CN212760506U

CN212760506U - Steel pipe bending punch press

Info

Publication number: CN212760506U
Application number: CN202021496935.0U
Authority: CN
Inventors: 梁三平; 汪金叶
Original assignee: Taicang Guanglu Metal Products Co ltd
Current assignee: Taicang Guanglu Metal Products Co ltd
Priority date: 2020-07-25
Filing date: 2020-07-25
Publication date: 2021-03-23
Anticipated expiration: 2030-07-25

Abstract

The utility model relates to a stamping equipment's field specifically is a steel pipe press of bending, it includes the workstation, the fixed pneumatic cylinder that is equipped with on the workstation, the vertical downward setting of tip of pneumatic cylinder piston rod, briquetting under the fixedly connected with on the workstation, the up end of briquetting is established to the arc down, the end connection of pneumatic cylinder piston rod has last briquetting, it is located the top of briquetting down to go up the briquetting, the shape of going up the briquetting sets up with the shape phase-match of briquetting down, the lower terminal surface of going up the briquetting is established to the arc with the up end laminating of briquetting down, the last terminal surface of briquetting is offered down the indent that link up briquetting length direction both ends face down, it establishes to the arc to push down the indent. According to the steel pipe bending forming device, the steel pipe can be guaranteed to be bent and formed accurately.

Description

Steel pipe bending punch press

Technical Field

The application relates to the field of stamping equipment, in particular to a steel pipe bending punch press.

Background

The punch presses the workpiece to be processed and formed in a stamping mode. A press bending press is an apparatus for pressing a workpiece to bend the workpiece. Steel pipes are widely used in industrial fields, and are sometimes used after being bent. The factory typically bends the steel pipe by a steel pipe bending press.

The existing Chinese patent with publication number CN206676971U discloses a steel pipe bending clamp, which comprises a base, a pair of supporting seats, a telescopic cylinder and a pressure head, wherein the pair of supporting seats are arranged at two sides of the top of the base at intervals, a supporting roller is arranged at the top end of each supporting seat, an annular first groove is arranged on the surface of each supporting roller, the telescopic cylinder is fixed above the base, the pressure head is connected to the bottom end of a piston rod of the telescopic cylinder, and at least one second groove arranged along the length direction of the pressure head is formed in the bottom surface of the pressure head in a recessed manner. The steel pipe is placed in the first groove, the telescopic cylinder drives the pressing head to punch the steel pipe, and the first groove and the second groove limit the steel pipe in the process of gradual deformation of the steel pipe, so that the steel pipe can be formed in a normal bending mode.

With respect to the related art in the above-mentioned comparison document, the inventors consider that the following drawbacks exist: in order to ensure the normal bending of the steel pipe, the steel pipe is accurately placed before bending. Among the above-mentioned technical scheme, the roller that only is located steel pipe both ends position department can regard as putting reference object of steel pipe. The supporting roller is a revolving body, the side surface of the supporting roller is an arc surface, and the steel pipe is easily deviated when being placed on the supporting roller, so that the steel pipe is inconvenient to accurately place, and the steel pipe cannot be accurately bent and formed.

SUMMERY OF THE UTILITY MODEL

In order to guarantee that the steel pipe is comparatively accurate the bending shaping, this application provides a steel pipe bending punch press.

The application provides a steel pipe bending punch press adopts following technical scheme:

the utility model provides a steel pipe press bending punch press, includes the workstation, the fixed pneumatic cylinder that is equipped with on the workstation, the vertical downward setting of tip of pneumatic cylinder piston rod, briquetting under fixedly connected with on the workstation, establish to the arc on the up end of briquetting down, the end connection of pneumatic cylinder piston rod has last briquetting, it is located the top of briquetting down to go up the briquetting, the shape of going up the briquetting sets up with the shape phase-match of briquetting down, the lower terminal surface of going up the briquetting establishes to the arc with the up end laminating of briquetting down, the last terminal surface of briquetting is seted up down and is link up the lower indent that link up briquetting length direction both ends face down, it establishes to the arc to push down the indent.

Through adopting above-mentioned technical scheme, after the indent was put into to the steel pipe, because the area of contact of indent and steel pipe is great, the indent played limiting displacement to the steel pipe down to there is stronger frictional force in indent and steel pipe, the steel pipe is difficult for producing the slip in the indent down, makes things convenient for the steel pipe to put accurately. The steel pipe that puts receives the limiting displacement of indent down at the in-process of bending, can bend the shaping comparatively accurately.

