CN216175530U

CN216175530U - Hydraulic pliers for elbow machining

Info

Publication number: CN216175530U
Application number: CN202122953148.5U
Authority: CN
Inventors: 郝永刚
Original assignee: Weifang Oumaide Industry And Trade Co ltd
Current assignee: Weifang Oumaide Industry And Trade Co ltd
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2022-04-05
Anticipated expiration: 2031-11-29

Abstract

The utility model discloses a pair of hydraulic pliers for elbow machining, which comprises a base, wherein the upper side wall of the base is fixedly connected with a plurality of supporting frames, the upper ends of the supporting frames are fixedly connected with a supporting plate together, the lower side wall of the supporting plate is fixedly connected with a hydraulic cylinder, the driving end of the hydraulic cylinder is vertically downward and fixedly connected with a connecting plate, the lower side wall of the connecting plate is fixedly connected with an upper die, the upper side wall of the base is fixedly connected with a hollow seat, a plurality of supporting rods are slidably inserted into the upper side wall of the hollow seat, and the upper ends of the supporting rods are fixedly connected with a lower die together. According to the utility model, the bending point of the steel is fixed by clamping the upper die and the lower die, so that the steel is prevented from moving in the processing process, the safety of the device during processing is improved, and meanwhile, the flexibility of the steel elbow in the processing process is greatly improved by arranging the pipe column to rotate in the steel bending process.

Description

Hydraulic pliers for elbow machining

Technical Field

The utility model relates to the technical field of steel elbow processing, in particular to a hydraulic clamp for elbow processing.

Background

The elbow of the steel pipe is made by pressing the upper die or the lower die by hydraulic pliers, firstly, the elbow is subjected to elastic deformation and then enters plastic deformation, at the beginning stage of the plastic bending, the plate is freely bent, along with the pressing of the upper die or the lower die on the plate, the plate is gradually leaned against the inner surface of the V-shaped groove of the lower die, the curvature radius and the bending force arm are gradually reduced, the pressing is continued until the stroke is ended, the upper die and the lower die are completely contacted by the close contact of the three points of the plate, and then, the V-shaped bending is completed.

Compared with numerical control pipe bending equipment, the hydraulic pliers have the characteristics of low price and convenience in use, and occupy the leading product position in the domestic pipe bending machine market.

When the existing hydraulic clamp is used, a hydraulic cylinder occupies a large working space of a workbench, and the defects of poor pipe bending effect, low safety and poor flexibility exist.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems in the background art and provides a pair of hydraulic pliers for elbow machining.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a plurality of support frames are fixedly connected to the upper side wall of the base, a support plate is fixedly connected to the upper ends of the support frames jointly, a hydraulic cylinder is fixedly connected to the lower side wall of the support plate, a connecting plate is fixedly connected to the driving end of the hydraulic cylinder in a vertically downward direction, an upper die is fixedly connected to the lower side wall of the connecting plate, a hollow seat is fixedly connected to the upper side wall of the base, a plurality of support rods are slidably inserted into the upper side wall of the hollow seat, a lower die is fixedly connected to the upper ends of the support rods jointly, a first groove is formed in the side wall of the lower die opposite to the upper die, a fixed plate is fixedly connected to one end of each support rod in the hollow seat jointly, a plurality of springs are fixedly connected between the fixed plate and the inner bottom wall of the hollow seat jointly, and two rectangular frames are symmetrically arranged between the base and the support plates, every all install in the rectangle frame and put the tubular column, every put the last lateral wall of tubular column and all seted up fluted two, two put the equal fixedly connected with activity in both ends of tubular column and inlay the pivot of establishing on homonymy rectangle frame inner wall.

Preferably, each upper side wall of the rectangular frame is symmetrically and fixedly connected with two second sliding blocks penetrating through the upper side wall of the supporting plate, the upper side wall of the supporting plate is provided with two second sliding grooves matched with the two sliding blocks, one ends of the two sliding blocks, which are positioned at the upper side of the supporting plate, are fixedly connected with a transverse plate, and the upper side wall of the transverse plate is in threaded connection with a fastening bolt, the end parts of the fastening bolt are abutted against the upper side wall of the supporting plate.

