Adjustable die for metal plate traceless bending

Abstract

The utility model relates to the technical field of sheet metal part machining, and discloses a sheet metal traceless bending adjustable die which comprises a device table, supporting legs are fixedly installed at the left end and the right end of the bottom of the device table, and a groove with an opening in the upper end is formed in the inner side of the device table. The distance between the two multi-stage electric telescopic rods and the distance between the two L-shaped supporting plates are adjusted through the distance adjusting mechanism, sheet metal part bodies with different widths can be conveniently placed, the air cylinder is started to push the pressing die to make contact with the sheet metal part bodies downwards, a bending line is determined, and the sheet metal part bodies can be bent by starting the multi-stage electric telescopic rods. The two L-shaped supporting plates are tightly attached to the bottom face of the sheet metal part body through the rotary connecting mechanism and apply continuous upward pushing force to the two sides of the sheet metal part body to enable the sheet metal part body to be bent, the sheet metal part body is prevented from being stamped from top to bottom, the sheet metal part body does not make contact with the groove wall of the device table and other components, surface damage of the sheet metal part body is avoided, and the sheet metal part body is prevented from being damaged. And the contact surface is prevented from being crushed or scratched, so that the attractiveness of the sheet metal part is not influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of sheet metal processing, in particular to an adjustable die for seamless bending of sheet metal. Background Art

[0002] Sheet metal is a comprehensive product produced by a metal sheet through processes including shearing, punching, cutting, compounding, folding, welding, riveting, and splicing. It has many types and uses and is widely used in industries such as automobiles, decoration, and electromechanical, becoming one of the indispensable production components in modern industrial production. Sheet metal parts sometimes need to be bent to match the components for use. Press brakes are usually used for bending sheet metal parts.

[0003] In the current bending process of sheet metal parts, the sheet metal parts are usually placed on the work surface of the bending machine, and the work surface is preset with a groove. The upper mold located above the groove is driven by a motor to punch the sheet metal parts, so that the sheet metal parts are bent in the groove, thereby achieving the purpose of bending. However, this method makes the sheet metal parts contact the groove, which is easy to cause damage to its surface, resulting in obvious crushing or scratching on the contact surface, thus affecting the appearance of the sheet metal parts. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] The purpose of the utility model is to provide an adjustable die for seamless bending of sheet metal to solve the problem raised in the above-mentioned background technology that the traditional processing method makes the sheet metal contact the groove, which easily causes its surface damage, forms obvious crushing or scratching on the contact surface, and thus affects the appearance of the sheet metal.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sheet metal seamless bending adjustable mold, comprising a device table, support legs are fixedly installed on the left and right ends of the bottom of the device table, a groove with an upper end opening is opened on the inner side of the device table, two L-shaped support plates are symmetrically arranged on the left and right sides above the device table, a sheet metal body is arranged on the upper ends of the two L-shaped support plates, a pressing die is arranged directly above the sheet metal body, two multi-stage electric telescopic rods are symmetrically arranged on the left and right sides of the groove, a rotating connection mechanism is arranged between the two multi-stage electric telescopic rods and the corresponding L-shaped support plates, and a distance adjustment mechanism for controlling the mutual distance between the two multi-stage electric telescopic rods is arranged in the groove.

[0008] Preferably, each set of the rotating connection mechanism comprises two fixing blocks and a fixing rod, the two fixing blocks are symmetrically fixedly installed on the bottom of the L-shaped support plate, and the fixing rod is fixedly installed between the two fixing blocks.

[0009] Through the above technical solution, two fixing blocks and one fixing rod form a connecting member at the bottom of the L-shaped supporting plate, which is used to connect the lower component of the rotating connecting mechanism.

[0010] Preferably, each group of the rotating connection mechanism also includes a rotating sleeve and a connecting column, the outer movable sleeve of the fixed rod is provided with a rotating sleeve, the bottom of the rotating sleeve is fixedly installed with a connecting column, the bottom of the connecting column is inserted into the groove and fixedly installed on the movable end of the corresponding multi-stage electric telescopic rod.

