Workpiece positioning structure of bending machine

Abstract

The utility model discloses a workpiece positioning structure of a bending machine, which relates to the technical field of bending machines and comprises a base and a back plate, the back plate is arranged above the base, a first sliding groove is arranged on one side of the back plate, and a hand wheel is arranged above the back plate. According to the workpiece positioning structure of the bending machine, after the back plate is adjusted to a certain position, the threaded shaft rotates through the hand wheel, and the threaded shaft drives the sliding block in threaded connection with the threaded shaft and drives the pressing plate fixedly connected with the threaded shaft to ascend and descend, so that the lower end of the pressing plate is close to the two sides of the workpiece, and the two sides of the workpiece are pressed and fixed through the pressing plate; and a rubber cushion plate is additionally designed at the bottom of the pressing plate, so that the anti-skid effect can be achieved to a certain extent, the situation that the workpiece deviates and runs in the machining process is further ensured, the workpiece limiting and positioning effects can be achieved through the pressing plate, and the machining efficiency is improved. The stability in the workpiece machining process is improved, and the workpiece machining quality is ensured.

Description

Technical Field

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

[0002] A bending machine refers to a hydraulic bending machine, which includes a support, a worktable, and a clamping plate. When powered on, it generates an attractive force on the pressure plate, thereby clamping the thin plate between the pressure plate and the base. Due to the use of electromagnetic clamping, the pressure plate can be made into various workpiece requirements, and workpieces with side walls can be processed. The bending machine can meet the needs of various workpieces by changing the bending machine mold, but it is difficult to operate the mold precisely.

[0003] However, the existing workpiece positioning structure for bending machines still has some problems in use:

[0004] An existing auxiliary positioning bending machine, such as application number CN202223033058.5, includes a support and a worktable. The upper surface of the support is provided with a lower die, the lower surface of the worktable is provided with an upper die, the upper surface of the support is provided with a connecting plate, the side of the connecting plate is provided with a groove, the inner rear wall of the groove is rotatably connected with a bidirectional threaded rod, the surface of the bidirectional threaded rod is threadedly connected with a movable sleeve, and the side of the movable sleeve is fixedly connected with a right-angle rod.

[0005] However, in the above-mentioned patented technology, when positioning the workpiece of the bending machine, the workpiece is clamped and positioned from both ends of the die base. However, when the workpiece is pressurized by the upper die base, the workpiece will warp on both sides. The lack of positioning structure on both sides of the workpiece makes it easy for the workpiece to run or shift, which in turn leads to the workpiece not being formed and easily results in quality differences, thus affecting the efficiency of workpiece processing.

[0006] Therefore, we propose a workpiece positioning structure for bending machines to solve the problems mentioned above. Utility Model Content

[0007] The purpose of this utility model is to provide a workpiece positioning structure for a bending machine, in order to solve the problem mentioned in the background art that when positioning a workpiece for a bending machine, the workpiece is clamped and positioned from both ends of the die base, but when the workpiece is pressurized by the upper die base, the two sides of the workpiece will warp. The lack of positioning structure on both sides of the workpiece makes the workpiece prone to running and shifting, which in turn leads to the workpiece not forming properly, easily resulting in quality differences, and thus affecting the efficiency of workpiece processing.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a workpiece positioning structure for a bending machine, comprising a base and a back plate:

[0009] A back plate is provided above the base, a first sliding groove is provided on one side of the back plate, a handwheel is provided above the back plate, a threaded shaft is fixed at the bottom of the handwheel, and the threaded shaft is connected to the inner bottom of the first sliding groove in a bearing manner, and a fastening nut is threadedly connected to the outer surface of the threaded shaft.

[0010] The outer surface of the threaded shaft is threaded with a slider, and the slider is in close sliding connection with the first groove. A pressure plate is fixed on one side of the slider, and a rubber pad is fixed on the lower end face of the pressure plate.

[0011] By adopting the above technical solution, the threaded shaft can be manually driven to rotate, which can drive the pressure plate on one side of the back plate to move up and down. The pressure plate can apply a certain downward pressure to both sides of the workpiece, so that the workpiece can be prevented from warping during pressure forming, ensuring workpiece stability and improving workpiece forming quality.