Preferably, a torque spring sleeved on the outer wall of the rotating shaft on the same side is fixedly connected between the two ends of each placing pipe column and the inner wall of the rectangular frame on the same side.

Preferably, the lower side wall of each rectangular frame is symmetrically and fixedly connected with two first sliding blocks which are arranged on the upper side wall of the base in a sliding mode, and the upper side wall of the base is provided with two first sliding grooves matched with the first sliding blocks.

Preferably, the number of the first groove and the second groove is multiple.

Preferably, every the inner wall of rectangle frame all seted up with pivot assorted activity groove, every the pivot all activity inlays with the junction in activity groove and is equipped with a plurality of balls.

Preferably, the upper side wall of connecting plate symmetry fixedly connected with a plurality of dead levers, every the outer wall of dead lever all slides the cover and is equipped with the spacing section of thick bamboo with backup pad lower side wall fixed connection.

Compared with the prior art, this hydraulic tong for elbow processing's advantage lies in:

1. the upper die and the lower die are arranged, the hydraulic cylinder is started to drive the upper die to move downwards, and the first groove on the lower side wall of the upper die is matched with the second groove on the lower die to fix the steel bending point, so that the steel bending point is prevented from moving in the machining process, and the safety of the device in machining is improved;

2. the pipe placing column and the rotating shaft are arranged, so that in the process of bending steel, the pipe placing column and the rotating shaft can be driven to rotate through the friction force between the two ends of the steel and the second groove on the pipe placing column so as to match the inclination of the end part of the steel in the bending process, and the flexibility in the processing process of the steel elbow is greatly improved;

in conclusion, the bending point of the steel is fixed by clamping the upper die and the lower die, so that the steel bending point is prevented from moving in the machining process, the safety of the device in machining is improved, and meanwhile, the flexibility of the steel elbow in the machining process is greatly improved by the rotation matching of the middle pipe column in the steel bending process.

Drawings

FIG. 1 is a schematic structural view of a hydraulic tong for processing an elbow, which is provided by the utility model;

FIG. 2 is a side view of the joint between the rectangular frame and the support plate and the base of the hydraulic pliers for elbow processing according to the present invention;

FIG. 3 is a side view of an upper die and a lower die of the hydraulic tong for elbow processing according to the present invention;

fig. 4 is an enlarged view of a structure in fig. 2.

In the figure: the device comprises a base 1, a support frame 2, a support plate 3, a hydraulic cylinder 4, a connecting plate 5, an upper die 6, a hollow seat 7, a support rod 8, a lower die 9, a fixing plate 10, a spring 11, a rectangular frame 12, a tubular column 13, a rotating shaft 14, a torque spring 15, a movable groove 16, a ball 17, a first slide block 18, a second slide block 19, a transverse plate 20, a fastening bolt 21 and a limiting cylinder 22.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the 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.

Referring to fig. 1-4, a hydraulic tong is used in elbow processing, including base 1, a plurality of support frames 2 of the last lateral wall fixedly connected with of base 1, the common fixedly connected with backup pad 3 in upper end of a plurality of support frames 2, the lower lateral wall fixedly connected with pneumatic cylinder 4 of backup pad 3, the vertical downward and fixedly connected with connecting plate 5 of drive end of pneumatic cylinder 4, a plurality of dead levers of the last lateral wall symmetry fixedly connected with of connecting plate 5, the outer wall of every dead lever all slides the cover and is equipped with 3 lower lateral wall fixedly connected's of backup pad spacing section of thick bamboo 22, when pneumatic cylinder 4 drive connecting plate 5 drives mould 6 and goes up and down, can improve the stability when mould 6 goes up and down through the flexible of dead lever in spacing section of thick bamboo 22.

