Workpiece stamping device
By setting a limiting mechanism and an ejection mechanism in the frame stamping device, the problem of metal sheet misalignment was solved, and accurate positioning and convenient demolding of the metal sheet were achieved, thereby improving the precision of stamped parts and product quality.
Patent Information
- Application Number
- CN202520411927.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-11
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-11
AI Technical Summary
The existing frame stamping equipment lacks an effective limiting mechanism, which makes the metal sheet prone to displacement during the stamping process, affecting the dimensional accuracy and shape of the stamped parts and failing to meet design requirements.
A limiting mechanism is set in the stamping device, including a slide, a movable block, a U-shaped frame and a limiting plate. The limiting plate is stably close to the fixed metal plate by the motor driving the bidirectional lead screw to avoid displacement. After stamping, the plate is ejected by a pneumatic cylinder for easy demolding.
To ensure accurate positioning of metal sheets during the stamping process, improve the precision and yield of stamped parts, guarantee product quality stability, and simplify the demolding process.
Smart Images
Figure CN223862690U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of frame stamping, in particular to a workpiece stamping device. BACKGROUND
[0002] In the frame assembly manufacturing process, stamping process is widely used in producing various shapes of beams, plates and other components, through stamping process, the metal plate can be stamping forming, thereby obtaining the required shape.
[0003] The existing frame stamping device, including base, be provided with lower die seat on the base, the top side four corners of the base are fixedly connected with four stand columns, the top of four stand columns is installed with the support plate, install pneumatic cylinder on the support plate, the acting end of pneumatic cylinder is assembled with pneumatic rod, the bottom of pneumatic rod is fixedly connected with lifting plate, the bottom side of lifting plate is assembled with upper die seat, in the stamping forming process to frame, first, the metal plate to be processed is placed on the lower die seat, then start pneumatic cylinder, make pneumatic rod drive lifting plate and its bottom side upper die seat down, when upper die seat and metal plate contact, continue to exert pressure, make metal plate under the joint action of lower die seat and upper die seat plastic deformation, form the required shape, thereby can stamping forming to metal plate.
[0004] The existing frame stamping device lacks effective limiting mechanism, if there is no limiting mechanism, the metal plate is easy to deviate in the stamping process, the deviation of metal plate can lead to the size precision of stamping part to decline, can not satisfy the design requirement, and the deviation can also cause the frame shape to deform, lead to the stamping part to not meet the shape requirement of expectation, thereby influence subsequent assembly and the appearance of whole vehicle, therefore, aiming at the above problem, propose a kind of workpiece stamping device. UTILITY MODEL CONTENTS
[0005] In order to make up for the deficiencies of the prior art, solve the problems raised in the background art, the utility model provides a workpiece stamping device.
[0006] The utility model discloses a technical scheme that solves its technical problems is: A workpiece stamping device, including support platform, install lower die seat on the support platform, the both sides of lower die seat are provided with limiting mechanism, the limiting mechanism includes two sliding slots, the support platform is provided with two sliding slots, two sliding slots are located at the both sides of lower die seat respectively, all be provided with movable block in two sliding slots, the top of two movable blocks all is firmly connected with U -shaped frame, the top of two U -shaped frames all is firmly connected with limiting plate, the bottom side of support platform is installed with two fixed plates, two fixed plates are installed with two -way screw rod of cooperation rotation, and the two -way screw rod is set up through movable block, wherein one fixed plate is installed with motor, the output of motor is connected with one end of two -way screw rod, in the stamping process of frame, in order to avoid the deviation of metal sheet, by setting limiting mechanism, before stamping, the metal sheet to be processed is placed on lower die seat, then starts first motor, makes two -way screw rod rotate, and then makes two movable blocks along with the mutual approach of sliding slot, under the cooperation of limiting groove and limiting block, make two movable blocks drive two limiting plates to move stably and mutually approach, until two limiting plates move to the side wall of metal sheet and contact, thereby can effectively limit the metal sheet of stamping and fix, avoid the deviation phenomenon of metal sheet in the stamping process, can ensure the accurate positioning of metal sheet in the stamping process, thereby greatly improve the precision of stamping part, ensure that stamping part meets the design requirement, improve the qualified rate and quality stability of product.
