CN217192077U - Bending machine - Google Patents

Abstract

The utility model relates to a sheet metal machining technical field discloses a bender. The bender includes support body, die, terrace die, laser emitter and adsorption component, die and terrace die, sets up on the support body and all extend along the first direction, and the work piece can stretch into along the second direction the die with between the terrace die, the terrace die can be close to the die is bent with the extrusion the work piece, the second direction perpendicular to the first direction, laser emitter sets up on the support body, the light energy mark of laser emitter transmission the die is followed the central line of second direction, adsorption component puts on the support body, adsorption component can adsorb and fix the work piece, and the terrace die is right loosen after the pressure that the work piece was applyed is greater than preset pressure the work piece. The utility model discloses a bender convenient operation, to the work piece position accuracy of bending high, and then make the shaping precision of work piece high.

Description

Bending machine

Technical Field

The utility model relates to a sheet metal working technical field especially relates to a bender.

Background

The metal plate has the characteristics of light weight, high strength, low cost, good large-scale mass production performance and the like, and is widely applied to the fields of electronic appliances, communication, automobile industry, household appliances, medical appliances and the like. And for large-size box products, bending is the main forming mode of sheet metal workpieces. With the improvement of the requirements of people on the appearance of products, the shape of the box body is more and more abundant, so that a special-shaped bending workpiece without a positioning edge is often encountered, that is, a line to be bent (a dotted line position in fig. 1) of the workpiece 100 shown in fig. 1 is not parallel to any edge ridge of the workpiece, and the relative positioning between the workpiece and a bending machine is difficult during bending. If the positioning tool is provided separately for each type of workpiece, the manufacturing cost of the workpiece increases. In the prior art, the general operation method for the workpiece without the positioning edge is as follows: the alignment grooves 101 are formed in the two ends of the line to be bent, when the bending machine is bent, the alignment grooves 101 in the two ends of the workpiece 100 are aligned with the line of the female die of the bending machine through naked eyes, the workpiece position is prevented from being dislocated by manual support in the initial stage of bending action, and the whole bending operation process is low in positioning precision and inconvenient to operate.

Therefore, a bending machine is needed to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a bending machine, convenient operation, to the work piece bend the position precision high, fashioned work piece shape precision is high.

To achieve the purpose, the utility model adopts the following technical proposal:

a bending machine, comprising:

a frame body;

the female die and the male die are arranged on the frame body and extend along a first direction, a workpiece can extend into a space between the female die and the male die along a second direction, the male die can be close to the female die to extrude and bend the workpiece, and the second direction is perpendicular to the first direction;

the laser emitter is arranged on the frame body, and light rays emitted by the laser emitter can mark the center line of the female die along the second direction;

the adsorption component is arranged on the frame body and can adsorb and fix the workpiece, and the male die loosens the workpiece after the pressure applied to the workpiece by the male die is greater than the preset pressure.

Preferably, the laser emitter is arranged at one end of the concave die along the first direction, the laser emitter can emit a laser plane, and the laser plane is perpendicular to the second direction and passes through a center line of the concave die along the second direction.

Preferably, the bending machine further comprises a host module and a pressure sensor, the pressure sensor and the adsorption assembly are electrically connected with the host module, the pressure sensor is used for detecting the pressure of the male die on the workpiece, and the host module can receive the detection result of the pressure sensor and enable the adsorption assembly to loosen the workpiece when the detection result reaches a preset pressure.

Preferably, the adsorption component comprises an electromagnet, the electromagnet can adsorb and fix the workpiece after being electrified, and when the host module receives a detection result of the pressure sensor and reaches a preset pressure, the electromagnet is powered off to loosen the workpiece.

Preferably, the bending machine further comprises a first actuating member, and triggering the first actuating member enables the electromagnet to be electrified.

Preferably, the first actuator is a pedal.

Preferably, the electromagnet is arranged on one side of the female die along the second direction, and the upper surface of the electromagnet is flush with the upper surface of the female die.

Preferably, the bending machine further comprises two alignment blocks, the alignment blocks can move relative to the female die along the length direction of the female die, and the two alignment blocks can be respectively clamped in alignment grooves at two ends, to be bent, of the workpiece.

