of the present invention;

FIG. 3 is a schematic view of the structure of the insert post of the present invention;

FIG. 4 is a schematic bottom view of the clamping plate structure of the present invention;

fig. 5 is a bottom working schematic view of the holding plate structure of the present invention.

The labels in the figure are: the clamping device comprises a clamping plate 1, a limiting channel 101, a first spring 102, a pretightening plate 2, an inserting column 201, a second spring 202, a stepping motor 3, a rotating shaft 301, a rotating plate 302, a bending shaft 4, a rotating core 401, a limiting block 5, a connecting rod 6, an inner shaft 601, a movable plate 7 and a pressing shaft 701.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.

Referring to fig. 1-5, a precision machining clamping apparatus includes a clamping plate 1 and a stepping motor 3, wherein the stepping motor 3 is disposed in a bottom surface of the clamping plate 1;

the left side and the right side of the bottom surface of the clamping plate 1 are respectively provided with a transverse limiting channel 101, the inner side of each limiting channel 101 is fixedly connected with a first spring 102, the outer side of each limiting channel 101 is slidably connected with a limiting block 5, the outer end of each first spring 102 is fixedly connected with the corresponding limiting block 5, the front side and the rear side of each limiting block 5 are respectively provided with a connecting rod 6, inner shafts 601 penetrate through the inner ends and the outer ends of the connecting rods 6, the inner shafts 601 at the inner sides are rotatably connected with the limiting blocks 5, a movable plate 7 is arranged at the outer side of each connecting rod 6, the inner shafts 601 at the outer sides are rotatably connected with the movable plates 7, and the bottom surfaces of the movable plates 7 are respectively fixed with a pressing shaft 701;

the front side and the rear side of the clamping plate 1 are respectively provided with a pre-tightening plate 2, the inner sides of the pre-tightening plates 2 are respectively fixedly connected with an inserting column 201, the inner sides of the inserting columns 201 are respectively fixedly connected with a second spring 202, the inserting columns 201 penetrate into the front side and the rear side of the inner part of the clamping plate 1 towards the inner side, and the second springs 202 are embedded in the clamping plate 1;

specifically, firstly, a clamping plate 1 is mounted on an external machining table in a suspended mode, then the bottom of a stepping motor 3 and the machining table are mounted, then a round workpiece to be machined is picked up, the workpiece is placed in the middle of the top surface of the clamping plate 1, then a pre-tightening plate 2 is pulled outwards, a second spring 202 is forced to stretch, an inserting column 201 moves outwards in the clamping plate 1, the distance between the pre-tightening plates 2 is enlarged, the pre-tightening plates 2 are pulled to the edge of the workpiece, then the pre-tightening plates 2 are loosened, the inserting column 201 is pulled back through the second spring 202, and the two pre-tightening plates 2 can pre-tighten the workpiece;

the top of the stepping motor 3 is rotatably connected with a rotating shaft 301, the outer wall of the rotating shaft 301 is fixedly sleeved with a rotating plate 302, the left front part and the right rear part of the rotating plate 302 are respectively provided with a bending shaft 4, the inner end and the outer end of the bending shaft 4 are respectively fixedly provided with a rotating core 401, the rotating core 401 at the inner side is rotatably connected with the rotating plate 302, and the rotating core 401 at the outer side is slidably connected with a limiting block 5;

the rotating plate 302 rotates along with the rotation of the rotating shaft 301, and the bending shaft 4 is rotatably connected with the rotating plate 302 and the limiting block 5 through the rotating core 401;

the limiting block 5 translates left and right along with the rotation of the bending shaft 4, and the connecting rod 6 is rotatably connected with the limiting block 5 and the movable plate 7 through the inner shaft 601;

further, the rotating shaft 301 is driven by the stepping motor 3 to rotate 45 degrees clockwise, meanwhile, the pre-tightening plate 2 rotates clockwise, the inner side of the bending shaft 4 can swing 45 degrees, the bending shaft 4, the pre-tightening plate 2 and the limiting block 5 can move through the rotating core 401, the inner sides of the two bending shafts 4 swing to be arranged front and back, meanwhile, the limiting block 5 is pulled towards the inner side by the bending shaft 4, the limiting block 5 keeps stable translation in the limiting channel 101, and meanwhile, the first spring 102 is compressed;

