Damping arm structure based on disc spring

Abstract

The utility model belongs to the technical field of cantilevers, and particularly relates to a damping arm structure based on a disc spring, which comprises a cantilever, the end part of the cantilever is hinged with a connecting part by virtue of a first hinge shaft, the connecting part comprises a rack, a first disc spring is sleeved on the first hinge shaft, and a second disc spring is sleeved on the rack. The first disc spring is arranged between the cantilever and the connecting component, the end of the first hinge shaft penetrates through the cantilever or the connecting component and is provided with a rotary knob in a screwing mode, and the rotary knob has the freedom degree of axial movement along the first hinge shaft and forms a pressure adjusting piece of the cantilever or the connecting component on the first disc spring. The cantilever can rotate relative to the rack or the operation panel, position and angle adjustment of the operation panel is achieved, relative rotation of the cantilever is smoother and has a damping sense, and the operation stability of relative rotation of the cantilever is improved.

Description

Technical Field

[0001] This utility model belongs to the field of cantilever technology, specifically relating to a disc spring damping arm structure. Background Technology

[0002] The control panel of a die-cutting machine is supported and fixed by a cantilever structure, and must meet the requirements of multi-angle free adjustment, rapid positioning, and long-term load-bearing. Traditional cantilever structures rely on helical springs or rubber bushings to increase damping force. However, when the cantilever structure angle is adjusted, conventional helical springs or rubber bushings are difficult to adapt to different operating forces due to their linear stiffness characteristics, which easily leads to stiff rebound problems, causing panel vibration, self-slipping, or jamming, affecting the smoothness of operation. On the other hand, traditional rubber buffers are prone to aging and cracking, and spring steel is prone to plastic deformation due to stress concentration, resulting in a decrease in cantilever support force. This requires frequent replacement of parts, increasing maintenance costs and affecting production continuity. Utility Model Content

[0003] In order to solve the problems existing in the prior art, this utility model provides a disc spring damping arm structure that enables the cantilever to rotate relative to the frame or control panel, thereby adjusting the position and angle of the control panel. The relative rotation of the cantilever is smoother and has a damping feel, improving the operational stability of the relative rotation of the cantilever.

[0004] The specific technical solution adopted in this utility model is as follows:

[0005] A disc spring damping arm structure includes a cantilever, the end of which is hinged to a connecting component via a first hinge shaft. The connecting component includes a frame. A first disc spring is mounted on the first hinge shaft and is disposed between the cantilever and the connecting component. The end of the first hinge shaft passes through the cantilever or the connecting component and is screwed onto a knob. The knob has a degree of freedom to move axially along the first hinge shaft and forms a pressure adjustment component for the cantilever or the connecting component on the first disc spring.

[0006] A sleeve is fixedly connected to the cantilever, and the sleeve is rotatably fitted onto the first hinge shaft. The first disc spring is disposed between the sleeve and the connecting component, and the end of the first hinge shaft passes through the sleeve and the cantilever to connect with the knob.

[0007] The other end of the first hinge shaft is fixedly connected to the connecting component. The first hinge shaft is provided with a first protrusion located between the connecting component and the sleeve. The first disc spring is disposed between the sleeve and the first protrusion and makes frictional contact with the sleeve and the first protrusion respectively.

[0008] The sleeve is provided with a second protrusion between the cantilever and the knob, and a second disc spring is also fitted on the first hinge shaft. The second disc spring is located between the knob and the second protrusion and makes frictional contact with the knob and the second protrusion respectively.

[0009] A tie rod is provided between the sleeve and the cantilever, and the two ends of the tie rod are respectively connected to the sleeve and the cantilever to form a triangular connection mechanism.

[0010] The pull rod is a turnbuckle, and the two ends of the turnbuckle are respectively hinged to the cantilever and the sleeve by means of a second hinge shaft. The axial direction of the second hinge shaft is perpendicular to the length direction of the cantilever.

