CN219169281U

CN219169281U - Hydraulic bending machine

Info

Publication number: CN219169281U
Application number: CN202223363496.8U
Authority: CN
Inventors: 姜琨渝
Original assignee: Jiangmen Shunhong Equipment Manufacturing Co ltd
Current assignee: Jiangmen Shunhong Equipment Manufacturing Co ltd
Priority date: 2022-12-14
Filing date: 2022-12-14
Publication date: 2023-06-13
Anticipated expiration: 2032-12-14

Abstract

The utility model discloses a hydraulic bending machine, which comprises a bending machine support, a workbench, a clamping plate, a hydraulic cylinder, a bending head connecting frame and a bending head, wherein the bending machine support is vertically arranged; the workbench comprises a base and a coil, wherein the base is movably arranged on a clamping plate, a concave groove which is correspondingly matched with the bending head is formed in the center position from the top to the bottom of the base in a downward concave manner, the coil is arranged on the side part of the base in a built-in manner and surrounds the concave groove, the coil is connected with a wire, and a metal cover plate workpiece which covers the concave groove and generates electromagnetic force after the coil is electrified is adsorbed on the top of the base. The integral hydraulic bending machine is simple to operate, the problems of appearance impression, deformation and the like generated when the traditional clamp clamps a workpiece are avoided, and the side wall of the metal cover plate workpiece can be bent.

Description

Hydraulic bending machine

Technical Field

The utility model relates to the technical field of bending machines, in particular to a hydraulic bending machine which uses an electromagnetic force adsorption clamping mode to realize bending processing of clamping a workpiece without a clamp.

Background

At present, when processing thin plates, strip-shaped workpieces and the like, bending working procedures are needed to be performed to bend the thin plates, the strip-shaped workpieces into special-shaped workpieces or bending workpieces, and bending working procedures are basically realized by adopting bending machines; the bending mode of the bending machine is generally that a bending punch is arranged above, a clamp for clamping a workpiece, a die for supporting a supporting clamp and the like are arranged below, and the workpiece is pressed down by the bending punch to achieve the purpose of bending. However, the bending machine in the prior art has a few problems in the bending process, specifically as follows: (1) When the clamp clamps the workpiece, the clamping part of the workpiece is easy to cause an impression, and the appearance of the bent workpiece is influenced and the appearance defect is caused. (2) When the clamp clamps thin plate workpieces such as thin plate sectional materials, the excessive clamping force easily causes deformation of the thin plate workpieces, so that the workpieces need to be subjected to secondary correction or waste treatment when serious. (3) When the clamp clamps a workpiece, the outer side of the workpiece is clamped to clamp the workpiece (such as a thin plate workpiece), but when the side wall of the workpiece is required to be bent, the clamp can obstruct the bending action and space of the workpiece, so that the side wall of the workpiece is difficult to bend or the side wall cannot be bent. (4) When the workpiece is bent once, the workpiece is required to be bent twice or bent for a plurality of times to form a special-shaped bent workpiece or a plurality of bent workpiece products, the clamping positions of the clamping workpiece are required to be adjusted for a plurality of times by adopting the traditional clamp, so that the purpose of secondary bending or bending for a plurality of times is realized, the continuous bending process is carried out, clamping adjustment of each time is required to operate clamping loosening, clamping and the like, the operation is troublesome, and when some workpieces have no clamping positions but still need to be bent, the traditional clamp at the moment cannot be suitable for the continuous bending process again, so that the products cannot be finished by final processing; or the special fixture is replaced and installed for continuing the bending processing procedure, and the added fixture can cause high processing cost and fixture stock quantity, which is not beneficial to the effective optimization of the production space, and the like.

