A clamping device for vertically installing a bending upper die

Abstract

The utility model discloses a clamping device for vertically installing a bending upper die, including an upper die seat, and also including: a crimping piece, which is used to fix the upper die body on the upper die seat, and constrain the upper die body in a non-fixed state from falling under the action of gravity; a pressure plate, which is used to drive the crimping piece to fix the upper die body, and the pressure plate is provided with a constraint structure, which is used to constrain the movement trajectory of the crimping piece, and the crimping piece moves vertically and horizontally synchronously relative to the pressure plate; a driving piece, the driving piece and the crimping piece are respectively located on both sides of the upper die seat, and the driving piece is used to drive the pressure plate to approach or move away from the upper die seat. A vertical clamping structure is provided, in which the driving piece and the pressure plate are located on both sides of the upper die seat, and the front and rear structural layout on the upper die seat is optimized, so that the space can be better utilized, making the entire clamp system more compact, and at the same time providing a larger operating space, which is convenient for the installation, adjustment and replacement of the mold. This layout makes operation and maintenance more convenient and improves work efficiency.

Description

Technical Field

[0001] The utility model relates to a bending upper die clamping technology, in particular to a clamping device for vertically installing a bending upper die. Background Art

[0002] The clamping device of the upper die of the bending machine is widely used in various types of bending machines. It is a connecting device between the bending machine and the bending die. It is installed on the bending machine to clamp the bending upper die. The bending upper die is installed between the connecting plate and the upper die connecting plate. Usually, there are a certain number of clamping devices on each bending machine. Each clamping device is fastened by screws. In this way, when installing or replacing the upper die, dozens of screws need to be loosened and tightened, which is time-consuming and labor-intensive and requires a special wrench, which is very inconvenient. In addition, by loosening and tightening the screws and clamping the bending upper die with the connecting plate and the pressure plate, the clamping force of the pressure plate will be uneven, which will cause the center of the bending upper die to be inconsistent and affect the quality of the bent product.

[0003] After searching the existing CN102626753A, a clamping device for the upper die of a bending machine is disclosed, which includes a clamping body connected to the bending machine at the upper part and the upper die of the bending die at the lower part. A clamping block for clamping the upper die of the bending die is provided inside the clamping body, the lower end of the clamping block is elastically connected to the clamping body through a spring pin, and the upper end of the clamping block is connected to a hydraulic pipeline system for providing clamping power.

[0004] The above patented technology, at the beginning of work, the ejector pin placed in the clamping block pre-presses the hook groove of the bending upper die to prevent the upper die from falling off. Turn on the external hydraulic pump, the hydraulic oil enters the pressure hose through the oil inlet valve, the oil inlet hole of the rear left end cover plate, and the middle through hole of the oil pipe clamping wedge block. The pressure hose is instantly pressurized and expanded, the pressure oil pipe squeezes the clamping block, and the clamping block instantly clamps the bending upper die. The bending upper die is clamped quickly and automatically. Conversely, the external hydraulic pump releases pressure, the reset spring placed in the clamping block pushes the clamping block, the clamping block squeezes the pressure hose, the hydraulic oil in the pressure oil pipe squeezes out the pressure hose to restore the flat state, and the clamping block and the bending upper die are released.

[0005] Although this technology introduces the use of a spring ejector pin to pre-press the upper die hook slot to prevent the tool from falling off, it is not applicable to some scenarios where the lateral installation and disassembly space is limited. At the same time, the entire device is located on one side of the clamp, which causes uneven force on the die and poor stability. Summary of the invention

[0006] The technical problems to be solved by the utility model are:

[0007] The existing upper mold clamping mechanism cannot be quickly disassembled and assembled in the scenario of limited space for horizontal assembly and disassembly. At the same time, the entire device is located on one side of the clamp body, resulting in uneven force on the mold and poor stability.

