A press with a flexible support platform

Abstract

The present disclosure discloses a press with a flexible support platform, belonging to the field of press structures; a press with a flexible support platform includes a driving device, an upper die, a lower die, a pressure sensor, a displacement sensor, and a flexible support platform; the driving device drives the upper die to move downward to achieve the pressing of the workpiece; the pressure sensor at the lower end of the lower die is provided to monitor the pressure exerted on the workpiece; the displacement sensor is provided to monitor the displacement of the workpiece; the flexible support platform is provided at the lower end of the pressure sensor to achieve the flexible support of the workpiece and avoid damage to the workpiece caused by rigid support.

Description

Technical Field

[0001] The present disclosure belongs to the field of press structures, and particularly relates to a press with a flexible support platform. Background Art

[0002] With the continuous development of current technology, presses are widely used in the assembly process of mechanical equipment components. In the early days, there were hydraulic presses, which were mainly used for large components and occasions with relatively low assembly accuracy; with the development of the economy, there is a huge demand for precision assembly, so servo presses emerged and are used for occasions with high precision and stable pressure. However, existing hydraulic presses and servo presses both use a rigid support platform to fix the lower die and the workpiece, so there are problems of position error and inertia. When assembling rigid workpieces, when reaching the critical position of the rated displacement, there will be a phenomenon that the pressure increases by several times, which will cause pressure damage to the pressed workpiece. Summary of the Invention

[0003] Aiming at the deficiencies of the prior art, the purpose of the present disclosure is to provide a press with a flexible support platform, which solves the problem that the rigid support platform in the prior art will cause pressure damage to the workpiece.

[0004] The purpose of the present disclosure can be achieved by the following technical solutions:

[0005] A press with a flexible support platform includes a driving device. A upper die is fixedly connected to the driving shaft of the driving device. A lower die is installed below the upper die. The upper die and the lower die are pressed against each other to press the workpiece. The feature is that a pressure sensor is arranged below the lower die, and a flexible support platform is installed at the lower end of the pressure sensor. The flexible support platform is used to achieve flexible support for the workpiece.

[0006] Further, the flexible support platform is a spring support platform or a hydraulic support platform.

[0007] Further, the spring support platform includes a first piston cylinder. A first piston is slidably connected in the first piston cylinder. A first piston rod is fixedly installed at the upper end of the first piston. The first piston rod passes through the upper end of the first piston cylinder and is slidably connected with the first piston cylinder. The upper end of the first piston rod is fixedly connected with a first support plate, and the first support plate is located at the lower end of the pressure sensor.

[0008] Further, an adjusting bolt is threadedly connected to the lower end of the first piston cylinder. The upper end of the adjusting bolt passes through the lower end part of the first piston cylinder and is rotatably connected with a first spring at the end. One end of the first spring contacts the lower end surface of the first piston, and the other end is rotatably connected with the upper end surface of the adjusting bolt.

[0009] Further, the hydraulic support platform includes a second piston cylinder filled with oil. A second piston is slidably connected within the second piston cylinder and is adapted to cooperate with the second piston cylinder. The upper end of the second piston is fixedly installed with a second piston rod, and the second piston rod is slidably connected to the second piston cylinder. The upper end of the second piston rod is fixedly installed with a second support plate, and the second support plate is located below the pressure sensor.

[0010] Further, a third piston cylinder is installed on one side of the second piston cylinder. A first oil pipe and a second oil pipe are connected between the third piston cylinder and the second piston cylinder. The first oil pipe is located below the second piston, and the second oil pipe is located above the second piston.

[0011] Further, a third piston is slidably connected within the third piston cylinder, and the third piston is located between the first oil pipe and the second oil pipe.

[0012] Further, the upper end of the third piston cylinder is fixedly installed with a third piston rod. The third piston rod passes through the upper end of the third piston cylinder and is slidably connected to the third piston rod. A second spring is fixed to the upper end of the third piston rod. The upper end of the second spring is fixedly connected to an external object, and the other end is fixedly connected to the third piston rod.

[0013] Further, the upper end of the second oil pipe is connected to a third oil pipe. The third oil pipe passes through the tabletop and an overflow valve is installed at the end.

[0014] Further, a displacement sensor is installed on one side of the flexible support platform, and the displacement sensor is used to identify and read the displacement of the workpiece.