Preferably, the alignment block includes:

the body part comprises a U-shaped groove, and the U-shaped groove is clamped on the female die and can slide along the female die;

and the thimble part is connected with the body part, is aligned with the female die up and down along the central line of the second direction, and is used for abutting against the bottom of the alignment groove.

Preferably, the bending machine further comprises a second actuating member, and the second actuating member is triggered to enable the punch to approach the die and press and bend the workpiece.

The utility model discloses beneficial effect does:

when the bending machine is used, a workpiece is firstly stretched into the space between the female die and the male die along the second direction, the specific position of the central line of the female die along the second direction can be visually seen according to the light emitted by the laser generator, and then the alignment grooves at the two ends of the to-be-bent line of the workpiece can be conveniently and accurately aligned with the central line of the female die along the second direction, so that the precision of the subsequent bending position of the workpiece is ensured; the aligned workpiece can be adsorbed and fixed through the adsorption assembly, so that the workpiece position is prevented from being deviated in the initial bending stage, manual support is not needed, and the operation is more convenient; and finally, in the process that the male die is close to the female die to bend the workpiece, when the pressure applied to the workpiece by the male die is greater than the preset pressure, the adsorption component can timely loosen the workpiece, so that the workpiece can be smoothly bent. The utility model discloses a bender convenient operation, it is high to the position precision of bending of work piece, and then the shaping precision that makes the work piece is high.

Drawings

FIG. 1 is a schematic view of a workpiece without a locating edge;

fig. 2 is a schematic structural diagram of a bending machine according to an embodiment of the present invention;

fig. 3 is a schematic view illustrating a bending machine according to an embodiment of the present invention bending a workpiece;

fig. 4 is an enlarged view of a in fig. 3.

In the figure:

100-a workpiece; 101-alignment groove;

1-a frame body; 11-a fixed part; 12-a movable part;

21-a female die; 22-a male die;

3-a laser emitter; 31-laser plane;

4-an adsorption component;

5-a host module;

61-a first actuator; 62-a second actuator; 63-a cover body;

7-a bit alignment block; 71-a body portion; 72-thimble portion.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures associated with the present invention are shown in the drawings, not all of them.

In the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected", "connected" and "fixed" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element 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. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to be limiting.

The embodiment provides a bending machine which is used for bending metal plates and is particularly suitable for bending workpieces 100 without positioning edges. In this embodiment, a bending machine is used for bending a workpiece 100 without a positioning edge shown in fig. 1 as an example, a dotted line in fig. 1 represents a line to be bent, alignment grooves 101 are respectively formed at two ends of the line to be bent, and the alignment grooves 101 are V-shaped.

As shown in fig. 2, the X direction in the drawing indicates a first direction, the Y direction indicates a second direction, the Z direction indicates a third direction, the first direction and the second direction are both horizontal directions, the third direction is vertical, and the first direction, the second direction and the third direction are perpendicular to each other. Preferably, as shown in fig. 2 and 3, the bending machine comprises a frame body 1, a female die 21, a male die 22, a laser emitter 3 and a suction assembly 4. Specifically, the frame body 1 comprises a fixed part 11 and a movable part 12, wherein the fixed part 11 is used for supporting on the ground, and the movable part 12 is arranged above the fixed part 11 and can slide relative to the fixed part 11 along the Z direction. The female die 21 is arranged on the fixing portion 11, the male die 22 is arranged on the movable portion 12, the female die 21 and the male die 22 are arranged in parallel and oppositely, and the center line of the male die 22 in the second direction is aligned with the center line of the female die 21 in the second direction up and down, so that the bending accuracy of the workpiece 100 is guaranteed. The workpiece 100 can extend into the space between the female die 21 and the male die 22 along the second direction, and the movable portion 12 can drive the male die 22 to be close to the female die 21, so that the male die 22 can press and bend the workpiece 100. The laser emitter 3 is arranged on the frame body 1, the light emitted by the laser emitter 3 can mark the central line of the female die 21 along the second direction, the adsorption component 4 is arranged on the frame body 1, the adsorption component 4 can adsorb and fix the workpiece 100, and the workpiece 100 is loosened after the pressure applied to the workpiece 100 by the male die 22 is greater than the preset pressure.

