Die taking and placing device for heavy bending machine

Abstract

The utility model provides a die taking and placing device for a heavy bending machine, which belongs to the field of workpiece processing, and comprises a bending table component, and a bending component is mounted at the top end of the bending table component; the bending table assembly comprises a supporting table, the top end of the supporting table is rotationally connected with a pair of symmetrically-distributed bending dies, the outer sides of the bending dies are fixedly connected with a plurality of hinge joints which are arranged at equal intervals, workpieces can be buffered and popped out in the workpiece bending operation, rapid taking and placing are achieved, and the working efficiency is improved. The workpiece bending efficiency is improved, the bending die is supported through the reset springs, in the bending process, the reset springs can conduct buffering to a certain degree, the situation that the workpiece is damaged due to too large stress caused by hard contact is prevented, and after the bending operation is completed and the bending assembly leaves the bending die, the reset springs are released; and the bending die is driven to lift to eject the bent workpiece, and then the bent workpiece is manually taken and transferred.

Description

Technical Field

[0001] The utility model relates to the field of workpiece processing, in particular to a mold taking and placing device for a heavy-duty bending machine. Background Art

[0002] A bending machine is a machine that can bend thin plates. It is usually composed of a frame, a workbench, a slider, a mold, a hydraulic system and other parts. Its working principle is to drive the slider up and down through a hydraulic system or a mechanical transmission system, so that the mold installed on the workbench applies pressure to the thin plate, thereby bending the thin plate according to a predetermined angle and shape.

[0003] Chinese patent authorization application number: CN202322761989.5 provides a bending machine for base plate processing. This solution places the base plate in a placement groove on a placement plate, and the elasticity of the spring limits the base plate through the placement plate, which is conducive to placing base plates of different sizes to limit it. According to the required bending shape and angle, a suitable bending mold is selected and installed in the middle of the processing table, and a pressure strip adapted thereto is installed on the clamping tool, which helps to adjust the bending angle when bending the middle part of the base plate. By replacing the bending mold, no specific bending machine is required to bend it, thereby improving the convenience of bending the base plate. However, during the bending process, the workpiece is easily impacted and bumped, which is not conducive to the bending of the workpiece. After the bending is completed, the workpiece is embedded in the bending groove and is not easy to remove. It needs to be manually taken out using special tools, which is not conducive to the efficiency of the workpiece bending.

[0004] Therefore, it is necessary to provide a mold picking and placing device for a heavy-duty bending machine to solve the above technical problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a mold taking and placing device for a heavy-duty bending machine.

[0006] The utility model provides a mold picking and placing device for a heavy-duty bending machine, including a bending table assembly, a bending assembly is installed on the top of the bending table assembly; the bending table assembly includes a support table, the top of the support table is rotatably connected to a pair of symmetrically distributed bending molds, the outer side of the bending mold is fixedly connected to a plurality of hinged heads that are equidistantly arranged, the inner side of the hinged head is rotatably connected to a connecting head, the bottom end of the connecting head is fixedly connected to a reset spring, the bottom end of the reset spring is fixedly connected to a fixed plate, the fixed plate is located at the lower end of the front end of the support table, and the fixed plate is fixedly connected to the support table.

[0007] Preferably, the bending table assembly further includes a pair of left-right symmetrical baffles, which are located at the left and right ends of the support table.

[0008] Preferably, both left and right ends of the bending die are fixedly connected with a rotating shaft, and the rotating shaft is rotatably connected to the baffle.

[0009] Preferably, a plurality of slots adapted to the return spring are provided on both the front and rear sides of the support platform.

[0010] Preferably, grooves adapted to the fixing plate are provided on the front and rear sides of the support platform and at the bottom end of the slot.

[0011] Preferably, a bending groove adapted to the bending die is provided on the top of the support platform.