[0008] In order to solve the above technical problems, the inventors have obtained the technical solution of the utility model through practice and summary. The utility model adopts the following technical solution:

[0009] A clamping device for vertically installing a bending upper die comprises an upper die seat 3 and further comprises:

[0010] The crimping piece 1 is used to fix the upper mold body 5 on the upper mold base 3, and to constrain the upper mold body 5 in a non-fixed state from falling under the action of gravity. The upper mold body 5 can be selectively separated from the crimping piece 1;

[0011] A pressure plate 2, the pressure plate 2 is used to drive the crimping member 1 to loosen or tighten the upper mold body 5;

[0012] A driving member is used to drive the pressure plate 2 to move closer to or away from the upper die seat 3.

[0013] Preferably, a constraint structure 22 is provided on the pressure plate 2, and the constraint structure 22 is used to constrain the movement trajectory of the crimping member 1. The constraint structure 22 is located at the bottom of one side of the pressure plate 2 close to the pressure plate 2 and is arranged obliquely upward;

[0014] A limiting plate 21 is installed on the pressure plate 2 , and the limiting plate 21 is used to limit the crimping component 1 in the restraining structure 22 .

[0015] Preferably, a guide body 11 is disposed on the upper side of the crimping member 1 , a guide groove 211 parallel to the setting of the constraint structure 22 is disposed on the limiting plate 21 , and the guide body 11 is slidably installed in the guide groove 211 .

[0016] Preferably, an inclined restraining structure 22 is provided on the pressure plate 2, and a plurality of continuously arranged step structures 221 are provided at the bottom of the restraining structure 22, with an inclination angle of 10-89°.

[0017] Preferably, the restraining structure 22 includes an inclined groove 222 at the bottom and a horizontal groove 223 at the top, the step structure 221 is arranged on the lower side wall of the inclined groove 222, and the horizontal groove 223 includes a horizontal groove 1 2231 at the front side and a horizontal groove 2 2232 at the rear side;

[0018] The crimping part 1 includes a crimping body 12 located at the bottom and a moving body 13 located at the top. The crimping body 12 is adapted to be installed in the inclined groove 222. The moving body 13 is movably installed in the horizontal groove 223 and the part located in the horizontal groove 2231 is provided with a downwardly extending limit platform 131.

[0019] Preferably, a hook surface and a restraining surface are provided on the side of the crimping part 1 facing the upper die seat 3 , the hook surface is used to hook the notch on the side of the upper die body 5 , and the restraining surface is used to fix the upper die body 5 on the upper die seat 3 by surface pressure.

[0020] Preferably, a constraint body 1 is provided on the crimping part 1 , and the constraint body 1 is located on the top of the upper mold body 5 .

[0021] Preferably, the driving member and the pressure plate 2 are located on both sides of the upper die base 3, the driving member is installed on the rear side of the upper die base 3, and the crimping member 1 is installed on the front side of the upper die base 3, and the movable end of the driving member penetrates the upper die base 3 and drives the pressure plate 2 to selectively approach or move away from the upper die base 3.

[0022] Preferably, the driving member is a pneumatic cylinder, a hydraulic cylinder or a servo electric cylinder.

[0023] Compared with the prior art, the utility model has the following beneficial effects:

[0024] The solution of the utility model utilizes a driving member to drive the pressure plate to approach or move away from the upper die seat, thereby driving the crimping member to tighten the upper die seat, and after the upper die body and the upper die seat are loosened, the upper die body and the crimping member return to their initial state and do not separate actively, and the upper die body and the crimping member are actively separated by the operator, thereby realizing vertical rapid installation.

[0025] The utility model adopts a drive member and a pressure plate located on both sides of the upper die seat, optimizing the front and rear structural layout on the upper die seat, which can better utilize the space and make the entire clamp system more compact. At the same time, it provides a larger operating space to facilitate the installation, adjustment and replacement of the mold. This layout makes operation and maintenance more convenient and improves work efficiency. The drive member can be used as a universal part or standard part of the same type of clamping structure. In this way, when replacing the same type of clamping structure with different specifications, there is no need to replace the drive member on the rear side, reducing the workload. It can also share the clamping force more evenly to ensure that the upper mold is balanced during the clamping process. This balanced distribution reduces the deformation or displacement of the mold due to uneven force, thereby improving the stability and accuracy of the processing.

