A kind of bending prefabrication processing equipment for automobile sheet parts

Abstract

The present invention discloses a prefabrication equipment for bending automobile sheet parts, which relates to the field of automobile parts processing, including a processing table, two support plates are symmetrically arranged on both sides of the top surface of the processing table about the center line of the processing table, a gap for bending is spaced between the two support plates, a rectangular hole is opened on the top surface of the processing table at the gap formed by the two support plates, a gantry is arranged in the middle of the processing table at the gap, a hydraulic system, a grinding mechanism and a pressure component are arranged on the gantry, and a limiting mechanism is arranged on the top of the two support plates. The hydraulic system drives the grinding mechanism to bend the metal while completing the grinding of wrinkles and the discharge of debris, and the hydraulic system synchronously drives the pressure component to cooperate with the limiting mechanism to achieve the limiting treatment of the metal plate, thereby improving the accuracy of the bending.

Description

Technical Field

[0001] The invention relates to the field of automobile parts processing, and in particular to a bending prefabrication processing device for automobile plate parts. Background Art

[0002] Bending prefabrication of sheet metal parts refers to the pre-bending of sheet metal before processing sheet metal parts. This processing usually involves using mechanical equipment (such as a bending machine) to bend the sheet metal according to the design requirements so that it can be assembled and installed more easily in the subsequent manufacturing process. This prefabrication is usually used to manufacture metal parts such as steel plates, aluminum plates, etc. Bending prefabrication can ensure the quality and precision of the final product by accurately controlling the bending angle, bending radius and bending position.

[0003] In the process of automobile sheet metal repair, it is necessary to perform a bending process on the metal sheet. Usually, a bending machine is used to bend the metal sheet. However, in the bending process, as the metal sheet is bent, the two sides of the metal sheet move toward the bend, but it is impossible to ensure that the movement distance of the two sides maintains the same feed size, which causes the position of the original bend to shift, resulting in a gap that is too large or too small between the bent metal sheet and the original metal part of the automobile, affecting the aesthetics of the automobile sheet metal assembly. At the same time, in the bending process, the bend is squeezed, which reduces the surface area of ​​the metal sheet at the bend, and wrinkles and bulges are easily formed at the bend, which further reduces the accuracy and aesthetics of the metal plate bending process. Summary of the invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a bending and prefabrication processing equipment for automobile sheet parts to solve the problems existing in the above-mentioned background technology.

[0005] The present invention provides the following technical solution: a kind of bending prefabrication processing equipment for automobile sheet parts, comprising a processing table, two support plates are symmetrically arranged on both sides of the top surface of the processing table about the center line of the processing table, a gap for bending is spaced between the two support plates, a rectangular hole is opened on the top surface of the processing table at the gap formed by the two support plates, a gantry is arranged at the gap in the middle of the processing table, a hydraulic system is assembled in the middle of the top surface of the gantry, a grinding mechanism is fixedly connected to the free end of the hydraulic system, and the grinding mechanism and the gap are in an upper and lower corresponding relationship, a limiting mechanism is arranged on the top of each support plate, the two limiting mechanisms are connected by an elastic band, a pressure assembly is connected on both sides of the grinding mechanism, and the pressure assembly corresponds to the middle position of the elastic band in an upper and lower manner.

[0006] Preferably, the hydraulic system includes a hydraulic press and a guide rod, the hydraulic press is fixedly installed at the center of the top surface of the gantry, and the piston end of the hydraulic press passes through the gantry and is fixedly connected to the middle of the grinding mechanism, the guide rod is movably inserted into the top surface of the gantry and located on both sides of the hydraulic press, and the bottom end of the guide rod is connected to both sides of the grinding mechanism.

[0007] Preferably, a mounting groove is provided inside the support plate, and the mounting groove is a "convex" structure, and both sides of the bottom of the mounting groove completely penetrate the side of the support plate, and at least three sliding grooves are provided on one side of the top surface of the support plate, and the sliding grooves are all connected to the mounting groove.

