Automatic cutter locking device of flexible bending center

Abstract

The utility model relates to the technical field of sheet metal bending equipment, in particular to an automatic cutter locking device of a flexible bending center, which comprises an upper sliding plate and an upper bending die, a cutter path is fixed at the bottom of the upper sliding plate, the upper bending die is slidably connected onto the cutter path, and a limit groove is arranged on one side of the upper bending die; an air bag retainer is fixed to one side of the lower portion of the upper sliding plate and close to the limiting groove of the upper bending die, a knife pressing block is arranged at an opening of the air bag retainer, one side of the knife pressing block is matched with the limiting groove, the opposite side of the knife pressing block and the air bag retainer form a closed space, and an air bag is placed in the closed space. And the contraction and expansion of the air bag drive the upper bending die to be loosened and locked on the tool path. Compared with the prior art, the pneumatic control air pressure is consistent, the stress of the upper bending die is in a uniform distribution state, single locking is not needed, the consistency of a tool nose on the upper bending die is good, the precision of a product which can be bent is higher, the die changing efficiency is greatly improved, and the automation degree is high.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal bending equipment technology, specifically providing an automatic knife locking device for flexible bending centers. Background Technology

[0002] A flexible bending center is a device that can automatically bend thin plates. Before bending, the number of upper bending dies needs to be manually matched to accommodate different workpiece lengths. The straightness of the blade tips after multiple upper bending dies are locked is very important. Manual locking of the dies will cause the locking force of each pressure block to be inconsistent, resulting in the blade tips of the upper bending dies not being on the same straight line, which will affect the bending accuracy of the sheet metal.

[0003] Depending on the usage of the flexible bending center, when there are many types of products, the molds will need to be changed frequently when using the flexible bending center.

[0004] Currently, there are two types of manual clamping fixtures on the market: screw-locking and cam-structure clamping. Both types of fixtures require workers to manually loosen or tighten them, which is labor-intensive and increases the time required for mold changes. Summary of the Invention

[0005] This utility model addresses the shortcomings of the prior art by providing an automatic knife locking device for a flexible bending center that is rationally designed, simple in structure, and has high processing accuracy.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] An automatic knife locking device for a flexible bending center includes an upper slide plate and an upper bending die. A knife rail is fixed to the bottom of the upper slide plate, and the upper bending die is slidably connected to the knife rail. A limit groove is formed on one side of the upper bending die.

[0008] An airbag retainer is fixed on one side of the lower part of the upper slide plate and near the limiting groove of the upper bending die. A pressure block is provided at the opening of the airbag retainer. One side of the pressure block cooperates with the limiting groove, and the opposite side of the pressure block forms a closed space with the airbag retainer. An airbag is placed in the closed space. The contraction and expansion of the airbag causes the upper bending die to loosen and lock on the tool rail.

[0009] Furthermore, the bottom of the upper slide plate is provided with mounting holes, which cooperate with screws to fix the cutter rail to the bottom of the upper slide plate.

[0010] Furthermore, a pressure block is provided on one side of the cutter rail, which fixes the cutter rail to the bottom of the upper slide plate.

[0011] Furthermore, a groove is provided on one side of the tool rail, and the connection between the upper bending die and the tool rail is set as an L-shaped hook. The L-shaped hook engages with the groove, allowing the upper bending die to move along the groove on the tool rail.

[0012] Furthermore, the limiting groove is V-shaped, and the contact surface between the pressure block and the limiting groove is also V-shaped. The V-shaped limiting groove and the pressure block work together to drive the upper bending die to move upward or downward.

[0013] Furthermore, the pressure block is generally L-shaped or T-shaped.

[0014] Furthermore, a mounting hole is provided on one side of the lower part of the upper slide plate, and the mounting hole cooperates with a screw to fix the airbag retainer to the lower part of the upper slide plate.

[0015] Compared with the prior art, the automatic knife locking device for the flexible bending center of this utility model has the following outstanding advantages:

[0016] This utility model features pneumatic control for consistent air pressure, ensuring even force distribution on the upper bending die, eliminating the need for individual locking, and providing good consistency in the blade tips on the upper bending die, resulting in higher precision products. It also significantly improves die-changing efficiency and has a high degree of automation. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Appendix Figure 1 This is a schematic diagram of an automatic knife locking device for a flexible bending center.

[0019] Appendix Figure 2 This is a side view of an automatic knife-locking device for a flexible bending center.

[0020] The markings in the attached diagram represent:

[0021] 1. Airbag, 2. Airbag retainer, 3. Upper bending die, 4. Upper slide plate, 5. Airbag retainer mounting hole, 6. Pressure block, 7. Tool rail, 8. Tool tip, 9. Pressure block, 10. Limiting groove, 11. Upper bending die L-hook, 12. Tool rail groove. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0023] In this utility model, unless otherwise stated, directional terms such as "upper," "lower," "left," and "right" generally refer to the upper, lower, left, and right as shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself.

[0024] The following is a preferred embodiment:

[0025] like Figure 1-2 As shown, an automatic locking device for a flexible bending center in this embodiment includes an upper sliding plate 4 and an upper bending die 3. A blade rail 7 is fixed at the bottom of the upper sliding plate 4, and the upper bending die 3 is slidably connected to the blade rail 7. A limit groove 10 is provided on the right side of the upper bending die 3.