the movable plate 7 rotates along with the rotation of the connecting rod 6, and the pressing shafts 701 are arranged on four sides and are encircled to be circular; the pressing shaft 701 is positioned on the outer side of the pre-tightening plate 2, and the pre-tightening plate 2 is arc-shaped;

when the limiting block 5 translates, the inner end of the connecting rod 6 is pulled by the limiting block 5, the connecting rod 6, the limiting block 5 and the movable plate 7 have mobility through the inner shaft 601, the connecting rod 6 pulls the outer side of the movable plate 7 inwards when moving towards the inner side along with the limiting block 5, at this time, the pressing shafts 701 can be close to the workpiece, the four sides of the workpiece are further fastened through the four pressing shafts 701, a good clamping effect is achieved on the workpiece through the four pressing shafts 701 and the pre-tightening plate 2, and the workpiece is stably clamped;

and finally, after the workpiece is machined, the motor drives the rotating shaft 301 to rotate anticlockwise by 45 degrees, the bending shaft 4 is reset, the first spring 102 pops the limiting block 5 outwards, the connecting rod 6, the movable plate 7 and the pressing shaft 701 can be reset, and the pressing shaft 701 is separated from the workpiece and can take out the workpiece.

The present invention has been described in relation to the above embodiments, which are only examples for implementing the present invention. It should be noted that the disclosed embodiments do not limit the scope of the invention. On the contrary, all changes and modifications which do not depart from the spirit and scope of the present invention are deemed to fall within the scope of the present invention.

Claims

1. The utility model provides a precision machining centre gripping equipment, includes grip block (1) and step motor (3), step motor (3) set up in grip block (1) bottom surface middle part, its characterized in that:

the left side and the right side of the bottom surface of the clamping plate (1) are respectively provided with a transverse limiting channel (101), the inner side of each limiting channel (101) is fixedly connected with a first spring (102), the outer side of each limiting channel (101) is connected with a limiting block (5) in a sliding mode, the outer end of each first spring (102) is fixedly connected with the corresponding limiting block (5), the front side and the rear side of each limiting block (5) are respectively provided with a connecting rod (6), inner shafts (601) penetrate through the inner ends and the outer ends of the connecting rods (6), the inner shafts (601) on the inner sides are rotatably connected with the limiting blocks (5), a movable plate (7) is arranged on the outer side of each connecting rod (6), the inner shafts (601) on the outer sides are rotatably connected with the movable plates (7), and;

step motor (3) top is rotated and is connected with pivot (301), and pivot (301) outer wall cup joints and is fixed with commentaries on classics board (302), change board (302) left side place ahead and right back and all be equipped with bending axle (4), and the inside and outside both ends of bending axle (4) all are fixed with commentaries on classics core (401), inboard change core (401) and change board (302) and rotate and be connected, and the outside change core (401) and stopper (5) sliding connection.

2. A precision machining clamping apparatus according to claim 1, wherein: both sides all are equipped with pretension board (2) around grip block (1), and pretension board (2) inboard equal fixedly connected with inserts post (201), insert the equal fixedly connected with spring two (202) of post (201) inboard, and insert post (201) and run through into grip block (1) inside front and back side toward the inboard, spring two (202) embedding is installed inside grip block (1).

3. A precision machining clamping apparatus according to claim 1, wherein: the rotating plate (302) rotates along with the rotation of the rotating shaft (301), and the bending shaft (4) is rotatably connected with the rotating plate (302) and the limiting block (5) through the rotating core (401).

4. A precision machining clamping apparatus according to claim 1, wherein: the limiting block (5) translates left and right along with the rotation of the bending shaft (4), and the connecting rod (6) is rotatably connected with the limiting block (5) and the movable plate (7) through the inner shaft (601).

5. A precision machining clamping apparatus according to claim 1, wherein: the movable plate (7) rotates along with the rotation of the connecting rod (6), and the pressing shafts (701) are arranged on four sides and are circularly surrounded.

6. A precision machining clamping apparatus according to claim 2, wherein: the pressing shaft (701) is located on the outer side of the pre-tightening plate (2), and the pre-tightening plate (2) is arc-shaped.