Rapid clamping mechanism for upper die of bending machine

Abstract

The utility model provides a quick clamping mechanism for an upper die of a bending machine, which relates to the technical field of bending machines, and comprises an upper die, a mounting plate is arranged at the upper end of the upper die, a plurality of mounting holes are arranged on the mounting plate, a lug boss is arranged at the top of the upper die, and two spacing holes which are arranged at intervals are respectively arranged on two sides of the upper die. Limiting mechanisms are arranged at the two ends of the mounting plate correspondingly, the limiting mechanisms can move into the limiting holes and play a role in limiting the upper mold, and inserting grooves are formed in the two sides of the upper mold correspondingly. The limiting mechanism comprises a side support, two limiting rods arranged at intervals penetrate through the side support, the limiting rods can move into the limiting holes, a connecting plate is arranged on one side of the side support, the connecting plate is fixedly connected with the ends of the two limiting rods, a first rotating shaft is rotatably installed on the side support, and a first gear is fixedly installed on the first rotating shaft. A first rack is fixedly mounted on the connecting plate and meshed with the first gear, and a moving mechanism is arranged on the mounting plate.

Description

Technical Field

[0001] The utility model relates to the technical field of bending machines, in particular to a quick clamping mechanism for the upper die of a bending machine. Background Art

[0002] The upper die of a bending machine is one of the tools used by the bending machine to form and process sheet materials. It mainly changes the physical state of the forming material through the pressure of the bending machine to realize the shape change processing of material articles (mainly metal sheets), so as to make the material articles obtain the required shape.

[0003] The existing upper die quick clamping device for a bending machine with the publication number of CN218744438U specifically discloses an upper clamp, which is directly fixed on the upper slider of the bending machine through bolts. The upper clamp includes an upper clamp body, a handle, an upper die pressing plate, a button and a hook knife clip strip. This device combines the characteristics of a segmented upper clamp and an integral upper clamp, retains the functions of quick loading and vertical installation of the upper die, improves the efficiency of customers replacing the die; reduces the processing difficulty, improves the standardization degree of parts, and reduces the cost; inherits the continuous bearing structure of the integral upper clamp, so that the upper die and the upper slider are evenly stressed, and improves the durability of the upper clamp.

[0004] The existing clamping mechanism for the upper die of a bending machine cannot quickly fix the upper die during use. At the same time, most of the existing clamping mechanisms work through an electric drive clamping mechanism. The electric drive mechanism completely depends on the power supply. Once the power is interrupted or the voltage is unstable, the clamping mechanism will not be able to work properly, and may even cause unexpected shutdown during the processing or damage to the workpiece. On the other hand, the manufacturing cost of the electric drive is relatively high. For this reason, we propose a quick clamping mechanism for the upper die of a bending machine. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a quick clamping mechanism for the upper die of a bending machine, which solves the problems raised in the above background art.

[0006] To achieve the above purposes, the utility model is realized through the following technical solutions: A quick clamping mechanism for the upper die of a bending machine includes an upper die. An installation plate is arranged at the upper end of the upper die. A plurality of installation holes are arranged on the installation plate. A convex part is arranged at the top of the upper die. Two spaced limiting holes are respectively opened on both sides of the upper die. Limiting mechanisms are arranged at both ends of the installation plate. The limiting mechanisms can move into the limiting holes to limit the upper die. Slots are respectively opened on both sides of the upper die.

[0007] The limiting mechanism includes side brackets, and two spaced limiting rods penetrate through the side brackets. The limiting rods can move into the limiting holes. Connecting plates are arranged on one side of each side bracket, and the connecting plates are fixedly connected to the ends of the two limiting rods. A first rotating shaft is rotatably installed on the side bracket, a first gear is fixedly installed on the first rotating shaft, a first rack is fixedly installed on the connecting plate, and the first rack meshes with the first gear. A moving mechanism is arranged on the mounting plate, and the moving mechanism is connected to the limiting rods and can drive the limiting rods to move.

[0008] As a further technical solution of the present invention, the corners of the mounting plate are rounded.

[0009] As a further technical solution of the present invention, the moving mechanism includes two sets of symmetrically distributed moving components. The moving components are installed on the mounting plate. The moving component includes a first side bracket, and the first side bracket is fixedly installed on the mounting plate. An inclined block is arranged on one side of the first side bracket. The inclined block is arranged at the upper end of the protruding portion, and the inclined block can move into the slot. Two spaced guide rods are fixedly installed on the inclined block, the guide rods penetrate through the first side bracket, and circular plates are fixedly installed at the ends of the guide rods.

[0010] As a further technical solution of the present invention, the moving component further includes a second rack, the second rack is fixedly connected to the inclined block, a second rotating shaft is rotatably installed on the side bracket, a second gear is fixedly installed on the second rotating shaft, and the second gear meshes with the second rack.

