Sheet metal punch forming device capable of improving punching quality

Abstract

The utility model discloses a sheet metal punch forming device capable of improving punching quality, which comprises a base frame, a fixed seat arranged at the bottom of the base frame, a bearing table arranged on the fixed seat, a pair of symmetrically distributed die holders arranged on the bearing table, mounting grooves arranged on the two die holders, a fixed die plate rotatably connected in the mounting grooves through a spring rotating shaft, and a fixed die plate rotatably connected in the fixed die plate through a spring rotating shaft. A stamping hydraulic cylinder is arranged at the top of the base frame, and a movable template is arranged at the telescopic end of the stamping hydraulic cylinder; a buffer column is arranged in the fixed seat, a buffer spring is arranged between the buffer column and the fixed seat, and the buffer column upwards extends out of the bearing table to abut against the bottoms of the two fixed mold plates; and movable side plates are symmetrically arranged on the opposite side edges of the two mold bases above the fixed mold plate. The stamping die has the advantages of stabilizing the stamping process and improving the stamping quality.

Description

TECHNICAL FIELD

[0001] The utility model relates to a sheet metal processing device, in particular to a sheet metal stamping forming device for improving stamping quality. BACKGROUND

[0002] Sheet metal processing is a kind of comprehensive cold processing technology for metal sheet, which processes sheet into parts or products with specific shape and size through cutting, bending, stamping, welding and other steps. It can meet complex design requirements, adapt to small batch or mass production, and the processed products have high mechanical strength, suitable for load-bearing scenes.

[0003] Among them, the sheet metal stamping forming process is a processing method that makes metal sheet plastic deformation or separation through mold and external force to form the required shape. The device used in the sheet metal stamping forming process integrates the stamping head, the feeding system, the hydraulic / electric driving module, uses hydraulic pressure to apply uniform pressure, so that the metal sheet obtains the required shape and size under the action of pressure, supports continuous processing, and has high forming precision.

[0004] When the stamping forming device is in use, the metal sheet is extruded by high-strength hydraulic pressure during stamping, has poor stability and is easy to deviate, which will cause errors in processing size and affect the stamping effect and quality. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a sheet metal stamping forming device for improving stamping quality. The utility model has the characteristics of stabilizing the stamping process and improving the stamping quality.

[0006] The technical scheme of the utility model: a sheet metal stamping forming device for improving stamping quality, comprising a base frame, a fixed seat is arranged at the bottom of the base frame, a bearing table is arranged on the fixed seat, a pair of symmetrically distributed mold seats are arranged on the bearing table, mounting grooves are arranged on the two mold seats, a fixed mold plate is rotatably connected in the mounting groove through a spring shaft, a stamping hydraulic cylinder is arranged at the top of the base frame, a movable mold plate is arranged at the extension end of the stamping hydraulic cylinder; a buffer column is arranged in the fixed seat, a buffer spring is arranged between the buffer column and the fixed seat, the buffer column extends upward and abuts against the bottom of the two fixed mold plates above the bearing table; a movable side plate is symmetrically arranged above the fixed mold plate at the opposite side of the two mold seats.

[0007] In the foregoing sheet metal stamping forming device for improving stamping quality, a threaded push rod and a limiting rod are arranged on the movable side plate and pass through the mold seat, the threaded push rod is rotatably connected with the movable side plate and is threadedly connected with the mold seat, and the limiting rod is fixedly connected with the movable side plate and is slidably connected with the mold seat.

[0008] The preceding metal plate stamping forming device for improving stamping quality, the die holder is provided with a jet pipe between the movable side plate and the fixed die plate, the upper portion of the jet pipe is provided with a first jet head facing the movable die plate, the lower portion of the jet pipe is provided with a second jet head facing the fixed die plate, and the outer end of the jet pipe is connected with a driving cylinder.

[0009] The preceding metal plate stamping forming device for improving stamping quality, the stamping surface of the fixed die plate is provided with a first cleaning hole, the bottom surface of the fixed die plate is provided with a second cleaning hole, the inside of the fixed die plate is provided with an airflow channel respectively communicating with the first cleaning hole and the second cleaning hole, and the bottom portion of the die holder is provided with a collecting groove corresponding to the second cleaning hole.