Preferably, the lower end face of the upper pressing block is provided with an upper pressing groove which penetrates through two end faces of the upper pressing block in the length direction, and the upper pressing groove is arc-shaped.

Through adopting above-mentioned technical scheme, at the in-process of briquetting under the last briquetting punching press, go up the indent and have limiting displacement to the steel pipe, along with the indent and the area of contact of going up indent and steel pipe are bigger and bigger, go up the indent and the limiting displacement of indent to the steel pipe is more and more strong down, can prevent to a certain extent that the steel pipe from the horizontal slip on the width direction of briquetting down, guarantees that the steel pipe is the shaping of bending comparatively accurately.

Preferably, the lower terminal surface of going up the briquetting is equipped with the arch, the up end of briquetting is equipped with the recess down, the arch is located one side of last indent, the recess is located one side of indent down, the arch is located directly over the recess, arch and recess shape phase-match set up.

Through adopting above-mentioned technical scheme, protruding cooperation with the recess has limiting displacement to last briquetting and lower briquetting, makes and goes up the briquetting and can carry out more accurate contact laminating with lower briquetting to the briquetting and the contact of lower briquetting and steel pipe are inseparabler in the messenger, and the shaping of bending comparatively accurately is pressed in order to guarantee the steel pipe.

Preferably, both ends of the lower pressing block in the length direction are provided with limiting blocks for limiting two end faces of the steel pipe.

Through adopting above-mentioned technical scheme, two stoppers can carry on spacingly to the steel pipe, put the steel pipe well, guarantee that the steel pipe is comparatively accurate bending and shaping.

Preferably, the workbench is provided with two cylinders, the two cylinders are located at two ends of the length direction of the lower pressing block, the cylinder bodies of the two cylinders are fixed on the workbench, and the end parts of the cylinder piston rods are fixedly connected with the limiting blocks.

Through adopting above-mentioned technical scheme, the stopper can be on the workstation horizontal slip, and after the stopper was spacing to the steel pipe, briquetting down can be kept away from to the stopper to lead to the fact wearing and tearing to the stopper when reducing last briquetting and the lower briquetting steel pipe of buckling, prolong the life of stopper.

Preferably, the end face of the limiting block close to the lower pressing block is fixedly connected with a contact block, the area of the end face of the contact block close to the lower pressing block is larger than the cross sectional area of the lower pressing groove, cushion pads are arranged on the two end faces of the lower pressing block in the length direction, and the thickness of each cushion pad is larger than that of each contact block.

Through adopting above-mentioned technical scheme, the contact of blotter and stopper is earlier than the contact of steel pipe with the contact piece, therefore the blotter can the kinetic energy when partly stopper and lower briquetting contact, when making contact piece and lower briquetting contact, can carry on spacingly to the steel pipe, produces less impact to the steel pipe simultaneously to reduce the harmful effects to the steel pipe production, in order to guarantee that the steel pipe is the shaping of bending comparatively accurately.

Preferably, two side stoppers are fixedly connected to the end face, close to the lower pressing block, of the limiting block, the two side stoppers are located on two sides of the contact block, the distance between the two side stoppers is equal to the width of the lower pressing groove, the highest point of the upper end face of the lower pressing block is flush with the highest point of the upper end face of the lower pressing block, and the length of the side stoppers in the length direction of the lower pressing block is greater than that of the contact block.

Through adopting above-mentioned technical scheme, when the contact block carries on spacingly to the both ends of steel pipe, the side dog can carry on spacingly to the both sides of steel pipe to after guaranteeing that the contact block strikes the steel pipe, the steel pipe does not have horizontal migration, still lies in the indent down, guarantees that the steel pipe is comparatively bent the shaping accurately.

Preferably, an upper stop block is arranged on the limiting block, and the lower side surface of the upper stop block is fixedly connected with the upper side surfaces of the two side stop blocks.

Through adopting above-mentioned technical scheme, after the contact piece impacted the steel pipe, go up the dog and guarantee that the steel pipe can not pop out the indent down, guarantee that the steel pipe is comparatively accurate bending and shaping.

