Bending tool capable of quickly positioning workpiece

Abstract

The utility model discloses a bending tool capable of quickly positioning a workpiece, and particularly relates to the field of workpiece machining, the bending tool comprises a mounting base, two sides of the mounting base are respectively provided with a sliding chute, a driving device is arranged between the two sliding chutes, the output end of the driving device is fixedly connected with a fixing frame, and the fixing frame is fixedly connected with the mounting base. A plurality of mounting grooves are formed in the fixing frame at equal intervals, a pre-pressing device is arranged in each mounting groove, and a plurality of fixing grooves are formed in the upper end face of the mounting base at equal intervals. When in use, the device is simple to operate, the handle driving device is rotated to drive the fixing frame to move, a workpiece can be quickly and accurately positioned below the bending knife, when the workpiece moves, the connecting ball rotates in the fixing sleeve to prevent surface abrasion, and when the workpiece is bent, the pressing plate descends to drive the pre-pressing device to press the workpiece tightly to prevent edge prying, so that the workpiece can be quickly and accurately positioned. Meanwhile, the workpiece enables the connecting ball to compress the spring to move downwards, bending is not affected, the stability of the workpiece is guaranteed through double guarantees, and the bending precision and the machining quality are improved.

Description

Technical Field

[0001] This utility model relates to the field of workpiece processing, and more specifically, to a bending fixture that can quickly position a workpiece. Background Technology

[0002] In the field of metal processing, bending is a common process used to bend metal sheets or profiles into desired shapes. With the continuous development of the manufacturing industry, the requirements for the precision, efficiency, and quality of workpiece bending are becoming increasingly stringent.

[0003] Chinese utility model patent CN221537723U discloses a rapid positioning and bending mechanism for sheet metal parts. This device, through the coordinated use of braking components, limiting components, and other related components, has a simple overall structure and is easy to operate. It can quickly and stably position and fix sheet metal parts during bending, preventing warping. It also facilitates continuous multi-segment bending, effectively improving bending accuracy and efficiency. However, when moving the workpiece to the bending position, the workpiece is prone to friction damage against the tooling surface. Furthermore, when bending workpieces whose surface is lower than its baffle, the rollers will abut against the baffle, failing to effectively position and fix the workpiece, thus still resulting in warping during bending.

[0004] Therefore, it is necessary to redesign a bending fixture that can quickly position the workpiece to address the above-mentioned problems. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the embodiments of this utility model provide a bending fixture that can quickly position a workpiece.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A bending fixture for rapid workpiece positioning includes a mounting base. Slide grooves are formed on both sides of the mounting base, and a driving device is provided between the two slide grooves. A fixed frame is fixedly connected to the output end of the driving device. Multiple mounting slots are equidistantly formed on the fixed frame, and a pre-pressing device is provided in each mounting slot. Multiple fixing slots are equidistantly formed on the upper surface of the mounting base, and an anti-wear device is provided in each fixing slot. A cutting groove is formed on the upper surface of the mounting base. A mounting frame is fixedly mounted on one side of the mounting base. A hydraulic telescopic cylinder is fixedly mounted on the upper surface of the mounting frame. The output shaft of the hydraulic telescopic cylinder passes through the upper surface of the mounting frame and extends to mount a mounting plate. A bending knife is fixedly mounted on the bottom end of the mounting plate, and the position of the bending knife corresponds to the position of the cutting groove. A pressure plate is fixedly mounted on the bottom end of the mounting plate.

[0008] In a preferred embodiment, the driving device includes two ball screws, which are respectively mounted on the inner wall of the slide groove via bearings. Each ball screw is connected to a slider via a screw sleeve, and the two sliders are slidably connected in the corresponding slide grooves. A connecting block is fixedly installed on the upper end face of each slider, and a fixing bracket is fixedly installed between the two connecting blocks. One end of each of the two ball screws passes through the inner wall of the corresponding slide groove and extends outward together to be mounted with a synchronization component.