[0007] Preferably, the top of the support platform is provided with two limiting grooves on both sides, and the two limiting grooves on the same side are located on both sides of the sliding slot, a limiting block is arranged in each limiting groove, and the top side wall of the limiting block is fixedly connected to the bottom side wall of the U-shaped frame.
[0008] Preferably, the support platform and the lower die seat cooperatively define two recesses, the top end of the two recesses is provided with an ejection plate, the bottom of the two recesses is provided with a second pneumatic cylinder, the acting end of the two second pneumatic cylinders is provided with a second pneumatic rod, and the top end of the second pneumatic rod is fixedly connected to the ejection plate. After the frame stamping is completed, when the formed frame is taken out, the second pneumatic cylinder is started, the second pneumatic rod drives the ejection plate to move upwards, the ejection plate can smoothly eject the formed frame from the lower die seat, facilitating demolding and avoiding the phenomenon of difficult part taking.
[0009] Preferably, four guide columns are fixedly connected to the top side of the support platform, and a horizontal plate is fixedly connected to the top of the four guide columns. A lifting plate is slidably assembled on the four guide columns, and an upper die base is installed on the bottom side of the lifting plate. A first pneumatic cylinder is installed on the horizontal plate, and a first pneumatic rod is assembled on the working end of the first pneumatic cylinder. The bottom end of the first pneumatic rod is fixed to the lifting plate. During the stamping process of the metal plate, the first pneumatic cylinder is activated, causing the lifting plate and the upper die base on its bottom side to move downward. With the cooperation of the guide columns, the lifting plate drives the upper die base to move downward smoothly. When the upper die base moves down to contact the metal plate, pressure is continued to be applied, causing the metal plate to undergo plastic deformation under the combined action of the lower die base and the upper die base, forming the required shape, thereby enabling the metal plate to be stamped and formed.
[0010] The advantages of this utility model are:
[0011] 1. In the process of stamping a vehicle frame, this utility model, in order to prevent the metal sheet from shifting, sets up a limiting mechanism. Before stamping, the metal sheet to be processed is placed on the lower die base. Then, the first motor is started, causing the bidirectional lead screw to rotate, which in turn causes two movable blocks to move closer to each other along the slide groove. With the cooperation of the limiting groove and the limiting block, the two movable blocks drive the two limiting plates to move stably and move closer to each other until the two limiting plates move until the two side walls of the metal sheet contact each other. This can effectively limit and fix the metal sheet to be stamped, preventing the metal sheet from shifting during the stamping process. It can ensure the accurate positioning of the metal sheet during the stamping process, thereby greatly improving the accuracy of the stamped parts, ensuring that the stamped parts meet the design requirements, and improving the product qualification rate and quality stability.
[0012] 2. After the vehicle frame of this utility model is stamped, when the formed vehicle frame is taken out, the second pneumatic cylinder is activated, so that the second pneumatic rod drives the ejector plate to move upward. The ejector plate can smoothly push the formed vehicle frame out of the lower mold base, which facilitates demolding and avoids the phenomenon of difficulty in removing the part. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0014] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the device;
[0015] Figure 2 This is a partial three-dimensional structural diagram of the device;
[0016] Figure 3 This is a schematic diagram of the three-dimensional structure of the limiting mechanism;
[0017] Figure 4 A schematic diagram of the three-dimensional structure supporting the components on the bottom of the platform;
[0018] Figure 5 This is a schematic diagram of the three-dimensional structure of the ejection mechanism.
[0019] In the diagram: 1. Support platform; 2. Lower mold base; 3. Slide groove; 4. Movable block; 5. U-shaped frame; 6. Limiting plate; 7. Fixing plate; 8. Two-way lead screw; 9. Motor; 10. Limiting groove; 11. Limiting block; 12. Groove; 13. Second pneumatic cylinder; 14. Ejector plate; 15. Guide column; 16. Horizontal plate; 17. Lifting plate; 18. Upper mold base; 19. First pneumatic cylinder; 20. First pneumatic rod. Detailed Implementation
[0020] 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 scope of protection of the present utility model.