[0026] An airbag retainer 2 is fixed on the lower right side of the upper slide plate 4 and near the limiting groove 10 of the upper bending die 3. A pressure block 6 is provided at the opening of the airbag retainer 2. The left side of the pressure block 6 cooperates with the limiting groove 10, and the right side of the pressure block 6 and the airbag retainer 2 form a closed space. An airbag 1 is placed in the closed space. The contraction and expansion of the airbag 1 causes the upper bending die 3 to loosen and lock on the tool rail 7. In this embodiment, the pressure block 6 is L-shaped.

[0027] The upper slide plate 4 has mounting holes at its bottom, which, together with screws, secure the cutter rail 7 to the bottom of the upper slide plate 4. In this embodiment, the cutter rail 7 also has a pressure block 9 on its right side, which, together with the screws, firmly secures the cutter rail 7 to the bottom of the upper slide plate 4.

[0028] In this embodiment, a groove 12 is provided on the left side of the cutter rail 7, and the connection between the upper bending die 3 and the cutter rail 7 is set as an L-shaped hook 11. The L-shaped hook 11 is engaged with the groove 12, so that the upper bending die 3 can move back and forth on the cutter rail 7 along the groove 12.

[0029] The limiting groove 10 is V-shaped, and the contact surface between the pressure block 6 and the limiting groove 10 is also V-shaped. The V-shaped limiting groove 10 and the pressure block 6 work together to drive the upper bending die 3 to move upward or downward.

[0030] The upper slide plate 4 has an airbag retainer mounting hole 5 on the lower right side. The airbag retainer mounting hole 5 is used in conjunction with screws to fix the airbag retainer 2 to the lower part of the upper slide plate 4.

[0031] In this embodiment, an automatic locking device for a flexible bending center has a groove 12 on the left side of the blade rail 7 and an L-shaped hook 11 on the top of the upper bending die 3. The L-shaped hook 11 engages with the groove 12, allowing the upper bending die 3 to move back and forth along the groove 12 on the blade rail 7. This ensures that the blade tip 8 on the upper bending die 3 moves in the same straight line and does not affect the bending accuracy of the sheet metal.

[0032] The airbag 1 is located on the right side of the pressure block 6 and forms a closed space with the airbag holder 2. When the airbag 1 inflates, it drives the pressure block 6 to move to the left. Since the pressure block 6 and the limiting groove 10 can be engaged, the upper bending die 3 can be driven to move to the left and upward, so that the top of the upper bending die 3 is in contact with the bottom surface of the cutter rail 7. At this time, the upper bending die 3 is locked.

[0033] When the airbag 1 contracts, the pressure block 6 moves to the right as the airbag 1 contracts, and the pressure block 6 moves away from the limit groove 10, causing the upper bending die 3 to move to the right and downward, so that the top of the upper bending die 3 moves away from the bottom surface of the cutter rail 7. At this time, the upper bending die 3 is released.

[0034] Since the upper bending die 3 has a fixed blade tip 8 at the bottom, the above movements enable the upper bending die 3 to achieve the effect of constraining the vertical degree of freedom. The blade tip 8 of the upper bending die 3 has good straightness and consistency, stable clamping, and can quickly release or clamp all the dies, making the operation simple.

[0035] The embodiments described above are merely one preferred embodiment of this utility model. Ordinary variations and substitutions made by those skilled in the art within the scope of this utility model's technical solution should be included within the protection scope of this utility model.

Claims

1. An automatic locking device for a flexible bending center, comprising an upper sliding plate and an upper bending die, characterized in that, The bottom of the upper slide plate is fixed with a cutter rail, and the upper bending die is slidably connected to the cutter rail. A limit groove is provided on one side of the upper bending die. An airbag retainer is fixed on one side of the lower part of the upper slide plate and near the limiting groove of the upper bending die. A pressure block is provided at the opening of the airbag retainer. One side of the pressure block cooperates with the limiting groove, and the opposite side of the pressure block forms a closed space with the airbag retainer. An airbag is placed in the closed space. The contraction and expansion of the airbag causes the upper bending die to loosen and lock on the tool rail.

2. The automatic knife locking device for a flexible bending center according to claim 1, characterized in that, The bottom of the upper slide plate is provided with mounting holes, which are used in conjunction with screws to fix the cutter rail to the bottom of the upper slide plate.

3. An automatic knife locking device for a flexible bending center according to claim 1 or 2, characterized in that, A pressure block is also provided on one side of the cutter rail, which fixes the cutter rail to the bottom of the upper slide plate.

4. The automatic knife locking device for a flexible bending center according to claim 3, characterized in that, A groove is provided on one side of the tool rail, and the connection between the upper bending die and the tool rail is set as an L-shaped hook. The L-shaped hook is engaged with the groove, so that the upper bending die can move along the groove on the tool rail.

5. The automatic knife locking device for a flexible bending center according to claim 4, characterized in that, The limiting groove is V-shaped, and the contact surface between the pressure block and the limiting groove is also V-shaped. The V-shaped limiting groove and the pressure block work together to drive the upper bending die to move upward or downward.

6. The automatic knife locking device for a flexible bending center according to claim 5, characterized in that, The pressure block is generally L-shaped or T-shaped.

7. The automatic knife locking device for a flexible bending center according to claim 6, characterized in that, The upper slide plate has a mounting hole on one side of its lower part. The mounting hole and screws are used to fix the airbag retainer to the lower part of the upper slide plate.

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