Riveting mechanism
By designing the base, drive assembly, limit plate, and contouring tooling of the riveting mechanism, high-precision riveting of tubular parts is achieved, solving the problem of insufficient riveting force and precision in existing technologies, ensuring that the parts are not damaged and that the dimensional accuracy meets the requirements of the next assembly step.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SILING INTELLIGENT ROBOT TECH (KUNSHAN) CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-06-26
AI Technical Summary
Existing riveting mechanisms cannot meet the force and precision requirements for riveting tubular parts, resulting in damage to the parts or dimensions that do not meet the requirements for subsequent assembly.
A riveting mechanism is designed, including a base, a drive assembly, a limiting plate, a contouring fixture, and a rivet claw assembly. The rotation of the contouring fixture drives the rivet claw assembly to move in a preset direction, and the position is limited by a return spring and a sealing plate. Combined with gear transmission, the riveting pressure is precisely controlled.
It achieves high-precision riveting of tubular parts, ensuring that the parts are not damaged and that the dimensional accuracy meets the requirements of the next assembly step, thus improving riveting efficiency and accuracy.
Smart Images
Figure CN224406248U_ABST
Abstract
Description
Technical Field
[0001] This disclosure relates to a riveting mechanism, belonging to the field of automation equipment technology. Background Technology
[0002] In the field of mechanical assembly, the connection method between parts has always been a key factor in the effectiveness and reliability of assembly. Riveting is an irreversible connection method with various different modes of action, such as rotary riveting, punch riveting, snap riveting, and press riveting. Whether riveted connections are effective and reliable significantly restricts the development of assembly technology.
[0003] Especially for the riveting assembly of tubular parts, there are strict requirements for the force and precision. On the one hand, the pressure must be appropriate so as not to damage the parts; on the other hand, the dimensional accuracy after riveting must be ensured to meet the requirements of the next assembly step.
[0004] However, existing riveting mechanisms often fail to meet these requirements. Therefore, there is an urgent need to design a new riveting mechanism to solve these problems. Utility Model Content
[0005] This disclosure provides a riveting mechanism.
[0006] According to one aspect of this disclosure, a riveting mechanism is provided, comprising:
[0007] Base;
[0008] A drive component, disposed on the base, is used to provide driving force;
[0009] A limiting plate, wherein the limiting plate is disposed on the base;
[0010] A contouring fixture is rotatably mounted on the base, and the drive assembly is used to drive the contouring fixture to rotate.
[0011] A rivet claw assembly, which can be guided by the limiting plate and move in a preset direction, wherein when the contouring fixture reciprocates, the rivet claw assembly can reciprocate in the preset direction.
[0012] According to at least one embodiment of the riveting mechanism of the present disclosure, the contouring tooling has a rotation axis, and the rivet claw assemblies are configured as a plurality of rivet claw assemblies, which are circumferentially distributed along the rotation axis.
[0013] According to at least one embodiment of the riveting mechanism of this disclosure, the limiting plates are configured as a plurality of plates, which are circumferentially distributed along the rotation axis, such that a rivet claw assembly is present between two limiting plates.
[0014] According to at least one embodiment of the riveting mechanism of the present disclosure, the contouring fixture has an inner surface on which a plurality of driving surfaces are formed, each driving surface being used to drive a rivet claw assembly, wherein when the contouring fixture is driven and rotated, the rivet claw assembly engages with different positions of the driving surfaces, causing the rivet claw assembly to move in a direction approaching or away from the axis of rotation.
[0015] The riveting mechanism according to at least one embodiment of the present disclosure further includes a sealing plate, which is fixed to a limiting plate and restricts the position of the rivet assembly in the direction of the rotation axis.
[0016] The riveting mechanism according to at least one embodiment of the present disclosure further includes:
[0017] A spring baffle is disposed on the base, and a return spring is provided between the spring baffle and the rivet claw assembly. The return force provided by the return spring is used to make the rivet claw assembly move in a direction away from the rotation axis.
[0018] According to at least one embodiment of the riveting mechanism of this disclosure, the rivet claw assembly includes:
[0019] A connector disposed between two limiting plates;
[0020] A rolling element is disposed at one end of the connector and engages with the drive surface.
[0021] A rivet claw component, wherein the rivet claw component is disposed at the other end of the connector;
[0022] The connector has an elongated hole in the middle, the spring baffle is located in the elongated hole, and the reset spring is provided between the spring baffle and the side wall of the elongated hole.
[0023] According to at least one embodiment of the riveting mechanism of this disclosure, both the rivet claw assembly and the limiting plate are configured to be six in number.