Therefore, there is a need for improvements in the art of bender construction.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art, and provides a hydraulic bending machine which adopts the principle that a coil is electrified to generate an electromagnetic field to realize the holding and fixing of a metal sheet workpiece so as to achieve the purpose of holding and fixing a metal cover plate workpiece, and a traditional clamp structure in the prior art is not required to be applied to a product bending process, so that the problems existing in the process of clamping the cover plate workpiece by the traditional clamp are solved; when the metal cover plate bending device is used, a wire is used for electrifying the coil, electromagnetic attraction is generated after electrifying to clamp a metal cover plate workpiece at the bottom position of the base, then the bending head is driven by the hydraulic oil cylinder to press down, and the bending head presses down the appointed position of the metal cover plate workpiece to be pressed into the concave groove, so that the purpose of bending the metal cover plate workpiece is achieved; the whole hydraulic bending machine is simple to operate, the problems of appearance impression, deformation and the like generated when the traditional clamp clamps a workpiece are avoided, and the side wall of the metal cover plate workpiece can be subjected to bending processing, so that the metal cover plate workpiece can be made into various workpiece requirements, meanwhile, the base is movably arranged on the clamping plate, the base is convenient to replace so as to be suitable for replacement of different bending dies, and the disassembly and assembly are easy; the bending head and the bending head connecting frame are connected through a bolt and other structures, so that the assembly and the disassembly are convenient and easy, and the replacement of bending punches (namely the bending heads) and the like with different bending requirements is realized.

The technical scheme adopted for solving the technical problems is as follows: a hydraulic bending machine comprises a bending machine support, a workbench, a clamping plate, a hydraulic cylinder, a bending head connecting frame and a bending head, wherein the bending machine support is vertically arranged, the workbench support is arranged on the bending machine support, the workbench is arranged on the workbench support, the clamping plate is movably arranged on the workbench support and is arranged on the workbench, the hydraulic cylinder is arranged at the top of the bending machine support, the bending head connecting frame is arranged on a compression bar at the bottom of the hydraulic cylinder, and the bending head is connected with the bending head connecting frame; the workbench consists of a base and a coil, wherein the base is movably arranged on a clamping plate, a concave groove which is correspondingly matched with the bending head is formed in the center position of the bottom from the top to the lower part in a downward concave mode, the coil is arranged on the side portion of the base in a built-in mode and surrounds the concave groove, the coil is connected with a wire, the top of the base is provided with a metal cover plate workpiece which covers the concave groove and generates electromagnetic force when the coil is electrified to be adsorbed on the top of the base.

Further, the outside level of bender support bottom outwards extend and have the hydraulic oil holding vessel base, hydraulic oil holding vessel base top is provided with the hydraulic oil holding vessel, still is equipped with on the hydraulic oil holding vessel base top and upwards protrudes and be annular distribution and arrange in the hydraulic oil holding vessel outside as the spacing riser that prescribes a limit to the use of hydraulic oil holding vessel, be connected with an oil supply pipe and an oil return pipe between hydraulic oil holding vessel and the hydraulic cylinder.

Furthermore, the bending head connecting frame is of a square frame structure, and a bending head penetrating notch allowing the bending head to penetrate out is arranged at the bottom of the bending head connecting frame; the bending head is in an inverted T shape, the top of the bending head is clamped into the bending head connecting frame and fixedly installed through bolts, the middle lower part of the bending head penetrates out of the bending head, and the bottom of the bending head is in a semicircular shape to form a U-shaped extension part of the bending head.

Further, the concave groove is a U-shaped concave position which is matched with and correspondingly arranged on the extending part of the bending head.

Further, the metal cover plate workpiece is a flat metal plate.

Further, the bottom of the bending machine support is provided with a support base, the front end and the rear end of the support base horizontally extend outwards to form support legs capable of preventing overturning, and the end parts of the support legs are triangular tip shapes.

Further, a front support plate and a rear support plate are arranged in front of and behind the bending machine support, and a reinforcing connecting plate is arranged between the front support plate and the rear support plate; the top of the bending machine bracket is provided with a hydraulic cylinder mounting seat connected and mounted with the hydraulic cylinder.

Further, the base is movably arranged on the clamping plate through a hinge.

