Rivet riveting device

Abstract

The utility model discloses a rivet riveting device which comprises a spin riveting machine, and a rivet head is arranged on the spin riveting machine. A rivet head fixing block is arranged at the lower end of the spin riveting machine, and a first cavity allowing a rivet head to be vertically placed is formed in the rivet head fixing block. A rivet head limiting block is arranged below the rivet head fixing block, a channel allowing a rivet head to be vertically placed is formed in the rivet head limiting block, the rivet head fixing block and the rivet head limiting block are connected through a buffering mechanism, and a displacement sensor for sensing the vertical position of the rivet head limiting block is fixedly arranged on one side of the rivet head fixing block. A pressing head is arranged on the lower end face of the rivet head limiting block, and a second cavity allowing the rivet head to be vertically placed is formed in the pressing head. Through the arrangement of the buffer mechanism between the rivet head fixing block and the rivet head limiting block and the cooperation of the pressing head and the rivet head, the displacement sensor can accurately sense the displacement change between the rivet head and the pressing head to sense whether the rivet is placed or not, the position and the exposed height state of the rivet.

Description

TECHNICAL FIELD

[0001] The utility model belongs to riveting technical field relates to a rivet riveting device. BACKGROUND

[0002] The spin riveting equipment is a special equipment for connecting metal parts, which mainly presses the rivet into the connected material by rotating to make the material deform plastically, thereby realizing firm connection. The working process is usually to insert the rivet into the part hole to be connected, and then to apply pressure to the rivet by the rotating rivet head to make one end of the rivet expand and tightly combine with the part.

[0003] However, the existing rivet riveting device has some significant problems in actual application. In the rivet assembly process, the method of continuously knocking the rivet head to deform it to achieve riveting is not only traditional, but also highly dependent on the operation skill of workers. Since it is impossible to accurately predict whether the rivet stamping is qualified, it completely relies on the experience and skill of workers, which leads to unstable riveting quality.

[0004] The product riveting has strict requirements on the height of the rivet, and only the height not higher than the predetermined height is considered qualified. However, the existing device lacks effective detection and prediction mechanism, and after the stamping is completed, additional rivet height detection is required for the product. If the height is found to be unqualified, the rivet stamping needs to be performed again, which undoubtedly increases the production process and time cost, and reduces the production efficiency. Moreover, multiple stamping may cause damage to the plate, affecting the overall quality and performance of the product.

[0005] Therefore, it is necessary to improve the existing technology to overcome the defects in the prior art. CONTENT OF THE UTILITY MODEL

[0006] The utility model aims at providing a rivet riveting device, which is improved in structure to sense the height state of the rivet during riveting, thereby solving the technical problems mentioned in the background art.

[0007] The utility model aims at realizing the following technical scheme:

[0008] A rivet riveting device, comprising a spin riveting machine, wherein a rivet head is arranged on the spin riveting machine; characterized in that a rivet head fixing block is arranged at the lower end of the spin riveting machine, a first cavity for vertically placing the rivet head is arranged in the rivet head fixing block; a rivet head limiting block is arranged below the rivet head fixing block, a channel for vertically placing the rivet head is arranged in the rivet head limiting block, a buffer mechanism is connected between the rivet head fixing block and the rivet head limiting block, a displacement sensor for sensing the up-down position of the rivet head limiting block is arranged on one side of the rivet head fixing block, a pressure head is arranged at the lower end surface of the rivet head limiting block, and a second cavity for vertically placing the rivet head is arranged in the pressure head.

[0009] As a further improvement of an embodiment of the present application, the shell of the riveting machine is a vertical surface, and the vertical surface is provided with a mounting hole connected with the moving module.

[0010] As a further improvement of an embodiment of the present application, the buffer mechanism comprises a plurality of guide assemblies and elastic assemblies, the guide assemblies and the elastic assemblies are arranged at intervals and distributed in a circumferential array on the riveting head limiting block and the riveting head fixing block.