[0024] According to at least one embodiment of the riveting mechanism of this disclosure, both the rivet claw assembly and the limiting plate are configured to be uniformly distributed circumferentially along the axis of rotation.
[0025] According to at least one embodiment of the riveting mechanism of the present disclosure, the outer periphery of the contouring tool is provided with a driven toothed portion, and the output shaft of the drive assembly is provided with a drive gear, the drive gear cooperating with the driven toothed portion to drive the contouring tool to rotate. Attached Figure Description
[0026] The accompanying drawings illustrate exemplary embodiments of the present disclosure and, together with the description thereof, serve to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification.
[0027] Figure 1 This is a schematic diagram of the riveting mechanism according to one embodiment of the present disclosure.
[0028] Figure 2 This is a schematic diagram of a riveting mechanism in a non-riveting state according to one embodiment of the present disclosure.
[0029] Figure 3 This is a schematic diagram of a riveting mechanism in a riveting state according to one embodiment of the present disclosure.
[0030] Figure 4 This is a schematic diagram of a riveting mechanism in a non-riveting state according to one embodiment of the present disclosure.
[0031] Figure 5 This is a schematic diagram of a riveting mechanism in a riveting state according to one embodiment of the present disclosure.
[0032] Figure 6 This is a schematic diagram of the structure of a rivet assembly according to one embodiment of the present disclosure.
[0033] The specific labels in the attached figures are as follows:
[0034] 100 Riveting Mechanism
[0035] 110 Base
[0036] 120 drive components
[0037] 130 limit plate
[0038] 140 Contouring Fixture
[0039] 141 Driven tooth profile
[0040] 142 Driving Surface
[0041] 150 Rivet Claw Assembly
[0042] 151 Connector
[0043] 152 Rolling element
[0044] 153 Rivet claw component
[0045] 160 sealing plate
[0046] 170 Spring Baffle
[0047] 180° return spring. Detailed Implementation
[0048] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the disclosure. Furthermore, it should be noted that, for ease of description, only the parts relevant to the present disclosure are shown in the accompanying drawings.
[0049] It should be noted that, where there is no conflict, the embodiments and features described in this disclosure can be combined with each other. The technical solutions of this disclosure will now be described in detail with reference to the accompanying drawings and embodiments.
[0050] Unless otherwise stated, the exemplary implementations / embodiments shown are to be understood as providing exemplary features of various details that provide ways in which the technical concepts of this disclosure can be implemented in practice. Therefore, unless otherwise stated, the features of various implementations / embodiments may be additionally combined, separated, interchanged and / or rearranged without departing from the technical concepts of this disclosure.
[0051] Figure 1 This is a structural schematic diagram of a riveting mechanism 100 according to one embodiment of the present disclosure. Figure 2 This is a schematic diagram of the riveting mechanism 100 in a non-riveting state according to one embodiment of the present disclosure. Figure 3 This is a schematic diagram of a riveting mechanism in a riveting state according to one embodiment of the present disclosure. Figure 4 This is a schematic diagram of the riveting mechanism 100 in a non-riveting state according to one embodiment of the present disclosure. Figure 5 This is a schematic diagram of a riveting mechanism in a riveting state according to one embodiment of the present disclosure.
[0052] like Figures 1 to 5 As shown, the riveting mechanism 100 disclosed herein includes a base 110, a drive assembly 120, a limiting plate 130, a contouring fixture 140, and a rivet claw assembly 150, among other structures.
[0053] The base 110 of the riveting mechanism disclosed herein can be installed on equipment such as the ground and can form a mounting base for other components.
[0054] A drive assembly 120 is disposed on the base 110 and is used to provide driving force. In one specific embodiment, the drive assembly 120 may include a motor or a reducer or other components. The output shaft of the drive assembly 120 may have a horizontal axis. More preferably, the output shaft of the drive assembly 120 may be located on one side of the base 110.
[0055] The limiting plate 130 is disposed on the base 110. Specifically, the limiting plate 130 can be directly disposed on the base 110 or indirectly disposed on the base 110. For example, the limiting plate 130 can be first fixed to the intermediate plate, and then the intermediate plate can be fixed to the base 110, thereby allowing the limiting plate 130 to be indirectly fixed to the base 110.
[0056] In one specific embodiment, the limiting plate 130 is formed in a generally triangular shape, and its quantity can be set to six. Those skilled in the art will understand that the number of the limiting plates 130 can be set to other quantities depending on the requirements of the part being processed, and this disclosure does not limit this.