[0026] Secondly, the driving member drives the pressure plate to selectively approach or move away from the upper mold base. A constraint structure is arranged on the pressure plate to constrain the movement trajectory of the crimping member. The movement trajectory is a vertical and horizontal synchronous movement, that is, when the crimping member moves upward relative to the pressure plate, it approaches the pressure plate laterally at the same time, and when the crimping member moves downward relative to the pressure plate, it moves away from the pressure plate laterally at the same time. Secondly, the crimping member can hook the upper mold body to prevent it from falling off under the action of gravity after it moves away from the pressure plate.

[0027] The utility model sets multiple sets of continuous step structures on the constraint structure, and reduces the thickness and volume of the side clamping plate while ensuring the structural strength and basic requirements of the stroke of the crimping part. The guarantee of structural strength can ensure the large clamping force of the upper mold body, and the simplified structure volume realizes the lightweight of the device, reduces costs, and facilitates the disassembly and assembly of the device. Secondly, a downwardly extending limit platform is also set on the front side of the top of the crimping part, which not only improves the mounting strength but also constrains the crimping part at the lowest point to prevent it from falling off the pressure plate.

[0028] The clamping device using this solution has a compact structure, small size, low cost, is easy to use, and the installation accuracy can be effectively guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0030] Figure 2 This is a structural diagram of the overall structure of the utility model without the limit plate installed;

[0031] Figure 3 It is a structural schematic diagram of the pressure plate of the utility model;

[0032] Figure 4 It is a structural schematic diagram of the limiting plate of the utility model;

[0033] Figure 5 It is a structural schematic diagram of the crimping part of the utility model;

[0034] Figure 6 It is a structural diagram of the utility model when the structure is disassembled.

[0035] In the figure: 1. crimping part; 11. guide body; 12. crimping body; 13. moving body; 131. limit table; 14. constraint body; 2. pressure plate; 21. limit plate; 211. guide groove; 22. constraint structure; 221. step structure; 222. inclined groove; 223. horizontal groove; 2231. horizontal groove one; 2232. horizontal groove two; 3. upper die seat; 4. driving part; 5. upper die body. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0037] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0038] Embodiment 1, as Figure 1 As shown, a clamping device for vertically installing a bending upper die includes an upper die seat 3 and also includes:

[0039] The crimping piece 1 is used to fix the upper mold body 5 on the upper mold base 3, and to constrain the upper mold body 5 in a non-fixed state from falling under the action of gravity, and the upper mold body 5 can be selectively separated from the crimping piece 1 vertically;

[0040] A pressure plate 2, the pressure plate 2 is used to drive the crimping member 1 to loosen or tighten the upper mold body 5;

[0041] The driving member 4 and the pressure plate 2 are respectively located on two sides of the upper die base 3 . The driving member 4 is used to drive the pressure plate 2 to move closer to or away from the upper die base 3 .

[0042] The upper mold body 5 is vertically adapted to the crimping part 1, and the upper mold body 5 is constrained not to separate from the crimping part 1 under the action of gravity, and the pressure plate 2 is driven by the driving member 4 to approach or move away from the upper mold base 3, thereby realizing the action of tightening and loosening the upper mold body 5 of the crimping part 1. The crimping part 1 can move horizontally relative to the pressure plate 2, or can move vertically and horizontally synchronously, and the present application prefers vertically and horizontally synchronously.

[0043] Embodiment 2, based on the above embodiment, Figure 3 As shown, a constraint structure 22 is provided on the pressure plate 2, and the constraint structure 22 is used to constrain the movement trajectory of the crimping part 1. The constraint structure 22 is located at the bottom of one side of the pressure plate 2 close to the pressure plate 2 and is arranged obliquely upward.

[0044] The movement direction of the crimping part 1 is constrained by the constraining structure 22, that is, the crimping part 1 can move along a set trajectory.

[0045] In order to prevent the crimping member 1 from lateral displacement along the constraint structure 22, a limiting plate 21 is installed on the pressure plate 2, and the limiting plate 21 is used to limit the crimping member 1 in the constraint structure 22. The limiting plate 21 is used to seal the two ends inside the constraint structure 22.