When the bending machine of the embodiment is used, firstly, the workpiece 100 is inserted between the female die 21 and the male die 22 along the second direction, the specific position of the center line of the female die 21 along the second direction can be visually seen by referring to the marked light emitted by the laser generator, and then the alignment grooves 101 at the two ends of the to-be-bent line of the workpiece 100 can be conveniently and accurately aligned with the center line of the female die 21 along the second direction, so that the precision of the subsequent bending position of the workpiece 100 is ensured; the aligned workpiece 100 can be adsorbed and fixed through the adsorption component 4, so that the workpiece 100 is prevented from shifting in the initial bending stage, manual support of the workpiece 100 is not needed, and the operation is more convenient; finally, in the process that the punch 22 is close to the die 21 to bend the workpiece 100, when the pressure applied to the workpiece 100 by the punch 22 is greater than the preset pressure, the adsorption component 4 timely releases the workpiece 100, so that the workpiece 100 can be smoothly bent. The bending machine of the embodiment is convenient to operate, and has high precision of bending positions of the workpiece 100, so that the forming precision of the workpiece 100 is high.

Specifically, the driving structure for driving the movable portion 12 to move in the Z direction and press the bending workpiece 100 may be any one of the driving structures in the prior art, and will not be described herein again. Preferably, the bending machine further comprises a second actuator 62, and when the workpiece 100 is aligned, the second actuator 62 is triggered to bring the punch 22 close to the die 21 and press-bend the workpiece 100. Alternatively, in this embodiment, the second actuator 62 may be a pedal, and the operator may press the pedal to move the movable portion 12 to bring the punch 22 close to the die 21, and release the pedal to move the punch 22 away from the die 21.

Preferably, as shown in fig. 3 and 4, the laser emitter 3 is disposed at one end of the die 21 in the first direction, and the laser emitter 3 is capable of emitting a laser plane 31, the laser plane 31 being perpendicular to the second direction and passing through a center line of the die 21 in the second direction. Since the marking light emitted from the laser emitter 3 is a plane, the marking light can be directly displayed on the upper surface of the workpiece 100, so that the process of aligning the alignment groove 101 of the workpiece 100 with the marking light (i.e., the center line of the female die 21 in the second direction) is more intuitive and convenient. It should be noted that the laser emitter 3 capable of emitting the laser plane 31 may be any one of the prior art, and is not limited in detail herein.

It should be noted that, in order to avoid that the adsorption of the adsorption component 4 affects the normal bending deformation of the workpiece 100, the preset pressure should be set to be not greater than the pressure when the workpiece 100 is plastically deformed, and specifically, the pressure value received when the workpiece 100 is plastically deformed may be calculated according to the yield strength of the material corresponding to the workpiece and the cross-sectional area of the workpiece. That is, the values of the preset pressures need to be set correspondingly for different kinds of workpieces 100.

Preferably, as shown in fig. 2 and 3, the bending machine further includes a host module 5 and a pressure sensor, the pressure sensor and the suction assembly 4 are both electrically connected to the host module 5, the pressure sensor is used for detecting the pressure of the punch 22 on the workpiece 100, and the host module 5 can receive the detection result of the pressure sensor and enable the suction assembly 4 to release the workpiece 100 when the detection result reaches a preset pressure. Before the workpiece 100 is bent, an operator inputs the calculated preset pressure into the host module 5 according to the specific situation of the workpiece, so as to ensure that the adsorption assembly 4 can release the workpiece 100 at a proper time. The specific type of pressure sensor and its principle of detecting the pressure exerted by the punch 22 on the workpiece 100 are known in the art and will not be described in detail herein.

