A bending die for a bending machine

Abstract

The utility model relates to the field of mechanical processing equipment, and discloses a bending die for a bending machine, including a die base, a bending die, a discharge die and a fixing mechanism. The bending die and the discharge die are both installed on the surface of the die base. After the workpiece is bent on the bending die, it is quickly discharged through the discharge die. The die base is provided with a fixing mechanism, and the bending die is quickly assembled and unassembled with the die base through the fixing mechanism. The utility model has the following advantages and effects: the bottom of the bending die is fixed by a plug plate and a slot, so that the push frame and the pin block can be quickly plugged and separated with the pin slot on the plug plate, thereby meeting the quick installation and discharge of the bending die on the surface of the die base, so that when the bending die is worn, repaired and replaced, it is convenient for workers to operate, and the difficulty and intensity of operation are reduced. After the workpiece is bent, the push rod is reset to push the workpiece out for discharge. This operation does not require workers to manually discharge, can improve labor convenience, and discharge is quick and labor-saving, which is conducive to improving efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing equipment, in particular to a bending die for a bending machine. Background Art

[0002] Bending is a stamping process that uses pressure to force the material to undergo plastic deformation, thereby forming a shape with a certain angle and curvature. Common bending methods include V-bending, Z-bending and reverse pressure bending, which are often used in automotive parts manufacturing and metal products.

[0003] The existing Chinese patent with announcement number CN214391762U discloses a diagonal bending mechanism of a bending machine, including a bending machine frame, a rotating straight baffle, a first placement groove, a sliding groove, a second placement groove, and a motor switch. A working platform is provided on the bending machine frame. After the telescopic mechanism moves, the bending baffle contacts the rotating straight baffle to determine an oblique line, which can process obliquely bent plates, thereby expanding the types of plates that can be bent by the bending mechanism.

[0004] Based on the above situation, the inventors believe that the bending die on the current bending machine is often divided into an upper die and a lower die. Since the lower die is usually fixed on the equipment as a whole, the loading and unloading steps during wear, polishing and replacement are often cumbersome and time-consuming. At the same time, workers are usually required to remove the workpiece after bending, which makes it difficult to improve the workers' labor convenience and efficiency. Utility Model Content

[0005] The utility model aims to provide a bending die for a bending machine, which has the effect of being able to quickly maintain, replace, load and unload the bending die and facilitating automatic unloading of the workpiece after bending.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions: a bending die for a bending machine, comprising a die base, a bending die, a discharge die and a fixing mechanism;

[0007] The bending die and the unloading die are both installed on the surface of the die base. After the workpiece is bent on the bending die, it is quickly unloaded through the unloading die. A fixing mechanism is provided on the die base, and the bending die is quickly loaded and unloaded with the die base through the fixing mechanism.

[0008] The unloading die includes a die body, a unloading rod, a pulley and a pull rope. The bottom of the die body is fixed to the die base. The unloading rod is slidably installed on the die body. The sliding of the unloading rod forms a telescopic movement to quickly push and unload the workpiece on the bending die. The pulley is rotatably installed on the die body. The pull rope is set on the pulley. One end of the pull rope is connected to the unloading rod, and the other end is fixed to the upper die assembly of the bending machine. When the upper die assembly is bent and displaced, the unloading rod is driven to retract through the pull rope.

[0009] By adopting the above technical solution, the installation and separation of the bending die and the die base can be quickly realized, and the bent workpiece can be quickly unloaded, reducing the labor operation intensity of workers.

[0010] The utility model is further configured as follows: a first slide groove parallel to the length direction of the mold body is provided inside the mold body, and a second slide groove and a cavity are sequentially connected to the bottom of the first slide groove.

[0011] By adopting the above technical solution, it is convenient to provide stable guidance for the extension and retraction of the discharge rod.

[0012] The utility model is further configured as follows: the unloading rod includes a push rod, a first slider and a second slider, one end of the push rod is located in the bending groove of the bending mold, and the other end slides into the mold body and is vertically fixed to the first slider, the top of the second slider is fixed to the first slider, and the outer side of the first slider is fixed to the pull rope, and the first slider and the second slider slide along the first slide groove and the second slide groove respectively.

[0013] By adopting the above technical solution, the first slide groove and the second slide groove are matched to facilitate stable sliding.