[0009] In a preferred embodiment, the synchronization component includes a first synchronization pulley and a second synchronization pulley, and the first synchronization pulley and the second synchronization pulley are respectively fixedly installed at one end of a ball screw in a corresponding position, and a synchronization belt is installed between the first synchronization pulley and the second synchronization pulley.

[0010] In a preferred embodiment, the pre-compression device includes a pressure rod, which is slidably connected in the mounting groove. A load-bearing block is fixedly installed on the upper end face of the pressure rod, and a first spring is fixedly installed on the bottom end of the load-bearing block. The first spring is fixedly connected to the upper end face of the fixing frame, and a rubber pad is fixedly installed on the bottom end of the pressure rod.

[0011] In a preferred embodiment, the wear-resistant device includes a second spring, which is fixedly connected in a fixing groove. A fixing sleeve is fixedly installed at one end of the second spring, and the fixing sleeve is slidably connected in the fixing groove. A connecting ball is rotatably installed in the fixing sleeve.

[0012] In a preferred embodiment, a handle is fixedly mounted on one side of the first synchronizing pulley.

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

[0014] 1. This utility model, by setting up a driving device, an anti-wear device, etc., drives the driving device to move the fixed position by rotating the handle, which can conveniently and quickly move the workpiece under the bending knife to achieve precise positioning. At the same time, during the movement of the workpiece, the connecting ball rotates in the fixed sleeve to avoid direct contact between the workpiece surface and the mounting base, effectively preventing workpiece surface wear and ensuring the appearance quality of the workpiece.

[0015] 2. By setting up multiple pre-pressing devices, when bending, the pressure plate descends, which not only drives the pressure rod of the pre-pressing device to press the rubber pad tightly against the workpiece to prevent prying during bending, but also causes the connecting ball to compress the second spring and move down, thus avoiding its interference with the bending operation. This dual action ensures the stability of the workpiece, makes the bending process smooth, and improves the bending accuracy and processing quality.

[0016] In summary, this utility model is simple to operate. By rotating the handle to drive the fixed frame, the workpiece can be quickly and accurately positioned under the bending knife. When the workpiece moves, the connecting ball rotates in the fixed sleeve to prevent surface wear. During bending, the pressure plate descends to drive the pre-pressing device to press the workpiece and prevent prying. At the same time, the workpiece causes the connecting ball to compress the spring and move down without affecting the bending. This double protection ensures the stability of the workpiece and improves bending accuracy and processing quality. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a bending fixture that can quickly position a workpiece according to the present invention.

[0018] Figure 2 This is a schematic diagram of the driving device of a bending fixture that can quickly position a workpiece according to the present invention.

[0019] Figure 3 This is a schematic diagram of the synchronization component of a bending fixture that can quickly position a workpiece, as proposed in this utility model.

[0020] Figure 4 This is a schematic diagram of the pre-compression device of a bending fixture that can quickly position a workpiece, as proposed in this utility model.

[0021] Figure 5 This is a partial schematic diagram of the anti-wear device of a bending fixture that can quickly position a workpiece, as proposed in this utility model.

[0022] In the diagram: 1. Mounting base; 2. Mounting bracket; 3. Hydraulic telescopic cylinder; 4. Mounting plate; 5. Bending knife; 6. Slide groove; 7. Ball screw; 8. Slider; 9. Handle; 10. Connecting block; 11. Fixing bracket; 12. First synchronous pulley; 13. Second synchronous pulley; 14. Synchronous belt; 15. Knife groove; 16. Mounting groove; 17. Pressure rod; 18. First spring; 19. Load-bearing block; 20. Rubber pad; 21. Fixing groove; 22. Second spring; 23. Fixing sleeve; 24. Connecting ball; 25. Pressure plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Reference Figure 1-5A bending fixture for quickly positioning workpieces includes a mounting base 1. Slide grooves 6 are respectively provided on both sides of the mounting base 1. A driving device is provided between the two slide grooves 6. A fixed frame 11 is fixedly connected to the output end of the driving device. Multiple mounting slots 16 are equidistantly provided on the fixed frame 11. Each mounting slot 16 is equipped with a pre-pressing device. Multiple fixing slots 21 are equidistantly provided on the upper surface of the mounting base 1. Each fixing slot 21 is equipped with an anti-wear device. A knife groove 15 is provided on the upper surface of the mounting base 1. A mounting frame 2 is fixedly installed on one side of the mounting base 1. A hydraulic telescopic cylinder 3 is fixedly installed on the upper surface of the mounting frame 2. The output shaft of the hydraulic telescopic cylinder 3 passes through the upper surface of the mounting frame 2 and extends to install a mounting plate 4. A bending knife 5 is fixedly installed at the bottom end of the mounting plate 4, and the position of the bending knife 5 corresponds to the position of the knife groove 15. A pressure plate 25 is fixedly installed at the bottom end of the mounting plate 4.