[0008] Preferably, the limiting mechanism includes a slide plate, a connecting rod, a connecting block and a limiting rod. The slide plate is slidably placed inside the mounting groove. Two connecting rods are fixedly mounted on both sides of one end of the slide plate and protrude from the outside of the mounting groove. One end of the mounting groove away from the connecting rod is fixedly connected to a connecting block. Three limiting rods are vertically mounted on the other end of the slide plate, and each limiting rod is placed in the slide groove.

[0009] Preferably, the grinding mechanism includes a bending mold and a U-shaped frame, the top surface of the U-shaped frame is fixedly connected to the piston end of the hydraulic press, the two sides of the top surface of the U-shaped frame are fixedly connected to two guide rods, and the bending mold is rotatably installed at the bottom of the U-shaped frame.

[0010] Preferably, a rectangular groove is provided on the outer surface of the bending mold, a grinding sheet is fixedly installed on one side of the inner part of the rectangular groove, and the grinding sheet and the other side of the rectangular groove form a storage chamber.

[0011] Preferably, a hole is provided at the bottom of the bending mold, and a counterweight rod is detachably installed inside the hole.

[0012] Preferably, the pressure assembly includes a connecting rod and a pressure roller, the connecting rod is fixedly mounted on the side of the U-shaped frame, and the pressure roller is fixedly mounted on the end of the connecting rod and is in a vertical corresponding relationship with the elastic band.

[0013] Preferably, a driving mechanism is provided at one end of the top surface of the U-shaped frame, and the driving mechanism is fixedly connected to one end of the bending mold through a belt and a pulley.

[0014] Preferably, a semicircular groove is provided on the top of one end of the two support plates close to each other, and a roller is rotatably installed inside the semicircular groove, and the top surface of the roller is flush with the top surface of the support plate, and the top surfaces of the two support plates are provided with a smooth layer.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The present invention utilizes a hydraulic system to drive a grinding mechanism to move downward to apply a force to the sheet metal so that the metal plate is bent. When the hydraulic system presses down the bent metal plate, the pressure component presses down the limiting mechanism so that the two limiting mechanisms abut against the metal plate and move closer to each other, so that the feeding size of the two sides of the metal plate to the bending portion remains the same, thereby ensuring the accuracy of the preset bending position of the metal plate, avoiding the formation of an excessively large or excessively small gap between the metal plate and the original metal parts of the automobile, and improving the aesthetics of the automobile sheet metal assembly. At the same time as bending, the driving mechanism is used to drive the bending mold provided by the grinding mechanism to rotate, so that the grinding sheet provided on the outer surface of the bending mold grinds the wrinkles generated by the bending, and the grinding work of the bending portion of the sheet metal is completed while bending, which not only improves the smoothness of the bending portion of the sheet metal, but also improves the work efficiency. When the hydraulic system drives the grinding mechanism to bend the metal, the grinding of the wrinkles and the discharge of the debris are completed, and the hydraulic system synchronously drives the pressure component to cooperate with the limiting mechanism to achieve the limiting processing of the metal plate, thereby improving the accuracy of the bending.

[0017] The present invention directly performs a grinding process on the bending mold and the metal plate when grinding wrinkles at the bending part of the metal plate. The heat generated by the grinding heats the bending part of the metal plate. At the same time, when the high-speed centrifugal fan generates debris during negative pressure adsorption grinding, a negative pressure airflow is formed on the bending mold and the bending part of the metal plate. The flowing airflow is used to cool the heated metal plate, thereby achieving a heat treatment effect on the bent metal plate, greatly reducing the stress effect generated after the metal plate is bent and causing the bending angle to be reset, thereby improving the bending effect of the metal plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention.

[0019] Figure 2 It is a schematic diagram of the support plate installation structure of the present invention.

[0020] Figure 3 It is a schematic diagram of the cross-sectional structure of the support plate of the present invention.