[0015] Advantages of the present disclosure: By changing the rigid support platform of the press into a flexible support platform, the defect that the traditional press is likely to damage the workpiece is overcome. The flexible support platform absorbs the movement inertia to ensure that the workpiece is not crushed or deformed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

[0017] Figure 1 is the overall structural schematic diagram of the present disclosure;

[0018] Figure 2 is the structural schematic diagram of Embodiment 1 of the present disclosure;

[0019] Figure 3 is the structural schematic diagram of Embodiment 2 of the present disclosure. Detailed implementation mode

[0020] Next, the technical solutions in the embodiments of the present disclosure will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present disclosure.

[0021] As Figure 1 shown, a press with a flexible support platform includes a driving device 1. The lower end of the driving shaft of the driving device 1 is fixedly installed with an upper template 2. A lower template 4 is installed below the upper template 2. A workpiece 3 is placed between the upper template 2 and the lower template 4. The workpiece 3 is placed on the upper end surface of the lower template 4. When the driving device 1 drives the upper template 2 to move downward and applies a pressure to the workpiece 3 on the upper end of the lower template 4, the pressing of the workpiece 3 can be realized.

[0022] As Figure 1 shown, a flexible support platform 6 is arranged below the lower template 4. A pressure sensor 5 is installed between the flexible support platform 6 and the lower template 4. The pressure sensor 5 is placed above the flexible self-supporting platform 6. Under the pressure of the driving device 1, the lower template 4 will apply a pressure to the flexible support platform 6, causing the moving parts in the support platform to move slightly downward, thereby playing a role in flexibly supporting the lower template 4 and avoiding damage to the workpiece 3 due to excessive pressing during the pressing of the workpiece 3, which affects the quality of the workpiece 3; the pressure sensor 5 identifies and reads the pressure received by the workpiece 3. When it senses that the received pressure exceeds the rated value, human intervention can be carried out to avoid greater economic losses;

[0023] A displacement sensor 7 is arranged on one side of the flexible support platform 6. The displacement sensor 7 is used to identify and read the displacement of the moving parts on the flexible support platform 6, that is, the displacement of the workpiece 3. When the displacement exceeds the rated value, it means that the pressure received by the workpiece 3 is too large. At this time, human intervention can be carried out to avoid greater economic losses;

[0024] By adjusting the flexible pressure platform, the effect of achieving the rated displacement within the rated pressure value can be realized, greatly improving the qualification rate of assembled workpieces, that is, avoiding damage to the workpiece due to the pressure exceeding the rated pressure value caused by a small amount of displacement during the downward pressing of the fixed platform.

[0025] Embodiment 1:

[0026] As Figure 2As shown in the figure, the flexible support platform 6 is a spring support platform. The spring support platform includes a first piston cylinder 62. A first piston 64 is slidably connected inside the first piston cylinder 62. The upper end of the first piston 64 is fixedly installed with a first piston rod 63. The first piston rod 63 passes through the upper end of the first piston cylinder 62 and is slidably connected with the first piston cylinder 62. The upper end of the first piston rod 63 is fixedly connected with a first support plate 61. The first support plate 61 is located below the pressure sensor 5. When the driving device 1 presses the workpiece 3, the first piston 64 moves downward;

[0027] The lower end of the first piston cylinder 62 is threadedly connected with an adjusting bolt 66. The upper end of the adjusting bolt 66 passes through the lower end of the first piston cylinder 62, and a first spring 65 is rotatably connected to the end. One end of the first spring 65 contacts the lower end surface of the first piston 64, and the other end is rotatably connected to the upper end surface of the adjusting bolt 66; When pressing the workpiece 3, through the elastic force of the first spring 65, the flexible support of the workpiece 3 is realized, thereby playing a role in protecting the workpiece 3;

[0028] By rotating the adjusting bolt 66, that is, adjusting the elastic force of the first spring 65, the purpose of changing the elastic support force received by the workpiece 3 is achieved, and the adjustability of the flexible support of the press is improved.

