CN219542423U

CN219542423U - Synchronous clamping device for machining

Info

Publication number: CN219542423U
Application number: CN202223451783.4U
Authority: CN
Inventors: 满江楼; 吴明生; 张敏; 王志刚; 孔丽丽
Original assignee: Shanghai Taoyu Precision Machinery Co ltd; Sinopec Siji Petroleum Machinery Co Ltd
Current assignee: Shanghai Taoyu Precision Machinery Co ltd; Sinopec Siji Petroleum Machinery Co Ltd
Priority date: 2022-12-22
Filing date: 2022-12-22
Publication date: 2023-08-18
Anticipated expiration: 2032-12-22

Abstract

The utility model discloses a synchronous clamp for machining, which comprises a base body, an end cover, a synchronous mechanism, soft claws and a base plate, wherein the synchronous mechanism comprises a pull rod arranged in the middle and two groups of mandrels symmetrically arranged along the axis of the pull rod, the soft claws are respectively arranged at the tops of the two groups of mandrels, after the pull rod is connected with an external cylinder, a clamping block moves downwards along with the pull rod when the pull rod moves downwards to drive the mandrels to move downwards along the radial direction, the distances between the top ends and the bottom ends of the two mandrels are gradually reduced, the two groups of soft claws move towards each other to clamp and fix a workpiece, the base plate moves downwards to drive the workpiece to move downwards, and then the workpiece is pulled to move downwards when being clamped, so that the clamping is tighter.

Description

Synchronous clamping device for machining

Technical Field

The utility model relates to the field of machining, in particular to a synchronous clamp for machining.

Background

The CNC high-speed machining center is novel numerical control machining equipment, and can finish machining of workpieces in various modes including milling, cutting, polishing and the like; the chuck is a mechanical device used for clamping a workpiece on a CNC high-speed machining center, and the chuck realizes workpiece clamping and positioning by utilizing radial movement of movable claws uniformly distributed on the chuck.

In the utility model of patent application CN202021873166.1, a chuck for machining is proposed for fixedly clamping a workpiece. However, in the actual use process, the diameter of the chuck is generally larger (the maximum chuck diameter exceeds 1 m) in the existing design, and meanwhile, the chuck can be unfolded when the movable clamping jaws are used, so that the reserved installation position of the actual chuck needs to exceed the size of the chuck, and the installation of the chuck needs to occupy more space resources, thereby influencing the integral arrangement of a processing assembly in CNC high-speed processing, and making the components of the CNC high-speed processing center huge and bulky;

meanwhile, the chuck has good clamping effect on the regular shaft body, the plate body and the block body, but has poor clamping effect on the irregular workpiece, when the chuck is used, the movable clamping jaw on the chuck is required to be specifically designed for clamping the irregular workpiece, because the size of the integral component of the chuck is large, the cost of the specific design is relatively high, and the chuck with the specific design is additionally arranged in the CNC high-speed machining center, the originally tense space is more tense, and the problem that the occupied space of the chuck is overlarge is amplified.

Therefore, a clamping device which is more flexible to use and occupies smaller space is necessary to design on the CNC high-speed machining center.

Disclosure of Invention

The utility model aims to solve the defects in the prior art, and provides a synchronous clamp for machining.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: comprising the following steps: the base body, the end cover sets up the bottom at the base body, the intermediate position department of end cover is provided with the mounting hole, two side symmetry of mounting hole is provided with two sets of recesses, with the actuating mechanism, including setting up in the pull rod at middle part and two sets of dabbers that set up along pull rod axis symmetry, two sets of dabbers are the V font setting, the bottom and the mounting hole of pull rod are connected, the soft claw is provided with two sets of, two sets of soft claws set up respectively at the top of two sets of dabbers, the clamping face of two sets of soft claws sets up in opposite directions, the backing plate is opened there is airtight detection hole, the backing plate sets up in the top of dabber, play support bearing effect.

Preferably, the bottom of base body has been seted up the mating holes, and the top of mating holes is provided with the baffle, and the size looks adaptation of mating holes and end cover, first through-hole and the second through-hole with dabber looks adaptation are seted up to the baffle.