[0010] The preceding metal plate stamping forming device for improving stamping quality, the movable side plate is provided with an avoiding groove for the jet pipe.

[0011] The preceding metal plate stamping forming device for improving stamping quality, the side surface of the buffer column is provided with a convex strip, and the bearing table is provided with a sliding groove for the up-down sliding of the convex strip.

[0012] Compared with the prior art, the metal plate stamping forming device for improving stamping quality has the beneficial effects that:

[0013] The two movable side plates are arranged above the fixed die plate, the metal plate workpiece is arranged between the two movable side plates during stamping, the movable side plates are used for clamping and limiting the metal plate workpiece, the placement accuracy of the metal plate workpiece is ensured, the metal plate workpiece is prevented from being deviated or rotated during the pressing process, the stamping quality is improved, and the distance between the two movable side plates can be adjusted, so that the device is suitable for metal plate workpieces of different sizes.

[0014] During stamping, the movable die plate is driven by the stamping hydraulic cylinder to move downwards to the fixed die plate, the fixed die plate is subjected to pressure, and the spring shaft and the buffer spring are combined to achieve double buffering, so that the impact on the fixed die plate is reduced, the stability and safety of the movable die plate during pressing are improved, and the stamping quality is improved; after stamping is completed, the fixed die plate can be automatically turned upwards under the action of the spring shaft and the buffer spring, so as to achieve automatic demolding, reduce friction damage, and facilitate material taking.

[0015] Therefore, the metal plate stamping forming device for improving stamping quality has the characteristics of stabilizing the stamping process and improving the stamping quality. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 is a structural schematic diagram of the utility model.

[0017] Fig. 2 is a schematic diagram of the fixed die plate pressing of the utility model.

[0018] The marks in the drawings are: 1, base frame; 11, fixed seat; 12, buffer column; 13, buffer spring; 14, convex strip; 2, bearing table; 21, die seat; 22, mounting groove; 23, spring rotating shaft; 24, fixed die plate; 25, stamping hydraulic cylinder; 26, movable die plate; 27, sliding groove; 3, movable side plate; 31, threaded push rod; 32, limiting rod; 4, air jet pipe; 41, first air jet head; 42, second air jet head; 43, driving air cylinder; 44, first cleaning hole; 45, second cleaning hole; 46, air flow channel; 47, collecting groove. DETAILED DESCRIPTION

[0019] The utility model will be further described below in combination with the drawings and examples, but not as the basis for limiting the utility model.

[0020] In the description of the utility model, it also needs to be explained that, unless there is explicit provision and limitation, the terms "setting", "installing", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0021] Embodiment:

[0022] As Figs. 1-2 shown, a sheet metal stamping forming device for improving stamping quality, comprising a base frame 1, the bottom of the base frame 1 is provided with a fixed seat 11, the fixed seat 11 is provided with a bearing table 2, the bearing table 2 is provided with a pair of symmetrical die seats 21, the two die seats 21 are provided with mounting grooves 22, the mounting grooves 22 are rotatably connected with fixed die plates 24 through spring rotating shafts 23, the top of the base frame 1 is provided with a stamping hydraulic cylinder 25, the telescopic end of the stamping hydraulic cylinder 25 is provided with a movable die plate 26; the inside of the fixed seat 11 is provided with a buffer column 12, the buffer column 12 and the fixed seat 11 are provided with a buffer spring 13, the lower end of the buffer spring 13 is fixedly connected with the fixed seat 11, the upper end of the buffer spring 13 is fixedly connected with the buffer column 12, the buffer column 12 extends upwards and abuts against the bottom of the two fixed die plates 24; the opposite sides of the two die seats 21 are provided with movable side plates 3 above the fixed die plates 24.

[0023] The utility model discloses two movable side plates 3 are arranged above the fixed mould plate 24, when stamping, the stamping sheet metal part is placed between two movable side plates 3, and the movable side plate 3 is clamped to the sheet metal part and is limited, guarantees the sheet metal part placement position accuracy, avoids the deviation of stamping sheet metal part in the process of pressing, improves the stamping quality, and the distance between two movable side plates 3 can be adjusted, is suitable for different size stamping sheet metal part.