Lower lateral wall fixedly connected with of connecting plate 5 goes up mould 6, the hollow seat 7 of the last lateral wall fixedly connected with of base 1, the last lateral wall of hollow seat 7 slides and inserts and is equipped with a plurality of bracing pieces 8, the common fixedly connected with lower mould 9 in upper end of a plurality of bracing pieces 8, lower mould 9 and the relative lateral wall of last mould 6 have all been seted up fluted one, the common fixedly connected with fixed plate 10 of one end that a plurality of bracing pieces 8 are located hollow seat 7, a plurality of springs 11 of common fixedly connected with between the inner diapire of fixed plate 10 and hollow seat 7, elasticity through a plurality of springs 11, can cooperate its moving down that promotes lower mould 9 when last mould 6 moves down, in order to satisfy the extrusion of last mould 6 to the steel middle part, in order to realize the return bend to steel, the while also can realize shifting up of steel return bend back lower mould 9 and reset.

The symmetry is equipped with two rectangle frames 12 between base 1 and the backup pad 3, the lower lateral wall symmetry fixedly connected with of every rectangle frame 12 slides and sets up two slider one 18 on the lateral wall on base 1, base 1's last lateral wall seted up with two spout one of slider one 18 assorted, the equal symmetry fixedly connected with of the last lateral wall of every rectangle frame 12 runs through two slider two 19 of lateral wall on the backup pad 3, backup pad 3's last lateral wall seted up with two slider two 19 assorted spout two, two spout one and the setting of spout two, make slider one 18 and slider two 19 can freely remove between base 1 and backup pad 3, thereby can adjust two and put tubular column 13 to last mould 6 and exert force the distance of point to steel, in order to realize the different degree of curvature to the steel elbow.

One end of the two second sliding blocks 19, which is positioned at the upper side of the supporting plate 3, is fixedly connected with a transverse plate 20 together, the upper side wall of the transverse plate 20 is in threaded connection with a fastening bolt 21, the end part of which abuts against the upper side wall of the supporting plate 3, and after the positions of the two rectangular frames 12 are adjusted, each fastening bolt 21 is screwed in to enable the end part to abut against the upper side wall of the supporting plate 3 in the next year. Therefore, the position of the rectangular frame 12 is fixed, and the upper die 6 can bend steel materials better.

All install in every rectangle frame 12 and put tubular column 13, every put tubular column 13 last lateral wall all set up fluted two, the quantity of recess one and recess two is a plurality ofly, and recess one and the recess of both sides are two to be used for placing steel's the bending point and the both ends of steel respectively, simultaneously through setting up a plurality of recesses one and recess two, can realize simultaneously to the processing of a plurality of steel elbows, has improved the machining efficiency of steel elbow.

The two ends of the two pipe placing columns 13 are fixedly connected with rotating shafts 14 which are movably embedded on the inner walls of the rectangular frames 12 on the same side, a torque spring 15 which is sleeved on the outer wall of the rotating shaft 14 on the same side is fixedly connected between the two ends of each pipe placing column 13 and the inner wall of the rectangular frame 12 on the same side, a movable groove 16 which is matched with the rotating shaft 14 is arranged on the inner wall of each rectangular frame 12, a plurality of balls 17 are movably embedded at the joint of each rotating shaft 14 and the movable groove 16, when steel is bent, the steel is placed on the first groove and the second groove, the hydraulic cylinder 4 is started to drive the upper die 6 to move downwards, the fixing of the bending point of the steel is completed through the matching of the first groove on the lower side wall and the second groove on the lower die 9, the movement in the machining process of the steel is avoided, the safety of the device in the machining process is improved, then the upper die 6 is pushed to continuously move downwards to push the lower die 9 to move downwards, and then the limiting of the two ends of the two pipe placing columns 13 on the steel is matched, the bending of steel is completed, meanwhile, in the bending process of the steel, the pipe placing column 13 and the rotating shaft 14 can be driven to rotate through friction force between two ends of the steel and the groove, the rotating shaft 14 can rotate in the movable groove 16 conveniently through the plurality of balls 17, the inclination of the end part of the steel during bending is matched, the flexibility in the processing process of the steel elbow is greatly improved, meanwhile, after the steel is taken away after the processing is completed, the pipe placing column 13 can automatically reset to an initial state under the elastic force of the torque spring 15, and the next processing of the steel pipe elbow is facilitated.