[0011] Through the above technical solution, the L-shaped support plate is rotatably connected to the multi-stage electric telescopic rod through a rotating connection mechanism. When the multi-stage electric telescopic rod is started, the L-shaped support plate is pushed upward. Since the middle part of the sheet metal body is supported by the die, the two ends of the sheet metal body move upward and form a bend in the middle. At this time, the L-shaped support plate can be rotated through the rotating connection mechanism, so that the L-shaped support plate is always consistent with the tilting sheet metal body, and continuously gives it an upward thrust.

[0012] Preferably, the distance adjustment mechanism includes a threaded rod and a movable seat, the threaded rod is rotatably installed at the bottom of the groove, threads with opposite rotation directions are symmetrically arranged on the outer sides of both ends of the threaded rod, and the movable seat is symmetrically threadedly connected to the outer sides of both ends of the threaded rod, and the two multi-stage electric telescopic rods are respectively fixedly installed on the two movable seats.

[0013] Through the above technical solution, when the threaded rod rotates, the movement of the two movable seats towards or away from each other can be controlled, thereby adjusting the distance between the two L-shaped support plates so that the sheet metal body can be placed on the two L-shaped support plates.

[0014] Preferably, the distance adjustment mechanism also includes a fixed box and a motor, the fixed box is fixedly installed on the lower right end of the device table, the motor is fixedly installed on the inner side of the fixed box, and the output shaft of the motor passes through the right wall of the device table and is fixedly connected to the threaded rod.

[0015] Through the above technical solution, the motor is started to drive the threaded rod to rotate to adjust the distance between the two L-shaped support plates.

[0016] Preferably, a fixed column is fixedly installed on the rear side of the upper end of the device table, a top plate is fixedly installed on the upper end of the fixed column, a cylinder is fixedly installed on the bottom of the top plate, and the movable end of the cylinder is fixedly installed on the top of the die.

[0017] Through the above technical solution, after placing the sheet metal body on two L-shaped support plates and adjusting the distance, start the cylinder to push the die downward so that the bottom end of the die just contacts the middle of the upper end surface of the sheet metal body, and then proceed to the next bending work.

[0018] Compared with the prior art, the utility model provides an adjustable die for seamless bending of sheet metal, which has the following beneficial effects:

[0019] The utility model is provided with a device table, supporting legs, grooves, L-shaped supporting plates, sheet metal parts, pressing dies, multi-stage electric telescopic rods, distance adjustment mechanisms, rotating connecting mechanisms, fixing columns, top plates, cylinders, etc., and can use the distance adjustment mechanisms to adjust the distance between two multi-stage electric telescopic rods, and further adjust the distance between two L-shaped supporting plates, so as to facilitate the placement of sheet metal parts of different widths and sizes, and facilitate adjustment. The pressing dies are pushed downward by starting the cylinder to contact the middle of the upper end surface of the sheet metal parts to determine the middle line of the bend, and finally By simultaneously starting two multi-stage electric telescopic rods, the two L-shaped support plates will give a continuous upward thrust to both sides of the sheet metal body. At the same time, through the rotating connection mechanism, the two L-shaped support plates will always fit on the bottom surface of the sheet metal body, so that the two ends of the sheet metal body are bent upward. This device avoids the traditional method of stamping the sheet metal body from top to bottom. The bottom surface of the sheet metal body is never in contact with the groove wall and other components of the device table, so that its surface will not be damaged, and the contact surface is avoided from being crushed or scratched, thereby not affecting the appearance of the sheet metal. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0022] Figure 3 It is a schematic diagram of the component structure of the rotating connection mechanism of the utility model;

[0023] Figure 4 For this utility model Figure 2 Enlarged structural diagram at A in the middle.

[0024] In the figure: 1. installation table; 2. support leg; 3. groove; 4. L-shaped support plate; 5. sheet metal body; 6. die; 7. multi-stage electric telescopic rod; 8. distance adjustment mechanism; 801. threaded rod; 802. moving seat; 803. fixed box; 804. motor; 9. rotating connection mechanism; 901. fixed block; 902. fixed rod; 903. rotating sleeve; 904. connecting column; 10. fixed column; 11. top plate; 12. cylinder. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0026] Embodiment 1:

[0027] like Figure 1-4 As shown, the utility model provides an adjustable die for seamless bending of sheet metal, comprising a device table 1, support legs 2 are fixedly installed at the left and right ends of the bottom of the device table 1, a groove 3 with an upper end opening is provided on the inner side of the device table 1, two L-shaped support plates 4 are symmetrically arranged on the left and right sides above the device table 1, a sheet metal body 5 is arranged on the upper ends of the two L-shaped support plates 4, a pressing die 6 is arranged directly above the sheet metal body 5, two multi-stage electric telescopic rods 7 are symmetrically arranged on the left and right sides of the groove 3, a rotating connection mechanism 9 is arranged between the two multi-stage electric telescopic rods 7 and the corresponding L-shaped support plates 4, and a distance adjustment mechanism 8 for controlling the mutual distance between the two multi-stage electric telescopic rods 7 is arranged in the groove 3.