[0014] The utility model is further configured as follows: the bottom of the second sliding block slides into the cavity, and a first spring for providing a restoring elastic force for the second sliding block is installed in the cavity.

[0015] By adopting the above technical solution, when the first slider is pulled by the pull rope, the first slider can be reset by the force of the second spring after displacement.

[0016] The utility model is further configured as follows: a slot is provided on the surface of the die base, and a mounting slot communicating with the slot is provided inside the die base; a plug plate is fixedly installed at the bottom of the bending die, and the bending die is plugged into the slot through the plug plate.

[0017] By adopting the above technical solution, the plug plate can be inserted into the installation groove through the slot to provide front, back, left and right position limits for the bending mold.

[0018] The utility model is further configured as follows: the fixing mechanism comprises a separation component and an insertion component, the separation component is rotatably mounted on the mold base, the insertion component is arranged on the peripheral side of the separation component, and the separation component is detachably connected to the insertion plate through the insertion component.

[0019] By adopting the above technical solution, the insertion component is operated and force is applied to the insertion component through the separation component, so that the insertion component can be quickly separated from the plug board, so that the plug board can be quickly moved out of the slot.

[0020] The utility model is further configured as follows: the separation assembly includes a cam, a rotating rod, a nut and a torsion spring, the bottom of the cam is rotatably installed in the installation groove, the nut is rotatably installed on the surface of the mold base, the cam and the nut are coaxially fixed by the rotating rod, and a torsion spring is arranged on the outside of the rotating rod to help the cam rotate and reset.

[0021] By adopting the above technical solution, the cam can be automatically reset by the torsion spring after rotating.

[0022] The utility model is further configured as follows: the plug-in assembly is symmetrically arranged on both sides of the separation assembly, and the plug-in assembly includes a push frame, a pin block, a sliding rod and a second spring. The end of the push frame is fixedly equipped with a pin block, the push frame is plugged into the plug plate through the pin block, the inner side of the push frame is in contact with the cam, and the outer side of the push frame is linearly slidably matched with the mold base through the sliding rod, and the second spring is arranged between the push frame and the mounting groove.

[0023] By adopting the above technical solution, the two ends of the second spring are respectively fixed to the push frame and the installation groove, so as to provide a quick resetting elastic force for the push frame.

[0024] The utility model is further configured as follows: the plug plate is provided with a pin groove for plugging with the pin block.

[0025] By adopting the above technical solution, the pin block is conveniently connected to the pin slot, providing a quick installation support for fixing and separating the plug board.

[0026] The beneficial effects of the utility model are:

[0027] 1. The bottom of the bending die is fixed by a plug plate and a slot, so that the push frame and the pin block can be quickly plugged and separated from the pin slot on the plug plate, thereby meeting the quick installation and removal of the bending die on the die base surface, so that when the bending die is worn, repaired and replaced, it is convenient for workers to operate and reduce the difficulty and intensity of operation;

[0028] 2. The bending die is equipped with a push rod, which is connected to the upper die through a pull rope, so that when the upper die moves downward, it can drive the push rod to move out of the bending die for the workpiece to bend. After the workpiece is bent, the push rod is reset to push the workpiece out for unloading. This operation does not require workers to unload manually, can improve labor convenience, unload quickly and labor-saving, and help improve efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 A schematic diagram of the structure of a bending die for a bending machine provided in an embodiment of the utility model;

[0031] Figure 2 This is a schematic diagram of the structure of the bending mold separation in the embodiment of the utility model;

[0032] Figure 3 This is a schematic diagram of the structure inside the installation slot in the embodiment of the utility model;

[0033] Figure 4 This is a schematic diagram of the structure of the unloading die in the embodiment of the utility model;

[0034] Figure 5 It is a schematic structural diagram of the bending die in the embodiment of the utility model when it is implemented.

[0035] In the figure, 1, die base; 2, bending die; 3, unloading die; 4, fixing mechanism; 5, limiting mechanism; 11, slot; 12, mounting slot; 21, plug plate; 211, pin slot; 31, die body; 32, unloading rod; 33, pulley; 34, pull rope; 311, first slide slot; 312, second slide slot; 313, cavity; 314, first spring; 321, push rod; 322, first slider; 323, second slider; 41, separation component; 42, insertion component; 411, cam; 412, rotating rod; 413, nut; 414, torsion spring; 421, push frame; 422, pin block; 423, slide rod; 424, second spring. DETAILED DESCRIPTION

[0036] The technical solution of the utility model will be described clearly and completely below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of 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.