Further, unless otherwise specifically stated or limited, the above-described fixed connection is to be understood in a broad sense, and may be, for example, welded, glued, or integrally formed as is conventional in the art.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The hydraulic pliers for processing the elbow comprises a base (1) and is characterized in that a plurality of supporting frames (2) are fixedly connected to the upper side wall of the base (1), a supporting plate (3) is fixedly connected to the upper ends of the supporting frames (2) jointly, a hydraulic cylinder (4) is fixedly connected to the lower side wall of the supporting plate (3), a driving end of the hydraulic cylinder (4) vertically faces downwards and is fixedly connected with a connecting plate (5), an upper die (6) is fixedly connected to the lower side wall of the connecting plate (5), a hollow seat (7) is fixedly connected to the upper side wall of the base (1), a plurality of supporting rods (8) are inserted into the upper side wall of the hollow seat (7) in a sliding mode, a lower die (9) is fixedly connected to the upper ends of the supporting rods (8) jointly, and a groove I is formed in one side wall, opposite to the lower die (9) and the upper die (6), a plurality of the common fixedly connected with fixed plate (10) of one end that bracing piece (8) are located hollow seat (7), a plurality of springs (11) of common fixedly connected with between the inner diapire of fixed plate (10) and hollow seat (7), the symmetry is equipped with two rectangle frames (12) between base (1) and backup pad (3), every all install in rectangle frame (12) and put tubular column (13), every the last lateral wall of putting tubular column (13) all sets up fluted two, two put the equal fixedly connected with activity in both ends of tubular column (13) and inlay pivot (14) of establishing on homonymy rectangle frame (12) inner wall.

2. The hydraulic pliers for processing the elbow according to claim 1, wherein the upper side wall of each rectangular frame (12) is symmetrically and fixedly connected with two second sliding blocks (19) penetrating through the upper side wall of the support plate (3), the upper side wall of the support plate (3) is provided with two sliding grooves (two) matched with the two second sliding blocks (19), one ends of the two second sliding blocks (19) positioned at the upper side of the support plate (3) are fixedly connected with a transverse plate (20), and the upper side wall of the transverse plate (20) is in threaded connection with a fastening bolt (21) with an end abutting against the upper side wall of the support plate (3).

3. The hydraulic pliers for processing the elbow according to claim 1, wherein a torque spring (15) sleeved on the outer wall of the rotating shaft (14) on the same side is fixedly connected between the two ends of each pipe placing column (13) and the inner wall of the rectangular frame (12) on the same side.

4. The hydraulic pliers for processing the elbow according to claim 1, wherein the lower side wall of each rectangular frame (12) is symmetrically and fixedly connected with two first sliding blocks (18) which are arranged on the upper side wall of the base (1) in a sliding manner, and the upper side wall of the base (1) is provided with two first sliding grooves matched with the first sliding blocks (18).

5. The hydraulic pliers for machining the elbow according to claim 1, wherein the first groove and the second groove are both multiple in number.

6. The hydraulic pliers for processing the elbow according to claim 1, wherein the inner wall of each rectangular frame (12) is provided with a movable groove (16) matched with the rotating shaft (14), and a plurality of balls (17) are movably embedded at the joint of each rotating shaft (14) and the movable groove (16).

7. The hydraulic pliers for processing the elbow as claimed in claim 1, wherein a plurality of fixing rods are symmetrically and fixedly connected to the upper side wall of the connecting plate (5), and a limiting cylinder (22) fixedly connected to the lower side wall of the supporting plate (3) is slidably sleeved on the outer wall of each fixing rod.