CN202219308U

CN202219308U - Pre-clamping shearing mechanism

Info

Publication number: CN202219308U
Application number: CN2011202337789U
Authority: CN
Inventors: 申国兴; 陆金忠; 谈春霞; 李春洲; 姚叶龙; 陈志坚
Original assignee: JIANGYIN SHUANGMA ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
Current assignee: JIANGYIN SHUANGMA ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
Priority date: 2011-07-05
Filing date: 2011-07-05
Publication date: 2012-05-16
Anticipated expiration: 2021-07-05

Abstract

The utility model relates to a pre-clamping shearing mechanism, which comprises a base (1), a movable plate (2), shear blades (3), a hydraulic cylinder (4) and a movable beam (6). The pre-clamping shearing mechanism is characterized in that a pre-compaction device (10) is arranged on the movable beam and comprises an upper pre-compaction block (10-1) and a connecting rod (10-2), the connecting rod vertically penetrates through the movable beam, the upper pre-compaction block is fixed to the lower end of the connecting rod, the upper end of the connecting rod is fixed onto the movable beam, a spring is sleeved on the connecting rod between the movable beam and the upper pre-compaction block, and the lowest point of the upper pre-compaction block is lower than that of each shear blade. By the aid of the pre-clamping shearing mechanism, relative slip generated in the moment of contact of the shear blades with a workpiece can be avoided, and the workpiece and the shear blades are prevented from being damaged.

Description

Clamp in advance and cut off mechanism

Technical field

The utility model relates to a kind of preparatory clamping and cuts off mechanism, and mechanism is cut off in the preparatory clamping on particularly a kind of spiral uncoiling aligning fixed ruler cutting collecting device.

Background technology

General spiral uncoiling aligning fixed ruler cutting collecting device is when processing work; All be to subscribe the position through cutting mechanism at workpiece directly to cut off through cutting edge; Because workpiece also is kept in motion in shear history; Therefore the moment generation slip relatively that cutting edge contacts with workpiece might take place, scratch thereby produce, also possibly damage cutting edge.

Summary of the invention

The purpose of the utility model is to overcome above-mentioned deficiency, provides a kind of preparatory clamping to cut off mechanism, prevents workpiece and cutting edge are caused damage.

The purpose of the utility model is achieved in that a kind of preparatory clamping cuts off mechanism, and it comprises base, portable plate, cutting edge and hydraulic cylinder, and portable plate is connected with base through line slideway auxiliary; On portable plate, be fixed with four root posts, above four root posts, be provided with a built-in beam, hydraulic cylinder is fixed on the built-in beam; On the column below the hydraulic cylinder, be nested with a trave lling girder, on the column between portable plate and the trave lling girder, be equipped with back-moving spring, cutting edge is fixed in the lower surface of trave lling girder; Center fixed one is sheared bearing in the upper surface of said portable plate, in the upper surface of shearing bearing one groove is set, the fixing precompressed piece once in the bottom of groove; One pre-compressing device is set on the trave lling girder directly over the groove; Pre-compressing device comprises precompressed piece and connecting rod, and connecting rod vertically passes trave lling girder, and last precompressed piece is fixed in the lower end of connecting rod; And last precompressed piece matches with following precompressed piece; The upper end of connecting rod is fixed on the trave lling girder, on the connecting rod between trave lling girder and the last precompressed piece, is equipped with spring, and the minimum point of last precompressed piece is lower than the minimum point of cutting edge.

Compared with prior art, the beneficial effect of the utility model is:

The utility model is because the position, the end of pre-compacted mechanism is lower than the lowest order of cutting edge; Pre-compacted mechanism touched workpiece earlier when therefore they pressed down simultaneously; And drive whole shear mechanism and follow workpiece and move forward; Then cutting edge touches workpiece and cuts off workpiece, and the moment that can avoid cutting edge contact with workpiece like this produces relative slip, prevents workpiece and cutting edge are caused damage.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is the structural representation of the shearing bearing of the utility model.

Fig. 3 is the structural scheme of mechanism of the pre-compressing device of the utility model.

Wherein:

Base 1

Portable plate 2

Cutting edge 3

Hydraulic cylinder 4

Column 5

Trave lling girder 6

Recovery springs 7

Shear bearing 8

Guiding wear-resistant sleeve I 8-1

Guiding wear-resistant sleeve II 8-2

Following precompressed piece 9

Pre-compressing device 10

Last precompressed piece 10-1

Connecting rod 10-2

Built-in beam 11.