[0025] The drive device includes two ball screws 7, which are respectively mounted on the inner wall of the slide groove 6 via bearings. Each ball screw 7 is connected to a slider 8 via a screw sleeve, and the two sliders 8 are slidably connected in the corresponding slide grooves 6. A connecting block 10 is fixedly installed on the upper end face of each slider 8, and a fixing bracket 11 is fixedly installed between the two connecting blocks 10. One end of each of the two ball screws 7 passes through the inner wall of the corresponding slide groove 6 and extends outward together to be fitted with a synchronization component.

[0026] The synchronization assembly includes a first synchronization pulley 12 and a second synchronization pulley 13, which are respectively fixedly installed at one end of a ball screw 7 in corresponding positions. A synchronization belt 14 is installed between the first synchronization pulley 12 and the second synchronization pulley 13. When the first synchronization pulley 12 rotates, it can drive the second synchronization pulley 13 to rotate synchronously through the synchronization belt 14.

[0027] The pre-compression device includes a pressure rod 17, which is slidably connected in the mounting groove 16. A bearing block 19 is fixedly installed on the upper end face of the pressure rod 17, and a first spring 18 is fixedly installed on the bottom end of the bearing block 19. The first spring 18 is fixedly connected to the upper end face of the fixing frame 11. A rubber pad 20 is fixedly installed on the bottom end of the pressure rod 17. The rubber pad 20 can prevent the pressure rod 17 from damaging the workpiece.

[0028] The wear-resistant device includes a second spring 22, which is fixedly connected in the fixing groove 21. A fixing sleeve 23 is fixedly installed at one end of the second spring 22, and the fixing sleeve 23 is slidably connected in the fixing groove 21. A connecting ball 24 is rotatably installed in the fixing sleeve 23, and the workpiece can move on the connecting ball 24, which can prevent the workpiece from moving on the surface of the mounting base 1 and causing wear on the workpiece.

[0029] A handle 9 is fixedly installed on one side of the first synchronous pulley 12. By rotating the handle 9, the first synchronous pulley 12 can be driven to rotate.

[0030] When using this utility model, first place the workpiece to be bent on the mounting base 1, then rotate the handle 9 on one side of the first synchronous wheel 12. The handle 9 drives the first synchronous wheel 12 to rotate, and then the synchronous belt 14 drives the second synchronous wheel 13 to rotate synchronously, thereby driving the two ball screws 7 to rotate. When the ball screws 7 are rotated, the screw sleeve drives the slider 8 to slide in the slide groove 6. The connecting block 10 on the slider 8 drives the fixed frame 11 to move, thereby driving the workpiece to move below the bending knife 5.

[0031] When the workpiece is placed on the mounting base 1 and follows the fixing frame 11, the workpiece contacts the connecting ball 24 in the fixing sleeve 23. The workpiece can move on multiple connecting balls 24. When the workpiece moves, the connecting ball 24 can rotate in the fixing sleeve 23 to prevent the surface of the workpiece from directly contacting the mounting base 1 and causing wear on the workpiece surface.