[0024] When stamping, the movable die plate 26 is driven by the stamping hydraulic cylinder 25 and moves downwards to the fixed mould plate 24, after the fixed mould plate 24 is subjected to pressure, through the cooperation of spring pivot 23 and buffer spring 13, double buffering effect is played, the impact that the fixed mould plate is subjected to is reduced, the stability and safety of movable die plate 26 pressing are improved, and the stamping quality is improved, after stamping is completed, the fixed mould plate 24 can also be automatically turned up upwards under the action of spring pivot 23 and buffer spring 13, the function of automatic demoulding is played, the friction damage is reduced, and taking material is convenient.

[0025] The movable side plate 3 is equipped with the threaded push rod 31 and the limiting rod 32 that pass through the die holder 21, the threaded push rod 31 is rotatably connected with the movable side plate 3 and is threadedly connected with the die holder 21, the limiting rod 32 is fixedly connected with the movable side plate 3 and is slidably connected with the die holder 21. By rotating the threaded push rod 31, the movable side plate 3 is driven to move horizontally, thereby adjusting the distance between the two movable side plates 3, which can clamp and limit sheet metal parts of different sizes, thereby effectively preventing the sheet metal parts from deviating during stamping processing, causing size errors.

[0026] The die holder 21 is provided with a gas jet pipe 4 between the movable side plate 3 and the fixed mould plate 24, the upper portion of the gas jet pipe 4 is provided with a first gas jet head 41 facing the movable die plate 26, the lower portion of the gas jet pipe 4 is provided with a second gas jet head 42 facing the fixed mould plate 24, and the outer end of the gas jet pipe 4 is connected with a driving cylinder 43. After stamping is completed, the driving cylinder 43 drives the gas jet pipe 4 to move, so that the first gas jet head 41 and the second gas jet head 42 are aligned with the movable die plate 26 and the fixed mould plate 24 respectively to jet clean, ensuring the cleanliness of the movable die plate 26 and the fixed mould plate 24 after stamping, reducing the influence on subsequent stamping, and improving the quality of subsequent stamping.

[0027] The stamping surface of the fixed die plate 24 is provided with a first cleaning hole 44, the bottom surface of the fixed die plate 24 is provided with a second cleaning hole 45, the inside of the fixed die plate 24 is provided with an air flow channel 46 respectively communicating with the first cleaning hole 44 and the second cleaning hole 45, and the bottom of the die holder 21 is provided with a collection groove 47 corresponding to the second cleaning hole 45. The fixed die plate 24 after stamping is in an inclined state, the first cleaning hole 44 is used to collect the waste on the fixed die plate 24, so that it is easier to enter the air flow channel 46 and then fall into the collection groove 47 from the second cleaning hole 45, to ensure the cleanliness of the fixed die plate 24 after stamping once, reduce the interference on the subsequent stamping, improve the quality of subsequent stamping, and prevent the waste from being retained in the die plate or splashing to other places.

[0028] The movable side plate 3 is provided with a avoiding groove for the jet pipe 4 to pass through, which facilitates the transverse movement of the jet pipe 4 under the drive of the driving cylinder 43, and avoids the interference between the jet pipe 4 and the movable side plate 3.

[0029] The side surface of the buffer column 12 is provided with a convex strip 14, and the bearing table 2 is provided with a sliding groove 27 for the up-down sliding of the convex strip 14. The convex strip 14 and the sliding groove 27 are matched with each other to limit the movement position of the buffer column 12, prevent the movement of the buffer column 12 from deviating, and ensure the movement stability of the buffer column 12 and the compression stability of the compression spring.

[0030] Working process: when the sheet metal part is stamped, the sheet metal part is placed on the fixed die plate 24, and the positions of the two movable side plates 3 are adjusted to abut against the side surface of the sheet metal part, so as to limit the stamping position of the sheet metal part and avoid deviation during stamping; then the stamping hydraulic cylinder 25 is started to drive the movable die plate 26 to move downward, so that the movable die plate 26 and the fixed die plate 24 cooperate to stamp the sheet metal part; when the fixed die plate 24 bears a certain pressure, the spring shaft 23 rotates, and the buffer column 12 is pressed downward to compress the buffer spring 13, which ensures the stability of stamping and avoids damage to the fixed die plate 24.