In summary, the hydraulic bending machine provided by the utility model adopts the principle that the coil is electrified to generate an electromagnetic field to realize the holding and fixing of the metal sheet workpiece so as to achieve the purpose of holding and fixing the metal cover plate workpiece, and a traditional clamp structure in the prior art is not required to be applied to a product bending process, so that the problem existing in the process of clamping the cover plate workpiece by the traditional clamp is solved; when the metal cover plate bending device is used, a wire is used for electrifying the coil, electromagnetic attraction is generated after electrifying to clamp a metal cover plate workpiece at the bottom position of the base, then the bending head is driven by the hydraulic oil cylinder to press down, and the bending head presses down the appointed position of the metal cover plate workpiece to be pressed into the concave groove, so that the purpose of bending the metal cover plate workpiece is achieved; the whole hydraulic bending machine is simple to operate, the problems of appearance impression, deformation and the like generated when the traditional clamp clamps a workpiece are avoided, and the side wall of the metal cover plate workpiece can be subjected to bending processing, so that the metal cover plate workpiece can be made into various workpiece requirements, meanwhile, the base is movably arranged on the clamping plate, the base is convenient to replace so as to be suitable for replacement of different bending dies, and the disassembly and assembly are easy; the bending head and the bending head connecting frame are connected through a bolt and other structures, so that the assembly and the disassembly are convenient and easy, and the replacement of bending punches (namely the bending heads) and the like with different bending requirements is realized.

Drawings

Fig. 1 is a schematic view of a hydraulic bending machine according to embodiment 1 of the present utility model;

FIG. 2 is an enlarged schematic view at A in FIG. 1;

fig. 3 is an enlarged schematic view at B in fig. 1.

Detailed Description

Example 1

As shown in fig. 1, 2 and 3, a hydraulic bending machine described in this embodiment 1 includes a bending machine support 1 installed vertically, a table support 2 installed on the bending machine support, a table 3 installed on the table support, a clamping plate 4 installed on the table support and forming a movable installation with the table, a hydraulic cylinder (not shown) installed on the top of the bending machine support, a bending head connecting frame 5 installed on a compression bar 22 at the bottom of the hydraulic cylinder, and a bending head 6 installed in connection with the bending head connecting frame; the workbench consists of a base 7 and a coil (not shown in the figure), wherein the base is movably arranged on a clamping plate, a concave groove 8 which is correspondingly matched with the bending head is formed in the center position of the bottom from the top to the bottom in a downward concave manner, the coil is arranged on the side part of the base in a built-in manner and surrounds the concave groove, the coil is connected with a wire (not shown in the figure), and a metal cover plate workpiece 9 which covers the concave groove and generates electromagnetic force to be adsorbed on the top of the base after the coil is electrified is arranged on the top of the base.

The bending machine support is a mounting structure fixedly erected on the ground, the workbench support is fixedly mounted in the middle of the bending machine support and used for supporting and mounting a workbench, the clamping plate is used as a supporting base of the whole workbench, so that the workbench is stably mounted, the clamping plate and the workbench are movably mounted, the workbench can be conveniently dismounted and mounted, and the workbench which is required to be suitable for bending can be replaced; the hydraulic cylinder is arranged at the top of the bending machine support, when the hydraulic cylinder works, the pressure lever at the bottom power output end of the hydraulic cylinder drives the bending head connecting frame and the bending head to press downwards, the bending head presses the metal cover plate right below to work and presses the metal cover plate into the concave groove of the base, and finally the bending effect of the metal cover plate workpiece is formed. The workbench has the function similar to a die in the bending process and is used for bending a metal cover plate workpiece with a corresponding matched bending head. When the bending starts to work, the metal cover plate workpiece is prevented from being at the top of the base, the metal cover plate workpiece can cover the top of the concave groove, then the conducting wire is electrified, electromagnetic force is generated after the coil in the base is electrified, the metal cover plate workpiece is sucked to form the metal cover plate workpiece to be clamped and fixed at the top of the base, then the bending head (similar to the action of a bending punch) is pressed downwards, the bending head and the part of the metal cover plate workpiece needing to be bent are pressed into the concave groove together to form the effect that the metal cover plate workpiece is bent, then the coil is powered off, and the bending head is reset upwards, so that the bent workpiece product can be taken out. The coil is electrified to generate electromagnetic force to clamp the metal cover plate workpiece, so that bending of the middle part and other positions of the metal cover plate workpiece can be realized, bending of the side part and the side part of the metal cover plate workpiece can be realized, bending of the workpiece such as a support leg can be realized, bending procedures can be performed on the workpiece which is made of metal and has a certain plane, and after primary bending is completed, the metal cover plate workpiece is moved once, and secondary bending and other works can be performed; according to the bending requirements of different workpieces, the bending head and the proper workbench are replaced, so that the bending head is convenient and flexible, and the bending head is easy to assemble, disassemble and replace.