[0011] The connecting component also includes an operation panel, and the two ends of the cantilever are respectively connected to the operation panel and the frame.

[0012] The beneficial effects of this utility model are:

[0013] This utility model incorporates a first disc spring between the cantilever and each connecting component. The disc spring has a long service life and does not require frequent replacement. The first disc spring can compensate for manufacturing and assembly errors of the cantilever, the first hinge shaft, and each connecting component through its own elastic deformation. This makes the force on each contact point between the cantilever, the first hinge shaft, and each connecting component more uniform when the cantilever rotates relative to each connecting component around the first hinge shaft, reducing the jamming phenomenon caused by excessive local force, thus making the rotation smoother.

[0014] When the first disc spring is compressed, it generates elastic force. When the cantilever rotates relative to the connecting part, the elastic force of the first disc spring resists the rotation of the cantilever, forming a damping force. This causes the cantilever to be subjected to continuous resistance during relative rotation, thereby generating a damping sensation and increasing the feel and stability of the operation.

[0015] A sleeve is added to the cantilever, and the first disc spring is set between the sleeve and the connecting part. The first disc spring does not directly contact the cantilever, which can avoid wear of the cantilever and extend the service life of the cantilever. The sleeve can also increase the contact area with the first hinge shaft, further improving the stability of the cantilever when rotating relative to the shaft.

[0016] The first hinge shaft is provided with a first protrusion between the connecting component and the sleeve, the first disc spring is provided between the sleeve and the first protrusion, the sleeve is provided with a second protrusion between the cantilever and the knob, and the second disc spring is provided between the knob and the second protrusion to avoid the disc spring from causing wear on the cantilever or the connecting component.

[0017] The two ends of the tie rod are respectively hinged to the sleeve and the cantilever to form a triangular connection mechanism. The tie rod provides support for the cantilever end of the cantilever to prevent it from sagging. The triangular connection mechanism can also enhance the rigidity and stability of the cantilever, improve the load-bearing capacity of the cantilever, and improve the installation stability of the control panel on the cantilever. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the assembly of the control panel and the cantilever.

[0020] Figure 3 This is a schematic diagram of the tie rod structure;

[0021] In the attached diagram, 1 is the cantilever, 2 is the first hinge shaft, 3 is the first disc spring, 4 is the knob, 5 is the sleeve, 6 is the first flange, 7 is the second flange, 8 is the second disc spring, 9 is the pull rod, 10 is the frame, 11 is the control panel, 12 is the second hinge shaft, 13 is the first mounting plate, 14 is the clamp, and 15 is the second mounting plate. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0023] Specific implementation examples Figure 1 , Figure 2 As shown, this utility model relates to a disc spring damping arm structure, including a cantilever 1. The end of the cantilever 1 is hinged to a connecting component via a first hinge shaft 2. The connecting component includes a frame 10. A first disc spring 3 is mounted on the first hinge shaft 2 and is positioned between the cantilever 1 and the connecting component. The end of the first hinge shaft 2 passes through the cantilever 1 or the connecting component and is screwed onto a knob 4. The knob 4 has a degree of freedom to move axially along the first hinge shaft 2 and forms a pressure adjustment component for the cantilever 1 or the connecting component on the first disc spring 3. The connecting component includes a frame 10 and an operation panel 11 respectively located at both ends of the cantilever 1. The cantilever 1 has a degree of freedom to rotate relative to the frame 10 and the operation panel 11 via the first hinge shaft 2.

[0024] A first disc spring 3 is added between the cantilever 1 and each connecting component. The disc spring has a long service life and does not need to be replaced frequently.

[0025] The first disc spring 3 can compensate for manufacturing and assembly errors of the cantilever 1, the first hinge shaft 2, and each connecting component through its own elastic deformation. This makes the force on each contact point between the cantilever 1, the first hinge shaft 2, and each connecting component more uniform when the cantilever 1 rotates relative to each connecting component around the first hinge shaft 2, reducing the jamming phenomenon caused by excessive local force, thus making the rotation smoother. On the other hand, the cantilever 1 will be subjected to some minor impacts or vibrations during the rotation of the cantilever 1 relative to each connecting component around the first hinge shaft 2. The first disc spring 3 can absorb the impact energy and play a buffering role, preventing the impact from being transmitted to each connecting component and causing jamming in the rotation of the cantilever 1 relative to each connecting component, further improving the smoothness of rotation.