[0021] Figure 4 It is a schematic diagram of the installation structure of the grinding mechanism of the present invention.

[0022] Figure 5 It is a schematic diagram of the bending abrasive tool structure of the present invention.

[0023] Figure 6 For the present invention Figure 2 Enlarged view of point A.

[0024] The accompanying drawings are marked as follows: 1. processing table; 11. rectangular hole; 12. high-speed centrifugal fan; 13. filter bag; 2. support plate; 21. mounting groove; 22. slide groove; 23. roller; 24. smooth layer; 3. gantry; 4. hydraulic system; 41. hydraulic press; 42. guide rod; 5. grinding mechanism; 51. bending mold; 511. rectangular groove; 512. grinding sheet; 513. counterweight rod; 52. U-shaped frame; 6. limiting mechanism; 61. slide plate; 62. connecting rod; 63. connecting block; 64. elastic belt; 65. limiting rod; 7. pressure assembly; 71. connecting rod; 72. pressure roller; 8. driving mechanism. DETAILED DESCRIPTION

[0025] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0026] The present invention provides a prefabrication and bending processing equipment for automobile sheet parts, such as Figure 1-6 As shown, it includes a processing table 1, two support plates 2 are symmetrically arranged on both sides of the top surface of the processing table 1 about the center line of the processing table 1, and a gap for bending is spaced between the two support plates 2. A rectangular hole 11 is opened on the top surface of the processing table 1 at the gap formed by the two support plates 2, and a gantry 3 is arranged at the middle of the processing table 1 at the gap. A hydraulic system 4 is assembled in the middle of the top surface of the gantry 3, and a grinding mechanism 5 is fixedly connected to the free end of the hydraulic system 4, and the grinding mechanism 5 is in a vertical corresponding relationship with the gap. A limiting mechanism 6 is arranged on the top of each support plate 2, and the two limiting mechanisms 6 are connected by an elastic belt 64. A pressure component 7 is connected to both sides of the grinding mechanism 5, and the pressure component 7 corresponds to the middle position of the elastic belt 64.

[0027] The hydraulic system 4 drives the grinding mechanism 5 to move downward to apply a force to the sheet metal, so that the metal plate is bent. When the hydraulic system 4 presses down the bent metal plate, the pressure component 7 presses down the limit mechanism 6, so that the two limit mechanisms 6 abut against the metal plate and move closer to each other, so that the feeding size of the two sides of the metal plate to the bending part remains the same, so that the accuracy of the preset bending position of the metal plate is ensured, and the gap between the metal plate and the original metal parts of the automobile is avoided. It is too large or too small to improve the aesthetics of the automobile sheet metal assembly, and the driving mechanism 8 is used to drive the grinding at the same time as the bending. The bending grinder 51 arranged in the mechanism 5 rotates, so that the grinding sheet 512 arranged on the outer surface of the bending grinder 51 grinds the wrinkles produced by bending, and completes the grinding work of the bending part of the sheet metal while bending, which not only improves the smoothness of the bending part of the sheet metal, but also improves the work efficiency. When the hydraulic system 4 drives the grinding mechanism 5 to bend the metal, it completes the grinding of the wrinkles and discharges the debris, and the hydraulic system 4 simultaneously drives the pressure component 7 to cooperate with the limiting mechanism 6 to realize the limiting processing of the metal plate, thereby improving the accuracy of bending.

[0028] At the same time, when grinding the wrinkles at the bending part of the metal plate, the bending mold 512 directly performs a grinding process on the metal plate. The heat generated by the grinding heats the bending of the metal plate, and the heated metal plate is easier to be bent. At the same time, when the high-speed centrifugal fan generates debris during negative pressure adsorption grinding, a negative pressure airflow is formed on the bending mold and the bending part of the metal plate. The flowing airflow is used to cool the heated metal plate, thereby achieving a heat treatment effect on the bent metal plate, greatly reducing the stress effect generated after the metal plate is bent, which causes the bending angle to be reset, and improving the bending effect of the metal plate.