[0046] Among them, Figure 4 and Figure 5 As shown, a guide body 11 is provided on the upper side of the crimping part 1, and a guide groove 211 parallel to the constraint structure 22 is provided on the limit plate 21, and the guide body 11 is slidably installed in the guide groove 211. The guide body 11 is used to slide linearly along the guide groove 211, the inclination angle of the guide groove 211 is 10-89°, preferably 45°, the inclination angle of the constraint structure 22 is 10-89°, preferably 45°, the vertical displacement amount and the horizontal displacement amount of the guide body 11 are equal, and the horizontal groove 211 is arranged obliquely upward from the bottom to the top in the direction away from the upper die seat 13.

[0047] The driving member 4 drives the pressure plate 2 to approach or move away from the upper die seat 3, thereby realizing the action of tightening or loosening the upper die body 5 of the crimping member 1. When the pressure plate 2 moves close to the upper die seat 3, the crimping member 1 will move upward relative to the pressure plate 2 and approach the pressure plate 2. When the pressure plate 2 moves away from the upper die seat 3, the crimping member 1 and the upper die body 5 move downward together (under the action of gravity), and move downward to the lowest point (after the initial position) to separate the two. To separate the two, the upper die body 5 can be moved upward a short distance, and the top can be deflected to the front side at a certain angle and pulled down to complete the separation.

[0048] Embodiment 3, based on the above embodiment, Figure 3 As shown, a plurality of continuously arranged step structures 221 are arranged at the bottom of the constraint structure 22, which are also arranged from bottom to top in a direction away from the upper mold base 3, so as to ensure the structural strength and reduce the thickness and volume of the side clamping plate while ensuring the stroke.

[0049] Embodiment 4, on the basis of the above embodiment, as Figure 3 As shown, the restraining structure 22 includes an inclined groove 222 at the bottom and a horizontal groove 223 at the top, a step structure 221 is arranged on the lower side wall of the inclined groove 222, and the horizontal groove 223 includes a horizontal groove 1 2231 at the front side and a horizontal groove 2232 at the rear side, the horizontal groove 1 2231;

[0050] like Figure 5 As shown, the crimping part 1 includes a crimping body 12 located at the bottom and a moving body 13 located at the top. The crimping body 12 is adapted to be installed in the inclined groove 222. The moving body 13 is movably installed in the horizontal groove 223 and a downwardly extending limit platform 131 is provided on the part located in the horizontal groove 2231. The low point position of the crimping part 1 can be constrained by the limit platform 131. The crimping body 12 moves along the inclined groove 222 under the action of gravity and the guide groove 211 during the movement.

[0051] Embodiment 5, based on the above embodiment, the side of the crimping part 1 facing the upper mold base 3 is provided with a hook surface and a restraining surface, the two forming an inner concave structure, the hook surface is used to hook the groove on the side of the upper mold body 5, and the restraining surface is used to fix the upper mold body 5 on the upper mold base 3 by surface pressure.

[0052] Embodiment 6, on the basis of the above embodiment, as Figure 5As shown, the crimping part 1 is provided with a constraint body 14, and the constraint body 14 is located at the top of the upper mold body 5. Through the constraint body 14, when the crimping part 1 and the upper mold body 5 are separated, the constraint body 14 will be acted on by the top of the upper mold body 5 to move upward together. Since the constraint structure 22 and the guide groove 211 constrain the crimping part 1, it will move horizontally relative to the upper mold body 5 at the same time. After the two are separated and continue to move upward for a short distance, the upper mold body 5 can be quickly pulled down to separate them. Or after the two are separated, the top of the upper mold body 5 can be deflected forward by a certain angle and then pulled down. Alternatively, after the two are moved obliquely upward to a certain height (the height condition that the notch of the upper mold body and the hook surface of the crimping body are completely separated is met), the upper mold body is moved close to the upper mold seat, and then the upper mold body is quickly pulled down to complete the disassembly operation.

