Bending press

Abstract

The utility model discloses a bending press, which relates to the technical field of plate bending, and mainly comprises a main body frame, a die assembly, a driving device and a position adjusting assembly, the die assembly comprises an upper die and a lower die, the upper die and the lower die are detachably arranged on the main body frame, the upper die and / or the lower die are / is connected with the driving device, and the position adjusting assembly is arranged on the main body frame. The driving device is used for closing the upper die and the lower die, the position adjusting assembly comprises a first adjusting mechanism and a second adjusting mechanism, and the first adjusting mechanism and the second adjusting mechanism are used for adjusting the positions of the upper die and the lower die correspondingly so that the upper die and the lower die can be oppositely arranged. According to the position adjusting assembly, the positions of the lower die and the upper die can be adjusted, the bending press can be suitable for various bending dies, and the application scene is wider.

Description

Technical Field

[0001] The utility model relates to the technical field of plate bending, in particular to a bending machine. Background Art

[0002] During the production or overhaul of aluminum alloy models of rail transit vehicles, small bending workpieces such as sealing plates and blocking plates are often required due to design changes or technical changes. The bending curvature is determined according to the on-site conditions. The existing die-stamping machines need to be equipped with corresponding molds to meet the conditions for producing bent workpieces. Moreover, the sizes and thicknesses of the bending molds used in the existing die-stamping machines are different. Once installed, the position can no longer be adjusted. Only one size of bending mold can be used. The applicable scene range is small and cannot meet the tense and complex production tasks on site. Patent CN205324412U discloses a semicircular plate bending machine, including: a frame, a bending mold I, a bending mold II and a bending mold III. The bending mold I is fixed at the upper end of the frame. The bending mold I is a rectangular parallelepiped. A bending mold II is provided at the lower end of the bending mold I. The bending mold II is fixed to the bending mold I through the bending mold III. The bending mold II has a specific positional relationship with the bending mold I. Once the bending mold II is installed on the bending mold I, the position cannot be adjusted. It can only be used for bending molds of one size, and the position cannot be adjusted after the installation is completed.

[0003] Therefore, it is urgent to provide a press brake to solve the above problems existing in the prior art. Utility Model Content

[0004] The purpose of the utility model is to provide a press brake to solve the problems existing in the above-mentioned prior art, so that the position where the press brake mold is installed can be conveniently adjusted, so that the press brake can be suitable for a variety of press brake molds and has a wider range of application scenarios.

[0005] To achieve the above purpose, the utility model provides the following solutions:

[0006] The utility model provides a bending machine, comprising:

[0007] Main frame;

[0008] A mold assembly, the mold assembly comprising an upper mold and a lower mold, the upper mold and the lower mold are detachably mounted on the main frame;

[0009] A driving device, the upper die and / or the lower die are connected to the driving device, and the driving device is used to close the upper die and the lower die;

[0010] A position adjustment component, the position adjustment component includes a first adjustment mechanism and a second adjustment mechanism, the first adjustment mechanism and the second adjustment mechanism are respectively used to adjust the positions of the upper mold and the lower mold so that the upper mold and the lower mold are relatively arranged.

[0011] Preferably, the main frame includes a base and a top cover, the top cover is located above the base, the upper mold is installed on the top cover, and the lower mold is installed on the base.

[0012] Preferably, the lower mold is connected to the driving device;

[0013] The bottom of the driving device is installed on the base, the top is connected with the first adjustment mechanism, and the lower mold is installed on the first adjustment mechanism.

[0014] Preferably, the first adjustment mechanism comprises a U-shaped limiting member and a top member, the U-shaped limiting member is used to accommodate the lower mold, and the top member is arranged on one side of the U-shaped limiting member to abut against the lower mold.

[0015] Preferably, the jacking member is an internal angle bolt, and a plurality of the jacking members are arranged side by side.

[0016] Preferably, the top cover and the base are connected via a guide rod.

[0017] Preferably, sleeves are fixedly provided at four corners of the first adjustment mechanism, and the sleeves are sleeved on the guide rod, and the guide rod can guide the first adjustment mechanism.