Preferably, the clamping block is fixedly connected to the middle of the pull rod, the clamping groove is formed in the inner side of the mandrel, and two ends of the clamping block are respectively and slidably connected with the clamping groove.

Preferably, the pull rod penetrates through the mounting hole, and the pull rod is in sliding connection with the mounting hole.

Preferably, the groove is arranged in the radial direction of the first through hole and the mandrel, and the bottom surface of the clamping block is parallel to the plane of the end cover.

Preferably, the top end of the base body is provided with a cover plate, and a limit groove matched with the mandrel is formed in the middle position of the inner side of the cover plate.

Preferably, the inner side surface of the soft claw is arranged according to the end surface adaptation of the workpiece, and the inner side surface of the soft claw is also provided with anti-skid patterns.

Preferably, the end cover is fixed with the base body in a threaded manner, a plurality of groups of threaded mounting holes are formed in the bottom surface of the base body, a plurality of air inlet holes are formed in the side wall of the base body, and the air inlet holes are matched with the airtight detection holes.

Preferably, the base body is made of 40Cr alloy steel, and the base plate, the soft claw, the cover plate, the mandrel, the pull rod and the end cover are made of 20Cr alloy steel.

The utility model has the following beneficial effects:

1. the base body is 135 x 115 x 96.5mm in design size, meanwhile, the soft claw is driven by the mandrel to clamp, the transmission design of the mandrel and the pull rod can enable the transverse size of the clamping assembly to be smaller, so that the occupied area of the clamp is reduced, and the clamp is installed and used on the CNC high-speed machining center more conveniently and flexibly;

2. the soft claw can design the clamping surface according to the work piece that needs the centre gripping, and the adaptation design has promoted the centre gripping effect, can satisfy the terminal surface centre gripping of complicated work piece, and the surface design antiskid line of soft claw promotes frictional force, further promotes clamping stability, and the size of clamp is less, installs the more convenient of specific design additional on CNC high-speed machining center, uses more in a flexible way.

3. After the pull rod is connected with the external cylinder, when the pull rod moves downwards, the clamping block moves downwards along with the pull rod to drive the mandrels to move downwards along the radial direction, the distances between the top ends and the bottom ends of the two mandrels are gradually reduced, the two groups of soft claws move oppositely to clamp and fix the workpiece, the base plate moves downwards to drive the workpiece to move downwards, and then the workpiece is clamped and pulled to move downwards at the same time, so that clamping is tighter.

Drawings

FIG. 1 is a schematic diagram of the main structure of the present utility model;

FIG. 2 is a schematic view of a base body according to the present utility model;

FIG. 3 is a schematic view of the internal structure of the present utility model;

FIG. 4 is an internal cross-sectional view of the present utility model;

fig. 5 is a schematic diagram of the structure of the end cap of the present utility model.

Legend description:

1. a backing plate; 11. an airtight detection hole; 2. soft claws; 3. a base body; 31. a partition plate; 311. a first through hole; 312. a second through hole; 32. a mating hole; 33. an air inlet hole; 4. a cover plate; 5. a mandrel; 51. a clamping groove; 6. a pull rod; 61. a clamping block; 7. an end cap; 71. a groove; 72. and (5) mounting holes.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. 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.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in the specific direction, and thus should not be construed as limiting the present utility model; the terms "first," "second," "third," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "coupled," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally coupled, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1-5, one embodiment provided by the present utility model is: comprising the following steps: the base body 3, the end cover 7 is arranged at the bottom of the base body 3, the middle position of the end cover 7 is provided with a mounting hole 72, and two sides of the mounting hole 72 are symmetrically provided with two groups of grooves 71;

the synchronous mechanism comprises a pull rod 6 arranged in the middle and two groups of mandrels 5 symmetrically arranged along the axis of the pull rod 6, wherein the two groups of mandrels 5 are arranged in a V shape, and the bottom end of the pull rod 6 is connected with a mounting hole 72;

the two groups of soft claws 2 are arranged, the two groups of soft claws 2 are respectively arranged at the tops of the two groups of mandrels 5, and the clamping surfaces of the two groups of soft claws 2 are arranged in opposite directions;

the base plate 1, the base plate 1 is opened and is had airtight detection hole 11, and the base plate 1 sets up in the top of dabber 5, plays supporting bearing effect.