[0028] Specifically, each set of rotating connection mechanism 9 includes two fixing blocks 901 and one fixing rod 902. The two fixing blocks 901 are symmetrically fixedly installed at the bottom of the L-shaped support plate 4, and the fixing rod 902 is fixedly installed between the two fixing blocks 901. The advantage is that the two fixing blocks 901 and one fixing rod 902 form a connecting member at the bottom of the L-shaped support plate 4, which is used to connect the lower layer components of the rotating connection mechanism 9.

[0029] Specifically, each set of rotating connection mechanism 9 also includes a rotating sleeve 903 and a connecting column 904. The rotating sleeve 903 is movably sleeved on the outer side of the fixed rod 902. The connecting column 904 is fixedly installed at the bottom of the rotating sleeve 903. The bottom of the connecting column 904 penetrates into the groove 3 and is fixedly installed on the movable end of the corresponding multi-stage electric telescopic rod 7. The advantage is that the L-shaped support plate 4 is rotatably connected with the multi-stage electric telescopic rod 7 through the rotating connection mechanism 9. When the multi-stage electric telescopic rod 7 is started, the L-shaped support plate 4 is pushed upward. Since the middle part of the sheet metal body 5 is supported by the die 6, the two ends of the sheet metal body 5 move upward and form a bend in the middle. At this time, the L-shaped support plate 4 can be rotated through the rotating connection mechanism 9, so that the L-shaped support plate 4 is always consistent with the sheet metal body 5 that is tilting, and continuously gives it an upward thrust.

[0030] Embodiment 2:

[0031] like Figure 1 and Figure 2As shown, as an improvement on the previous embodiment. Specifically, the distance adjustment mechanism 8 includes a threaded rod 801 and a movable seat 802, the threaded rod 801 is rotatably installed at the bottom of the groove 3, and the outer sides of the two ends of the threaded rod 801 are symmetrically provided with threads with opposite rotation directions, and the outer sides of the two ends of the threaded rod 801 are symmetrically threadedly connected with the movable seat 802, and two multi-stage electric telescopic rods 7 are respectively fixedly installed on the two movable seats 802. The advantage is that when the threaded rod 801 rotates, the movement of the two movable seats 802 to move relatively close or relatively away can be controlled, so as to adjust the distance between the two L-shaped support plates 4, so that the sheet metal body 5 can be placed on the two L-shaped support plates 4.

[0032] Specifically, the distance adjustment mechanism 8 further includes a fixing box 803 and a motor 804. The fixing box 803 is fixedly installed on the lower right end of the device platform 1, and the motor 804 is fixedly installed on the inner side of the fixing box 803. The output shaft of the motor 804 passes through the right wall of the device platform 1 and is fixedly connected to the threaded rod 801. The advantage is that the threaded rod 801 is rotated by starting the motor 804 to adjust the distance between the two L-shaped support plates 4.

[0033] Specifically, a fixed column 10 is fixedly installed on the rear side of the upper end of the device table 1, a top plate 11 is fixedly installed on the upper end of the fixed column 10, a cylinder 12 is fixedly installed on the bottom of the top plate 11, and the movable end of the cylinder 12 is fixedly installed on the top of the die 6. The advantage is that after the sheet metal body 5 is placed on the two L-shaped support plates 4 and the distance is adjusted, the cylinder 12 is started to push the die 6 downward so that the bottom end of the die 6 just contacts the middle of the upper end surface of the sheet metal body 5, and then the next bending work is carried out.

