Sheet metal part bending positioning structure

Abstract

The utility model discloses a sheet metal part bending positioning structure, including the processing platform, the inside center position of processing platform is provided with the sliding slot, and the sliding slot is open type structure, the both sides of the front and rear end of processing platform's inside are all provided with the drive cavity, and the drive cavity is linked with the sliding slot, the inside of drive cavity is provided with the screw rod, and the both sides of screw rod are all with the inner wall rotation connection of drive cavity, the front and rear end of sliding slot lower extreme all is fixedly provided with the limit strip, and the limit strip is symmetrically provided, the upper end of limit strip is provided with the scale line, the both sides of limit strip outside all is provided with the moving plate, and moving plate and limit strip slide limit, and moving plate and scale line are parallel. This structure has solved the problem that the mould is difficult to be positioned and position detected.

Description

Technical Field

[0001] This utility model relates to the field of sheet metal bending technology, specifically a sheet metal bending positioning structure. Background Technology

[0002] In the sheet metal processing industry, bending machines are often used to bend metal sheets. Bending is a process in which metal materials undergo elastic deformation and then plastic deformation under the pressure of the upper or lower die of the bending machine. The sheet metal bending positioning structure is a key module to ensure bending accuracy and improve processing efficiency. The positioning structure moves the forming die to the appropriate position before the subsequent bending operation of the sheet metal is carried out.

[0003] For example, Chinese patent CN212598419U, entitled "An Auxiliary Positioning Structure for Bending Sheet Metal Parts," includes a sheet metal part and a positioning member connected to the sheet metal part. The sheet metal part includes an inclined pre-bent portion. The positioning member has a positioning end, which is away from and parallel to the bending line on the pre-bent portion. The positioning member is integrally formed with the sheet metal part and extends outward from the edge of the sheet metal part near the pre-bent portion. The positioning member is detachably connected to the sheet metal part. The positioning member has at least one first positioning foot that abuts against the outer edge of the sheet metal part. The pre-bent portion has an auxiliary groove, and the positioning member also has a second positioning foot. The second positioning foot is positioned in the auxiliary groove and forms a snap-fit ​​structure with the first positioning foot that engages with the edge of the sheet metal part. The pre-bent portion has an auxiliary groove.

[0004] While the existing technologies can achieve sheet metal bending, in practical use, it is difficult to close and position the mold. Since the mold is usually used to bend the sheet metal, it is difficult to ensure the accuracy of the position when manually adjusting the mold to close, thus reducing the bending accuracy of the sheet metal. On the other hand, it is difficult to detect the position of the mold. Different molds are usually required to process different sheet metal parts, which can easily lead to mold damage due to mold displacement. Therefore, it does not meet the current requirements. In response, we propose a sheet metal bending positioning structure. Utility Model Content

[0005] The purpose of this utility model is to provide a sheet metal bending positioning structure to solve the problems mentioned in the background art, such as the difficulty in closing and positioning the mold and the difficulty in detecting the position of the mold.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a sheet metal bending and positioning structure, including a processing table, a sliding groove is provided at the center of the processing table, the sliding groove has an open structure, driving cavities are provided on both the front and rear ends of the processing table, the driving cavities are connected to the sliding groove, a lead screw is provided inside the driving cavity, both sides of the lead screw are rotatably connected to the inner wall of the driving cavity, limit strips are fixedly provided at the front and rear ends of the lower end of the sliding groove, the limit strips are symmetrically arranged, a scale line is provided at the upper end of the limit strip, and a movable plate is provided on both sides of the outer side of the limit strip, the movable plate slides and limits the limit strip, and the movable plate is parallel to the scale line.

[0007] Preferably, a connecting seat is provided on the outer sleeve of the lead screw, the connecting seat slides and limits the drive cavity, and one end of the connecting seat extends to the outside of the drive cavity and is fixedly connected to the moving plate. Servo motors are fixedly provided on the front and rear ends of both sides of the outer side of the processing table, and the output shaft of the servo motor extends to the inside of the drive cavity and is fixedly connected to the lead screw.

[0008] Preferably, the upper end of the movable plate is provided with a first forming mold, and the front and rear ends of the first forming mold are fixedly provided with fixing seats. The interior of the fixing seats and the interior of the front and rear ends of the movable plate are provided with threaded holes, and the threaded holes on the fixing seats correspond to the threaded holes on the movable plate.

[0009] Preferably, the upper end of the fixing seat is provided with a bolt, and the lower end of the bolt extends into the interior of the moving plate through a threaded hole.

[0010] Preferably, three positioning rods are provided on the outside of the first molding mold located on one side of the processing table, and the positioning rods are distributed at equal intervals. Three positioning holes are provided inside the first molding mold located on the other side of the processing table, and the positioning holes correspond to the positions of the positioning rods.

[0011] Preferably, a fixed frame is fixedly installed at the center of the upper end of the processing table, and hydraulic telescopic devices are fixedly installed at both the front and rear ends of the upper end of the fixed frame. The telescopic end of the hydraulic telescopic device extends to the lower part of the fixed frame, and a second forming mold is fixedly installed at the lower end of the telescopic end of the hydraulic telescopic device.