In this embodiment 1, the outer side of the bottom of the bending machine support horizontally extends outwards to form a hydraulic oil storage tank base 10, a hydraulic oil storage tank (not shown in the figure) is arranged at the top of the hydraulic oil storage tank base, four limiting risers 11 protruding upwards and distributed annularly and arranged at the outer side of the hydraulic oil storage tank and used for limiting the hydraulic oil storage tank are further arranged at the top of the hydraulic oil storage tank base, and an oil supply pipe 12 and an oil return pipe 13 are connected between the hydraulic oil storage tank and the hydraulic oil cylinder. The hydraulic oil of the hydraulic oil cylinder is supplied by the hydraulic oil storage tank, when the hydraulic oil cylinder works, the extruded hydraulic oil flows back to the hydraulic oil storage tank through the oil return pipe, and when the hydraulic oil cylinder resets, the hydraulic oil of the hydraulic oil storage tank is supplied into the hydraulic oil cylinder through the oil supply pipe; thus, the hydraulic oil of the hydraulic oil cylinder can be continuously and circularly supplied and recycled, and the stable work of the linear reciprocating motion of the hydraulic oil cylinder is ensured. The hydraulic oil storage tank base is used for supporting and installing the hydraulic oil storage tank, and the four limiting vertical plates prevent the hydraulic oil storage tank from being shifted and overturned due to limiting effect of limiting the outer side of the hydraulic oil storage tank.

In the embodiment 1, the bending head connecting frame has a square frame structure and is provided with a bending head penetrating notch 14 at the bottom for allowing the bending head to penetrate out; the bending head is in an inverted T shape, the top of the bending head is clamped into the bending head connecting frame and fixedly installed by bolts 15, the middle lower part of the bending head penetrates out of the bending head, and the bottom of the bending head is in a semicircular shape to form a U-shaped extension part of the bending head. The bottom of the bending elbow is arranged in the bending elbow connecting frame, penetrates out of the notch through the bending elbow, is limited and the like, and can be replaced with bending elbows with different sizes and specifications, bending heads with different bottom shapes (not limited to U-shaped) and the like according to different bending requirements, and meanwhile, the workbench matched with the bending heads can be replaced.

In this embodiment 1, the concave slot is a U-shaped concave slot that is disposed in a matching and corresponding manner to the protruding portion of the bending head. The concave position is a U-shaped concave position which is matched with the U shape of the bending head, and the U-shaped concave position is slightly larger than the U shape of the bending head, so that the bending head and the metal cover plate workpiece can be pressed into the U-shaped concave position. In addition, according to different specification sizes and shapes of the bending head, the base matched with the bending head in the concave groove position can be replaced, and the base is not limited to the base with the U-shaped concave position.

In this embodiment 1, the metal cover plate workpiece is a flat metal plate. The metal cover plate workpiece is a flat sheet member, so that the bending is convenient; the metal cover plate workpiece can also be an irregular thin plate, such as a workpiece which is bent once, a workpiece with a bending part, a workpiece with a coiling part and the like, and the metal cover plate workpiece which has a flat surface and is arranged at the top of the base and does not hinder bending head and base bending work when being clamped and bent by electromagnetic absorption is also suitable for the bending work.

In this embodiment 1, a support base 16 is provided at the bottom of the bending machine support, and support legs 17 for preventing overturning are horizontally extended outwards from the front and rear ends of the support base, and the end parts of the support legs are in triangular tip shapes.

In the embodiment 1, the bending machine support is provided with a front support plate 18 and a rear support plate 19 in a front-rear distribution manner, and a reinforcing connection plate 20 is arranged between the front support plate and the rear support plate; the top of the bending machine bracket is provided with a hydraulic cylinder mounting seat 21 connected and mounted with the hydraulic cylinder.

In this embodiment 1, the base is movably mounted to the clamping plate by a hinge (not shown).

