CN210995938U

CN210995938U - Double-arm stretch bender chuck mechanism

Info

Publication number: CN210995938U
Application number: CN201921180719.2U
Authority: CN
Inventors: 俞春生; 王美红; 俞佳
Original assignee: Jiangsu China Airlines Heavy Industry Machine Tool Co ltd
Current assignee: Jiangsu China Airlines Heavy Industry Machine Tool Co ltd
Priority date: 2019-07-25
Filing date: 2019-07-25
Publication date: 2020-07-14
Anticipated expiration: 2029-07-25

Abstract

The utility model belongs to the technical field of clamping head mechanisms of stretch benders, in particular to a clamping head mechanism of a double-arm stretch benders, which comprises a hydraulic cylinder, the output end of the hydraulic cylinder is provided with a connecting rod, the other end of the connecting rod is connected with a rear plate in a penetrating way, the front end surface of the rear plate is fixedly connected with a chuck cylinder, a first clamping module and a second clamping module are arranged in the chuck cylinder, the right end face of the first clamping module is fixedly connected with a clamping lug, the right end face of the second clamping module is provided with a clamping groove matched with the clamping lug, by placing one end of the material in the middle of the clamping projection and the clamping groove and then placing the material projection inside the clamping groove, when the clamping projection is moved inside the clamping groove, and then the clamping module is attached to the special-shaped material in shape, so that the effect of stably clamping one end of the special-shaped material is achieved.

Description

Double-arm stretch bender chuck mechanism

Technical Field

The utility model relates to a stretch bender chuck technical field, concretely relates to both arms stretch bender chuck mechanism.

Background

With the continuous development of the mechanical industry, stretch benders have been used in many occasions, in the field of aerospace, because some special aluminum profiles need to be processed into single arcs or multiple arcs in aircraft manufacturing to realize a coherent frame, stretch benders are just one of devices for stretch bending profiles, and stretch benders can be divided into a turntable type stretch bender, a double-rotating-arm type stretch bender and various special stretch benders, such as a stretch bender special for a shower room, a stretch bender special for a train top beam and a stretch bender special for an elevator. The stretch bender is fully hydraulically controlled, is simple and convenient to operate, high in production efficiency, capable of cold-bending various steel pipes, square pipes, H-shaped steel, I-shaped steel, channel steel, angle iron, flat iron and aluminum profiles, perfect in arc shape after bending, high in precision, good in stability and free of deformation.

The prior art has the following problems: the improved chuck of the existing double-arm stretch bender has small clamping area for special-shaped materials, and the materials are easy to slip and break after being stretched, so that the improvement of the production qualification rate is not facilitated.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the prior art, the utility model provides a double-arm stretch bender chuck mechanism, which has the characteristic of large clamping area for special-shaped materials.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a both arms stretch bender chuck mechanism, includes the pneumatic cylinder, the connecting rod is installed to the output of pneumatic cylinder, the other end through connection of connecting rod has the rear plate, the backplate groove has been seted up to the preceding terminal surface of rear plate, the inner wall swing joint in backplate groove has the supplementary ejector pad that matches with the backplate groove, the front end of connecting rod runs through supplementary ejector pad and extends to the front side of supplementary ejector pad, the first fixture block of preceding terminal surface fixedly connected with of supplementary ejector pad, the preceding terminal surface fixedly connected with chuck section of thick bamboo of rear plate, the inside of chuck section of thick bamboo is provided with first clamping module and second clamping module, the tight lug is pressed from both sides to the right side wall fixedly connected with of first clamping module, the tight recess of clamp with clamping lug assorted clamp is seted up to the left side wall of second clamping module.

In order to increase the friction of clamping face, and then prevent that the material from skidding when by the centre gripping, as the utility model relates to a both arms draw bender chuck mechanism is preferred, the equal fixedly connected with skid resistant course in the relative one side of first tight module of clamp and the tight module of second clamp, the lateral wall that presss from both sides tight lug and the equal fixedly connected with skid resistant course of inner wall that presss from both sides tight recess.

For the convenience promote first tight module of clamp and the tight module of second clamp and move forward, conduct the utility model relates to a both arms draw bender chuck mechanism is preferred, the front side of first fixture block is provided with impels the piece, impel the rear end face of piece seted up with first fixture block assorted first draw-in groove, first fixture block and first draw-in groove swing joint, impel the preceding terminal surface of piece and press from both sides tight module swing joint with first tight module of clamp and second clamp.