[0029] Embodiment 2:

[0030] As Figure 3 shown in the figure, the flexible support platform 6 is a hydraulic support platform; The hydraulic support platform includes a second piston cylinder 612. The second piston cylinder 612 is filled with oil. A second piston 614 is slidably connected inside the second piston cylinder 612, and the second piston 614 cooperates with the second piston cylinder 612; The upper end of the second piston 614 is fixedly installed with a second piston rod 613. The second piston rod 613 is slidably connected with the second piston cylinder 612. The upper end of the second piston rod 613 is fixedly installed with a second support plate 611. The second support plate 611 is located below the pressure sensor 5; When the driving device 1 presses the workpiece 3, the second piston 614 moves downward;

[0031] A third piston cylinder 617 is installed on one side of the second piston cylinder 612. A first oil pipe 615 and a second oil pipe 616 are connected between the third piston cylinder 617 and the second piston cylinder 612. The first oil pipe 615 is located below the second piston 614, and the second oil pipe 616 is located above the second piston 614. When the second piston 614 moves downward, the oil can be pressed into the third piston cylinder 617 from the second oil pipe 616;

[0032] A third piston 618 is slidably connected within a third piston cylinder 617. The third piston 618 is located between a first oil pipe 615 and a second oil pipe 616. When the second piston 614 moves downward, it can drive the third piston 618 to move upward. When the third piston 618 moves upward, the oil pressure above the third piston 618 can be pressed into the second oil pipe 616, so that the oil can flow into the second piston cylinder 612 to maintain the balance of the oil fluid.

[0033] A third piston rod 619 is fixedly installed at the upper end of the third piston cylinder 617. The third piston rod 619 passes through the upper end of the third piston cylinder 617 and is slidably connected to the third piston rod 619. A second spring 620 is fixed to the upper end of the third piston rod 619. The upper end of the second spring 620 is fixedly connected to an external object, and the other end is fixedly connected to the third piston rod 619. When the pressure applied by the driving device 1 to the workpiece 3 can overcome the elastic force of the second spring 620, the workpiece 3 can move downward along with the second support plate 611, thereby elastically supporting the workpiece 3 and preventing the workpiece 3 from being damaged by pressing.

[0034] The upper end of the second oil pipe 616 is connected to a third oil pipe 621. The third oil pipe 621 passes through the tabletop 8 and an overflow valve 622 is installed at the end. When the overflow valve 622 is opened and there is oil flowing out of the overflow valve 622, it indicates that the pressure received by the workpiece 3 is too large. In addition, the oil can be filled into the third piston cylinder 617 and the second piston cylinder 612 through the overflow valve 622.

[0035] In the description of this specification, the description with reference to terms such as "an embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0036] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A press with a flexible support platform, comprising a driving device (1), an upper die (2) fixedly connected to the driving shaft of the driving device (1), a lower die (4) installed below the upper die (2), and the upper die (2) and the lower die (4) are pressed against each other to press the workpiece (3); characterized in that, A pressure sensor (5) is arranged below the lower die (4), and a flexible support platform (6) is installed at the lower end of the pressure sensor (5). The flexible support platform (6) is used to achieve flexible support for the workpiece (3); The flexible support platform (6) is a hydraulic support platform; The hydraulic support platform includes a second piston cylinder (612) filled with oil. A second piston (614) is slidably connected in the second piston cylinder (612), and the second piston (614) cooperates with the second piston cylinder (612). A second piston rod (613) is fixedly installed at the upper end of the second piston (614). The second piston rod (613) is slidably connected to the second piston cylinder (612). A second support plate (611) is fixedly installed at the upper end of the second piston rod (613), and the second support plate (611) is located at the lower end of the pressure sensor (5); A third piston cylinder (617) is installed on one side of the second piston cylinder (612). A first oil pipe (615) and a second oil pipe (616) are connected between the third piston cylinder (617) and the second piston cylinder (612). The first oil pipe (615) is located below the second piston (614), and the second oil pipe (616) is located above the second piston (614); A third piston (618) is slidably connected in the third piston cylinder (617), and the third piston (618) is located between the first oil pipe (615) and the second oil pipe (616); A third piston rod (619) is fixedly installed at the upper end of the third piston cylinder (617). The third piston rod (619) passes through the upper end of the third piston cylinder (617) and is slidably connected to the third piston cylinder (617). A second spring (620) is fixed at the upper end of the third piston rod (619). The upper end of the second spring (620) is fixedly connected to an external object, and the other end is fixedly connected to the third piston rod (619).

2. The press with a flexible support platform according to claim 1, characterized in that, The upper end of the second oil pipe (616) is connected to a third oil pipe (621). The third oil pipe (621) passes through the tabletop (8) and an overflow valve (622) is installed at the end; 3. The press with a flexible support platform according to claim 1, characterized in that, A displacement sensor (7) is installed on one side of the flexible support platform (6). The displacement sensor (7) is used to identify and read the displacement of the workpiece (3).

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