[0029] As one of the embodiments, the hydraulic system 4 includes a hydraulic press 41 and a guide rod 42. The hydraulic press 41 is fixedly installed at the center of the top surface of the gantry 3, and the piston end of the hydraulic press 41 passes through the gantry 3 and is fixedly connected to the middle of the grinding mechanism 5. The guide rod 42 is movably inserted into the top surface of the gantry 3 and is located on both sides of the hydraulic press 41, and the bottom end of the guide rod 42 is connected to the two sides of the grinding mechanism 5.

[0030] Specifically, a mounting groove 21 is opened inside the support plate 2, and the mounting groove 21 is a "convex" structure when viewed from above. The bottom sides of the mounting groove 21 completely penetrate the side surfaces of the support plate 2, and at least three slide grooves 22 are opened on one side of the top surface of the support plate 2, and the slide grooves 22 are all connected to the mounting groove 21.

[0031] As one of the embodiments, the limiting mechanism 6 includes a slide plate 61, a connecting rod 62, a connecting block 63 and a limiting rod 65. The slide plate 61 is slidably placed inside the mounting groove 21. Two connecting rods 62 are fixedly installed on both sides of one end of the slide plate 61 and protrude from the outside of the mounting groove 21. The end of the mounting groove 21 away from the connecting rod 62 is fixedly connected with a connecting block 63. Three limiting rods 65 are vertically installed at the other end of the slide plate 61, and each limiting rod 65 is placed in the slide groove 22. The slide plate 61 can slide freely inside the mounting groove 21, and the connecting rod 62 is fixedly installed with the slide plate 61 and protrudes from the mounting groove 21. The connecting block 63 thereon can be connected to the connecting block 63 on another connecting rod 62 through a connected elastic band 64, and the three limiting rods 65 can follow the slide plate 61 to slide freely inside the slide groove 22.

[0032] As one of the embodiments, the grinding mechanism 5 includes a bending mold 51 and a U-shaped frame 52. The top surface of the U-shaped frame 52 is fixedly connected to the piston end of the hydraulic press 41, and the two sides of the top surface of the U-shaped frame 52 are fixedly connected to two guide rods 42. The bending mold 51 is rotatably installed at the bottom of the U-shaped frame 52. The bending mold 51 is a cylindrical structure and is used to bend arc-bent metal plates.

[0033] Specifically, a rectangular groove 511 is formed on the top of the bending mold 51, and a grinding sheet 512 is fixedly installed on one side of the inner side of the rectangular groove 511. Figure 5 As shown, the outer surface of the grinding sheet 512 has an arc-shaped structure, and the curvature is the same as the curvature of the outer surface of the bending mold 51. The grinding sheet 512 and the other side of the rectangular groove 511 form a chamber. A hole is opened at the bottom of the bending mold 51, and a counterweight rod 513 is detachably installed inside the hole. The counterweight rod 513 increases the weight of a part of the bending mold 51 and is designed relative to the rectangular groove 511. When the grinding is stopped, under the weight of the counterweight rod 513, the position of the counterweight rod 513 corresponds to the metal part, so that the grinding sheet 512 inside the rectangular groove 511 is kept away from the metal plate, avoiding unnecessary damage to the metal plate when the grinding is stopped.

[0034] As one of the embodiments, the pressure assembly 7 includes a connecting rod 71 and a pressure roller 72. The connecting rod 71 is fixedly installed on the side of the U-shaped frame 52, and the pressure roller 72 is fixedly installed at the end of the connecting rod 71, and is in a vertical corresponding relationship with the elastic belt 64. The hydraulic system 4 is used to drive the connecting rod 71 and the pressure roller 72 to move downward to press down the elastic belt 64, so that the two limiting mechanisms 6 are brought together to limit the feeding of the metal plate. Through the cooperation of the hydraulic system 4, the pressure assembly 7 and the limiting mechanism 6, the position displacement of the metal plate during bending is avoided.