For convenient fixed first tight module of clamp and the tight module of second clamp, as the utility model relates to a both arms draw bender chuck mechanism is preferred, impel the equal fixedly connected with square convex block in both ends face about the piece, the equal fixedly connected with second fixture block in the one side that first tight module of clamp and second clamp module carried on the back mutually, the equal swing joint in the left and right sides of cartridge section of thick bamboo inner wall has the movable block, two the relative one side of movable block all seted up with square convex block assorted square groove, two the relative one side of movable block all seted up with second fixture block assorted second draw-in groove, the square groove is located the rear of second draw-in groove.

In order to facilitate the pushing of the two moving blocks to move forwards, the chuck mechanism of the double-arm stretch bender is preferred, and the width of the auxiliary pushing block is greater than the distance between the two moving blocks.

In order to facilitate the square bump to slide in the square groove, as the utility model relates to a double-arm stretch bender chuck mechanism is preferred, the degree of depth of square groove equals with square bump's length.

In order to make first fixture block fixed mounting at the rear end of advancing the piece, and two movable blocks press from both sides tight module fixed mounting with first clamp module and second respectively, as the utility model relates to a both arms draw bender chuck mechanism is preferred, first fixture block all is the down-trapezoidal with the second fixture block.

In order to make first clamping module and second clamping module move the back forward with the material centre gripping, as the utility model relates to a both arms draw bender chuck mechanism is preferred, the area of chuck section of thick bamboo front end is less than the area of rearmounted board.

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

1. this kind of both arms stretch-bender improvement chuck, through the tight lug of right-hand member face fixedly connected with clamp of first clamp module, the tight recess of clamp with clamp tight lug assorted is seted up to the right-hand member face that the tight module of second clamp, and then puts into the centre of pressing from both sides tight lug and clamp tight recess with the one end of material, places the material bulge in the inside of pressing from both sides tight recess again, when pressing from both sides tight lug and removing to pressing from both sides tight recess inside, can reach the effect with special-shaped material one end centre gripping.

2. According to the improved chuck of the double-arm stretch bender, the clamping convex block is moved into the clamping groove and clamps two ends of a special-shaped material, the middle of the material is fixed, and the two ends of the material are stretched from the rotating arm to the two sides, so that the friction force between the clamping module and the special-shaped material can be increased by the aid of the anti-skid layer.

3. According to the improved chuck of the double-arm stretch bender, the connecting rod is moved forwards by operating the hydraulic cylinder, so that the pushing block is driven to move forwards, and the effect of pushing the first clamping module and the second clamping module to move forwards is achieved.

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 an overall structure diagram of the present invention;

FIG. 2 is a cross-sectional view of a dual-arm stretch bender chuck mechanism of the present invention;

FIG. 3 is a diagram of a thrust block of the present invention;

fig. 4 is a structural diagram of the first clamping module and the second clamping module of the present invention;

in the figure, 1, a hydraulic cylinder; 101. a connecting rod; 102. a first clamping block; 103. an auxiliary push block; 2. a rear panel; 201. a back plate groove; 3. a collet barrel; 4. a second fixture block; 5. a moving block; 501. a square groove; 502. a second card slot; 6. a propulsion block; 601. a first card slot; 602. a square bump; 7. a first clamping module; 701. clamping the bump; 8. a second clamping module; 801. clamping the groove; 9. and an anti-slip layer.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1-4, the present invention provides the following technical solutions: the utility model provides a both arms stretch-bender chuck mechanism, including pneumatic cylinder 1, connecting rod 101 is installed to pneumatic cylinder 1's output, the other end through connection of connecting rod 101 has rear panel 2, rear panel groove 201 has been seted up to rear panel 2's preceding terminal surface, the inner wall swing joint of rear panel groove 201 has with rear panel groove 201 assorted supplementary ejector pad 103, the front end of connecting rod 101 runs through supplementary ejector pad 103 and extends to the front side of supplementary ejector pad 103, the first fixture block 102 of preceding terminal surface fixedly connected with of supplementary ejector pad 103, rear panel 2's preceding terminal surface fixedly connected with chuck section of thick bamboo 3, the inside of chuck section of thick bamboo 3 is provided with first clamping module 7 and second clamping module 8, the right side wall fixedly connected with of first clamping module 7 presss from both sides tight lug 701, the left side wall of second clamping module 8 seted up with press from both sides tight recess 801 of tight lug 701 assorted.