Further, the bottom of the base body 3 is provided with a fitting hole 32, the top of the fitting hole 32 is provided with a partition plate 31, the fitting hole 32 is matched with the end cover 7 in size, and the partition plate 31 is provided with a first through hole 311 and a second through hole 322 which are matched with the mandrel 5.

By this technical scheme, end cover 7 is connected with base body 3, and the bottom of pull rod 6 passes the second through-hole and is connected with mounting hole 72.

Further, a clamping block 61 is fixedly connected to the middle of the pull rod 6, a clamping groove 51 is formed in the inner side of the mandrel 5, and two ends of the clamping block 61 are respectively connected with the clamping groove 51 in a sliding mode.

Through this technical scheme, the synchronous motion is realized through the mutually supporting of fixture block 61 and draw-in groove 51 to pull rod 6 and dabber 5, and after pull rod 6 and external cylinder are connected, when pull rod 6 moves down, fixture block 61 follows pull rod 6 and moves down, drives dabber 5 and moves along the radial direction of recess 71 that corresponds on mounting hole 72 and the baffle 31.

Further, the pull rod 6 penetrates through the mounting hole 72, and the pull rod 6 is slidably connected with the mounting hole 72.

Through this technical scheme, when two dabbers 5 move down, the distance of two dabbers 5 top and bottom diminishes gradually.

Further, the groove 71 is parallel to the plane of the end cover at the bottom surface of the clamping block 61 in the radial direction between the first through hole 311 and the mandrel 5.

Through this technical scheme, when dabber 5 moves down, dabber 5 bottom can get into the recess, fixture block 61 bottom surface and end cover plane contact, dabber 5 stop the downward movement.

Further, a cover plate 4 is arranged at the top end of the base body 3, and a limit groove matched with the mandrel 5 is formed in the middle position of the inner side of the cover plate 4.

Through this technical scheme, dabber 5 card is in the spacing inslot of apron 4 inboard, and apron 4 is spacing to dabber 5, prevents that dabber 5 from producing the rotation when removing.

Further, the inner side surface of the soft claw 2 is arranged according to the end surface adaptation of the workpiece, and the inner side surface of the soft claw 2 is also provided with anti-skid patterns.

According to the technical scheme, the soft claw 2 designs the clamping surface according to the workpiece to be clamped, and the clamping effect is improved by the adaptive design, so that the end face clamping of the complex workpiece can be met; the surface of the soft claw 2 is provided with anti-skid patterns, so that the friction force is improved, and the clamping stability is further improved.

Further, end cover 7 is fixed with base body 3 spiro union, is provided with multiunit screw thread mounting hole on the bottom surface of base body 3, and a plurality of inlet port 33 have been seted up to the lateral wall of base body 3, and inlet port 33 cooperates with airtight detection hole 11, through detecting the inside air flow of base body 3, can judge whether the work piece pastes tight base body 3, and a plurality of inlet port 33's setting prevents in the installation, and when one side inlet port 33 was blocked inconvenient to use, can use other air inlet port 33 to connect.

Through this technical scheme, the simple to operate of base body 3, it is simple to dismantle, conveniently installs additional on CNC high-speed machining center.

Furthermore, the base body 3 is made of 40Cr alloy steel, and the backing plate 1, the soft claw 2, the cover plate 4, the mandrel 5, the pull rod 6 and the end cover 7 are made of 20Cr alloy steel.