[0035] Specifically, a driving mechanism 8 is provided at one end of the top surface of the U-shaped frame 52, and the driving mechanism 8 is fixedly connected to one end of the bending mold 51 through a belt and a pulley. The driving mechanism 8 includes a motor, a belt and two pulleys. The two pulleys are respectively connected to the output shaft of the motor and the bending mold 51, and are driven by a belt.

[0036] Specifically, a semicircular groove is provided at the top of one end of the two support plates 2 that are close to each other, and a roller 23 is rotatably installed inside the semicircular groove, and the top surface of the roller 23 is flush with the top surface of the support plate 2. When the supported metal plate is bent, it can protect the metal plate and avoid damage to the metal plate caused by scratches between the edges of the metal plate and the support plate 2. A smooth layer is provided on the top surface of the two support plates 2. The smoothness can be formed by carburizing or nitriding, or by electroplating one side with lead or nickel, which can greatly reduce the friction between the metal plate and the support plate, which is beneficial to increase the feed size of the metal plate when it is pressed down for bending, thereby improving the accuracy of the bending.

[0037] Specifically, it also includes a PLC control system, which is connected to each drive unit (high-speed centrifugal fan 12, hydraulic press 41, drive mechanism 8) through the PLC control system, and is used to edit programs such as opening / closing the drive unit, and control the bending angle of the bending plate by controlling the extension length of the hydraulic press 41, and control the drive mechanism to start the motor set in the grinding mechanism 8, so that the motor drives the bending mold 51 to rotate and grind the metal plate, and the high-speed centrifugal fan 12 is controlled to achieve adsorption and discharge of grinding debris.

[0038] Place the metal plate to be bent on the two support plates 2, and align the position to be bent with five, then move the two limit mechanisms 6 and make the two limit mechanisms 6 abut against the sheet metal parts, then turn on the hydraulic system 4, the hydraulic system 4 drives the grinding mechanism 5 to descend to bend the metal plate, and at the same time turn on the driving mechanism 8 to drive the bending mold 51 set in the grinding mechanism 5 to rotate and grind the wrinkles at the bending position, when the metal plate is bent, the bending position of the metal plate moves downward, and the two sides of the metal plate are tilted and move to the bending position, and when the hydraulic system 4 moves, the two elastic bands 64 are pressed down through the pressure assembly 7, so that the two elastic bands 64 drive the two limit mechanisms 6 to abut and clamp the two sides of the metal plate to avoid position displacement of the metal plate during bending, and after the bending is completed, the driving mechanism 8 and the hydraulic system 4 stop and reset synchronously, and the metal plate is also polished at this time.

[0039] Several points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0040] The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiment. Any equivalent modifications or changes made by ordinary technicians in this field based on the contents disclosed by the present invention should be included in the protection scope recorded in the claims.

Claims

1. A bending and prefabrication processing equipment for automobile sheet parts, comprising a processing table (1), characterized in that: Two support plates (2) are symmetrically arranged on both sides of the top surface of the processing table (1) about the center line of the processing table (1), and a gap for bending is spaced between the two support plates (2). A rectangular hole (11) is opened on the top surface of the processing table (1) at the gap formed by the two support plates (2), and a high-speed centrifugal fan (12) is embedded and installed in the middle of both ends of the rectangular hole (11), and a filter bag (13) is connected to the other end of the high-speed centrifugal fan (12). The middle part of the processing table (1) is provided with A gantry (3) is provided, wherein a hydraulic system (4) is installed in the middle of the top surface of the gantry (3), a grinding mechanism (5) is fixedly connected to the free end of the hydraulic system (4), and the grinding mechanism (5) is in a vertically corresponding relationship with the gap, a limiting mechanism (6) is provided on the top of each support plate (2), the two limiting mechanisms (6) are connected by an elastic band (64), and a pressure assembly (7) is connected to both sides of the grinding mechanism (5), and the pressure assembly (7) corresponds to the middle position of the elastic band (64) in a vertically corresponding relationship.