[0021] Please see Figures 1-4As shown, a workpiece stamping device includes a support platform 1, on which a lower die base 2 is mounted. Limiting mechanisms are provided on both sides of the lower die base 2. Each limiting mechanism includes two sliding grooves 3. Two sliding grooves 3 are opened on the support platform 1, located on opposite sides of the lower die base 2. Movable blocks 4 are provided within each sliding groove 3. U-shaped frames 5 are fixedly connected to the tops of both movable blocks 4, and limiting plates 6 are fixedly connected to the tops of both U-shaped frames 5. Two fixed plates 7 are installed on the bottom side of the support platform 1. A bidirectional lead screw 8 is rotatably mounted on each fixed plate 7, passing through the movable blocks 4. A motor 9 is mounted on one of the fixed plates 7, with its output end connected to one end of the bidirectional lead screw 8. Two limiting grooves 10 are opened on both sides of the top of the support platform 1, located on opposite sides of the sliding grooves 3. Each limiting groove 10 contains a limiting block 11, which limits the movement of the workpiece. The top sidewall of block 11 is fixed to the bottom sidewall of U-shaped frame 5. During the stamping process of the frame, in order to prevent the metal sheet from shifting, a limiting mechanism is set. Before stamping, the metal sheet to be processed is placed on the lower die base 2. Then, the first motor 9 is started, causing the bidirectional lead screw 8 to rotate, which in turn causes the two movable blocks 4 to move closer to each other along the slide groove 3. With the cooperation of the limiting groove 10 and the limiting block 11, the two movable blocks 4 drive the two limiting plates 6 to move stably and move closer to each other until the two limiting plates 6 move until the two side walls of the metal sheet contact each other. Then, the first motor 9 stops working, which can effectively limit and fix the metal sheet to be stamped, prevent the metal sheet from shifting during the stamping process, ensure the accurate positioning of the metal sheet during the stamping process, thereby greatly improving the accuracy of the stamped parts, ensuring that the stamped parts meet the design requirements, and improving the product qualification rate and quality stability.
[0022] Please see Figure 5 As shown, the support platform 1 and the lower mold base 2 are fitted together with two grooves 12. An ejector plate 14 is provided at the top end of the two grooves 12. A second pneumatic cylinder 13 is installed at the bottom of each of the two grooves 12. A second pneumatic rod is fitted at the working end of each of the two second pneumatic cylinders 13, and the top end of the second pneumatic rod is fixed to the ejector plate 14. After the frame is stamped, when the formed frame is taken out, the second pneumatic cylinder 13 is activated, so that the second pneumatic rod drives the ejector plate 14 to move upward. The ejector plate 14 can smoothly eject the formed frame from the lower mold base 2, which facilitates demolding and avoids the phenomenon of difficulty in removing the part.
[0023] Please see Figure 1As shown, four guide pillars 15 are fixedly connected to the top side of the support platform 1. A horizontal plate 16 is fixedly connected to the top of the four guide pillars 15. A lifting plate 17 is slidably assembled with the four guide pillars 15. An upper mold base 18 is installed on the bottom side of the lifting plate 17. A first pneumatic cylinder 19 is installed on the horizontal plate 16. A first pneumatic rod 20 is assembled on the actuating end of the first pneumatic cylinder 19, and the bottom end of the first pneumatic rod 20 is fixedly connected to the lifting plate 17. During the stamping process of the metal plate, the metal plate is placed in the lower mold. After the lower die 2 is fixed and the position is limited, the first pneumatic cylinder 19 is activated, causing the first pneumatic rod 20 to drive the lifting plate 17 and the upper die base 18 on its bottom side to move down. With the cooperation of the guide column 15, the lifting plate 17 drives the upper die base 18 to move down smoothly. When the upper die base 18 moves down to contact the metal sheet, pressure is continued to be applied, causing the metal sheet to undergo plastic deformation under the combined action of the lower die base 2 and the upper die base 18, forming the required shape, thereby enabling the metal sheet to be stamped and formed.