[0034] When in use, firstly, according to the width of the sheet metal body 5, the motor 804 in the distance adjustment mechanism 8 is started to drive the threaded rod 801 to rotate, and the threaded rod 801 drives the two moving seats 802 to move relatively close or relatively away to control the distance between the two multi-stage electric telescopic rods 7, and further adjust the distance between the two L-shaped support plates 4, and then place the sheet metal body 5 on two horizontal L-shaped support plates 4, and then further use the distance adjustment mechanism 8 to make the sheet metal body 5 just clamped between the two L-shaped support plates 4, and then start the cylinder 12 to push the die 6 downward so that the bottom end of the die 6 just touches the When the middle of the upper end surface of the sheet metal body 5 is touched, the two multi-stage electric telescopic rods 7 are started at the same time. By rotating the connecting mechanism 9, the two L-shaped support plates 4 will continue to give an upward thrust to both sides of the sheet metal body 5. At the same time, the two L-shaped support plates 4 will always be in contact with the bottom surface of the sheet metal body 5, so that the two ends of the sheet metal body 5 are upward and bent inward with the bottom contact surface of the die 6 as the line to achieve the bending purpose. During this process, the bottom surface of the sheet metal body 5 is always not in contact with the wall of the groove 3 and other components of the device table 1, so as not to cause damage to its surface, avoid crushing or scratching of the contact surface, and thus do not affect the appearance of the sheet metal.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sheet metal seamless bending adjustable die, comprising a device table (1), characterized in that: Support legs (2) are fixedly installed at the left and right ends of the bottom of the device platform (1); a groove (3) with an upper end opening is provided on the inner side of the device platform (1); two L-shaped support plates (4) are symmetrically arranged on the left and right sides above the device platform (1); a sheet metal body (5) is arranged at the upper ends of the two L-shaped support plates (4); a die (6) is arranged directly above the sheet metal body (5); two multi-stage electric telescopic rods (7) are symmetrically arranged on the left and right sides in the groove (3); a rotating connection mechanism (9) is provided between the two multi-stage electric telescopic rods (7) and the corresponding L-shaped support plates (4); and a distance adjustment mechanism (8) for controlling the mutual distance between the two multi-stage electric telescopic rods (7) is provided in the groove (3).

2. The adjustable die for seamless bending of sheet metal according to claim 1, characterized in that: Each set of the rotating connection mechanism (9) comprises two fixed blocks (901) and a fixed rod (902); the two fixed blocks (901) are symmetrically fixedly installed at the bottom of the L-shaped support plate (4); and a fixed rod (902) is fixedly installed between the two fixed blocks (901).

3. The adjustable die for seamless bending of sheet metal according to claim 2, characterized in that: Each set of the rotating connection mechanism (9) further comprises a rotating sleeve (903) and a connecting column (904); the rotating sleeve (903) is provided on the outer movable sleeve of the fixed rod (902); the connecting column (904) is fixedly mounted on the bottom of the rotating sleeve (903); the bottom of the connecting column (904) penetrates into the groove (3) and is fixedly mounted on the movable end of the corresponding multi-stage electric telescopic rod (7).

4. The adjustable die for seamless bending of sheet metal according to claim 1, characterized in that: The distance adjustment mechanism (8) comprises a threaded rod (801) and a movable seat (802); the threaded rod (801) is rotatably mounted at the bottom of the groove (3); threads with opposite rotation directions are symmetrically arranged on the outer sides of both ends of the threaded rod (801); and the movable seats (802) are symmetrically threadedly connected on the outer sides of both ends of the threaded rod (801); and the two multi-stage electric telescopic rods (7) are fixedly mounted on the two movable seats (802) respectively.

5. The adjustable die for seamless bending of sheet metal according to claim 4, characterized in that: The distance adjustment mechanism (8) also includes a fixed box (803) and a motor (804); the fixed box (803) is fixedly installed on the lower side of the right end of the device platform (1); the motor (804) is fixedly installed on the inner side of the fixed box (803); the output shaft of the motor (804) passes through the right wall of the device platform (1) and is fixedly connected to the threaded rod (801).

6. The adjustable die for seamless bending of sheet metal according to claim 1, characterized in that: A fixed column (10) is fixedly mounted on the rear side of the upper end of the device platform (1), a top plate (11) is fixedly mounted on the upper end of the fixed column (10), a cylinder (12) is fixedly mounted on the bottom of the top plate (11), and a movable end of the cylinder (12) is fixedly mounted on the top of the die (6).

Images