Auxiliary positioning device for punching machine

Abstract

The utility model discloses an auxiliary positioning device for a punching machine, which relates to the technical field of punching machine processing and comprises a positioning table, a supporting plate is fixedly connected to the center of the top of the positioning table, two supporting blocks are fixedly connected to the top of the positioning table and positioned on two sides of the supporting plate, and driving mechanisms are symmetrically mounted on two sides of the top of the positioning table. The three locking blocks are driven to be accurately adjusted in the sliding rails through movement of the movable frame, it is guaranteed that the positions of the locking blocks can be smoothly adjusted, and the three-position locking device meets the requirements for shapes and sizes of different workpieces. Meanwhile, rotation of the second linkage rod and the fixing block enhances the flexibility of the positioning system, so that the locking block and the fixing rod can be accurately adjusted according to the specific form of the workpiece, the positioning freedom degree of the workpiece is effectively improved, it is ensured that even if the surface of the workpiece is imperfect, accurate fixing can be achieved, deviation and skew are reduced, and the machining efficiency is improved. Therefore, the machining precision and the quality of a final product are remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of punch press processing technology, and in particular to a punch press auxiliary positioning device. Background Technology

[0002] The punch press drives the flywheel through an electric motor, which in turn drives the crankshaft to rotate through a clutch and transmission gears. The rotational motion of the crankshaft is converted into the reciprocating motion of the slide through the connecting rod. This causes the die mounted on the slide to apply pressure to the metal sheet placed on the worktable, thereby realizing the stamping process of the sheet metal, such as punching, blanking, bending, and deep drawing.

[0003] However, in the existing technology, during the continuous film punching process, due to the influence of material production process, storage and transportation, there are problems such as wavy undulations, burrs or inconsistent edge thickness on the side of the material. These unevennesses will prevent the material from fitting tightly with the positioning device during positioning, resulting in gaps or uneven force, which leads to unstable positioning. Under the action of punching pressure, the material is very easy to become skewed, which not only affects the dimensional accuracy of the product. Utility Model Content

[0004] The purpose of this invention is to solve the problems of unevenness, such as wavy undulations, burrs, or inconsistent edge thickness on the side of the material in the prior art. These unevennesses will prevent the material from fitting tightly with the positioning device during positioning, resulting in gaps or uneven force. Therefore, an auxiliary positioning device for punch press is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a punch press auxiliary positioning device, including a positioning table, a support plate fixedly connected to the center of the top of the positioning table, two support blocks fixedly connected to both sides of the support plate on the top of the positioning table, a drive mechanism symmetrically installed on both sides of the top of the positioning table, and a positioning mechanism being drivenly connected to one side of the drive mechanism.

[0006] The positioning mechanism includes a movable frame and three locking blocks. Two fixed blocks are symmetrically fixedly connected to the side wall of the movable frame, and two slide rails are fixedly connected to the center of the side wall of the movable frame. A movable frame is slidably connected to the inside of the slide rails. Two first linkage rods are rotatably connected to the inside of the movable frame. A second linkage rod is rotatably connected to the inside of the fixed blocks. A fixed rod is fixedly connected to the center of the locking blocks. One of the fixed rods is rotatably connected to the two first linkage rods, and the other two fixed rods are rotatably connected to the second linkage rod and one first linkage rod, respectively.

[0007] Preferably, the driving mechanism includes a rotating plate, the bottom of which is rotatably connected to the positioning platform, and a push rod is fixedly connected to one side of the top of the rotating plate, with a movable plate slidably connected to the surface of the push rod.

[0008] Preferably, a power rod is fixedly connected to the center of the side wall of the movable plate, and one end of the power rod is fixedly connected to the center of the side wall of the movable frame.

[0009] Preferably, a limit block is slidably connected to the outer surface of one end of the power rod, and the bottom of the limit block is fixedly connected to the top of the positioning platform.

[0010] Preferably, drive motors are fixedly installed on both sides of the bottom of the positioning platform, and the output end of the drive motor is fixedly connected to the center of the bottom of the rotating plate.

[0011] Preferably, two support blocks are slidably connected at one end of the movable frame.

[0012] Preferably, the top of the fixing rod is engaged with a limit bracket, and the bottom end of the limit bracket is located on one side of the locking block.

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

[0014] 1. In this utility model, the movement of the movable frame drives the precise adjustment of three locking blocks within the slide rail, ensuring that the locking blocks can be smoothly adjusted to adapt to different workpiece shapes and sizes. Simultaneously, the rotation of the second linkage rod and the fixed block enhances the flexibility of the positioning system, allowing the locking blocks and fixed rod to be precisely adjusted according to the specific shape of the workpiece. This effectively improves the workpiece's positioning freedom, ensuring precise fixation even if the workpiece surface is imperfect, reducing deviations and skew, thereby significantly improving processing accuracy and the quality of the final product.