[0026] To increase the damping feel, knob 4 rotates on the first hinge shaft 2 and moves axially along the first hinge shaft 2. Knob 4 pushes the cantilever 1 to move towards the connecting component, thereby increasing the pressure of the cantilever 1 and the connecting component on the first disc spring 3, causing the first disc spring 3 to be compressed. Reversing knob 4 can reduce the pressure of the cantilever 1 and the connecting component on the first disc spring 3. When the first disc spring 3 is compressed, it generates elastic force. When the cantilever 1 rotates relative to the connecting component, the elastic force of the first disc spring 3 hinders the rotation of the cantilever 1, forming a damping force. This causes the cantilever 1 to experience continuous resistance during relative rotation, thereby generating a damping feel and increasing the quality and stability of operation.

[0027] Preferably, a sleeve 5 is fixedly connected to the cantilever 1. The sleeve 5 is rotatably fitted onto the first hinge shaft 2. A first disc spring 3 is disposed between the sleeve 5 and the connecting component. The first disc spring 3 does not directly contact the cantilever 1, which can avoid wear on the cantilever 1 and extend its service life. The end of the first hinge shaft 2 passes through the cantilever 1 along the sleeve 5 and connects to the knob 4. The sleeve 5 also avoids direct contact between the cantilever 1 and the first hinge shaft 2, thus preventing wear. It also increases the contact area between the sleeve 5 and the first hinge shaft 2, resulting in greater friction and a more uniform and stable support, further improving the stability of the cantilever 1 during relative rotation. The sleeve 5 and the cantilever 1 are detachably connected. When the sleeve 5 wears out due to long-term operation, only a new sleeve 5 needs to be replaced, without replacing the entire cantilever 1, which helps control maintenance costs.

[0028] The other end of the first hinge shaft 2 is fixedly connected to the connecting component. A first protruding edge 6 is provided on the first hinge shaft 2, located between the connecting component and the sleeve 5. A first disc spring 3 is disposed between the sleeve 5 and the first protruding edge 6, and makes frictional contact with both the sleeve 5 and the first protruding edge 6. The first disc spring 3 does not directly contact the connecting component, thus avoiding wear on the connecting component and extending its service life. The first protruding edge 6 is connected to the connecting component by bolts. When the first hinge shaft 2 wears, it can be quickly disassembled using bolts, facilitating the replacement of the first hinge shaft 2.

[0029] A second protruding edge 7 is provided on the sleeve 5 between the cantilever 1 and the knob 4. The second protruding edge 7 isolates the knob 4 from the cantilever 1, preventing the knob 4 from acting directly on the cantilever 1 and preventing wear on the cantilever 1. A second disc spring 8 is also fitted on the first hinge shaft 2. The second disc spring 8 is located between the knob 4 and the second protruding edge 7 and makes frictional contact with the knob 4 and the second protruding edge 7 respectively. The addition of the second disc spring 8 can evenly distribute the pressure applied by the knob 4, avoiding local stress concentration. The elastic deformation of the second disc spring 8 can effectively counteract the loosening tendency caused by vibration and maintain the knob locking force. This not only further improves the stability and damping feel of the cantilever 1 when rotating relative to each other, but also improves the reliability of the connection between the cantilever 1 and the connecting parts.