The hydraulic bending machine realizes the holding and fixing of the metal sheet workpiece by adopting the principle that the coil is electrified to generate an electromagnetic field so as to achieve the purpose of holding and fixing the metal cover plate workpiece, and the conventional clamp structure in the prior art is not required to be applied to a product bending process, so that the problem existing when the cover plate workpiece is clamped by the conventional clamp is solved; when the metal cover plate bending device is used, a wire is used for electrifying the coil, electromagnetic attraction is generated after electrifying to clamp a metal cover plate workpiece at the bottom position of the base, then the bending head is driven by the hydraulic oil cylinder to press down, and the bending head presses down the appointed position of the metal cover plate workpiece to be pressed into the concave groove, so that the purpose of bending the metal cover plate workpiece is achieved; the whole hydraulic bending machine is simple to operate, the problems of appearance impression, deformation and the like generated when the traditional clamp clamps a workpiece are avoided, and the side wall of the metal cover plate workpiece can be subjected to bending processing, so that the metal cover plate workpiece can be made into various workpiece requirements, meanwhile, the base is movably arranged on the clamping plate, the base is convenient to replace so as to be suitable for replacement of different bending dies, and the disassembly and assembly are easy; the bending head and the bending head connecting frame are connected through a bolt and other structures, so that the assembly and the disassembly are convenient and easy, and the replacement of bending punches (namely the bending heads) and the like with different bending requirements is realized.

The above description is only of the preferred embodiment of the present utility model, and is not intended to limit the structure of the present utility model in any way. Any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims

1. The hydraulic bending machine is characterized by comprising a bending machine support, a workbench, a clamping plate, a hydraulic cylinder, a bending head connecting frame and a bending head, wherein the bending machine support is vertically arranged, the workbench support is arranged on the bending machine support, the workbench is arranged on the workbench support, the clamping plate is arranged on the workbench support and forms movable installation with the workbench, the hydraulic cylinder is arranged at the top of the bending machine support, the bending head connecting frame is arranged on a compression bar at the bottom of the hydraulic cylinder, and the bending head is connected with the bending head connecting frame; the workbench consists of a base and a coil, wherein the base is movably arranged on a clamping plate, a concave groove which is correspondingly matched with the bending head is formed in the center position of the bottom from the top to the lower part in a downward concave mode, the coil is arranged on the side portion of the base in a built-in mode and surrounds the concave groove, the coil is connected with a wire, the top of the base is provided with a metal cover plate workpiece which covers the concave groove and generates electromagnetic force when the coil is electrified to be adsorbed on the top of the base.

2. The hydraulic bending machine according to claim 1, wherein a hydraulic oil storage tank base horizontally extends outwards from the outer side of the bottom of the bending machine support, a hydraulic oil storage tank is arranged at the top of the hydraulic oil storage tank base, a plurality of limiting vertical plates protruding upwards and distributed annularly and arranged on the outer side of the hydraulic oil storage tank and used for limiting the hydraulic oil storage tank are further arranged on the top of the hydraulic oil storage tank base, and an oil supply pipe and an oil return pipe are connected between the hydraulic oil storage tank and the hydraulic oil cylinder.

3. The hydraulic bending machine according to claim 2, wherein the bending head connecting frame is of a square frame structure, and a bending head penetrating notch allowing the bending head to penetrate is formed in the bottom of the bending head connecting frame; the bending head is in an inverted T shape, the top of the bending head is clamped into the bending head connecting frame and fixedly installed through bolts, the middle lower part of the bending head penetrates out of the bending head, and the bottom of the bending head is in a semicircular shape to form a U-shaped extension part of the bending head.

4. A hydraulic bending machine according to claim 3, wherein the recess is a U-shaped recess arranged in a matching correspondence with the protruding portion of the bending head.

5. A hydraulic bending machine according to claim 4, wherein the metal cover plate workpiece is a flat sheet metal material.

6. A hydraulic bending machine according to claim 5, wherein a bracket base is provided at the bottom of the bending machine bracket, and support legs for preventing overturning are horizontally extended outwards from the front and rear ends of the bracket base, and the ends of the support legs are triangular pointed ends.

7. The hydraulic bending machine according to claim 6, wherein the bending machine support is provided with a front support plate and a rear support plate in a front-rear distribution manner, and a reinforcing connection plate is arranged between the front support plate and the rear support plate; the top of the bending machine bracket is provided with a hydraulic cylinder mounting seat connected and mounted with the hydraulic cylinder.

8. A hydraulic bending machine according to claim 7, wherein the base is movably mounted to the clamping plate by means of a hinge.