[0018] Preferably, a guide hole is provided on the top cover, and the guide hole can guide the adjustment of the upper mold; wherein the direction of the guide hole is parallel to the thickness direction of the upper mold.

[0019] Preferably, the second adjustment mechanism is a bolt, one end of which is fixedly connected to the upper mold, and the other end of which can pass through the guide hole and be connected to a fastening nut to fix the upper mold on the top cover.

[0020] Preferably, the bolt is an M16 bolt.

[0021] Compared with the prior art, the utility model has achieved the following technical effects:

[0022] The mold assembly of the utility model can be detachably installed on the main frame, and the upper mold or the lower mold of the mold assembly is connected to the driving device, and the driving device is used to make the upper mold and the lower mold close together. The first adjustment mechanism and the second adjustment mechanism are respectively used to adjust the positions of the upper mold and the lower mold so that the upper mold and the lower mold are relatively arranged. The position adjustment assembly makes it easy to adjust the position of the press bending mold, so that the press bending machine can be suitable for a variety of press bending molds, and the application scenarios are more extensive. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 This is a schematic diagram of the structure of a press brake in an embodiment of the utility model;

[0025] Figure 2 It is a front view of the driving device resetting before bending in the embodiment of the utility model;

[0026] Figure 3 This is an axonometric view of the reset of the driving device before bending in the embodiment of the utility model;

[0027] Figure 4 It is a front view of the press brake during bending in the embodiment of the utility model;

[0028] Figure 5 It is an axonometric view of the press brake during press bending in the embodiment of the utility model;

[0029] Figure 6 It is a front view of the driving device after bending in the embodiment of the utility model;

[0030] Figure 7 This is an axonometric diagram of the drive device resetting after bending in the embodiment of the utility model;

[0031] Figure 8 Schematic diagram of three different sized mold assemblies in an embodiment of the present invention.

[0032] In the figure: 1-bolt; 2-fastening nut; 3-guide hole; 4-top cover; 5-upper die; 6-lower die; 7-guide rod; 8-inner angle bolt; 9-U-shaped limiter; 10-sleeve; 11-driving device; 12-base. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] The purpose of the utility model is to provide a press brake to solve the problems existing in the above-mentioned prior art, so that the press brake mold can be installed on the position of the press brake for easy adjustment, so that the press brake can be suitable for a variety of press brake molds and has a wider range of application scenarios.

[0035] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0036] like Figure 1-Figure 8 As shown, the utility model provides a press brake, including a main frame, a mold assembly, a driving device 11 and a position adjustment assembly, the mold assembly includes an upper mold 5 and a lower mold 6, the upper mold 5 and the lower mold 6 are detachably mounted on the main frame, the upper mold 5 and / or the lower mold 6 are connected to the driving device 11, the driving device 11 is used to close the upper mold 5 and the lower mold 6, the position adjustment assembly includes a first adjustment mechanism and a second adjustment mechanism, the first adjustment mechanism and the second adjustment mechanism are respectively used to adjust the positions of the upper mold 5 and the lower mold 6 so that the upper mold 5 and the lower mold 6 are relatively arranged, the position adjustment assembly enables the positions of the lower mold 6 and the upper mold 5 to be adjusted, so that the press brake can be suitable for a variety of press brake molds, and the application scenarios are more extensive.

[0037] As a preferred embodiment, the lower mold 6 is connected to the driving device 11; wherein, the bottom of the driving device 11 is installed on the base 12 of the main frame, and the top is connected with a first adjustment mechanism, and the lower mold 6 is installed on the first adjustment mechanism. It should be noted that the connection between the lower mold 6 and the driving device 11 is only arranged for the sake of simple structure and convenient operation. The driving device 11 can also be connected to the upper mold 5 or both the upper mold 5 and the lower mold 6 are connected to the driving device 11, as long as it can drive the upper and lower molds to close. Moreover, when the driving device is preferably a mechanical jack, the first adjustment mechanism may not be connected to the top of the mechanical jack. When in use, it is sufficient to ensure that the push rod of the mechanical jack can touch the first adjustment mechanism. The driving device can also adopt a hydraulic jack, a cylinder, etc.