Preferably, the side surfaces of the lower press blocks in the length direction are fixedly connected with limiting plates, the limiting plates are vertically arranged, and the heights of the upper end surfaces of the limiting plates are greater than the heights of the upper end surfaces of the two end portions of the lower press blocks in the length direction.

Through adopting above-mentioned technical scheme, the limiting plate can prevent to a certain extent at the in-process of bending, briquetting under the steel pipe roll-off to guarantee that the steel pipe is comparatively bent the shaping accurately.

Preferably, the upper end of the limiting plate is inclined in the direction away from the lower pressing block.

Through adopting above-mentioned technical scheme, the limiting plate has certain guide effect, when putting the steel pipe, only needs to make the steel pipe fall along the slope position of limiting plate, and the steel pipe will fall into down the indent to make the steel pipe can put fast, improved machining efficiency.

In summary, the present application includes at least one of the following beneficial technical effects:

1. after the steel pipe is placed into the lower pressing groove, the contact area between the lower pressing groove and the steel pipe is large, the lower pressing groove plays a limiting role for the steel pipe, strong friction force exists between the lower pressing groove and the steel pipe, the steel pipe is not prone to sliding in the lower pressing groove, and the steel pipe is convenient to place accurately. The placed steel pipe is limited by the lower pressure groove in the bending process, so that the steel pipe can be bent and formed more accurately;

2. in the process of punching the lower pressing block by the upper pressing block, the upper pressing groove has a limiting effect on the steel pipe, and along with the fact that the contact areas of the lower pressing groove and the steel pipe are larger and larger, the limiting effect of the upper pressing groove and the lower pressing groove on the steel pipe is stronger and stronger, the steel pipe can be prevented from horizontally sliding in the width direction of the lower pressing block to a certain extent, and the steel pipe is guaranteed to be bent and formed accurately;

3. the contact of blotter and stopper is earlier than the contact of steel pipe with the contact piece, therefore the blotter can the neutralization part stopper with the kinetic energy when the contact piece contacts down, when making the contact piece contact down with the contact piece, can carry on spacingly to the steel pipe, produce less impact to the steel pipe simultaneously to reduce the harmful effects to the steel pipe production, in order to guarantee that the steel pipe is the shaping of bending comparatively accurately.

Drawings

FIG. 1 is a schematic view of the overall structure of a steel pipe bending press;

FIG. 2 is a perspective view highlighting the location and structure of various components of a steel pipe press bending punch;

FIG. 3 is a schematic plan view showing the positional relationship between the press-down block and the stopper in the case of protrusion.

Description of reference numerals: 1. a work table; 2. pressing the block; 3. a hydraulic cylinder; 4. pressing the blocks; 5. pressing the groove downwards; 6. pressing the groove upwards; 7. a protrusion; 8. a groove; 9. a limiting block; 10. a cylinder; 11. a contact block; 12. a cushion pad; 13. a side stop block; 14. an upper stop block; 15. a limiting plate; 16. connecting columns; 17. connecting blocks; 18. a connecting plate; 19. and a support plate.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a steel pipe bending punch press. Referring to fig. 1, a steel pipe bending punch press includes workstation 1 and the pneumatic cylinder 3 that is located workstation 1 top, and four spliced poles 16 of vertical fixedly connected with on workstation 1, four spliced poles 16 pass through connecting plate 18 and the cylinder body fixed connection of pneumatic cylinder 3 above it.

Referring to fig. 1, a lower pressing block 2 is fixedly connected to a worktable 1, the upper end surface of the lower pressing block 2 is arc-shaped, a lower pressing groove 5 is formed in the upper end surface of the lower pressing block 2, and the lower pressing groove 5 penetrates through two end surfaces of the lower pressing block 2 in the length direction. The tip fixedly connected with connecting block 17 of the pneumatic cylinder 3 piston rod, four spliced poles 16 all wear to establish in connecting block 17. Briquetting 4 on the lower terminal surface fixedly connected with of connecting block 17, upward briquetting 4 is located briquetting 2 down directly over, and the shape of going up briquetting 4 sets up with briquetting 2's shape phase-match down, and the lower terminal surface of going up briquetting 4 establishes to the arc with the laminating of briquetting 2 up end down, and last indent 6 has been seted up to the lower terminal surface of going up briquetting 4, goes up indent 6 and link up briquetting 4 length direction's both ends face. Referring to fig. 2, the upper and

lower push grooves

6 and 5 are formed in a semi-cylindrical shape, and have the same radius as the steel pipe.