[0024] Working Principle: Existing frame stamping devices lack effective limiting mechanisms. Without these mechanisms, the metal sheet is prone to shifting during stamping, leading to decreased dimensional accuracy of the stamped part and failure to meet design requirements. Furthermore, shifting can cause frame deformation, resulting in stamped parts that do not meet expected shape requirements, thus affecting subsequent assembly and the overall vehicle appearance. Therefore, a workpiece stamping device is proposed to address these issues. During frame stamping, to prevent metal sheet shifting, a limiting mechanism is used. Before stamping, the metal sheet to be processed is placed on the lower die holder 2, and then the first motor is started. 9. The bidirectional lead screw 8 rotates, causing the two movable blocks 4 to move closer together along the slide groove 3. With the cooperation of the limiting groove 10 and the limiting block 11, the two movable blocks 4 drive the two limiting plates 6 to move stably and move closer together until the two limiting plates 6 move until the two side walls of the metal plate contact each other. Then the first motor 9 stops working, thus effectively limiting and fixing the metal plate to be stamped, avoiding the phenomenon of metal plate displacement during stamping, ensuring the accurate positioning of the metal plate during stamping, thereby greatly improving the accuracy of the stamped parts, ensuring that the stamped parts meet the design requirements, and improving the product qualification rate and quality stability.
[0025] During the stamping process of the metal sheet, after the metal sheet is placed on the lower die base 2 and fixed in place, the first pneumatic cylinder 19 is activated, causing the first pneumatic rod 20 to drive the lifting plate 17 and the upper die base 18 on its bottom side to move downward. With the cooperation of the guide column 15, the lifting plate 17 drives the upper die base 18 to move downward smoothly. When the upper die base 18 moves downward to contact the metal sheet, pressure is continued to be applied, causing the metal sheet to undergo plastic deformation under the combined action of the lower die base 2 and the upper die base 18, forming the required shape, thereby enabling the metal sheet to be stamped and formed. After the frame stamping is completed, when the formed frame is taken out, the second pneumatic cylinder 13 is activated, causing the second pneumatic rod to drive the ejector plate 14 to move upward. The ejector plate 14 can smoothly eject the formed frame from the lower die base 2, which is convenient for demolding and avoids the phenomenon of difficulty in removing the part.
[0026] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A workpiece stamping device, characterized in that: The system includes a support platform (1), on which a lower mold base (2) is installed. Limiting mechanisms are provided on both sides of the lower mold base (2). The limiting mechanisms include two sliding grooves (3). Two sliding grooves (3) are opened on the support platform (1). The two sliding grooves (3) are located on both sides of the lower mold base (2). Movable blocks (4) are provided in both sliding grooves (3). U-shaped frames (5) are fixed to the top of both movable blocks (4). Limiting plates (6) are fixed to the top of both U-shaped frames (5). Two fixed plates (7) are installed on the bottom side of the support platform (1). Two bidirectional screws (8) are rotatably installed on the two fixed plates (7). The bidirectional screws (8) pass through the movable blocks (4). A motor (9) is installed on one of the fixed plates (7). The output end of the motor (9) is connected to one end of the bidirectional screws (8).
2. The workpiece stamping device according to claim 1, characterized in that: The support platform (1) has two limiting grooves (10) on both sides of its top, and the two limiting grooves (10) on the same side are located on both sides of the slide groove (3). Each limiting groove (10) is provided with a limiting block (11), and the top side wall of the limiting block (11) is fixed to the bottom side wall of the U-shaped frame (5).
3. The workpiece stamping device according to claim 1, characterized in that: The support platform (1) and the lower mold base (2) are provided with two grooves (12), and an ejector plate (14) is provided at the top port of the two grooves (12).
4. The workpiece stamping device according to claim 3, characterized in that: The bottom of each of the two grooves (12) is equipped with a second pneumatic cylinder (13), and the working end of each of the two second pneumatic cylinders (13) is equipped with a second pneumatic rod, and the top end of the second pneumatic rod is fixed to the ejector plate (14).
5. The workpiece stamping device according to claim 1, characterized in that: The support platform (1) is fixedly connected to the top side with four guide columns (15), and the top of the four guide columns (15) is fixedly connected with a horizontal plate (16). The four guide columns (15) are slidably assembled with a lifting plate (17), and the bottom side of the lifting plate (17) is equipped with an upper mold base (18).
6. The workpiece stamping device according to claim 5, characterized in that: A first pneumatic cylinder (19) is installed on the horizontal plate (16). The working end of the first pneumatic cylinder (19) is equipped with a first pneumatic rod (20), and the bottom end of the first pneumatic rod (20) is fixed to the lifting plate (17).