[0038] In this embodiment, the main frame includes a base 12 and a top cover 4, the top cover 4 and the base 12 are connected by a guide rod 7, four guide rods 7 are provided, the four corners of the top cover 4 are fixedly connected to one end of the guide rod 7, the four corners of the base 12 are fixedly connected to the other end of the guide rod 7, the top cover 4 is located above the base 12, and the upper mold 5 is installed on the top cover 4, and the lower mold 6 is installed on the base 12. It should be noted that the base is not necessary, and if conditions permit, the guide rod can be directly fixed to the ground.

[0039] In this embodiment, the first adjustment mechanism includes a U-shaped limit member 9 and a top position member. The U-shaped limit member 9 is used to accommodate the lower mold 6. The top position member is arranged on one side of the U-shaped limit member 9. This side of the U-shaped limit member 9 is provided with a threaded hole. The top position member is preferably an internal angle bolt 8. The internal angle bolt 8 passes through the threaded hole and can resist the lower mold 6. The width of the U-shaped limit member 9 is greater than the thickness of various lower molds 6, so that the U-shaped limit member 9 can accommodate various models of lower molds 6.

[0040] In this embodiment, the top positioning member is preferably an inner angle bolt 8, which has high safety and reliability, and is arranged in multiple pairs, preferably two. Two bolt holes distributed on the left and right are set on one side of the U-shaped limiting member 9, and the two inner angle bolts 8 pass through them respectively. The two bolt holes on the U-shaped limiting member 9 resist the lower mold 6 on the left and right to prevent the lower mold 6 from shifting. It should be noted that the top positioning member can also adopt an outer angle bolt or other bolt, as long as it can achieve resistance to the lower mold. It should also be noted that the cooperation between the inner angle bolt and the U-shaped limiting member can also be replaced with other types of cooperation. For example, a bolt hole is set at a specific position of the lower mold, and a bolt hole is also set at the corresponding position of the U-shaped limiting member 9. Then the bolts pass through the bolt holes of the U-shaped limiting member 9 and the bolt holes of the lower mold in turn, so as to fix the positions of the lower mold and the U-shaped limiting member.

[0041] In this embodiment, sleeves 10 are fixedly provided at the four corners of the first adjustment mechanism, and the sleeves 10 are sleeved on the guide rod 7. The guide rod 7 can guide the first adjustment mechanism. The first adjustment mechanism moves up and down along the guide rod 7 and then drives the lower mold 6 and the upper mold 5 to close the mold to perform press bending on the workpiece.

[0042] In this embodiment, a guide hole 3 is opened on the top cover 4, and the guide hole 3 can guide the adjustment of the upper mold 5; wherein, the direction of the guide hole 3 is parallel to the thickness direction of the upper mold 5, and the second adjustment mechanism includes a bolt 1, one end of the bolt 1 is fixedly connected to the upper mold 5, and the other end can pass through the guide hole 3 to be connected with the fastening nut 2, the diameter of the fastening nut 2 is greater than the width of the guide hole 3, and the fastening nuts 2 are preferably two, one is located above the top cover 4 and the other is located below the top cover 4, and the fastening nut located below the top cover 4 is in contact with the top surface of the upper mold 5, and when the two fastening nuts are in contact with the top cover 4 The upper mold 5 can be fixed on the top cover 4, and the bolt 1 is in the loosened state of the fastening nut 2, that is, when the fastening nut 2 located above the top cover 4 is screwed, the lower mold will move downward, and the fastening nut located below the top cover 4 no longer fits the top cover 4. The bolt 1 can move along the direction of the guide hole 3 and then drive the movement of the upper mold 5, so that the position of the upper mold 5 can be adjusted to a position that is just aligned with the lower mold 6 and can be closed. The bolt 1 is preferably an M16 bolt. It should be noted that the bolt model can also be other models, as long as it can match the size of the guide hole as much as possible and can meet the conditions of use.