[0031] When the stamping is completed, the stamping hydraulic cylinder 25 drives the movable die plate 26 to move upward and separate from the fixed die plate 24, the fixed die plate 24 is turned upward under the restoring action of the spring shaft 23 and the buffer spring 13, so that the sheet metal part is ejected upward and separated from the fixed die plate 24, which is convenient for taking the formed sheet metal part.

[0032] After the sheet metal part is taken out, the jet pipe 4 is driven by the driving cylinder 43 to move towards the side of the fixed mold plate 24, so that the first jet head 41 and the second jet head 42 are aligned with the movable mold plate 26 and the fixed mold plate 24 respectively to spray, and the waste generated by the movable mold plate 26 and the fixed mold plate 24 is cleaned, at this time the fixed mold plate 24 is in an inclined state, so that the waste is easily entered into the airflow channel 46 through the first cleaning hole 44 and then falls into the collecting groove 47 from the second cleaning hole 45 to be collected, the cleanliness of the movable mold plate 26 and the fixed mold plate 24 after stamping is ensured, the interference of the waste on subsequent stamping is reduced, and the quality of subsequent stamping is improved.

[0033] The part not described in detail in the utility model is prior art, so it will not be specifically described here.

Claims

1. A sheet metal stamping forming apparatus for improving stamping quality, characterized in that: The system includes a base frame (1), a fixed seat (11) at the bottom of the base frame (1), a support platform (2) on the fixed seat (11), a pair of symmetrically distributed mold bases (21) on the support platform (2), and mounting grooves (22) on both mold bases (21). Fixed templates (24) are rotatably connected in the mounting grooves (22) through spring shafts (23). A stamping hydraulic cylinder (25) is provided at the top of the base frame (1), and a movable template (26) is provided at the telescopic end of the stamping hydraulic cylinder (25). A buffer column (12) is provided inside the fixed seat (11), and a buffer spring (13) is provided between the buffer column (12) and the fixed seat (11). The buffer column (12) extends upwards from the support platform (2) and abuts against the bottom of the two fixed templates (24). Movable side plates (3) are also symmetrically provided on the opposite sides of the two mold bases (21) above the fixed templates (24).

2. The sheet metal stamping forming apparatus for improving stamping quality according to claim 1, characterized in that: The movable side plate (3) is provided with a threaded push rod (31) and a limiting rod (32) that pass through the mold base (21). The threaded push rod (31) is rotatably connected to the movable side plate (3) and threadedly connected to the mold base (21). The limiting rod (32) is fixedly connected to the movable side plate (3) and slidably connected to the mold base (21).

3. The sheet metal stamping forming apparatus for improving stamping quality according to claim 1, characterized in that: The mold base (21) is provided with an air jet pipe (4) located between the movable side plate (3) and the fixed template (24). A first air jet head (41) is provided above the air jet pipe (4) facing the movable template (26), and a second air jet head (42) is provided below the air jet pipe (4) facing the fixed template (24). The outer end of the air jet pipe (4) is connected to a drive cylinder (43).

4. The sheet metal stamping forming apparatus for improving stamping quality according to claim 3, characterized in that: The fixed template (24) has a first cleaning hole (44) on its stamping surface and a second cleaning hole (45) on its bottom surface. The fixed template (24) has an airflow channel (46) that connects the first cleaning hole (44) and the second cleaning hole (45) respectively. The mold base (21) has a collection groove (47) at its bottom that corresponds to the second cleaning hole (45).

5. A sheet metal stamping forming apparatus for improving stamping quality according to claim 3, characterized in that: The movable side plate (3) is provided with a clearance groove for the jet pipe (4) to pass through.

6. The sheet metal stamping forming apparatus for improving stamping quality according to claim 1, characterized in that: The side of the buffer column (12) is provided with a protrusion (14), and the support platform (2) is provided with a groove (27) for the protrusion (14) to slide up and down.

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