2. The automobile sheet parts bending and prefabrication processing equipment according to claim 1 is characterized by: The hydraulic system (4) comprises a hydraulic press (41) and a guide rod (42); the hydraulic press (41) is fixedly mounted at the center of the top surface of the gantry (3); a piston end of the hydraulic press (41) penetrates the gantry (3) and is fixedly connected to the middle of the grinding mechanism (5); the guide rod (42) is movably plugged into the top surface of the gantry (3) and is located on both sides of the hydraulic press (41); and the bottom end of the guide rod (42) is connected to both sides of the grinding mechanism (5).

3. The automobile sheet parts bending and prefabrication processing equipment according to claim 1 is characterized by: The support plate (2) has a mounting groove (21) formed inside, and the mounting groove (21) has a convex structure, and both sides of the bottom of the mounting groove (21) completely penetrate the side of the support plate (2), and at least three slide grooves (22) are formed on one side of the top surface of the support plate (2), and the slide grooves (22) are all connected to the mounting groove (21).

4. The automobile sheet parts bending and prefabrication processing equipment according to claim 1 is characterized by: The limiting mechanism (6) comprises a slide plate (61), a connecting rod (62), a connecting block (63) and a limiting rod (65); the slide plate (61) is slidably placed inside the mounting groove (21); two connecting rods (62) are fixedly mounted on both sides of one end of the slide plate (61) and protrude outside the mounting groove (21); one end of the mounting groove (21) away from the connecting rods (62) is fixedly connected to the connecting block (63); three limiting rods (65) are vertically mounted on the other end of the slide plate (61), and each limiting rod (65) is placed in the slide groove (22).

5. The automobile sheet parts bending and prefabrication processing equipment according to claim 1 is characterized by: The grinding mechanism (5) comprises a bending mold (51) and a U-shaped frame (52); the top surface of the U-shaped frame (52) is fixedly connected to the piston end of the hydraulic press (41); the two sides of the top surface of the U-shaped frame (52) are fixedly connected to two guide rods (42); and the bending mold (51) is rotatably mounted on the bottom of the U-shaped frame (52).

6. The bending and prefabrication processing equipment for automobile sheet parts according to claim 5 is characterized in that: A rectangular groove (511) is provided on the top of the bending mold (51), a grinding sheet (512) is fixedly mounted on one side of the interior of the rectangular groove (511), and the grinding sheet (512) and the other side of the rectangular groove (511) form a chamber.

7. The automobile sheet parts bending and prefabrication processing equipment according to claim 6 is characterized by: A hole is provided at the bottom of the bending mold (51), and a counterweight rod (513) is detachably mounted inside the hole.

8. The automobile sheet parts bending and prefabrication processing equipment according to claim 1 is characterized by: The pressure assembly (7) comprises a connecting rod (71) and a pressure roller (72), wherein the connecting rod (71) is fixedly mounted on a side of the U-shaped frame (52), and the pressure roller (72) is fixedly mounted on an end of the connecting rod (71) and is in a vertically corresponding relationship with the elastic band (64).

9. The automobile sheet parts bending and prefabrication processing equipment according to claim 5 is characterized by: A driving mechanism (8) is provided at one end of the top surface of the U-shaped frame (52), and the driving mechanism (8) is fixedly connected to one end of the bending mold (51) via a belt and a pulley.

10. The automobile sheet parts bending and prefabrication processing equipment according to claim 1 is characterized by: A semicircular groove is provided at the top of one end of the two support plates (2) close to each other, and a roller (23) is rotatably mounted inside the semicircular groove, and the top surface of the roller (23) is flush with the top surface of the support plate (2), and the top surfaces of the two support plates are provided with a smooth layer (24).

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