[0032] When the workpiece is below the bending knife 5, the hydraulic telescopic cylinder 3 is activated. The output shaft of the hydraulic telescopic cylinder 3 pushes the mounting plate 4 downward. The bending knife 5 at the bottom of the mounting plate 4 descends with the mounting plate 4. Since the position of the bending knife 5 corresponds to the knife groove 15, the bending knife 5 inserts into the knife groove 15 to perform a bending operation on the workpiece. At the same time, the pressure plate 25 at the bottom of the mounting plate 4 also descends with the mounting plate 4. The descent of the pressure plate 25 can compress the bearing block 19. Subsequently, the bearing force drives the pressure rod 17 to move downward and compress the first spring 18 until the pressure rod 17 drives the rubber pad 20 to press the workpiece tightly, preventing the workpiece from prying during bending.

[0033] When the pressure rod 17 is compressing the fixed workpiece, the workpiece can synchronously compress the connecting ball 24, so that the connecting ball 24 can drive the fixing sleeve 23 to compress the second spring 22, and then the connecting ball 24 can move into the fixing groove 21 to prevent the connecting ball 24 from affecting the bending of the workpiece.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bending fixture for quickly positioning a workpiece, comprising a mounting base (1), characterized in that: The mounting base (1) has sliding grooves (6) on both sides, and a driving device is provided between the two sliding grooves (6). A fixing frame (11) is fixedly connected to the output end of the driving device. Multiple mounting slots (16) are equally spaced on the fixing frame (11), and a pre-pressing device is provided in each mounting slot (16). Multiple fixing slots (21) are equally spaced on the upper surface of the mounting base (1), and an anti-wear device is provided in each fixing slot (21). A knife groove (15) is provided on the upper end face. A mounting bracket (2) is fixedly installed on one side of the mounting base (1). A hydraulic telescopic cylinder (3) is fixedly installed on the upper end face of the mounting bracket (2). The output shaft of the hydraulic telescopic cylinder (3) passes through the upper end face of the mounting bracket (2) and extends to install a mounting plate (4). A bending knife (5) is fixedly installed at the bottom end of the mounting plate (4), and the position of the bending knife (5) corresponds to the position of the knife groove (15). A pressure plate (25) is fixedly installed at the bottom end of the mounting plate (4).

2. The bending fixture for rapid workpiece positioning according to claim 1, characterized in that: The drive device includes two ball screws (7), and the two ball screws (7) are respectively mounted on the inner sidewall of the slide groove (6) by bearings. Each ball screw (7) is connected to a slider (8) by a screw sleeve, and the two sliders (8) are respectively slidably connected in the corresponding slide groove (6). A connecting block (10) is fixedly installed on the upper end face of each slider (8), and a fixing frame (11) is fixedly installed between the two connecting blocks (10). One end of each of the two ball screws (7) passes through the inner sidewall of the corresponding slide groove (6) and extends outward together to install a synchronization component.

3. A bending fixture for quickly positioning a workpiece according to claim 2, characterized in that: The synchronization component includes a first synchronization pulley (12) and a second synchronization pulley (13), and the first synchronization pulley (12) and the second synchronization pulley (13) are respectively fixedly installed at one end of a ball screw (7) in a corresponding position. A synchronization belt (14) is installed between the first synchronization pulley (12) and the second synchronization pulley (13).

4. A bending fixture for rapid workpiece positioning according to claim 1, characterized in that: The pre-compression device includes a pressure rod (17), which is slidably connected in the mounting groove (16). A load-bearing block (19) is fixedly installed on the upper end face of the pressure rod (17), and a first spring (18) is fixedly installed on the bottom end of the load-bearing block (19). The first spring (18) is fixedly connected to the upper end face of the fixing frame (11), and a rubber pad (20) is fixedly installed on the bottom end of the pressure rod (17).

5. A bending fixture for rapid workpiece positioning according to claim 1, characterized in that: The wear-resistant device includes a second spring (22), which is fixedly connected in a fixed groove (21). A fixed sleeve (23) is fixedly installed at one end of the second spring (22), and the fixed sleeve (23) is slidably connected in the fixed groove (21). A connecting ball (24) is rotatably installed in the fixed sleeve (23).

6. A bending fixture for quickly positioning a workpiece according to claim 3, characterized in that: A handle (9) is fixedly installed on one side of the first synchronous pulley (12).

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