[0037] The utility model embodiment specifically provides a bending die for a bending machine, please refer to Figure 1 , including a die base 1, a bending die 2, a discharge die 3 and a fixing mechanism 4;

[0038] Among them, the bending die 2 and the unloading die 3 are both installed on the surface of the die base 1. After the workpiece is bent on the bending die 2, it is quickly unloaded through the unloading die 3. A fixing mechanism 4 is provided on the die base 1, and the bending die 2 is quickly loaded and unloaded with the die base 1 through the fixing mechanism 4.

[0039] For details, please refer to Figure 2A slot 11 is provided on the surface of the mold base 1, and a mounting slot 12 communicated with the slot 11 is provided inside the mold base 1. A plug plate 21 is fixedly installed at the bottom of the bending mold 2. The bending mold 2 is plugged into the slot 11 through the plug plate 21, so that the plug plate 21 can be inserted into the mounting slot 12 through the slot 11 to provide front, back, left and right position limits for the bending mold 2.

[0040] For further information, please refer to Figure 2 and Figure 3 The fixing mechanism 4 includes a separation component 41 and an insertion component 42. The separation component 41 is rotatably mounted on the mold base 1. The insertion component 42 is arranged on the side of the separation component 41. The separation component 41 is detachably connected to the plug-in board 21 through the insertion component 42. The insertion component 42 is operated and force is applied to the separation component 41 so that the insertion component 42 can be quickly separated from the plug-in board 21, so that the plug-in board 21 can be quickly moved out of the slot 11.

[0041] Among them, the separation component 41 includes a cam 411, a rotating rod 412, a nut 413 and a torsion spring 414. The bottom of the cam 411 is rotatably installed in the installation groove 12, and the nut 413 is rotatably installed on the surface of the mold base 1. The cam 411 and the nut 413 are coaxially fixed by the rotating rod 412. The cam 411 can be driven to rotate synchronously by rotating the nut 413 with the help of a wrench or other tools. The upper end of the rotating rod 412 is rotated in coordination with the mold base 1. A torsion spring 414 is arranged on the outside of the rotating rod 412 to help the cam 411 rotate and reset, so that the cam 411 can be automatically reset by the torsion spring 414 after rotation.

[0042] Among them, the insertion components 42 are symmetrically arranged on both sides of the separation component 41, so that the insertion components 42 can move relatively away from or approach after being force applied by the separation component 41. The insertion components 42 include a push frame 421, a pin block 422, a slide rod 423 and a second spring 424. The end of the push frame 421 is fixedly equipped with a pin block 422, and the push frame 421 is plugged with the plug plate 21 through the pin block 422. The inner side of the push frame 421 is in contact with the cam 411, and the outer side of the push frame 421 is linearly slidably matched with the mold base 1 through the slide rod 423. The slide rod 423 is vertically arranged in the installation groove 12, and the number of slide rods 423 is set at two or more places to improve the sliding stability of the push frame 421. The second spring 424 is arranged between the push frame 421 and the installation groove 12, and the two ends of the second spring 424 are respectively fixed to the push frame 421 and the installation groove 12 to provide a quick reset elastic force for the push frame 421.

[0043] The plug board 21 is provided with a pin slot 211 for plugging with the pin block 422 , so as to facilitate the connection between the pin block 422 and the pin slot 211 , thereby providing a quick installation support for fixing and separating the plug board 21 .

[0044] It is worth mentioning that a wrench limiting structure 5 is also provided on the mold base 1, and the wrench limiting structure 5 includes a groove 51 and a retaining frame 52. The retaining frame 52 is arranged in the groove 51, and one end of the retaining frame 52 is rotatably matched with the groove 51. The length of the retaining frame 52 is two-thirds of the size of the groove 51, so as to reserve one end in the groove 51 for the hand to rotate the retaining frame 52. The maximum rotation angle of the retaining frame 52 is 90 degrees.