[0057] The six triangular limiting plates 130 are evenly distributed circumferentially along the rotation axis described below. Moreover, each pair of triangular limiting plates 130 is spaced apart, thereby forming a total of 6 gaps between these limiting plates 130. The rivet claw assembly 150 described below can be placed in these gaps, and the sidewalls of the limiting plates 130 can guide the movement of the rivet claw assembly 150.
[0058] The contouring tool 140 is rotatably mounted on the base 110, and the drive assembly 120 is used to drive the contouring tool 140 to rotate. Thus, the contouring tool 140 of this disclosure has a rotation axis. In one specific embodiment, the contouring tool 140 is formed as a generally annular structure, and at least a portion of the outer peripheral surface of the annular structure is provided with a driven toothed portion 141, which can engage with a drive gear disposed on the output shaft of the drive assembly 120 to drive the contouring tool 140 to rotate via the drive assembly 120.
[0059] The drive assembly 120 of this disclosure can drive the contouring fixture 140 to reciprocate. Specifically, during each riveting operation, the rotation angle of the contouring fixture does not exceed 60°. Figure 4 For example, the contouring fixture 140 will rotate counterclockwise by no more than 60° and then rotate to... Figure 5 The riveting operation was completed at the position shown.
[0060] Furthermore, after the riveting mechanism completes the riveting operation, the drive assembly 120 can drive the contouring fixture 140 to reset. Specifically, with Figure 5 For example, the contouring fixture 140 will rotate clockwise by no more than 60° and then rotate to... Figure 4 The position shown indicates that the riveting mechanism has been reset, and the next riveting operation can be performed in this state.
[0061] In one specific embodiment, the contouring fixture 140 has an inner surface on which a plurality of driving surfaces 142 are formed. Each driving surface 142 is used to drive a rivet claw assembly 150. When the contouring fixture 140 is driven and rotated, the rivet claw assembly 150 engages with different positions of the driving surfaces 142, causing the rivet claw assembly 150 to move in a direction close to or away from the axis of rotation.
[0062] In other words, the driving surface 142 of this disclosure is formed as a cam surface. Figure 4 In the state shown, when the contouring fixture 140 rotates counterclockwise, it can drive the rivet claw assembly 150 to move in a direction close to the axis of rotation. Figure 5 As shown, when the contouring fixture 140 rotates clockwise, it allows the rivet claw assembly 150 to move in a direction away from the rotation axis. At this time, the rivet claw assembly can move away from the rotation axis under the action of the return spring 180 and reset.
[0063] The rivet claw assembly 150 of this disclosure can be guided by the limiting plate 130 and move in a preset direction. When the contouring fixture 140 reciprocates, it enables the rivet claw assembly 150 to reciprocate in the preset direction. Specifically, the preset direction of this disclosure is a direction that is close to or away from the axis of rotation.
[0064] The rivet claw assembly 150 of this disclosure can be positioned between two limiting plates 130, and the side wall of the rivet claw assembly 150 (e.g., the side wall of the connector 151 of the rivet claw assembly 150) can contact the side surface of the limiting plate 130 and can slide relative to the side surface of the limiting plate 130, thereby guiding the rivet claw assembly 150 of this disclosure to the two limiting plates 130.
[0065] The riveting mechanism 100 disclosed herein also includes a sealing plate 160, which is fixed to the limiting plate 130 and restricts the position of the rivet claw assembly 150 in the direction of rotation axis. In other words, the sealing plate 160 prevents the rivet claw assembly 150 from disengaging between the two limiting plates 130. Furthermore, the sealing plate 160 also provides a guiding function for the movement of the rivet claw assembly 150.
[0066] In this disclosure, the riveting mechanism 100 further includes a spring baffle 170, which is disposed on the base 110, and a return spring 180 is disposed between the spring baffle 170 and the rivet claw assembly 150. The return force provided by the return spring 180 is used to make the rivet claw assembly 150 move in a direction away from the rotation axis.
[0067] Figure 6 This is a schematic diagram of the structure of a rivet assembly according to one embodiment of the present disclosure.
[0068] like Figure 6 As shown, the rivet assembly 150 includes components such as a connector 151, a rolling element 152, and a rivet part 153.
[0069] The connector 151 is disposed between the two limiting plates 130; and the connector 151 has an elongated hole in the middle, the spring baffle 170 is located in the elongated hole, and a reset spring 180 is disposed between the spring baffle 170 and the side wall of the elongated hole.
[0070] For example, the return spring 180 can be set at a position away from the rotation axis of the spring baffle 170. At this time, the return spring 180 can be in a pre-compressed state, thereby the return spring 180 can apply a radially outward force to the connector 151. Thus, under the action of the elastic force of the return spring 180, the rivet assembly 150 can move radially outward (i.e., move in a direction away from the rotation axis).
