Quick die head replacing mechanism of bending machine

Abstract

The utility model provides a quick die head replacing mechanism of a bending machine, which relates to the technical field of quick die head replacing mechanisms of bending machines and comprises a support, a hydraulic rod fixedly connected to the upper top of the support, a pressing plate fixedly connected to one end of the hydraulic rod, a pressing die arranged at the bottom of the pressing plate, and a clamping frame fixedly connected to the surface of the support. A clamping frame is arranged in the support, a die head is arranged in the clamping frame, a supporting device is arranged on the surface of the support, a convenient-to-replace device is arranged on the surface of the clamping frame and comprises a clamping rod inserted into the side face of the clamping frame, the clamping rod is inserted into the die head, a circular groove is formed in the clamping frame, and a ball is rotationally connected into the circular groove. The surface of the clamping rod is sleeved with a first spring, the two ends of the first spring are fixedly connected with the side face of the clamping frame and the end, away from the clamping frame, of the clamping rod respectively, and the problem that the die head on the bending machine cannot be replaced rapidly is solved.

Description

Technical Field

[0001] This utility model relates to the technical field of quick die changing mechanism for bending machines, and in particular to a quick die changing mechanism for bending machines. Background Technology

[0002] A bending machine is a machine capable of bending thin plates. Its main structure includes a support frame, a worktable, and a clamping plate. The worktable is placed on the support frame and consists of a base and a pressure plate. The base is connected to the clamping plate via a hinge. The base comprises a housing, a coil, and a cover plate. The coil is placed in a recess within the housing, and the top of the recess is covered by the cover plate. During operation, the coil is energized by a wire, generating an attractive force on the pressure plate, thus clamping the thin plate between the pressure plate and the base. Because electromagnetic clamping is used, the pressure plate can be made to meet various workpiece requirements, and workpieces with side walls can be processed. Operation is also very simple.

[0003] The inventors discovered during daily use of bending machines that the die head of a typical bending machine is usually fixed to the surface of the bending machine with bolts and other parts. Since the die head is installed inside the bending machine, it is inconvenient to replace the die head, which makes it difficult to replace the die head quickly and thus causes problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a quick-change mechanism for the die head of a bending machine.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a quick-change mechanism for a bending machine die head, comprising a bracket, a hydraulic rod fixedly connected to the top of the bracket, a pressure plate fixedly connected to one end of the hydraulic rod, a pressure die provided at the bottom of the pressure plate, a retaining frame fixedly connected to the surface of the bracket, a die head provided inside the retaining frame, a support device provided on the surface of the bracket, and a convenient replacement device provided on the surface of the retaining frame, the convenient replacement device comprising a retaining rod inserted into the side of the retaining frame, the retaining rod being inserted into the interior of the die head.

[0006] The effects achieved by the above components are as follows: under the action of the clamping rod, the die head can be fixed inside the clamping frame, thereby achieving the function of fixation. When the bending machine is needed, the thin plate is placed on the top of the clamping frame, and the thin plate is bent under the action of the die head and the pressure die. With the function of the easy replacement device, the die head can be replaced. With the function of the support device, the wider thin plate will not tilt during bending, thereby achieving the function of bending.

[0007] Preferably, the card frame has a circular groove inside, and a ball bearing is rotatably connected inside the circular groove.

[0008] The effect achieved by the above components is that the mold head can slide easily under the action of the ball bearings, thereby facilitating replacement.

[0009] Preferably, a first spring is sleeved on the surface of the clamping rod, and the two ends of the first spring are fixedly connected to the side of the clamping frame and the end of the clamping rod away from the clamping frame.

[0010] The effect achieved by the above components is that, under the action of the first spring, the locking rod is inserted into the interior of the mold head in a self-locking manner, thereby achieving the function of fixation.

[0011] Preferably, a pad is fixedly connected to the inner wall of the card frame, and the pad is a rubber pad.

[0012] The aforementioned components achieve the following effects: The pad prevents the die head from directly contacting the inner wall of the frame, avoiding rigid contact. When the die head needs to be replaced, the locking rod is pulled out, allowing the old die head to be removed and the new die head inserted into the frame. The ball bearings facilitate sliding of the die head, thus enabling easy replacement. Once the die head is inserted to the other side of the frame, the pad prevents direct contact with the inner wall of the frame, again avoiding rigid contact. When the die head contacts the pad, the first spring causes the locking rod to self-lock, securing it and facilitating replacement.

[0013] Preferably, the support device includes a groove formed on the surface of the bracket, and a support rod is rotatably connected inside the groove.

[0014] The effect achieved by the above components is that, under the action of the support rod, the thin plate will not tilt when it is compressed.

[0015] Preferably, a rectangular plate is fixedly connected to the surface of the bracket, and a locking rod is inserted into the surface of the rectangular plate, with one end of the locking rod inserted into the interior of the support rod.

[0016] The effect achieved by the above components is that the support rod can be fixed under the action of the locking rod, thereby achieving the function of fixation.

[0017] Preferably, a second spring is sleeved on the surface of the locking rod, and the two ends of the second spring are fixedly connected to the side of the rectangular plate at the end of the locking rod away from the rectangular plate.