Before the steel pipe is bent, the steel pipe is placed into the lower pressure groove 5, the hydraulic cylinder 3 drives the upper pressing block 4 to punch downwards, and the steel pipe is bent through the extrusion fit of the upper pressure groove 6 and the lower pressure groove 5. In the process of bending the steel pipe, the four connecting columns 16 limit the upper pressing block 4, and the upper pressing block 4 is guaranteed to move in the vertical direction all the time.

Referring to fig. 2, two vertically arranged limiting plates 15 are fixedly connected to two side faces of the lower pressing block 2 in the length direction, the upper end portions of the limiting plates 15 are arranged in an inclined manner in the direction away from the lower pressing block 2, and the height of the upper end face of each limiting plate 15 is larger than that of the upper end faces of the two end portions of the lower pressing block 2 in the length direction.

Before bending the steel pipe, the steel pipe falls along the inclined part of the limiting plate 15, and the steel pipe can quickly enter the lower pressing groove 5 under the guidance of the limiting plate 15. In the process of bending the steel pipe, the limiting plate 15 can prevent the steel pipe from being extruded out of the lower pressing block 2.

Referring to fig. 1, two ends of the length direction of the lower pressing block 2 are provided with limiting blocks 9, and the limiting blocks 9 are used for limiting two end faces of the steel pipe. Two cylinders 10 are oppositely arranged on the workbench 1, the two cylinders 10 are positioned at two ends of the length direction of the lower pressing block 2, and cylinder bodies of the two cylinders 10 are fixedly connected with the workbench 1 through a supporting plate 19. The end of the piston rod of the cylinder 10 is fixedly connected with the limiting block 9. After the steel pipe is put into the lower pressure groove 5, the two air cylinders 10 drive the two limiting blocks 9 to limit the two ends of the steel pipe.

Referring to fig. 2, the end face of the limiting block 9 close to the lower pressing block 2 is fixedly connected with a contact block 11, and the area of the end face of the contact block 11 close to the lower pressing block 2 is larger than the cross-sectional area of the lower pressing groove 5. Referring to fig. 3, two cushions 12 are fixedly connected to both end surfaces of the lower press block 2 in the length direction, the cushions 12 may be rubber cushions 12, and the thickness of the cushions 12 is greater than that of the contact block 11.

After the steel pipe is placed in the lower pressure groove 5, the air cylinder 10 drives the limiting block 9 to move towards the direction close to the lower pressure block 2, and the contact block 11 limits the steel pipe. The blotter 12 contacts with stopper 9 at the in-process that contact piece 11 moved to briquetting 2 down in advance to cushion stopper 9, reduce the impact of contact piece 11 to the steel pipe.

Referring to fig. 2, two side stoppers 13 are fixedly connected to the end surface of the limiting block 9 close to the lower pressing block 2, the two side stoppers 13 are located at two sides of the contact block 11, and the distance between the two side stoppers 13 is the same as the width of the lower pressing groove 5. Referring to fig. 3, the lower end surface of the side stopper 13 is flush with the highest point of the upper end surface of the lower pressing block 2, and the length of the side stopper 13 in the length direction of the lower pressing block 2 is greater than that of the contact block 11. When the contact block 11 impacts the steel pipe, the side stopper 13 limits both sides of the steel pipe, preventing the steel pipe from being pushed out of the lower groove 5 in the horizontal direction by the impact.

Referring to fig. 2, an upper stopper 14 is disposed on the stopper 9, and the lower side surface of the upper stopper 14 is fixedly connected to the upper side surfaces of the two side stoppers 13. When the contact block 11 impacts the steel pipe, the upper stopper 14 limits the upper side of the steel pipe, and prevents the steel pipe from being vertically ejected out of the lower pressure groove 5 due to the impact.

Referring to fig. 2, the lower end surface of the upper pressing block 4 is provided with a plurality of protrusions 7, the upper end surface of the lower pressing block 2 is provided with a plurality of grooves 8, and the protrusions 7 and the grooves 8 are arranged correspondingly in position and are matched in shape. When the upper pressing block 4 and the lower pressing block 2 bend the steel pipe, the protrusion 7 and the groove 8 are matched with each other, so that the upper pressing block 4 and the lower pressing block 2 are in contact fit more accurately.