In this embodiment: clamping lug 701 is fixedly connected to the right end face of the first clamping module 7, clamping groove 801 matched with the clamping lug 701 is formed in the right end face of the second clamping module 8, one end of a material is placed between the clamping lug 701 and the clamping groove 801, the protruding portion of the material is placed inside the clamping groove 801, and when the clamping lug 701 moves to the inside of the clamping groove 801, the effect of clamping one end of the special-shaped material can be achieved.

Specifically, the anti-slip layer 9 is fixedly connected to the opposite side of the first clamping module 7 and the opposite side of the second clamping module 8, and the anti-slip layer 9 is fixedly connected to the outer side wall of the clamping protrusion 701 and the inner wall of the clamping groove 801.

In this embodiment: the clamping convex block 701 moves into the clamping groove 801 and clamps two ends of the special-shaped material, the middle of the material is fixed, the two ends of the material are stretched towards two sides from the rotating arm, and therefore the friction force between the clamping module and the special-shaped material can be increased by means of the anti-slip layer 9.

Specifically, the front side of the first fixture block 102 is provided with the pushing block 6, the rear end surface of the pushing block 6 is provided with a first clamping groove 601 matched with the first fixture block 102, the first fixture block 102 is movably connected with the first clamping groove 601, and the front end surface of the pushing block 6 is movably connected with the first clamping module 7 and the second clamping module 8.

In this embodiment: the connecting rod 101 is moved forward by operating the hydraulic cylinder 1, and then the pushing block 6 is driven to move forward, so that the effect of pushing the first clamping module 7 and the second clamping module 8 to move forward is achieved.

Specifically, the equal fixedly connected with square convex block 602 in both ends face about advancing piece 6, the equal fixedly connected with second fixture block 4 in the one side that first clamping module 7 and second clamping module 8 carried on the back mutually, the equal swing joint in the left and right sides of 3 inner walls of chuck section of thick bamboo has movable block 5, two relative one sides of movable block 5 all seted up with square convex block 602 assorted square groove 501, two relative one sides of movable block 5 all seted up with second fixture block 4 assorted second draw-in groove 502, square groove 501 is located the rear of second draw-in groove 502.

In this embodiment: the moving blocks 5 move forwards, so that the distance between the two moving blocks 5 is reduced, the square bump 602 slides towards the inside of the square groove 501, and is clamped with the second clamping groove 502 through the second clamping block 4, and then the two moving blocks 5 drive the first clamping module 7 and the second clamping module 8 to move forwards, so that the distance between the first clamping module 7 and the second clamping module 8 is reduced.

Specifically, the width of the auxiliary pushing block 103 is greater than the distance between the two moving blocks 5.

In this embodiment: through the width of the auxiliary push block 103 being greater than the distance between the two moving blocks 5, the connecting rod 101 drives the auxiliary push block 103 to move forward, and the front end face of the auxiliary push block 103 is in contact with the rear end faces of the two moving blocks 5, so that the effect of pushing the moving blocks 5 to move forward is achieved.

Specifically, the depth of the square groove 501 is equal to the length of the square bump 602.

In this embodiment: by the depth of the square groove 501 being equal to the length of the square bump 602, when the distance between the two moving blocks 5 is reduced, the effect of the square bump 602 sliding in the square groove 501 can be achieved.

Specifically, the first latch 102 and the second latch 4 are both in an inverted trapezoid shape.

In this embodiment: the first clamping block 102 and the second clamping block 4 are inverted trapezoidal, so that the first clamping block 102 is clamped with the first clamping groove 601, and the second clamping block 4 is clamped with the second clamping groove 502, so that the effect that the connecting rod 101 and the pushing block 6 are fixedly connected, and the two moving blocks 5 are fixedly connected with the first clamping module 7 and the second clamping module 8 respectively is achieved.

Specifically, the area of the front end of the cartridge barrel 3 is smaller than that of the rear plate 2.