[0015] 2. In this utility model, the power of the drive motor continuously drives the rotating plate to rotate, which in turn drives the push rod and the movable plate to move precisely. The rotation of the push rod drives the movable plate and the power rod to move synchronously, and the trajectory is restricted by the limit block to ensure that the movement does not exceed the predetermined range. The movable plate and the power rod perform precise reciprocating motion along the set trajectory, so that the positioning mechanism can flexibly adjust its position. When the two positioning mechanisms are close, they can accurately position the workpiece and provide stable support for processing; when the two positioning mechanisms are far apart, they provide sufficient free movement space for the workpiece, ensuring that the processing process is not interrupted and achieving the effect of efficient continuous processing. This intelligent control not only ensures the accurate positioning of the workpiece, but also effectively improves the processing efficiency and continuity. Attached Figure Description

[0016] Figure 1 This utility model provides a schematic diagram of the overall three-dimensional structure of an auxiliary positioning device for a punch press;

[0017] Figure 2 This utility model provides a top view of the auxiliary positioning device for a punch press.

[0018] Figure 3 This utility model provides a partial three-dimensional structural schematic diagram of an auxiliary positioning device for a punch press;

[0019] Figure 4 This utility model provides a three-dimensional structural diagram of the positioning mechanism in an auxiliary positioning device for a punch press.

[0020] Legend: 1. Positioning platform; 2. Drive mechanism; 21. Rotating plate; 22. Push rod; 23. Movable plate; 24. Power rod; 25. Limiting block; 3. Support plate; 4. Support block; 5. Positioning mechanism; 51. Movable frame; 52. Locking block; 53. Fixed rod; 54. First linkage rod; 55. Moving frame; 56. Limiting frame; 57. Slide rail; 58. Second linkage rod; 59. Fixed block; 6. Drive motor. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] Example 1: As Figure 1 - Figure 4 As shown, this utility model provides a punch press auxiliary positioning device, including a positioning table 1, a support plate 3 fixedly connected to the center of the top of the positioning table 1, two support blocks 4 fixedly connected to both sides of the top of the positioning table 1 on the support plate 3, a drive mechanism 2 symmetrically installed on both sides of the top of the positioning table 1, and a positioning mechanism 5 connected to one side of the drive mechanism 2.

[0024] The positioning mechanism 5 includes a movable frame 51 and three locking blocks 52. Two fixing blocks 59 are symmetrically fixedly connected to the side wall of the movable frame 51, and two slide rails 57 are fixedly connected to the center of the side wall of the movable frame 51. A movable frame 55 is slidably connected to the inner side of the slide rails 57. Two first linkage rods 54 are rotatably connected to the inner side of the movable frame 55. A second linkage rod 58 is rotatably connected to the inner side of the fixing block 59. A fixing rod 53 is fixedly connected to the middle of the locking block 52. One fixing rod 53 is rotatably connected to the two first linkage rods 54, and the other two fixing rods 53 are rotatably connected to the second linkage rod 58 and one first linkage rod 54, respectively.

[0025] The specific settings and functions of this embodiment will be described in detail below. During the processing, the workpiece will rely on the power of the drive mechanism 2 to drive the movement of the movable frame 51, thereby achieving precise positioning and fixation of the workpiece.

[0026] During its movement, the movable frame 51 synchronously changes the positions of the three locking blocks 52. These changes in the locking blocks 52 are achieved through interaction with the movable frame 55 and the first linkage rod 54 within the slide rail 57. Specifically, the movable frame 55 can slide freely within the slide rail 57, driving the first linkage rod 54 to move, thereby affecting the movement of the three locking blocks 52. This ensures smooth adjustment of the locking blocks 52 between different positions, meeting the requirements of different workpiece shapes and sizes.

[0027] Meanwhile, the relative rotation between the second linkage 58 and the fixed block 59 further increases the flexibility of the positioning system. This free-rotation mechanism allows the three locking blocks 52 to precisely adjust their positions according to the specific shape of the workpiece and positioning requirements, thereby enabling the three fixed rods 53 to apply uniform pressure to all sides of the workpiece for positioning.

[0028] Thanks to the precise design of these locking blocks 52 and linkage rods, the positioning freedom of the three fixing rods 53 is significantly improved. During the workpiece machining process, even if the sidewalls of the workpiece are not perfectly neat or have certain shape errors, the position of the locking blocks 52 can still be dynamically adjusted to ensure that the fixing rods 53 can accurately position the workpiece. This high degree of freedom positioning method greatly reduces the risk of workpiece skew and offset, effectively improving machining accuracy and finished product quality.

[0029] Example 2: Figure 2 - Figure 4 As shown, the drive mechanism 2 includes a rotating plate 21, the bottom of which is rotatably connected to the positioning platform 1. A push rod 22 is fixedly connected to one side of the top of the rotating plate 21, and a movable plate 23 is slidably connected to the surface of the push rod 22. A power rod 24 is fixedly connected to the center of the side wall of the movable plate 23, and one end of the power rod 24 is fixedly connected to the center of the side wall of the movable frame 51. A limit block 25 is slidably connected to the outer surface of one end of the power rod 24, and the bottom of the limit block 25 is fixedly connected to the top of the positioning platform 1. Drive motors 6 are fixedly installed on both sides of the bottom of the positioning platform 1, and the output end of the drive motors 6 is fixedly connected to the center of the bottom of the rotating plate 21. Two support blocks 4 are slidably connected to one end of the movable frame 51. A limit frame 56 is engaged at the top of the fixed rod 53, and the bottom end of the limit frame 56 is located on one side of the locking block 52.