[0012] Preferably, a mold base is provided in the middle of the base, a fixing plate is fixed above the base, and a guide rail is fixed on one side of the fixing plate.

[0013] The above technical solution incorporates a guide rail on the base, which allows the fixed seat to move horizontally, thereby increasing the limiting effect of movement and ensuring that the pressure plate can be accurately moved to the workpiece processing position.

[0014] Preferably, an electric push rod is fixed to one side of the fixed plate, and a fixed seat is fixed to the top of the electric push rod, with the fixed seat slidably connected to the guide rail.

[0015] By adopting the above technical solution, the fixed base is driven to move horizontally along the guide rail by an electric push rod, which can be easily and automatically adjusted according to processing requirements in order to meet processing needs.

[0016] Preferably, a first connecting hole is provided on one side of the fixing seat, an adjusting rod passes through the middle of the fixing seat, a second connecting hole is provided on the outer surface of the adjusting rod, and six sets of the second connecting holes are provided. A cylindrical pin passes through the middle of the first connecting hole and the second connecting hole.

[0017] The above technical solution involves inserting an adjusting rod through the middle of the fixed base, and providing a second connecting hole on the outer surface of the adjusting rod that corresponds to the first connecting hole on the outer surface of the fixed base. This allows for easy adjustment of the relative position of the adjusting rod according to the corresponding position of the connecting hole, thereby ensuring precise positioning of the workpiece and assisting in accurate processing of the workpiece.

[0018] Preferably, the base has a second sliding groove inside, and the second sliding groove is I-shaped. A servo motor is bolted to one side of the base, and a reverse screw is movably connected to the output end of the servo motor.

[0019] By adopting the above technical solution, a reverse screw is designed inside the base, and the reverse screw is driven to rotate by a servo motor. The reverse screw can move relative to or in opposite directions, thereby achieving a clamping effect.

[0020] Preferably, a connecting plate is slidably connected to the middle of the second slide groove, and the connecting plate is designed in an I-shape corresponding to the second slide groove. A support rod is fixed to one side of the connecting plate, and a limit block is fixed to one end of the support rod. Two sets of limit blocks are symmetrically arranged along the base.

[0021] By adopting the above technical solution, the rotation of the reverse screw can drive the connecting plate to slide along the second slide groove. The connecting plate drives the support rod to move, and the support rod drives the limit block to move. In this way, the limit block can clamp and fix both sides of the mold base, so as to further increase the stability of the workpiece during the processing and ensure the processing quality of the workpiece.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] 1. After the back plate is adjusted to a certain position, the handwheel threaded shaft is rotated. The threaded shaft drives the slider connected to it and the pressure plate fixedly connected to it to rise and fall, so that the lower end of the pressure plate is close to the two sides of the workpiece. This allows the pressure plate to press and fix the two sides of the workpiece, thereby preventing the workpiece from warping during bending. A rubber pad is added to the bottom of the pressure plate, which can play a certain role in anti-slip. This further ensures that the workpiece does not deviate or run during processing. The pressure plate can limit and position the workpiece, improve the stability of the workpiece during processing, and ensure the processing quality of the workpiece.

[0024] 2. A guide rail is provided above the base. An electric push rod can push the fixed seat to move horizontally along the guide rail. An adjusting rod runs through the middle of the fixed seat. By adjusting the position of the adjusting rod horizontally, the pressure plate can be moved to the two sides of the workpiece to fix the two sides of the workpiece. The adjustable rod can also be used to easily adjust the auxiliary positioning position according to different workpieces, so as to meet the processing needs of different workpieces, improve the efficiency of use, and increase the processing effect. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the external structure of this utility model from the front view;

[0026] Figure 2 This is a schematic cross-sectional view of the main body of this utility model;

[0027] Figure 3 This is a schematic diagram of the connection structure between the fixed base and the guide rail of this utility model;

[0028] Figure 4This is a schematic diagram of the connection structure between the pressure plate and the back plate of this utility model;

[0029] Figure 5 This is a schematic diagram of the connection structure between the adjusting rod and the fixed base of this utility model.