[0011] As a further technical solution of the present invention, an elastic member is fixedly connected to the inclined block, and the other end of the elastic member is fixedly connected to the side bracket.

[0012] As a further technical solution of the present invention, a first bevel gear is fixedly installed at one end of the second rotating shaft, a second bevel gear is fixedly installed at one end of the first rotating shaft, and the first bevel gear and the second bevel gear on the same side mesh with each other.

[0013] The present invention provides a quick clamping mechanism for the upper die of a bending machine, which has the following beneficial effects compared with the prior art:

[0014] A quick clamping mechanism for the upper die of a bending machine in this design. During the installation process of the upper die, the convex part squeezes two inclined blocks, and the limiting rods at both ends move synchronously and away from each other until the limiting holes move to the positions of the limiting rods and the slots move to the positions of the inclined blocks. The elastic force of the elastic part drives the inclined blocks to insert into the slots, so as to limit and fix the upper die through the limiting rods at both ends. The clamping process of the upper die is fast and does not require redundant operation steps. The mechanical transmission realizes the clamping action through physical contact and force transmission, does not rely on electric power or electronic components, and performs better in terms of stability and reliability, ensuring the continuity and stability of production. Description of the Drawings

[0015] Figure 1 It is a schematic structural diagram of a quick clamping mechanism for the upper die of a bending machine;

[0016] Figure 2 It is an enlarged schematic diagram of a partial structure of a quick clamping mechanism for the upper die of a bending machine;

[0017] Figure 3 It is an enlarged schematic diagram of a partial structure at the side bracket of a quick clamping mechanism for the upper die of a bending machine;

[0018] Figure 4 It is an enlarged schematic diagram of a partial structure at the side bracket of a quick clamping mechanism for the upper die of a bending machine.

[0019] In the figure: upper die 1, mounting plate 2, convex part 3, limiting hole 4, first side bracket 5, limiting rod 6, connecting plate 7, first rotating shaft 8, first gear 9, first rack 10, side bracket 11, inclined block 12, guide rod 13, disc 14, second rack 15, second rotating shaft 16, second gear 17, elastic part 18, first bevel gear 19, second bevel gear 20, slot 21. Specific Embodiments

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0021] Please refer to Figures 1-4, the present utility model provides a technical solution for a quick clamping mechanism of an upper die of a bending machine: A quick clamping mechanism of an upper die of a bending machine includes an upper die 1. An installation plate 2 is arranged at the upper end of the upper die 1. A plurality of installation holes are arranged on the installation plate 2. A convex part 3 is arranged at the top of the upper die 1. Two spaced limiting holes 4 are respectively opened on both sides of the upper die 1. Limiting mechanisms are arranged at both ends of the installation plate 2. The limiting mechanisms can move into the limiting holes 4 to limit the upper die 1. Slots 21 are respectively opened on both sides of the upper die 1. The limiting mechanism includes a first side bracket 5. Two spaced limiting rods 6 penetrate through the first side bracket 5. The limiting rods 6 can move into the limiting holes 4. A connecting plate 7 is arranged on one side of each of the first side brackets 5. The connecting plate 7 is fixedly connected to the ends of the two limiting rods 6. A first rotating shaft 8 is rotatably installed on the first side bracket 5. A first gear 9 is fixedly installed on the first rotating shaft 8. A first rack 10 is fixedly installed on the connecting plate 7. The first rack 10 meshes with the first gear 9. A moving mechanism is arranged on the installation plate 2. The moving mechanism is connected to the limiting rods 6 and can drive the limiting rods 6 to move. The corners of the installation plate 2 are rounded.

[0022] Among them, as Figure 3 and Figure 4 shown, the moving mechanism includes two groups of symmetrically distributed moving components. The moving components are installed on the installation plate 2. The moving component includes a side bracket 11. The side bracket 11 is fixedly installed on the installation plate 2. An inclined block 12 is arranged on one side of the side bracket 11. The inclined block 12 is arranged at the upper end of the convex part 3. The inclined block 12 can move into the slot 21. Two spaced guide rods 13 are fixedly installed on the inclined block 12. The guide rods 13 penetrate through the side bracket 11. Disks 14 are fixedly installed at the ends of the guide rods 13. The moving component further includes a second rack 15. The second rack 15 is fixedly connected to the inclined block 12. A second rotating shaft 16 is rotatably installed on the side bracket 11. A second gear 17 is fixedly installed on the second rotating shaft 16. The second gear 17 meshes with the second rack 15. An elastic member 18 is fixedly connected to the inclined block 12. The other end of the elastic member 18 is fixedly connected to the side bracket 11. A first bevel gear 19 is fixedly installed at one end of the second rotating shaft 16. A second bevel gear 20 is fixedly installed at one end of the first rotating shaft 8. The first bevel gear 19 and the second bevel gear 20 on the same side mesh.