Preferably, in this embodiment, the adsorption component 4 includes an electromagnet, the electromagnet can adsorb and fix the workpiece 100 after being powered on, when the host module 5 receives the detection result of the pressure sensor and reaches the preset pressure, the electromagnet is powered off to release the workpiece 100, the way of adsorbing and fixing the workpiece 100 by the electromagnet is reliable, and the reaction is rapid when the workpiece 100 is released. Further, bending machine still includes first starting member 61, after the operating personnel counterpoints the position of work piece 100 accurate, triggers first starting member 61 and enables the electro-magnet and become electric to adsorb fixed work piece 100. In the process of aligning the workpiece 100, it is necessary to hold the workpiece 100 by the operator, and preferably, the first actuating member 61 is a pedal in this embodiment, and it is more convenient for the operator to pedal to trigger the first actuating member 61. Preferably, the bending machine in this embodiment further includes a cover 63, and the first actuating member 61 and the second actuating member 62 are both disposed in the cover 63, and the cover 63 can prevent the pedal from being stepped on by mistake.

Of course, the solution where the attraction component 4 is an electromagnet requires that the workpiece 100 itself be a ferromagnetic material. To achieve the attraction of the work piece 100 of non-ferromagnetic material, the attraction assembly 4 may be rotatably arranged as a vacuum chuck.

Preferably, as shown in fig. 2, the electromagnet is disposed at one side of the female die 21 in the second direction, and an upper surface of the electromagnet is flush with an upper surface of the female die 21. The electromagnet can support the workpiece 100, so that the plane of the workpiece 100 is parallel to the X-Y plane, and the shape accuracy of the bent workpiece 100 is higher. In this embodiment, the bending machine includes an electromagnet, and the electromagnet is disposed on the fixing portion 11 and is located on the front side of the female die 21 (i.e., the side of the female die 21 close to the operator), in other embodiments, the bending machine may include a plurality of electromagnets, the plurality of electromagnets can synchronously adsorb the workpiece 100 and synchronously loosen the workpiece 100, and the position distribution of the plurality of electromagnets on the fixing portion 11 may be flexibly set without limitation.

Preferably, as shown in fig. 3 and 4, the bending machine further includes two alignment blocks 7, and the alignment blocks 7 can move relative to the female die 21 along the length direction of the female die 21, so that the two alignment blocks 7 are respectively clamped in the alignment grooves 101 at two ends of the workpiece 100 to be bent. That is, the workpiece 100 is aligned by a mechanical structure, so that the alignment accuracy of the workpiece 100 can be further improved, the final bending position accuracy of the workpiece 100 can be ensured, and the sliding arrangement of the alignment block 7 can be applied to bending of workpieces 100 of different sizes by the bending machine.

Specifically, in this embodiment, as shown in fig. 4, the aligning block 7 includes a body portion 71 and an ejector pin portion 72, a U-shaped groove is provided on the body portion 71, the U-shaped groove is clamped on the die 21 and can slide along the die 21, the ejector pin portion 72 is connected to the body portion 71, the ejector pin portion 72 and the die 21 are aligned up and down along a central line of the second direction, and the ejector pin portion 72 is used for abutting against the bottom of the aligning groove 101. The bottom of the alignment groove 101 is the deepest position of the alignment groove 101 in the depth direction. After the operator aligns the workpiece 100 with reference to the laser plane 31, the operator pushes the two aligning blocks 7 to slide along the first direction, and the ejector pin portions 72 of the two aligning blocks 7 respectively abut against the bottoms of the two aligning grooves 101, so that the accuracy of aligning the workpiece 100 can be further ensured.

In summary, the steps of performing the bending operation on the workpiece 100 by using the bending machine of the present embodiment include:

step 1, extending a workpiece 100 into a space between a female die 21 and a male die 22 along a second direction;

step 2, adjusting the position of the workpiece 100 to align the bottom positions of the two alignment grooves 101 on the workpiece 100 with the laser plane 31 emitted by the laser emitter 3, so as to realize the initial alignment of the workpiece 100;

step 3, pushing the two aligning blocks 7 to respectively approach to two ends of the workpiece 100 from the first direction, and enabling the thimble parts 72 of the two aligning blocks 7 to respectively abut against the bottom of the aligning groove 101, so as to realize accurate alignment of the workpiece 100;

step 4, stepping on the pedal of the first starting piece 61 to enable the electromagnet to adsorb and fix the workpiece 100;

step 5, pushing the two aligning blocks 7 to respectively get away from the workpiece 100 along the first direction;

and 6, stepping on the pedal of the second starting piece 62 to enable the movable part 12 to drive the male die 22 to be close to the female die 21 and bend the workpiece 100.