The implementation principle of the steel pipe bending punch press in the embodiment of the application is as follows: before bending the steel pipe, the steel pipe is put into the lower pressure groove 5.

Then the cylinder 10 stroke drives stopper 9 and slides to the both ends of 2 length direction of briquetting down, and at the gliding in-process of stopper 9, blotter 12 and stopper 9 contact cushion stopper 9 to the terminal surface contact of contact block 11 and briquetting 2 down, the contact block is spacing to the steel pipe.

The steel pipe impacted by the contact block 11 is limited by the side stop 13 and the upper stop 14 and still positioned in the lower pressure groove 5.

After the steel pipe is stable, the cylinder 10 returns to make the contact block 11, the side block 13 and the upper block 14 far away from the lower pressing block 2.

And finally, starting the hydraulic cylinder 3 to bend the steel pipe.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a steel pipe press bending punch press, includes workstation (1), fixed pneumatic cylinder (3) that are equipped with on workstation (1), the vertical downward setting of tip of pneumatic cylinder (3) piston rod, its characterized in that: briquetting (2) under fixedly connected with on workstation (1), establish to the arc upper end surface of briquetting (2) down, the end connection of pneumatic cylinder (3) piston rod has last briquetting (4), it is located the top of briquetting (2) down to go up briquetting (4), the shape of going up briquetting (4) sets up with the shape phase-match of briquetting (2) down, the lower terminal surface of going up briquetting (4) establishes to the arc with the up end laminating of briquetting (2) down, lower indent (5) that run through briquetting (2) length direction both ends face down are seted up to the up end of briquetting (2) down, indent (5) are established to the arc down.

2. The steel pipe press bending machine according to claim 1, wherein: the lower end face of the upper pressing block (4) is provided with an upper pressing groove (6) penetrating through two end faces of the upper pressing block (4) in the length direction, and the upper pressing groove (6) is arc-shaped.

3. The steel pipe press bending machine according to claim 2, wherein: go up the lower terminal surface of briquetting (4) and be equipped with arch (7), the up end of briquetting (2) is equipped with recess (8) down, arch (7) are located one side of indent (6), recess (8) are located one side of indent (5) down, arch (7) are located recess (8) directly over, arch (7) and recess (8) shape phase-match set up.

4. The steel pipe press bending machine according to claim 1, wherein: and two ends of the lower pressing block (2) in the length direction are respectively provided with a limiting block (9) used for limiting two end faces of the steel pipe.

5. The steel pipe press bending machine according to claim 4, wherein: be equipped with two cylinders (10) on workstation (1), two cylinder (10) are located briquetting (2) length direction's both ends down, two the cylinder body of cylinder (10) is all fixed on workstation (1), the tip and stopper (9) fixed connection of cylinder (10) piston rod.

6. The steel pipe press bending machine according to claim 5, wherein: the end face fixedly connected with contact block (11) that stopper (9) are close to briquetting (2) down, the terminal surface area that contact block (11) are close to briquetting (2) down is greater than the cross-sectional area of indent (5) down, all be equipped with blotter (12) on briquetting (2) length direction's the both ends face down, the thickness of blotter (12) is greater than the thickness of contact block (11).

7. The steel pipe press bending machine according to claim 6, wherein: the limiting block (9) is close to two side stop blocks (13) fixedly connected to the end face of the lower pressing block (2), the side stop blocks (13) are located on two sides of the contact block (11), the distance between the side stop blocks (13) is the same as the width of the lower pressing groove (5), the lower end face of the side stop block (13) is flush with the highest point of the upper end face of the lower pressing block (2), and the length of the side stop block (13) in the length direction of the lower pressing block (2) is larger than that of the contact block (11).

8. The steel pipe press bending machine according to claim 7, wherein: an upper stop block (14) is arranged on the limiting block (9), and the lower end face of the upper stop block (14) is fixedly connected with the upper end faces of the two side stop blocks (13).

9. The steel pipe press bending machine according to claim 1, wherein: the side face of the length direction of the lower pressing block (2) is fixedly connected with a limiting plate (15), the limiting plate (15) is vertically arranged, and the height of the upper end face of the limiting plate (15) is larger than the height of the upper end faces of the two end portions of the length direction of the lower pressing block (2).

10. The steel pipe press bending machine according to claim 9, wherein: the upper end part of the limiting plate (15) is obliquely arranged in the direction away from the lower pressing block (2).