[0012] Preferably, support rods are fixedly installed at the four corners of the lower end of the processing table.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) This utility model can position the first molding mold by means of a servo motor and a scale line. Before the first molding mold is assembled, the first molding mold has been fixed. At this time, the servo motor is turned on, and the output shaft of the servo motor drives the lead screw to rotate. The rotation of the lead screw drives the connecting seat to move inside the drive cavity. At the same time, the moving plate fixedly connected to the connecting seat moves together. During the movement of the first molding mold, the moving plate slides on the limit strip. At the same time, the scale line on the limit strip is always parallel to the side of the moving plate until the moving plate and the first molding mold are moved to a suitable position. At this time, the operator observes the position of the moving plate on the corresponding scale line, thereby improving the accuracy of the mold movement.

[0015] (2) This utility model can detect the position of the first molding die through the positioning hole and the positioning rod. When the first molding die is spliced, the first molding dies on both sides have been moved to the appropriate position. If the positions of the first molding dies on both sides correspond, the positioning rod on one side of the first molding die will enter the interior of the positioning hole on the other side of the first molding die, and continue to move the first molding dies on both sides until the first molding dies on both sides fit together. Then the subsequent sheet metal operation is carried out. If the positions of the first molding dies on both sides do not correspond, the positioning rod on one side of the first molding die will abut against the other side of the first molding die, thereby improving the position accuracy of the die.

[0016] (3) The present invention can disassemble and assemble the first molding mold through the threaded hole and the bolt. When the first molding mold needs to be replaced, the operator rotates the bolt so that the bolt moves upward through the threaded hole until the bolt is separated from the threaded hole. At this time, the new first molding mold is placed on the moving plate, and the threaded hole on the fixed seat corresponds to the threaded hole on the moving plate. Then the bolt is aligned with the opening of the threaded hole and inserted into the threaded hole. The bolt is rotated so that the bolt moves into the threaded hole through the thread until the thread is moved to the appropriate position, thus completing the fixing of the new first molding mold, thereby improving the flexibility of mold replacement. Attached Figure Description

[0017] Figure 1 This is a perspective view of the overall structure of this utility model;

[0018] Figure 2 This is a front view of the internal structure of this utility model;

[0019] Figure 3 This is a side view of the internal structure of this utility model;

[0020] Figure 4 For the present utility model Figure 3 Enlarged view of a portion of region A in the middle.

[0021] In the diagram: 1. Processing table; 2. Support rod; 3. Fixing frame; 4. Hydraulic telescopic device; 5. Slide groove; 6. Drive cavity; 7. Lead screw; 8. Connecting seat; 9. Moving plate; 10. Servo motor; 11. First forming mold; 12. Limiting strip; 13. Scale line; 14. Fixing seat; 15. Bolt; 16. Positioning rod; 17. Positioning hole; 18. Second forming mold; 19. Threaded hole. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figure 1-4 An embodiment of this utility model provides a sheet metal bending and positioning structure, including a processing table 1, a fixed frame 3 fixedly installed at the center of the upper end of the processing table 1, hydraulic telescopic devices 4 fixedly installed at the front and rear ends of the upper end of the fixed frame 3, the telescopic end of the hydraulic telescopic device 4 extending to the lower part of the fixed frame 3, a second forming mold 18 fixedly installed at the lower end of the telescopic end of the hydraulic telescopic device 4, and support rods 2 fixedly installed at the four corners of the lower end of the processing table 1.

[0024] Please see Figure 1 , Figure 2 and Figure 3 A slide groove 5 is provided at the center of the processing table 1. The slide groove 5 has an open structure. Both the front and rear ends of the processing table 1 are provided with driving cavities 6, which are connected to the slide groove 5. A lead screw 7 is provided inside the driving cavity 6. Both sides of the lead screw 7 are rotatably connected to the inner wall of the driving cavity 6. Limiting strips 12 are fixedly provided at the front and rear ends of the lower end of the slide groove 5. The limiting strips 12 are symmetrically arranged. The upper end of the limiting strip 12 is provided with a scale line 13. Movable plates 9 are provided on both sides of the outside of the limiting strip 12. The movable plates 9 slide and limit the limiting strip 12, and the movable plates 9 are parallel to the scale line 13. A connecting seat 8 is sleeved on the outside of the lead screw 7. The connecting seat 8 slides and limits the driving cavity 6, and one end of the connecting seat 8 extends to the outside of the driving cavity 6 and is fixedly connected to the movable plate 9. Servo motors 10 are fixedly provided at the front and rear ends of both sides of the outside of the processing table 1. The output shaft of the servo motor 10 extends into the inside of the driving cavity 6 and is fixedly connected to the lead screw 7, so as to facilitate the adjustment of the position of the first forming mold 11 by means of the lead screw 7.