[0018] The effect achieved by the above components is that, under the action of the second spring, the locking rod is inserted into the interior of the support rod, thereby achieving a fixing effect.

[0019] Preferably, a sponge block is fixedly connected to the surface of the support rod.

[0020] The effect achieved by the above components is as follows: under the action of the sponge block, the thin plate will not directly contact the support rod, thus avoiding the effect of rigid contact. When it is necessary to support the thin plate, the support rod is taken out from the inside of the groove. Under the action of the second spring, the locking rod is inserted into the inside of the support rod, thereby achieving the effect of fixing. Under the action of the sponge block, the thin plate will not directly contact the support rod, thus avoiding the effect of rigid contact, thereby achieving the effect of support.

[0021] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0022] In this invention, a convenient replacement device is provided. When the die head needs to be replaced, the locking rod is pulled out, allowing the old die head to be removed and the new die head to be inserted into the inside of the frame. Under the action of the ball bearings, the die head can slide easily, thus achieving the function of convenient replacement. After the die head is inserted into the other side of the frame, the pad block prevents the die head from directly contacting the inner wall of the frame, avoiding rigid contact. When the die head contacts the pad block, the locking rod is self-locking and inserted into the inside of the die head under the action of the first spring, thus achieving the function of fixing and achieving the function of convenient replacement. This solves the problem that the die head on the bending machine cannot be replaced quickly. Attached Figure Description

[0023] Figure 1 A three-dimensional structural diagram of a quick die-changing mechanism for a bending machine is provided for this utility model.

[0024] Figure 2 A schematic diagram of a convenient replacement device for a quick die head replacement mechanism of a bending machine is provided for this utility model.

[0025] Figure 3 This utility model provides a partial schematic diagram of a convenient replacement device for a quick-change die head mechanism for a bending machine.

[0026] Figure 4 This utility model presents a schematic diagram of a support device for a quick die-changing mechanism of a bending machine.

[0027] Legend: 1. Bracket; 2. Easy replacement device; 21. Locking rod; 22. First spring; 23. Ball bearing; 24. Pad block; 3. Support device; 31. Groove; 32. Support rod; 33. Locking rod; 34. Second spring; 35. Sponge block; 4. Hydraulic rod; 5. Die head; 6. Locking frame; 7. Pressure plate. Detailed Implementation

[0028] Example 1, as Figure 1-4As shown, a quick-change mechanism for the die head 5 of a bending machine includes a support 1. A hydraulic rod 4 is fixedly connected to the top of the support 1, and a pressure plate 7 is fixedly connected to one end of the hydraulic rod 4. A pressure die is provided at the bottom of the pressure plate 7. A clamping frame 6 is fixedly connected to the surface of the support 1, and the die head 5 is provided inside the clamping frame 6. A support device 3 is provided on the surface of the support 1, and a convenient replacement device 2 is provided on the surface of the clamping frame 6. When the bending machine is needed, a thin plate is placed on the top of the clamping frame 6. Under the action of the die head 5 and the pressure die, the thin plate is bent. The convenient replacement device 2 allows the die head 5 to be replaced. Under the action of the support device 3, the wider thin plate will not tilt during bending, thereby achieving the bending effect.

[0029] Reference Figure 2-3 The easy-replacement device 2 includes a locking rod 21 inserted into the side of the frame 6. The locking rod 21 is inserted into the interior of the die head 5. Under the action of the locking rod 21, the die head 5 can be fixed inside the frame 6, thus achieving a fixing function. When a bending machine is needed, the thin plate is placed on the top of the frame 6. Under the action of the die head 5 and the pressure die, the thin plate is bent. Under the action of the easy-replacement device 2, the die head 5 can be replaced. Under the action of the support device 3, the wider thin plate will not tilt during bending, thus achieving the bending function. The interior of the frame 6 has a circular groove, and a ball bearing 23 is rotatably connected inside the circular groove. Under the action of the ball bearing 23, the die head 5 can slide easily, thus achieving the easy-replacement function. A first spring 22 is sleeved on the surface of the locking rod 21. The two ends of the first spring 22 are respectively fixedly connected to the side of the frame 6 and the end of the locking rod 21 away from the frame 6. Under the action of the first spring 22, the locking rod 21 is inserted into the mold head 5 in a self-locking manner, thereby achieving a fixing effect. The inner wall of the frame 6 is fixedly connected with a pad 24, which is a rubber pad. Under the action of the pad 24, the mold head 5 will not directly contact the inner wall of the frame 6, avoiding rigid contact. When the mold head 5 needs to be replaced, the locking rod 21 is pulled out, allowing the old mold head 5 to be removed, and the new mold head 5 is inserted into the frame 6. Under the action of the ball bearing 23, the mold head 5 can slide easily, thus facilitating replacement. When the mold head 5 is inserted to the other side of the frame 6, the pad 24 prevents the mold head 5 from directly contacting the inner wall of the frame 6, avoiding rigid contact. When the mold head 5 contacts the pad 24, the locking rod 21 is inserted into the mold head 5 in a self-locking manner under the action of the first spring 22, thereby achieving a fixing effect and facilitating replacement.