[0012] Preferably, the bending assembly includes a bracket, which is installed on the top of the baffle. A pair of left-right symmetrical hydraulic cylinders are fixedly connected to the inside of the bracket. In fact, the output end of the hydraulic cylinder is fixedly connected to a bending plate, and the bending plates are adapted to the bending groove and the bending mold.

[0013] Compared with the related art, the mold picking and placing device for heavy-duty bending machines provided by the present invention has the following beneficial effects:

[0014] 1. A mold picking and placing device for a heavy-duty press brake, which performs press bending on the workpiece through the cooperation of various parts in the press bending table assembly and the press bending assembly, wherein the press bending die is supported by a return spring. When the press bending assembly is performing press bending, the press bending die cooperates to perform press bending. At the same time, the return spring contracts under force. During the press bending process, the return spring can provide a certain degree of buffering to prevent the workpiece, the press bending die, and the press bending assembly from being in hard contact when the press bending assembly is performing press bending, thereby causing the workpiece to be subjected to excessive force and damaged. After the press bending operation is completed, the press bending assembly leaves the press bending die, and the return spring is released, driving the press bending die to lift the bent workpiece and eject it, which can then be manually picked up and transferred.

[0015] 2. A mold picking and placing device for a heavy-duty press brake uses a baffle to limit the space of the bending assembly and the bending mold to prevent the bending assembly and the bending mold from deviating when bending the workpiece, thereby affecting the bending accuracy of the workpiece. The baffle also supports the bending assembly, making the overall equipment structure compact enough and reducing the space occupied by the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the overall split structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the disassembled structure of the bending table assembly of the present invention;

[0019] Figure 4 This is a schematic diagram of the reset spring structure of the utility model;

[0020] Figure 5 For the utility model Figure 4 Enlarged structural diagram at point A in the middle.

[0021] Numbers in the figure: 1. Bending table assembly; 2. Bending assembly; 101. Support platform; 102. Baffle; 103. Rotating shaft; 104. Bending die; 105. Hinge joint; 107. Fixed plate; 108. Return spring; 109. Connector; 201. Bracket; 202. Hydraulic cylinder; 203. Bending plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figures 1 to 5 , an embodiment of the present invention provides a mold picking and placing device for a heavy-duty press brake, comprising a bending table assembly 1, a bending assembly 2 being installed on the top of the bending table assembly 1; the bending table assembly 1 comprises a support platform 101, a pair of symmetrically distributed bending molds 104 being rotatably connected to the top of the support platform 101, a plurality of hinged heads 105 being fixedly connected to the outer sides of the bending molds 104 and being equidistantly arranged, a connecting head 109 being rotatably connected to the inner sides of the hinged heads 105, a reset spring 108 being fixedly connected to the bottom end of the reset spring 108, a fixed plate 107 being fixedly connected to the bottom end of the reset spring 108, the fixed plate 107 being located at the lower end of the front end of the support platform 101, and the fixed plate 107 being fixedly connected to the support platform 101;

[0024] The press-bending die is supported by a reset spring. During the bending process, the reset spring can provide a certain degree of buffering to prevent the workpiece from being damaged due to excessive force caused by hard contact. After the bending operation is completed, the press-bending assembly leaves the press-bending die, and the reset spring is released, driving the press-bending die to lift the bent workpiece and eject it, which can then be manually picked up and transferred.

[0025] The bending table assembly 1 further includes a pair of left-right symmetrical baffles 102 , which are located at the left and right ends of the support table 101 .

[0026] The left and right ends of the bending die 104 are both fixedly connected with a rotating shaft 103 , and the rotating shaft 103 is rotatably connected to the baffle 102 .

[0027] A plurality of slots adapted to the return spring 108 are formed on both the front and rear sides of the support platform 101 .

[0028] Grooves adapted to the fixing plate 107 are provided on the front and rear sides of the support platform 101 and at the bottom end of the slot.

[0029] A bending groove adapted to the bending die 104 is provided at the top of the support platform 101 .