Working principle: the synchronous clamp comprises a base body 3, an end cover 7, a same-motion mechanism and a soft claw 2, wherein the same-motion mechanism comprises two groups of mandrels 5 and a group of pull rods 6, the bottoms of the mandrels 5 and the bottoms of the pull rods 6 are respectively arranged in grooves 71 and mounting holes 72 on the end cover 7, the two groups of soft claws 2 are respectively arranged at the tops of the two groups of mandrels 5, after the pull rods 6 are connected with an external cylinder, when the pull rods 6 move downwards, clamping blocks 61 move downwards along with the pull rods 6 to drive the mandrels 5 to move downwards along the radial direction, the distances between the top ends and the bottom ends of the two mandrels 5 are gradually reduced, the two groups of soft claws 2 move in opposite directions to clamp and fix a workpiece, a base plate 1 moves downwards to drive the workpiece to move downwards, the workpiece is clamped downwards, so that the clamping is more tightly, the size of the clamp is the size of the base body 3 in design, the design size of the base body 3 is 135 x 115 x 96.5mm, meanwhile, the mandrel 5 and the transmission design of the pull rods 6 can enable the transverse size of a clamping assembly to be smaller, so that the clamp can be more flexibly arranged on the clamp, the clamp can be more flexibly arranged on the center, the clamp can be more flexibly designed, the clamp can be flexibly arranged on the end face of the CNC clamp, and can be conveniently machined, and the clamp can be flexibly clamped on the end face of the center, and can be conveniently machined, and flexibly clamped, and the clamp can be used.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model 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, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. A synchronous clamp for machining, characterized in that: comprising the following steps:

a base body (3);

the end cover (7) is arranged at the bottom of the base body (3), a mounting hole (72) is formed in the middle of the end cover (7), and two groups of grooves (71) are symmetrically formed in two sides of the mounting hole (72);

the synchronous mechanism comprises a pull rod (6) arranged in the middle and two groups of mandrels (5) symmetrically arranged along the axis of the pull rod (6), wherein the two groups of mandrels (5) are arranged in a V shape, and the bottom end of the pull rod (6) is connected with a mounting hole (72);

the two groups of soft claws (2) are arranged, the two groups of soft claws (2) are respectively arranged at the tops of the two groups of mandrels (5), and the clamping surfaces of the two groups of soft claws (2) are arranged in opposite directions;

the base plate (1), the base plate (1) is opened and has airtight detection hole (11), and base plate (1) sets up in the top of dabber (5), plays supporting bearing effect.

2. A synchronous clamp for machining according to claim 1, characterized in that: the base body (3) is provided with a matching hole (32) at the bottom, a partition plate (31) is arranged at the top of the matching hole (32), the matching hole (32) is matched with the end cover (7) in size, and the partition plate (31) is provided with a first through hole (311) and a second through hole (322) which are matched with the mandrel (5).

3. A synchronous clamp for machining according to claim 1, characterized in that: clamping blocks (61) are fixedly connected to the middle of the pull rod (6), clamping grooves (51) are formed in the inner side of the mandrel (5), and two ends of the clamping blocks (61) are respectively connected with the clamping grooves (51) in a sliding mode.

4. A synchronous clamp for machining according to claim 3, wherein: the pull rod (6) penetrates through the mounting hole (72), and the pull rod (6) is connected with the mounting hole (72) in a sliding mode.

5. A synchronous clamp for machining according to claim 1, characterized in that: the grooves (71) are arranged in the radial direction of the first through holes (311) and the mandrel (5), and the bottom surfaces of the clamping blocks (61) are parallel to the plane of the end cover.

6. A synchronous clamp for machining according to claim 5, wherein: the base is characterized in that a cover plate (4) is arranged at the top end of the base body (3), and a limiting groove matched with the mandrel (5) is formed in the middle position of the inner side of the cover plate (4).

7. A synchronous clamp for machining according to claim 1, characterized in that: the inner side surface of the soft claw (2) is arranged according to the end surface adaptation of the workpiece, and the inner side surface of the soft claw (2) is also provided with anti-skid patterns.

8. A synchronous clamp for machining according to claim 1, characterized in that: the end cover (7) is fixedly connected with the base body (3) in a threaded mode, a plurality of groups of threaded mounting holes are formed in the bottom face of the base body (3), a plurality of air inlet holes (33) are formed in the side wall of the base body (3), and the air inlet holes (33) are matched with the airtight detection holes (11).

9. A synchronous clamp for machining according to claim 1, characterized in that: the base body (3) is made of (40) Cr alloy steel, and the base plate (1), the soft claw (2), the cover plate (4), the mandrel (5), the pull rod (6) and the end cover (7) are made of (20) Cr alloy steel.