[0053] Embodiment 7, based on the above embodiment, Figure 1 As shown, the driving member 4 is installed on the rear side of the upper die base 3, and the crimping member 1 is installed on the front side of the upper die base 3. The movable end of the driving member 4 penetrates the upper die base 3 and drives the pressure plate 2 to selectively approach or move away from the upper die base 3. The driving member 4 is a cylinder, a hydraulic cylinder or a servo electric cylinder.

[0054] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited to this. The replacement can be a replacement of part of the structure, device, method step, or a complete technical solution. After the crimping part fixes the upper mold body, the top rear side wall and the top rear upper surface of the upper mold body are pressed on the upper mold base. Equivalent replacement or change according to the technical solution of the utility model and its inventive concept should be included in the protection scope of the utility model.

Claims

1. A clamping device for vertically installing a bending upper die, comprising an upper die seat (3), characterized in that: Also includes: A crimping piece (1), the crimping piece (1) is used to fix the upper mold body (5) on the upper mold base (3), and to restrain the upper mold body (5) in a non-fixed state from falling under the action of gravity; A pressure plate (2), the pressure plate (2) is used to drive the crimping member (1) to loosen or tighten the upper mold body (5); The driving member (4) and the pressure plate (2) are located on both sides of the upper die seat (3). The driving member (4) is used to drive the pressure plate (2) to move closer to or away from the upper die seat (3).

2. A clamping device for vertically installing a bending upper die according to claim 1, characterized in that: The pressure plate (2) is provided with a constraint structure (22), which is used to constrain the movement trajectory of the crimping member (1), and the constraint structure (22) is located at the bottom of one side of the pressure plate (2) close to the pressure plate (2) and is arranged obliquely upward; A limiting plate (21) is installed on the pressure plate (2), and the limiting plate (21) is used to limit the crimping component (1) within the restraining structure (22).

3. A clamping device for vertically installing a bending upper die according to claim 2, characterized in that: The upper side of the crimping piece (1) is provided with a guide body (11), the limiting plate (21) is provided with a guide groove (211) arranged parallel to the constraint structure (22), and the guide body (11) is slidably installed in the guide groove (211).

4. A clamping device for vertically installing a bending upper die according to claim 1, characterized in that: The pressure plate (2) is provided with an inclined restraining structure (22), and a plurality of continuously arranged step structures (221) are provided at the bottom of the restraining structure (22), with an inclination angle of 10-89°.

5. A clamping device for vertically installing a bending upper die according to claim 4, characterized in that: The restraining structure (22) comprises an inclined groove (222) at the bottom and a horizontal groove (223) at the top, the step structure (221) is arranged on the lower side wall of the inclined groove (222), and the horizontal groove (223) comprises a horizontal groove 1 (2231) at the front side and a horizontal groove 2 (2232) at the rear side; The crimping piece (1) comprises a crimping body (12) located at the bottom and a movable body (13) located at the top. The crimping body (12) is adapted to be installed in the inclined groove (222). The movable body (13) is movably installed in the horizontal groove (223) and a portion located in the horizontal groove 1 (2231) is provided with a limit platform (131) extending downward.

6. A clamping device for vertically installing a bending upper die according to claim 5, characterized in that: The crimping piece (1) is provided with a hook surface and a restraining surface on the side facing the upper die seat (3); the hook surface is used to hook the notch on the side of the upper die body (5); and the restraining surface is used to fix the upper die body (5) on the upper die seat (3) by surface pressure.

7. A clamping device for vertically installing a bending upper die according to claim 1, characterized in that: The crimping piece (1) is provided with a restraining body (14), and the restraining body (14) is located on the top of the upper mold body (5).

8. The clamping device for vertically installing a bending upper die according to claim 1, characterized in that: The driving member (4) is installed on the rear side of the upper die base (3), and the crimping member (1) is installed on the front side of the upper die base (3). The movable end of the driving member (4) passes through the upper die base (3) and drives the pressure plate (2) to selectively approach or move away from the upper die base (3).

9. A clamping device for vertically installing a bending upper die according to claim 1, characterized in that: The driving member (4) is a cylinder, a hydraulic cylinder or a servo electric cylinder.

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