[0030] In the diagram: 1. Base; 2. Mold base; 3. Fixing plate; 4. Guide rail; 5. Electric push rod; 6. Fixing seat; 7. First connecting hole; 8. Adjusting rod; 9. Second connecting hole; 10. Cylindrical pin; 11. Back plate; 12. First slide groove; 13. Handwheel; 14. Threaded shaft; 15. Fastening nut; 16. Slider; 17. Pressure plate; 18. Rubber pad; 19. Second slide groove; 20. Servo motor; 21. Reverse screw; 22. Connecting plate; 23. Support rod; 24. Limiting block. Detailed Implementation

[0031] 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.

[0032] To address the problem in existing technologies where the lack of positioning structures on both sides of the workpiece makes it prone to movement and displacement, the following solution is disclosed. Please refer to [link / reference needed]. Figures 1-5 This utility model provides a technical solution: a workpiece positioning structure for a bending machine, including a base 1 and a back plate 11. The back plate 11 is provided above the base 1. A first sliding groove 12 is provided on one side of the back plate 11. A handwheel 13 is provided above the back plate 11. A threaded shaft 14 is fixed to the bottom of the handwheel 13. The threaded shaft 14 is connected to the inner bottom of the first sliding groove 12 in a bearing manner. A fastening nut 15 is threadedly connected to the outer surface of the threaded shaft 14. A slider 16 is threadedly connected to the outer surface of the threaded shaft 14. The slider 16 is in a close sliding connection with the first sliding groove 12. A pressure plate 17 is fixed to one side of the slider 16. A rubber pad 18 is fixed to the lower end face of the pressure plate 17. After the back plate 11 is adjusted to a certain position, the handwheel 13 is manually turned. The handwheel 13 drives the threaded shaft 14 in the middle of the first slide groove 12 to rotate. The threaded shaft 14 drives the slider 16, which is threaded to it, to move up and down along the middle of the first slide groove 12 in the direction of rotation of the threaded shaft 14. The slider 16 drives the pressure plate 17, which is fixedly connected to it, to move up and down, so that the lower end of the pressure plate 17 is close to the two sides of the workpiece. After the pressure plate 17 is adjusted, the threaded shaft 14 is fastened to the back plate 11 by the fastening nut 15, so as to fix the position of the pressure plate 17. A rubber pad 18 is added to the bottom of the pressure plate 17, which can play a certain role in anti-slip effect, further ensuring that the workpiece does not deviate or run during processing. In this way, the pressure plate 17 can provide the workpiece with the effect of limiting and positioning, improving the stability of the workpiece during processing and ensuring the processing quality of the workpiece.

[0033] A mold base 2 is provided in the middle of the base 1, a fixing plate 3 is fixed on the top of the base 1, and a guide rail 4 is fixed on one side of the fixing plate 3; an electric push rod 5 is fixed on one side of the fixing plate 3, and a fixing seat 6 is fixed at the top of the electric push rod 5, and the fixing seat 6 is slidably connected to the guide rail 4; a first connecting hole 7 is provided on one side of the fixing seat 6, an adjusting rod 8 passes through the middle of the fixing seat 6, a second connecting hole 9 is provided on the outer surface of the adjusting rod 8, and six sets of the second connecting holes 9 are provided; a cylindrical pin 10 passes through the middle of the first connecting hole 7 and the second connecting hole 9. A guide rail 4 is provided above the base 1, and a fixed seat 6 is slidably connected above the guide rail 4. An electric push rod 5 is connected between the fixed seat 6 and the fixed plate 3. The electric push rod 5 can push the fixed seat 6 to move horizontally along the guide rail 4. An adjusting rod 8 is inserted through the middle of the fixed seat 6. The outer surface of the adjusting rod 8 is fitted with a second connecting hole 9 corresponding to the first connecting hole 7 on the outer surface of the fixed seat 6. By designing six sets of second connecting holes 9, the position of the adjusting rod 8 can be adjusted according to the processing requirements of the workpiece. The adjusted adjusting rod 8 is then fixed by passing a cylindrical pin 10 through the middle of the two sets of connecting holes. This facilitates the adjustment of the auxiliary positioning position for different workpieces, meets the processing requirements of different workpieces, improves efficiency, and enhances processing results.