The specific embodiment

Referring to Fig. 1-Fig. 3, the utility model relates to a kind of preparatory clamping and cuts off mechanism, and it comprises base 1, portable plate 2, cutting edge 3 and hydraulic cylinder 4; Said portable plate 2 is connected with base 1 through line slideway auxiliary; Upper surface at said portable plate 2 is provided with four root posts 5 for four jiaos, above said four root posts 5, is provided with a built-in beam 11, and said hydraulic cylinder 4 is fixed on the built-in beam 11; The piston rod of said hydraulic cylinder 4 is provided with down; Level is nested with a trave lling girder 6 at the middle part of said four root posts, and said trave lling girder 6 is in the piston rod below of hydraulic cylinder 4, on the column 5 between said portable plate 2 and the trave lling girder 6, is equipped with recovery springs 7; Said cutting edge 3 is fixed in the lower surface of trave lling girder 6, and center fixed one is sheared bearing 8 in the upper surface of said portable plate 2.

Be inlaid with guiding wear-resistant sleeve I 8-1 and guiding wear-resistant sleeve II 8-2 in the said shearing bearing 8; Said guiding wear-resistant sleeve I 8-1 and guiding wear-resistant sleeve II 8-2 are in horizontal coaxial position; Said guiding wear-resistant sleeve I 8-1 is arranged at the import department that shears bearing 8; Said guiding wear-resistant sleeve II 8-2 is in the centre of shearing bearing 8, in the upper surface of said shearing bearing 8 groove is set, the fixing precompressed piece 9 once in the bottom of groove; The upper surface of said precompressed piece 9 down flushes with the following inwall of guiding wear-resistant sleeve II 8-2 with guiding wear-resistant sleeve I 8-1; One pre-compressing device 10 is set on the trave lling girder directly over the said groove 6, and said pre-compressing device 10 comprises precompressed piece 10-1 and connecting rod 10-2, and said connecting rod 10-2 vertically passes trave lling girder 6; Said upward precompressed piece 10-1 is fixed in the lower end of connecting rod 10-2 and matches with following precompressed piece 9; The upper end of connecting rod 10-2 is fixed with nut, on the connecting rod 10-2 between trave lling girder 6 and the last precompressed piece 10-1, is equipped with spring, the said low 5mm of minimum point that goes up the minimum point of precompressed piece 10-1 than cutting edge 3 heads.

Operation principle: hydraulic cylinder began to press down when workpiece passed shear; Hydraulic cylinder presses down and drives trave lling girder and press down, and trave lling girder presses down and drives pre-compressing device and press down simultaneously with cutting edge, because 5mm is hanged down than the lowest order of cutting edge in position, the end of the last precompressed piece of pre-compressing device; Pre-compressing device touched workpiece earlier when therefore they pressed down simultaneously; And drive the whole shear device and follow workpiece and move forward, then cutting edge touches workpiece and cuts off workpiece, and hydraulic cylinder resets; Trave lling girder, pre-compressing device, cutting edge reset, and accomplish one and cut off the cycle.

Claims

1. preparatory a clamping cut off mechanism; It comprises base (1), portable plate (2), cutting edge (3) and hydraulic cylinder (4); Said portable plate (2) is connected with base (1) through line slideway auxiliary; On said portable plate (2), be fixed with four root posts (5), be provided with a built-in beam (11) in the top of said four root posts (5), said hydraulic cylinder (4) is fixed on the built-in beam (11); On the column (5) of said hydraulic cylinder (4) below, be nested with a trave lling girder (6); On the column (5) between said portable plate (2) and the trave lling girder (6), be equipped with back-moving spring (7), said cutting edge (3) is fixed in the lower surface of trave lling girder (6), shears bearing (8) in the upper surface center fixed one of said portable plate (2); It is characterized in that: the upper surface at said shearing bearing (8) is provided with a groove; The fixing precompressed piece (9) once in the bottom of said groove is provided with a pre-compressing device (10) on the trave lling girder directly over the said groove (6), said pre-compressing device (10) comprises precompressed piece (10-1) and connecting rod (10-2); Said connecting rod (10-2) vertically passes trave lling girder (6); Said upward precompressed piece (10-1) is fixed in the lower end of connecting rod (10-2), and goes up precompressed piece (10-1) and match with following precompressed piece (9), and the upper end of said connecting rod (10-2) is fixed on the trave lling girder (6); On the connecting rod (10-2) between trave lling girder (6) and the last precompressed piece (10-1), be equipped with spring, the minimum point of said upward precompressed piece (10-1) is lower than the minimum point of cutting edge (3).