[0030] Reference Figure 4The support device 3 includes a groove 31 formed on the surface of the bracket 1. A support rod 32 is rotatably connected inside the groove 31. Under the action of the support rod 32, the thin plate will not tilt when it is compressed. A rectangular plate is fixedly connected to the surface of the bracket 1. A locking rod 33 is inserted into the surface of the rectangular plate. One end of the locking rod 33 is inserted into the interior of the support rod 32. Under the action of the locking rod 33, the support rod 32 can be fixed, thereby achieving the function of fixation. A second spring 34 is sleeved on the surface of the locking rod 33. The two ends of the second spring 34 are respectively fixedly connected to the side of the rectangular plate at the end of the locking rod 33 away from the rectangular plate. Under the action of spring 34, the locking rod 33 is inserted into the support rod 32, thereby achieving a fixing function. A sponge block 35 is fixedly connected to the surface of the support rod 32. Under the action of the sponge block 35, the thin plate will not directly contact the support rod 32, avoiding rigid contact. When it is necessary to support the thin plate, the support rod 32 is taken out from the inside of the groove 31. Under the action of the second spring 34, the locking rod 33 is inserted into the inside of the support rod 32, thereby achieving a fixing function. Under the action of the sponge block 35, the thin plate will not directly contact the support rod 32, avoiding rigid contact, thereby achieving a supporting function.

[0031] Working principle: When the quick-change mechanism of the die head 5 of the bending machine is needed, the thin plate is placed on the top of the clamping frame 6. Under the action of the die head 5 and the pressure die, the thin plate is bent. With the help of the easy-change device 2, the die head 5 can be changed. With the help of the support device 3, the wider thin plate will not tilt during bending, thus achieving the bending effect. When the die head 5 needs to be changed, the clamping rod 21 is pulled out, allowing the old die head 5 to be removed, and the new die head 5 is inserted into the inside of the clamping frame 6. With the help of the ball bearing 23, the die head 5 can slide easily, thus achieving the function of easy replacement. After the die head 5 is inserted to the other side of the clamping frame 6... Under the action of the pad 24, the die head 5 will not directly contact the inner wall of the frame 6, thus avoiding rigid contact. When the die head 5 contacts the pad 24, under the action of the first spring 22, the locking rod 21 is inserted into the interior of the die head 5 in a self-locking manner, thereby achieving the function of fixing and facilitating replacement. When it is necessary to support the thin plate, the support rod 32 is taken out from the interior of the groove 31. Under the action of the second spring 34, the locking rod 33 is inserted into the interior of the support rod 32, thereby achieving the function of fixing. Under the action of the sponge block 35, the thin plate will not directly contact the support rod 32, thus avoiding rigid contact and achieving the function of support.

Claims

1. A quick-change die head mechanism for a bending machine, comprising a bracket (1), a hydraulic rod (4) fixedly connected to the top of the bracket (1), a pressure plate (7) fixedly connected to one end of the hydraulic rod (4), a pressure die provided at the bottom of the pressure plate (7), a retaining frame (6) fixedly connected to the surface of the bracket (1), and a die head (5) provided inside the retaining frame (6), characterized in that: The support (1) is provided with a support device (3) on its surface, and the card frame (6) is provided with a convenient replacement device (2) on its surface. The convenient replacement device (2) includes a card rod (21) inserted into the side of the card frame (6) and the card rod (21) is inserted into the interior of the mold head (5).

2. The quick-change die head mechanism for a bending machine according to claim 1, characterized in that: The card frame (6) has a circular groove inside, and a ball bearing (23) is rotatably connected inside the circular groove.

3. The quick-change die head mechanism for a bending machine according to claim 2, characterized in that: A first spring (22) is sleeved on the surface of the lever (21), and the two ends of the first spring (22) are fixedly connected to the side of the frame (6) and the end of the lever (21) away from the frame (6).

4. The quick-change die head mechanism for a bending machine according to claim 3, characterized in that: The inner wall of the card frame (6) is fixedly connected with a pad (24), which is a rubber pad.

5. The quick-change die head mechanism for a bending machine according to claim 4, characterized in that: The support device (3) includes a groove (31) formed on the surface of the bracket (1), and a support rod (32) is rotatably connected inside the groove (31).

6. The quick-change die head mechanism for a bending machine according to claim 5, characterized in that: A rectangular plate is fixedly connected to the surface of the bracket (1), and a locking rod (33) is inserted into the surface of the rectangular plate. One end of the locking rod (33) is inserted into the interior of the support rod (32).

7. The quick-change die head mechanism for a bending machine according to claim 6, characterized in that: The surface of the locking rod (33) is fitted with a second spring (34), and the two ends of the second spring (34) are fixedly connected to the side of the rectangular plate at the end of the locking rod (33) away from the rectangular plate.

8. The quick-change die head mechanism for a bending machine according to claim 7, characterized in that: A sponge block (35) is fixedly connected to the surface of the support rod (32).

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