[0030] The overall effect of this embodiment is that the power of the drive motor 6 continuously drives the rotating plate 21 to rotate, and the rotation of the rotating plate 21 effectively drives the push rod 22 to rotate. As the push rod 22 rotates, its position changes, and thus it applies a force during contact with the movable plate 23, causing the movable plate 23 to move. The movement of the movable plate 23 drives the power rod 24 to move synchronously. During the movement, the power rod 24 is restricted by the limiting block 25.

[0031] The limit block 25 ensures that the movement of the movable plate 23 and the power rod 24 is always controlled, preventing them from exceeding the predetermined movement trajectory. Specifically, when the movable plate 23 and the power rod 24 move, they will reciprocate left and right along a predetermined trajectory.

[0032] Using this motion trajectory, the system can flexibly control the position of the positioning mechanism 5. When the two positioning mechanisms 5 are close together, precise workpiece positioning can be achieved, providing stable support for subsequent processing operations. When the two positioning mechanisms 5 are far apart, sufficient time is provided for the workpiece to move freely. Specifically, when the positioning mechanisms 5 are far apart, they can provide a brief movement gap for the workpiece, thereby ensuring that the workpiece can be processed without interference, achieving the goal of efficient continuous processing.

[0033] The device's operation and working principle are as follows: The drive motor 6 enables the rotating plate 21 to rotate continuously. During rotation, the rotating plate 21 drives the push rod 22 to rotate as well. When the position of the push rod 22 changes, it applies a force to the movable plate 23, causing the movable plate 23 to move. When the power rod 24 moves with the movable plate 23, it is restricted by the limit block 25, ensuring that the movable plate 23 and the power rod 24 drive the movable frame 51 to move during their movement. During this process, the movable frame 51 not only changes the position of the three locking blocks 52, but also, because the movable frame 55 can slide within the slide rail 57, it drives the first linkage rod 54 to move. Simultaneously, because the second linkage rod 58 can rotate freely relative to the fixed block 59, it can adjust the position of the three locking blocks 52. This allows the three fixed rods 53 to provide greater freedom when positioning the workpiece, adapting to irregularities in the workpiece's sidewalls and ensuring that the workpiece will not be skewed or offset during the punching process.

[0034] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A punch press auxiliary positioning device, comprising a positioning table (1), a support plate (3) fixedly connected to the center of the top of the positioning table (1), and two support blocks (4) fixedly connected to both sides of the top of the positioning table (1) on the support plate (3), characterized in that: The positioning platform (1) is symmetrically equipped with drive mechanisms (2) on both sides of the top, and the positioning mechanism (5) is connected to one side of the drive mechanism (2). The positioning mechanism (5) includes a movable frame (51) and three locking blocks (52). Two fixed blocks (59) are symmetrically fixedly connected to the side wall of the movable frame (51), and two slide rails (57) are fixedly connected to the center of the side wall of the movable frame (51). A movable frame (55) is slidably connected to the inner side of the slide rails (57). Two first linkage rods (54) are rotatably connected to the inner side of the movable frame (55). A second linkage rod (58) is rotatably connected to the inner side of the fixed block (59). A fixed rod (53) is fixedly connected to the middle of the locking block (52). One of the fixed rods (53) is rotatably connected to the two first linkage rods (54), and the other two fixed rods (53) are rotatably connected to the second linkage rod (58) and one first linkage rod (54) respectively.

2. The punch press auxiliary positioning device according to claim 1, characterized in that: The drive mechanism (2) includes a rotating plate (21), the bottom of which is rotatably connected to the positioning table (1), and a push rod (22) is fixedly connected to one side of the top of the rotating plate (21), and a movable plate (23) is slidably connected to the surface of the push rod (22).

3. The punch press auxiliary positioning device according to claim 2, characterized in that: A power rod (24) is fixedly connected to the center of the side wall of the movable plate (23), and one end of the power rod (24) is fixedly connected to the center of the side wall of the movable frame (51).

4. The punch press auxiliary positioning device according to claim 3, characterized in that: A limit block (25) is slidably connected to the outer surface of one end of the power rod (24), and the bottom of the limit block (25) is fixedly connected to the top of the positioning platform (1).

5. The punch press auxiliary positioning device according to claim 1, characterized in that: The positioning platform (1) has drive motors (6) fixedly installed on both sides of its bottom. The output end of the drive motors (6) is fixedly connected to the center of the bottom of the rotating plate (21).

6. The punch press auxiliary positioning device according to claim 1, characterized in that: Two support blocks (4) are slidably connected to one end of the movable frame (51).

7. The punch press auxiliary positioning device according to claim 1, characterized in that: The top of the fixing rod (53) is engaged with the limit bracket (56), and the bottom of the limit bracket (56) is located on one side of the locking block (52).

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