[0030] A tie rod 9 is provided between the sleeve 5 and the cantilever 1. In this embodiment, the tie rod 9 is located below the cantilever 1 to achieve a reasonable layout of space and structure. The two ends of the tie rod 9 are respectively connected to the sleeve 5 and the cantilever 1 to form a triangular connection mechanism. According to the principle of triangle stability, it can enhance the rigidity and stability of the cantilever 1 and improve the load-bearing capacity of the cantilever 1. The end of the cantilever 1 connected to the operation panel 11 is the cantilever end. The tie rod 9 provides support for the cantilever end of the cantilever 1 to prevent the cantilever end from sagging.

[0031] like Figure 3 As shown, the pull rod 9 is a turnbuckle with an adjustable length. By adjusting the overall length of the turnbuckle, stable support is provided to the end of the cantilever 1 connected to the operating panel 11. A first mounting plate 13 is fixed on the cantilever 1, and a second mounting plate 15 is welded to a clamp 14. The clamp 14 encircles the sleeve 5, and the sleeve 5 is fixed to the second mounting plate 15 via the clamp 14. The two ends of the turnbuckle are hinged to the first mounting plate 13 on the cantilever 1 and the second mounting plate 15 on the sleeve 5 via a second hinge shaft 12, respectively. The axial direction of the second hinge shaft 12 is perpendicular to the length direction of the cantilever 1. The hinged design facilitates the adjustment of the turnbuckle length so that the turnbuckle provides upward support to the cantilever end of the cantilever 1. When the sleeve 5 needs to be replaced, the clamp 14 is opened and removed from the sleeve 5, thus separating the turnbuckle from the sleeve 5.

Claims

1. A disc spring damping arm structure, comprising a cantilever (1), wherein the end of the cantilever (1) is hinged to a connecting component via a first hinge shaft (2), the connecting component comprising a frame (10), characterized in that: A first disc spring (3) is fitted on the first hinge shaft (2). The first disc spring (3) is located between the cantilever (1) and the connecting component. The end of the first hinge shaft (2) passes through the cantilever (1) or the connecting component and is screwed with a knob (4). The knob (4) has the freedom to move along the axial direction of the first hinge shaft (2) and forms a pressure adjustment component for the cantilever (1) or the connecting component on the first disc spring (3).

2. The disc spring damping arm structure according to claim 1, characterized in that: A sleeve (5) is fixedly connected to the cantilever (1). The sleeve (5) is rotatably mounted on the first hinge shaft (2). The first disc spring (3) is located between the sleeve (5) and the connecting component. The end of the first hinge shaft (2) passes through the cantilever (1) along the sleeve (5) and is connected to the knob (4).

3. The disc spring damping arm structure according to claim 2, characterized in that: The other end of the first hinge shaft (2) is fixedly connected to the connecting component. The first hinge shaft (2) is provided with a first protruding edge (6) located between the connecting component and the sleeve (5). The first disc spring (3) is located between the sleeve (5) and the first protruding edge (6) and makes frictional contact with the sleeve (5) and the first protruding edge (6) respectively.

4. The disc spring damping arm structure according to claim 2, characterized in that: The sleeve (5) is provided with a second protrusion (7) located between the cantilever (1) and the knob (4), and a second disc spring (8) is also fitted on the first hinge shaft (2). The second disc spring (8) is located between the knob (4) and the second protrusion (7) and makes frictional contact with the knob (4) and the second protrusion (7) respectively.

5. The disc spring damping arm structure according to claim 2, characterized in that: A tie rod (9) is provided between the sleeve (5) and the cantilever (1), and the two ends of the tie rod (9) are respectively connected to the sleeve (5) and the cantilever (1) to form a triangular connection mechanism.

6. The disc spring damping arm structure according to claim 5, characterized in that: The pull rod (9) is a turnbuckle. The two ends of the turnbuckle are respectively hinged to the cantilever (1) and the sleeve (5) by means of the second hinge shaft (12). The axial direction of the second hinge shaft (12) is perpendicular to the length direction of the cantilever (1).

7. The disc spring damping arm structure according to claim 1, characterized in that: The connecting component also includes an operation panel (11), and the two ends of the cantilever (1) are connected to the operation panel (11) and the frame (10) respectively.

Images