[0045] During implementation, the spanner limiting structure 5 is set to the left of the position when the spanner rotates the nut 413 to make the cam 411 rotate to 90 degrees, so that after the spanner rotates the nut 413 to make the cam 411 rotate, the blocking frame 52 is set up so that the blocking frame 52 is against the left side of the spanner, offsetting the elastic restoring force of the torsion spring 414, so that the hand can cancel the force applied to the spanner, thereby freeing the hand and facilitating the removal of the bending die 2;

[0046] When the bending die 2 needs to be unloaded, the cam 411 is rotated 90 degrees as a whole by rotating the nut 413, and the two ends of the cam 411 are rotated to apply force to the push frame 421, so that the push frames 421 at both ends slide away from the cam 411 after being subjected to the force, so that the pin block 422 can be moved out of the pin groove 211, and then only a lifting force is applied to the bending die 2 to drive the insert plate 21 to be moved out of the slot 11. When it needs to be installed, the insert plate 21 is inserted into the slot 11, and then the force on the nut 413 is cancelled, so that the cam 411 and the push frame 421 are reset by the torsion spring 414 and the second spring 424 respectively, and the pin block 422 is driven to be inserted into the pin groove 211.

[0047] Furthermore, to facilitate the unloading of the bent workpiece, please refer to Figure 2 and Figure 4 The unloading die 3 includes a die body 31, a unloading rod 32, a pulley 33 and a pull rope 34. The bottom of the die body 31 is fixed to the die base 1. The unloading rod 32 is slidably installed on the die body 31. The sliding of the unloading rod 32 forms a telescopic movement to quickly push and unload the workpiece on the bending die 2.

[0048] The pulley 33 is rotatably mounted on the mold body 31, and a pull rope 34 is arranged on the pulley 33. One end of the pull rope 34 is connected to the discharge rod 32, and the other end is fixed to the upper mold assembly of the bending machine, so that when the upper mold assembly is bent and displaced, the discharge rod 32 is driven to retract through the pull rope 34. During implementation, the discharge rod 32 is moved by pulling the pull rope 34 so that the discharge rod 32 can be retracted from the bending mold 2.

[0049] Among them, a first slide groove 311 is opened inside the mold body 31 and is parallel to its length direction. The bottom of the first slide groove 311 is connected with a second slide groove 312 and a cavity 313 in sequence. The first slide groove 311, the second slide groove 312 and the cavity 313 are all rectangular structures to ensure that the unloading rod 32 can perform stable linear sliding.

[0050] The cam 322 is provided with a plurality of cams 324, 325 and 326, and the cam 324 is provided with a plurality of cams 325. The cam 324 is provided with a plurality of cams 326, 327 and 328, and the cam 324 is provided with a plurality of cams 328. The cam 324 is provided with a plurality of cams 324, 325 and 328 are provided with a plurality of cams 324.

[0051] It is worth noting that when implementing, please refer to Figure 5 , an outer wheel B is rotatably installed on the bending machine body and is kept parallel to the pulley 33. The outer wheel B has the same structure as the pulley 33. When installing the outer wheel B, the existing support frame and other structures can be used to make the outer wheel B meet the use needs. Those skilled in the art can expand the settings according to the technical solution, so the implementation process is not described in detail. The outer wheel B is located on the upper part of the Y axis of the pulley 33. The top of the pull rope 34 passes around the outside of the outer wheel B and is fixed to the upper mold assembly A. When the upper mold assembly A moves down to bend the workpiece, it can pull the pull rope 34, so that the pull rope 34 pulls the first slider 322 with the pulley 33 and the outer wheel B as the fulcrum, so that the first slider 322 moves to the right along the first slide groove 311 and drives the push rod 321 to move synchronously, so that the push rod 321 can be retracted from the bending mold 2.

[0052] At the same time, the length setting of the pull rope 34 should be such that when the upper mold assembly A moves down and contacts the workpiece on the bending mold 2, the push rod 321 has been moved away from the bending mold 2 to prevent the upper mold assembly 4 from pressing on the push rod 321.

[0053] Among them, the bottom of the second slider 323 slides into the cavity 313, and a first spring 314 is installed in the cavity 313 to provide a reset elastic force for the second slider 323, so that when the first slider 322 is pulled by the pull rope 34, the first slider 322 can be reset by the force of the second spring 314 after displacement, so that when the upper mold assembly A is reset, the push rod 321 can be reset synchronously to push the workpiece on the bending mold 2 out of the bending groove.