[0023] The working principle of the present utility model is:

[0024] Install the mounting plate 2 on the bending machine. When installing the upper die 1, the upper die 1 moves upward and squeezes two inclined blocks 12 through the convex part 3. The inclined blocks 12 are squeezed and move towards the side brackets 11, compressing the elastic member 18. The second rack 15 on the inclined blocks 12 moves and drives the second gear 17 to rotate. The second gear 17 and the second rotating shaft 16 rotate synchronously. The first bevel gear 19 at one end of the second rotating shaft 16 rotates and drives the second bevel gear 20 to rotate, enabling the first rotating shaft 8 and the first gear 9 to rotate synchronously. The first gear 9 drives the first rack 10 to move, causing the connecting plate 7 and the limit rods 6 thereon to rotate synchronously. The limit rods 6 at both ends move synchronously and move away from each other until the limit holes 4 move to the position of the limit rods 6;

[0025] Meanwhile, the slot 21 moves to the position of the inclined block 12, and the elastic force of the elastic member 18 drives the inclined block 12 to insert into the slot 21, thereby limiting and fixing the upper die 1 through the limit rods 6 at both ends. The clamping process of the upper die 1 is fast and does not require redundant operating steps. The mechanical transmission realizes the clamping action through physical contact and force transmission, and does not rely on electric power or electronic components. Since it does not involve electric power or complex electrical systems, the mechanical transmission method performs better in terms of stability and reliability. When the power is interrupted or the electrical system fails, the mechanical transmission clamping mechanism can still work normally, ensuring the continuity and stability of production.

[0026] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model. The structures, devices, and operation methods not specifically described and explained in the present utility model, unless otherwise specified and limited, are implemented according to the conventional means in the art.

Claims

1. A quick clamping mechanism for a mold on a bending machine, characterized in that: The upper mold (1) comprises an upper mold (1), a mounting plate (2) is arranged at the upper end of the upper mold (1), a plurality of mounting holes are arranged on the mounting plate (2), a protrusion (3) is arranged at the top of the upper mold (1), two spaced limiting holes (4) are arranged on both sides of the upper mold (1), limiting mechanisms are arranged at both ends of the mounting plate (2), the limiting mechanisms can move into the limiting holes (4) and play a limiting role on the upper mold (1), and slots (21) are arranged on both sides of the upper mold (1); The limiting mechanism comprises a side bracket (5), two limiting rods (6) arranged at intervals are passed through the side bracket (5), the limiting rods (6) can be moved into the limiting hole (4), a connecting plate (7) is provided on one side of the side bracket (5), the connecting plate (7) is fixedly connected to the ends of the two limiting rods (6), a first rotating shaft (8) is rotatably mounted on the side bracket (5), a first gear (9) is fixedly mounted on the first rotating shaft (8), a first rack (10) is fixedly mounted on the connecting plate (7), the first rack (10) is meshed with the first gear (9), and a moving mechanism is provided on the mounting plate (2), the moving mechanism is connected to the limiting rod (6) and can drive the limiting rod (6) to move.

2. A quick clamping mechanism for a mold on a bending machine according to claim 1, characterized in that: The upper corners of the mounting plate (2) are rounded.

3. A quick clamping mechanism for a mold on a bending machine according to claim 2, characterized in that: The moving mechanism comprises two groups of symmetrically distributed moving components, the moving components being mounted on the mounting plate (2), the moving components comprising a side bracket (11), the side bracket (11) being fixedly mounted on the mounting plate (2), a slanted block (12) being arranged on one side of the side bracket (11), the slanted block (12) being arranged at the upper end of the raised portion (3), the slanted block (12) being movable into a slot (21), two guide rods (13) being fixedly mounted on the slanted block (12) and being arranged at intervals, the guide rods (13) penetrating the side bracket (11), and round pieces (14) being fixedly mounted on the ends of the guide rods (13).

4. A quick clamping mechanism for a mold on a bending machine according to claim 3, characterized in that: The moving assembly further comprises a second rack (15), the second rack (15) being fixedly connected to the inclined block (12), a second rotating shaft (16) being rotatably mounted on the side bracket (11), a second gear (17) being fixedly mounted on the second rotating shaft (16), and the second gear (17) being meshed with the second rack (15).

5. The quick clamping mechanism for upper mold of a bending machine according to claim 4, characterized in that: An elastic member (18) is fixedly connected to the inclined block (12), and the other end of the elastic member (18) is fixedly connected to the side bracket (11).

6. A quick clamping mechanism for a mold on a bending machine according to claim 5, characterized in that: A first bevel gear (19) is fixedly mounted on one end of the second rotating shaft (16), and a second bevel gear (20) is fixedly mounted on one end of the first rotating shaft (8); the first bevel gear (19) and the second bevel gear (20) located on the same side are meshed.

Images