[0030] The bending assembly 2 includes a bracket 201, which is mounted on the top of the baffle 102. A pair of bilaterally symmetrical hydraulic cylinders 202 are fixedly connected to the inside of the bracket 201. In fact, the output ends of the hydraulic cylinders 202 are fixedly connected to bending plates 203. The bending plates 203 are adapted to the bending grooves and the bending mold 104.

[0031] The hydraulic cylinder 202 drives the bending plate 203 to press down. When the bending plate 203 contacts the workpiece and continues to press down, the bending die 104 cooperates to perform the bending action.

[0032] During operation, the workpiece to be bent is placed on the bending die 104, and the hydraulic cylinder 202 in the bending assembly 2 is started, so that its output end drives the bending plate 203 to press down. When the bending plate 203 contacts the workpiece and continues to press down, the bending die 104 cooperates to perform the bending action. At this time, the return spring 108 connected to the connecting head 109 is forced to shrink. During the bending process, the return spring 108 plays a certain buffering role to avoid hard contact between the workpiece, the bending die 104 and the bending assembly 2, which causes the workpiece to be damaged by excessive force. After the bending operation is completed, the bending plate 203 of the bending assembly 2 leaves the bending die 104, and the return spring 108 releases the elastic force, driving the bending die 104 to lift the bent workpiece and eject it, which is then picked up and transferred manually. During the entire working process, the baffle 102 limits the space between the bending assembly 2 and the bending die 104 to prevent the workpiece from shifting and deviating during the bending process, affecting the bending accuracy. At the same time, the baffle 102 supports the bending assembly 2, making the overall equipment structure compact and reducing the space occupied by the equipment.

[0033] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mold picking and placing device for a heavy-duty bending machine, characterized in that: It comprises a bending table assembly (1), wherein a bending assembly (2) is installed on the top end of the bending table assembly (1); The bending table assembly (1) includes a support table (101), the top end of the support table (101) is rotatably connected to a pair of symmetrically distributed bending molds (104), the outer side of the bending mold (104) is fixedly connected to a plurality of hinged heads (105) arranged at equal intervals, the inner side of the hinged head (105) is rotatably connected to a connecting head (109), the bottom end of the connecting head (109) is fixedly connected to a return spring (108), the bottom end of the return spring (108) is fixedly connected to a fixed plate (107), the fixed plate (107) is located at the lower end of the front end of the support table (101), and the fixed plate (107) is fixedly connected to the support table (101).

2. A mold taking and placing device for a heavy-duty bending machine according to claim 1, characterized in that: The bending platform assembly (1) further comprises a pair of left-right symmetrical baffles (102), wherein the baffles (102) are located at the left and right ends of the support platform (101).

3. The mold taking and placing device for a heavy-duty bending machine according to claim 1, characterized in that: The left and right ends of the bending die (104) are both fixedly connected with a rotating shaft (103), and the rotating shaft (103) is rotatably connected to the baffle (102).

4. The mold taking and placing device for a heavy-duty bending machine according to claim 2, characterized in that: The support platform (101) is provided with a plurality of slots on both the front and rear sides thereof, which are adapted to the return spring (108).

5. The mold taking and placing device for a heavy-duty bending machine according to claim 4, characterized in that: Grooves matching the fixing plate (107) are provided on the front and rear sides of the support platform (101) and at the bottom end of the slot.

6. The mold taking and placing device for a heavy-duty bending machine according to claim 5, characterized in that: The top of the support platform (101) is provided with a bending groove adapted to the bending die (104).

7. The mold taking and placing device for a heavy-duty bending machine according to claim 1, characterized in that: The bending assembly (2) comprises a bracket (201), the bracket (201) being mounted on the top end of the baffle (102), a pair of bilaterally symmetrical hydraulic cylinders (202) being fixedly connected to the interior of the bracket (201), and a bending plate (203) being fixedly connected to the output end of the hydraulic cylinder (202), and the bending plate (203) being compatible with the bending groove and the bending die (104).

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