It can be understood that the step of providing the alignment block 7 to mechanically align the workpiece 100 improves the alignment accuracy, but also affects the efficiency of sheet metal bending. Therefore, in the actual operation process, the operation steps can be flexibly selected according to actual needs: when the precision requirement on the bent workpiece 100 is very high, the steps can be sequentially operated; when the accuracy requirement for bending the workpiece 100 is relatively low, steps 3 and 5 may be skipped, thereby improving the bending efficiency.

Obviously, the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and for those skilled in the art, there may be variations on the specific embodiments and the application range according to the ideas of the present invention, and the contents of the present specification should not be construed as limitations to the present invention. Any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. A bending machine, characterized in that it comprises:

a frame body (1);

the female die (21) and the male die (22) are arranged on the frame body (1) and extend along a first direction, a workpiece (100) can extend into a space between the female die (21) and the male die (22) along a second direction, the male die (22) can be close to the female die (21) to extrude and bend the workpiece (100), and the second direction is perpendicular to the first direction;

the laser emitter (3) is arranged on the frame body (1), and light rays emitted by the laser emitter (3) can mark the central line of the female die (21) along the second direction;

and the adsorption component (4) is arranged on the frame body (1), the adsorption component (4) can adsorb and fix the workpiece (100), and the convex die (22) is used for loosening the workpiece (100) after the pressure applied to the workpiece (100) is greater than preset pressure.

2. Machine according to claim 1, wherein said laser emitter (3) is arranged at one end of said female die (21) along said first direction, said laser emitter (3) being able to emit a laser plane (31), said laser plane (31) being perpendicular to said second direction and passing through a median line of said female die (21) along said second direction.

3. The bending machine according to claim 1, further comprising a main machine module (5) and a pressure sensor, wherein the pressure sensor and the suction assembly (4) are electrically connected with the main machine module (5), the pressure sensor is used for detecting the pressure of the punch (22) on the workpiece (100), and the main machine module (5) can receive the detection result of the pressure sensor and enable the suction assembly (4) to release the workpiece (100) when the detection result reaches a preset pressure.

4. The bending machine according to claim 3, wherein the adsorption component (4) comprises an electromagnet, the electromagnet can adsorb and fix the workpiece (100) after being electrified, and the main machine module (5) enables the electromagnet to be deenergized to release the workpiece (100) when the detection result of the pressure sensor reaches a preset pressure.

5. Machine according to claim 4, wherein said machine further comprises a first actuator (61), the activation of said first actuator (61) enabling the energization of said electromagnet.

6. Machine according to claim 5, wherein said first actuator (61) is a pedal.

7. The machine according to claim 4, wherein said electromagnet is arranged on one side of said female die (21) in said second direction, and the upper surface of said electromagnet is flush with the upper surface of said female die (21).

8. The bending machine according to any one of claims 1 to 7, further comprising two aligning blocks (7), wherein the aligning blocks (7) can move relative to the female die (21) along the length direction of the female die (21), and the two aligning blocks (7) can be respectively clamped in aligning grooves (101) at two ends of the workpiece (100) to be bent.

9. Machine according to claim 8, wherein said alignment block (7) comprises:

the body part (71) comprises a U-shaped groove, and the U-shaped groove is clamped on the female die (21) and can slide along the female die (21);

the thimble portion (72) is connected with the body portion (71), the thimble portion (72) and the concave die (21) are aligned up and down along the central line of the second direction, and the thimble portion (72) is used for abutting against the bottom of the alignment groove (101).

10. Machine according to any one of claims 1 to 7, wherein it further comprises a second actuator (62), the actuation of said second actuator (62) enabling the punch (22) to approach the matrix (21) and to press bend the workpiece (100).

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