[0034] The base 1 has a second slide groove 19 inside, and the second slide groove 19 is I-shaped. A servo motor 20 is bolted to one side of the base 1, and a reverse screw 21 is movably connected to the output end of the servo motor 20. A connecting plate 22 is slidably connected to the middle of the second slide groove 19, and the connecting plate 22 is designed to be I-shaped corresponding to the second slide groove 19. A support rod 23 is fixed to one side of the connecting plate 22, and a limit block 24 is fixed to one end of the support rod 23. Two sets of limit blocks 24 are symmetrically arranged along the base 1. The servo motor 20 drives the reverse screw 21 inside the base 1 to rotate. The reverse screw 21 drives the connecting plate 22 to slide horizontally along the middle of the second slide groove 19, and drives the support rod 23 on one side of the connecting plate 22 to move, thereby causing the limiting block 24 to move. The limiting block 24 corresponds to the hole in the mold base 2, so that the limiting block 24 is close to both ends of the mold base 2, and can position and clamp the workpiece from both ends of the mold base 2, so as to further ensure the stability of the workpiece during the bending process, improve the bending quality, and meet the bending processing requirements of the workpiece.

[0035] Working principle: For this type of workpiece positioning structure of bending machine, firstly, the workpiece is placed horizontally above the die base 2. The fixed seat 6 is moved by the electric push rod 5. After the fixed seat 6 moves to a certain position, the adjusting rod 8 in the fixed seat 6 is adjusted so that the back plate 11 at its top moves closer to the workpiece position. The height of the pressure plate 17 on the back plate 11 is adjusted manually so that the pressure plate 17 can apply a certain downward pressure to both sides of the workpiece, ensuring that the sides of the workpiece will not lift up during the processing. Limiting blocks 24 are set on both sides of the die base 2. The limiting blocks 24 can provide a limiting effect at both ends of the workpiece to further ensure the stability of the workpiece during the bending process, improve the bending quality, and meet the workpiece bending processing requirements.

[0036] This completes a series of tasks. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0037] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A workpiece positioning structure for a bending machine, comprising a base (1) and a back plate (11), characterized in that: A back plate (11) is provided above the base (1). A first groove (12) is provided on one side of the back plate (11). A handwheel (13) is provided above the back plate (11). A threaded shaft (14) is fixed at the bottom of the handwheel (13). The threaded shaft (14) is connected to the inner bottom of the first groove (12) in a bearing manner. A fastening nut (15) is threadedly connected to the outer surface of the threaded shaft (14). The outer surface of the threaded shaft (14) is threaded with a slider (16), and the slider (16) is in close sliding connection with the first groove (12). A pressure plate (17) is fixed on one side of the slider (16), and a rubber pad (18) is fixed on the lower end face of the pressure plate (17).

2. The workpiece positioning structure for a bending machine according to claim 1, characterized in that: A mold base (2) is provided in the middle of the base (1), a fixing plate (3) is fixed above the base (1), and a guide rail (4) is fixed on one side of the fixing plate (3).

3. The workpiece positioning structure for a bending machine according to claim 2, characterized in that: An electric push rod (5) is fixed on one side of the fixed plate (3), and a fixed seat (6) is fixed at the top of the electric push rod (5), and the fixed seat (6) is slidably connected to the guide rail (4).

4. The workpiece positioning structure for a bending machine according to claim 3, characterized in that: The fixing seat (6) has a first connecting hole (7) on one side, and an adjusting rod (8) passes through the middle of the fixing seat (6). The outer surface of the adjusting rod (8) has a second connecting hole (9), and there are six sets of the second connecting holes (9). A cylindrical pin (10) passes through the middle of the first connecting hole (7) and the second connecting hole (9).

5. The workpiece positioning structure for a bending machine according to claim 1, characterized in that: The base (1) has a second sliding groove (19) inside, and the second sliding groove (19) is I-shaped. A servo motor (20) is bolted to one side of the base (1), and a reverse screw (21) is movably connected to the output end of the servo motor (20).

6. The workpiece positioning structure for a bending machine according to claim 5, characterized in that: A connecting plate (22) is slidably connected to the middle of the second slide groove (19), and the connecting plate (22) and the second slide groove (19) are designed in the shape of an I-beam. A support rod (23) is fixed on one side of the connecting plate (22), and a limit block (24) is fixed at one end of the support rod (23). Two sets of limit blocks (24) are symmetrically arranged along the base (1).

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