In this embodiment: the area of the front end of the chuck barrel 3 is smaller than that of the rear plate 2, so that when the first clamping module 7 and the second clamping module 8 move forwards, the side, back to the back, of the two moving blocks 5 is movably connected with the inner wall of the chuck barrel 3, and therefore the distance between the first clamping module 7 and the second clamping module 8 is compressed to be reduced.

The utility model discloses a theory of operation and use flow: firstly, one end of a material is placed between the clamping convex block 701 and the clamping groove 801, then the convex part of the material is placed inside the clamping groove 801, then the hydraulic cylinder 1 is operated to enable the connecting rod 101 to move forwards, further the pushing block 6 is driven to move forwards, then the auxiliary pushing block 103 is driven to move forwards and push the moving block 5 to move forwards, then the distance between the two moving blocks 5 is reduced, so that the square convex block 602 slides towards the inside of the square groove 501, the second clamping block 4 is clamped with the second clamping groove 502, further the two moving blocks 5 drive the first clamping module 7 and the second clamping module 8 to move forwards, further the distance between the first clamping module 7 and the second clamping module 8 is reduced, and finally, when the clamping convex block 701 moves to the inside of the clamping groove 801, one end of the special-shaped material is clamped.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a both arms draw bender chuck mechanism, includes pneumatic cylinder (1), its characterized in that: the output end of the hydraulic cylinder (1) is provided with a connecting rod (101), the other end of the connecting rod (101) is connected with a rear plate (2) in a penetrating way, a backboard groove (201) is arranged on the front end face of the rear plate (2), the inner wall of the backboard groove (201) is movably connected with an auxiliary push block (103) matched with the backboard groove (201), the front end of the connecting rod (101) penetrates through the auxiliary push block (103) and extends to the front side of the auxiliary push block (103), the front end surface of the auxiliary push block (103) is fixedly connected with a first clamping block (102), the front end face of the rear plate (2) is fixedly connected with a chuck cylinder (3), a first clamping module (7) and a second clamping module (8) are arranged inside the chuck cylinder (3), the right side wall of the first clamping module (7) is fixedly connected with a clamping convex block (701), the left side wall of the second clamping module (8) is provided with a clamping groove (801) matched with the clamping convex block (701).

2. The dual arm stretch bender chuck mechanism according to claim 1, wherein: the anti-skidding layer (9) is fixedly connected to the opposite face of the first clamping module (7) and the opposite face of the second clamping module (8), and the anti-skidding layer (9) is fixedly connected to the outer side wall of the clamping convex block (701) and the inner wall of the clamping groove (801).

3. The dual arm stretch bender chuck mechanism according to claim 1, wherein: the front side of the first clamping block (102) is provided with a pushing block (6), the rear end face of the pushing block (6) is provided with a first clamping groove (601) matched with the first clamping block (102), the first clamping block (102) is movably connected with the first clamping groove (601), and the front end face of the pushing block (6) is movably connected with the first clamping module (7) and the second clamping module (8).

4. The dual arm stretch bender chuck mechanism according to claim 3, wherein: the improved chuck barrel is characterized in that square convex blocks (602) are fixedly connected to the left end face and the right end face of the propelling block (6), second clamping blocks (4) are fixedly connected to one sides, opposite to each other, of the first clamping module (7) and the second clamping module (8), moving blocks (5) are movably connected to the left side and the right side of the inner wall of the chuck barrel (3), square grooves (501) matched with the square convex blocks (602) are formed in the opposite faces of the two moving blocks (5), second clamping grooves (502) matched with the second clamping blocks (4) are formed in the opposite faces of the two moving blocks (5), and the square grooves (501) are located behind the second clamping grooves (502).

5. The dual arm stretch bender chuck mechanism according to claim 1, wherein: the width of the auxiliary push block (103) is larger than the distance between the two moving blocks (5).

6. The dual arm stretch bender chuck mechanism according to claim 4, wherein: the depth of the square groove (501) is equal to the length of the square bump (602).

7. The dual arm stretch bender chuck mechanism according to claim 4, wherein: the first clamping block (102) and the second clamping block (4) are in an inverted trapezoid shape.

8. The dual arm stretch bender chuck mechanism according to claim 1, wherein: the area of the front end of the chuck cylinder (3) is smaller than that of the rear plate (2).