[0071] Meanwhile, during the riveting process, the spring force of the return spring 180 can also produce a certain buffering effect, resulting in better riveting effect and accurate control of riveting pressure.
[0072] The rolling element 152 of this disclosure is disposed at one end of the connector 151, and the rolling element 152 cooperates with the drive surface 142; thereby, the friction of the entire riveting mechanism 100 is reduced by the cooperation between the rolling element 152 and the drive surface 142.
[0073] The rivet claw component 153 is disposed at the other end of the connector 151; and the riveting of the workpiece to be processed is achieved through the cooperation between the rivet claw component 153 and the workpiece to be processed.
[0074] Based on the above structure, the riveting mechanism 100 of this disclosure, in use, can synchronously drive the movement of each rivet claw assembly through the rotation of the contouring fixture, thereby completing the riveting operation on the workpiece; the rotation of the contouring fixture can be controlled with high precision, thereby effectively controlling the riveting pressure applied to the workpiece by the rivet claw assembly, ensuring that the workpiece is not damaged. Moreover, the workpiece processed by the riveting mechanism of this disclosure has high dimensional accuracy and can meet the requirements of the next assembly step.
[0075] Furthermore, the riveting mechanism disclosed herein utilizes the cam principle for riveting action, enabling precise control of the entire riveting process. The use of gear transmission significantly improves transmission efficiency and facilitates control over riveting accuracy. The use of six sets of rivet claw assemblies 150 in conjunction with contouring fixtures ensures a more uniform and reliable riveting area.
[0076] In the description of this specification, the references to terms such as "one embodiment / mode," "some embodiments / modes," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment / mode or example is included in at least one embodiment / mode or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment / mode or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments / modes or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments / modes or examples described in this specification, as well as the features of different embodiments / modes or examples.
[0077] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0078] Those skilled in the art should understand that the above embodiments are merely for illustrating the present disclosure and are not intended to limit the scope of the disclosure. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of the present disclosure.
Claims
1. A riveting mechanism, characterized in that, include: Base; A drive component, disposed on the base, is used to provide driving force; A limiting plate, wherein the limiting plate is disposed on the base; A contouring fixture is rotatably mounted on the base, and the drive assembly is used to drive the contouring fixture to rotate. A rivet claw assembly, which can be guided by the limiting plate and move in a preset direction, wherein when the contouring fixture reciprocates, the rivet claw assembly can reciprocate in the preset direction.
2. The riveting mechanism according to claim 1, characterized in that, The contouring fixture has a rotation axis, and multiple rivet claw assemblies are provided, which are distributed circumferentially along the rotation axis.
3. The riveting mechanism according to claim 2, characterized in that, The limiting plates are configured as a plurality of plates, which are distributed circumferentially along the rotation axis, and a rivet assembly is provided between two limiting plates.
4. The riveting mechanism according to claim 3, characterized in that, The contouring fixture has an inner surface with multiple driving surfaces, each driving surface driving a rivet claw assembly. When the contouring fixture is driven and rotated, the rivet claw assembly engages with different positions of the driving surfaces, causing the rivet claw assembly to move in a direction close to or away from the axis of rotation.
5. The riveting mechanism according to claim 4, characterized in that, It also includes a sealing plate, which is fixed to the limiting plate and restricts the position of the rivet assembly in the direction of the rotation axis.
6. The riveting mechanism according to claim 4, characterized in that, Also includes: A spring baffle is disposed on the base, and a return spring is provided between the spring baffle and the rivet claw assembly. The return force provided by the return spring is used to make the rivet claw assembly move in a direction away from the rotation axis.
7. The riveting mechanism according to claim 6, characterized in that, The rivet assembly includes: A connector disposed between two limiting plates; A rolling element is disposed at one end of the connector and engages with the drive surface. A rivet claw component, wherein the rivet claw component is disposed at the other end of the connector; The connector has an elongated hole in the middle, the spring baffle is located in the elongated hole, and the reset spring is provided between the spring baffle and the side wall of the elongated hole.
8. The riveting mechanism according to claim 4, characterized in that, The number of rivet claw assemblies and limiting plates is set to six.
9. The riveting mechanism according to claim 4, characterized in that, Both the rivet assembly and the limiting plate are configured to be evenly distributed circumferentially along the rotation axis.
10. The riveting mechanism according to claim 1, characterized in that, The outer periphery of the contouring tool is provided with a driven toothed portion, and the output shaft of the drive assembly is provided with a drive gear. The drive gear cooperates with the driven toothed portion to drive the contouring tool to rotate.