[0043] It should also be noted that the mold in this embodiment is made of ordinary carbon steel material, and the mold can be processed and produced by gas cutting. It can be produced quickly and at a low cost. In addition, the gap between the upper mold and the lower mold takes into account the bending stroke range of the workpiece and conforms to the working stroke range of the drive device. The design of the mold fully considers the bending rebound deformation, and the workpiece can be bent into shape in one step.

[0044] The working process of the press brake in this embodiment is as follows:

[0045] (1) Install the lower die 6 on the first adjustment mechanism as needed, put the lower die 6 into the U-shaped stopper 9 and adjust the position appropriately, and screw the internal angle bolt 8 until the internal angle bolt 8 contacts and tightens the lower die 6.

[0046] (2) Install the upper mold 5, pass the bolt 1 through the guide hole 3 and adjust the position so that the upper mold 5 is aligned with the lower mold 6, and tighten the fastening nut 2 located above the top cover 4 to make it fit with the top cover 4, thereby fixing the upper mold 5 on the top cover 4. It should be noted that in order to enable the upper mold 5 and the lower mold 6 to be closed, steps (1) and (2) can be implemented multiple times until the position of the upper mold 5 corresponds to the position of the lower mold 6 and can be closed just right.

[0047] (3) The driving device 11 is reset, and the lower die 6 is lowered to the lowest point of the working stroke along with the driving device 11, and the workpiece blank is placed between the upper die 5 and the lower die 6.

[0048] (4) The driving device 11 is started, and the lower die 6 is pushed upward along the guide rod 7 by the driving device 11, so that the workpiece is squeezed between the upper die 5 and the lower die 6 and deformed.

[0049] (5) The driving device 11 is reset, and the lower die 6 falls along with the driving device 11 to complete the reset, and the workpiece rebounds and deforms, completing the processing.

[0050] The present invention uses specific examples to illustrate the principle and implementation of the present invention. The above examples are only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A press brake, characterized in that: include Main frame; A mold assembly, the mold assembly comprising an upper mold and a lower mold, the upper mold and the lower mold are detachably mounted on the main frame; A driving device, the upper die and / or the lower die are connected to the driving device, and the driving device is used to close the upper die and the lower die; A position adjustment component includes a first adjustment mechanism and a second adjustment mechanism, wherein the first adjustment mechanism and the second adjustment mechanism are respectively used to adjust the positions of the upper mold and the lower mold so that the upper mold and the lower mold are relatively arranged.

2. The press brake according to claim 1, characterized in that: The main frame comprises a base and a top cover, wherein the top cover is located above the base, the upper mold is installed on the top cover, and the lower mold is installed on the base.

3. The press brake according to claim 2, characterized in that: The lower mold is connected to the driving device; The bottom of the driving device is installed on the base, the top is connected with the first adjustment mechanism, and the lower mold is installed on the first adjustment mechanism.

4. The press brake according to claim 3, characterized in that: The first adjustment mechanism includes a U-shaped limiting member and a top member, wherein the U-shaped limiting member is used to accommodate the lower mold, and the top member is arranged on one side of the U-shaped limiting member to abut against the lower mold.

5. The press brake according to claim 4, characterized in that: The jacking member is an internal angle bolt, and a plurality of the jacking members are arranged side by side.

6. The press brake according to claim 4, characterized in that: The top cover and the base are connected via a guide rod.

7. The press brake according to claim 6, characterized in that: Sleeves are fixedly provided at the four corners of the first adjustment mechanism, and the sleeves are sleeved on the guide rod. The guide rod can guide the first adjustment mechanism.

8. The press brake according to claim 2, characterized in that: The top cover is provided with a guide hole, and the guide hole can guide the adjustment of the upper mold; wherein the direction of the guide hole is parallel to the thickness direction of the upper mold.

9. The press brake according to claim 8, characterized in that: The second adjustment mechanism is a bolt, one end of which is fixedly connected to the upper die, and the other end of which can pass through the guide hole and be connected to a fastening nut to fix the upper die on the top cover.

10. The press brake according to claim 9, characterized in that: The bolts are M16 bolts.

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