[0054] It is worth noting that when the bending die 2 is unloaded from the die base 1, since the push rod 321 is inside the bending die 2, the pull rope 34 can be manually pulled so that the pull rope 34 drives the push rod 321 to retract and separate from the bending die 2, so as to facilitate the removal of the bending die 2.

Claims

1. A bending die for a bending machine, characterized in that: It comprises a die base (1), a bending die (2), a discharge die (3) and a fixing mechanism (4); The bending die (2) and the unloading die (3) are both mounted on the surface of the die base (1); after the workpiece is bent on the bending die (2), it is quickly unloaded through the unloading die (3); a fixing mechanism (4) is provided on the die base (1); the bending die (2) is quickly assembled and unassembled with the die base (1) through the fixing mechanism (4); The unloading die (3) comprises a die body (31), an unloading rod (32), a pulley (33) and a drawstring (34); the bottom of the die body (31) is fixed to the die base (1); the unloading rod (32) is slidably mounted on the die body (31); a telescopic movement is formed by sliding the unloading rod (32) so as to quickly push and unload the workpiece on the bending die (2); the pulley (33) is rotatably mounted on the die body (31); the drawstring (34) is arranged on the pulley (33); one end of the drawstring (34) is connected to the unloading rod (32) and the other end is fixed to the upper die assembly of the bending machine so that when the upper die assembly is bent and displaced, the unloading rod (32) is driven to retract through the drawstring (34).

2. A bending die for a bending machine according to claim 1, characterized in that: The mold body (31) is provided with a first slide groove (311) parallel to its length direction, and the bottom of the first slide groove (311) is connected with a second slide groove (312) and a cavity (313) in sequence.

3. A bending die for a bending machine according to claim 2, characterized in that: The unloading rod (32) comprises a push rod (321), a first slider (322) and a second slider (323); one end of the push rod (321) is located in the bending groove of the bending die (2); the other end slides into the die body (31) and is vertically fixed to the first slider (322); the top of the second slider (323) is fixed to the first slider (322); the outer side of the first slider (322) is fixed to the pull rope (34); the first slider (322) and the second slider (323) slide along the first slide groove (311) and the second slide groove (312) respectively.

4. A bending die for a bending machine according to claim 3, characterized in that: The bottom of the second sliding block (323) slides into the cavity (313), and a first spring (314) for providing a restoring elastic force for the second sliding block (323) is installed in the cavity (313).

5. A bending die for a bending machine according to claim 1 or 4, characterized in that: The surface of the mold base (1) is provided with a slot (11), and the interior of the mold base (1) is provided with a mounting slot (12) which is in communication with the slot (11). A plug plate (21) is fixedly mounted on the bottom of the bending mold (2), and the bending mold (2) is plugged into the slot (11) via the plug plate (21).

6. A bending die for a bending machine according to claim 5, characterized in that: The fixing mechanism (4) comprises a separation component (41) and an insertion component (42); the separation component (41) is rotatably mounted on the mold base (1); the insertion component (42) is arranged on the peripheral side of the separation component (41); and the separation component (41) is detachably connected to the insertion plate (21) via the insertion component (42).

7. A bending die for a bending machine according to claim 6, characterized in that: The separation assembly (41) comprises a cam (411), a rotating rod (412), a nut (413) and a torsion spring (414); the bottom of the cam (411) is rotatably mounted in the mounting groove (12); the nut (413) is rotatably mounted on the surface of the mold base (1); the cam (411) and the nut (413) are coaxially fixed via the rotating rod (412); and a torsion spring (414) is arranged on the outer side of the rotating rod (412) to help the cam (411) to rotate and reset.

8. A bending die for a bending machine according to claim 7, characterized in that: The plug-in assembly (42) is symmetrically arranged on both sides of the separation assembly (41), and the plug-in assembly (42) includes a push frame (421), a pin block (422), a slide rod (423) and a second spring (424). The pin block (422) is fixedly installed at the end of the push frame (421), and the push frame (421) is plugged with the plug plate (21) through the pin block (422). The inner side of the push frame (421) is in contact with the cam (411), and the outer side of the push frame (421) is linearly slidably matched with the mold base (1) through the slide rod (423). The second spring (424) is arranged between the push frame (421) and the mounting groove (12).

9. A bending die for a bending machine according to claim 8, characterized in that: The plug plate (21) is provided with a pin slot (211) for plugging with the pin block (422).

Images