[0025] Please see Figure 1 , Figure 3 and Figure 4The upper end of the movable plate 9 is provided with a first forming mold 11. The front and rear ends of the first forming mold 11 are fixedly provided with fixing seats 14. The interior of the fixing seats 14 and the interior of the front and rear ends of the movable plate 9 are provided with threaded holes 19. The threaded holes 19 on the fixing seats 14 correspond to the threaded holes 19 on the movable plate 9. The upper end of the fixing seat 14 is provided with a bolt 15. The lower end of the bolt 15 extends into the interior of the movable plate 9 through the threaded holes 19, so as to facilitate the fixing of the first forming mold 11 through the threaded holes 19 and the bolt 15.

[0026] Please see Figure 2 Three positioning rods 16 are provided on the outside of the first forming mold 11 located on one side of the processing table 1. The positioning rods 16 are evenly distributed. Three positioning holes 17 are provided inside the first forming mold 11 located on the other side of the processing table 1. The positioning holes 17 correspond to the positions of the positioning rods 16, so as to facilitate the position detection of the replaced first forming mold 11 through the positioning holes 17 and the positioning rods 16.

[0027] Working principle: In use, the operator rotates bolt 15, causing it to move upward through the threaded hole 19 until it disengages. Then, the new first forming mold 11 is placed on the moving plate 9, aligning the threaded hole 19 on the fixed seat 14 with the threaded hole 19 on the moving plate 9. Bolt 15 is then aligned with the opening of the threaded hole 19 and inserted. Rotating bolt 15 causes it to move further into the threaded hole 19 through the thread. Simultaneously, the servo motor 10 is activated, causing its output shaft to drive the lead screw 7. The rotation of the lead screw 7 then moves the connecting seat 8 within the drive cavity 6. The movable plate 9, which is fixedly connected to the connecting seat 8, moves together. During the movement of the first molding mold 11, the movable plate 9 slides on the limiting strip 12 until the movable plate 9 and the first molding mold 11 are moved to a suitable position. At this time, the operator observes the position of the movable plate 9 on the corresponding scale line 13. If the positions of the two first molding molds 11 are corresponding, the positioning rod 16 on one side of the first molding mold 11 will enter the interior of the positioning hole 17 on the other side of the first molding mold 11 until the two first molding molds 11 are in contact. If the positions of the two first molding molds 11 are not corresponding, the positioning rod 16 on one side of the first molding mold 11 will abut against the other side of the first molding mold 11.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A sheet metal bending and positioning structure, comprising a processing table (1), characterized in that: A slide groove (5) is provided at the center of the processing table (1). The slide groove (5) has an open structure. Both the front and rear ends of the processing table (1) are provided with driving cavities (6). The driving cavities (6) are connected to the slide groove (5). A lead screw (7) is provided inside the driving cavity (6). Both sides of the lead screw (7) are rotatably connected to the inner wall of the driving cavity (6). Limiting strips (12) are fixedly provided at the front and rear ends of the lower end of the slide groove (5). The limiting strips (12) are symmetrically arranged. A scale line (13) is provided at the upper end of the limiting strip (12). Movable plates (9) are provided on both sides of the outside of the limiting strip (12). The movable plates (9) slide and limit the limiting strip (12), and the movable plates (9) are parallel to the scale line (13).

2. The sheet metal bending and positioning structure according to claim 1, characterized in that: The lead screw (7) is sleeved with a connecting seat (8), which slides and limits the drive cavity (6). One end of the connecting seat (8) extends to the outside of the drive cavity (6) and is fixedly connected to the moving plate (9). The front and rear ends of both sides of the processing table (1) are fixedly provided with servo motors (10). The output shaft of the servo motor (10) extends to the inside of the drive cavity (6) and is fixedly connected to the lead screw (7).

3. The sheet metal bending and positioning structure according to claim 2, characterized in that: The upper end of the movable plate (9) is provided with a first forming mold (11). The front and rear ends of the first forming mold (11) are fixedly provided with a fixed seat (14). The interior of the fixed seat (14) and the interior of the front and rear ends of the movable plate (9) are provided with threaded holes (19). The threaded holes (19) on the fixed seat (14) correspond to the threaded holes (19) on the movable plate (9).

4. The sheet metal bending and positioning structure according to claim 3, characterized in that: The upper end of the fixed base (14) is provided with a bolt (15), and the lower end of the bolt (15) extends into the interior of the movable plate (9) through a threaded hole (19).

5. The sheet metal bending and positioning structure according to claim 4, characterized in that: Three positioning rods (16) are provided on the outside of the first molding mold (11) located on one side of the processing table (1). The positioning rods (16) are evenly distributed. Three positioning holes (17) are provided inside the first molding mold (11) located on the other side of the processing table (1). The positioning holes (17) correspond to the positions of the positioning rods (16).

6. The sheet metal bending and positioning structure according to claim 5, characterized in that: A fixed frame (3) is fixedly installed at the center of the upper end of the processing table (1). A hydraulic telescopic device (4) is fixedly installed at both the front and rear ends of the upper end of the fixed frame (3). The telescopic end of the hydraulic telescopic device (4) extends to the lower part of the fixed frame (3). A second forming mold (18) is fixedly installed at the lower end of the telescopic end of the hydraulic telescopic device (4).

7. The sheet metal bending and positioning structure according to claim 6, characterized in that: Support rods (2) are fixedly installed at the four corners of the lower end of the processing table (1).

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