[0011] As a further improvement of an embodiment of the present application, the guide assembly comprises a sliding rod fixed on the riveting head fixing block and a sliding sleeve fixed on the riveting head limiting block, the lower end of the sliding rod is provided with a sliding block and is inserted into the sliding sleeve, and the upper end of the sliding sleeve is provided with a sealing plate limiting the upward movement of the sliding block.

[0012] As a further improvement of an embodiment of the present application, the riveting head fixing block is provided with a first groove for inserting the upper end of the sliding sleeve.

[0013] As a further improvement of an embodiment of the present application, the elastic assembly comprises a countersunk screw, the countersunk screw passes through the riveting head limiting block from bottom to top and is fixed on the riveting head fixing block, and the countersunk screw is arranged in sliding mode between the riveting head limiting block and the riveting head fixing block; a spring is sleeved on the countersunk screw between the riveting head fixing block and the riveting head limiting block, the upper end of the spring abuts against the riveting head fixing block, and the lower end of the spring abuts against the riveting head limiting block.

[0014] As a further improvement of an embodiment of the present application, the riveting head fixing block is provided with a second groove for inserting the upper end of the spring.

[0015] As a further improvement of an embodiment of the present application, the pressure head is located in the region enclosed by the buffer mechanism and is detachably mounted on the pressure head riveting head limiting block through a screw.

[0016] As a further improvement of an embodiment of the present application, the pressure head has a structure of being wide at the upper end and narrow at the lower end, and a notch is arranged at one side of the lower end of the pressure head, and the notch exposes the lower end of the second cavity.

[0017] As a further improvement of an embodiment of the present application, the riveting head fixing block is provided with a sensor mounting table, the sensor mounting table is provided with a sensor head mounting bracket, and the displacement sensor is arranged on the sensor head mounting bracket.

[0018] By means of the above technical scheme, the following beneficial effects are achieved: through the setting of the buffer mechanism between the rivet fixing block and the rivet limiting block, the displacement sensor can accurately sense the displacement change between the rivet and the pressure head to perceive whether the rivet is placed, the position and the height state of the rivet exposed, by means of the cooperation of the pressure head and the rivet; no matter how the height of the rivet changes, the rivet riveting device can make corresponding adjustment according to the detected height information, so as to realize the riveting operation on the rivet of different heights. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only exemplary, and for those skilled in the art, other drawings can be derived from the provided drawings without creative labor.

[0020] The structures, proportions, sizes, etc. shown in the specification are only used to cooperate with the content disclosed in the specification, to be understood and read by those skilled in the art, and are not used to limit the limiting conditions that can be implemented by the present application, so they do not have technical substantive significance. Any modification of structure, change of proportion relationship or adjustment of size, without affecting the effects and purposes that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application.

[0021] Figure 1 The present application provides a three-dimensional structure schematic diagram.

[0022] Figure 2 The present application provides a right view structure schematic diagram.

[0023] Figure 3 The present application provides a Figure 2 The present application provides a sectional view structure schematic diagram along the direction of A-A.

[0024] Figure 4 The present application provides a rivet limiting block and its surrounding structure schematic diagram.

[0025] In the figure:

[0026] 1-rotary riveting machine; 11-vertical plane;

[0027] 2-rivet;

[0028] 3-rivet fixing block; 31-sensor mounting table;

[0029] 4-rivet limiting block;

[0030] 5-displacement sensor;

[0031] 6 - ram; 61 - notch;

[0032] 7 - guide assembly; 71 - slide bar; 72 - slide sleeve;

[0033] 8 - elastic assembly; 81 - countersunk screw; 82 - spring;

[0034] 9 - rivet tool chuck. DETAILED DESCRIPTION

[0035] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0036] It should be noted that, unless otherwise specified, all technical and scientific terms used in the present application have the same meaning as generally understood by those skilled in the art to which the present application belongs.

[0037] In the present application, unless otherwise stated, the orientation words such as "upper, lower, top, bottom" are generally directed to the direction shown in the drawings, or are directed to the vertical, perpendicular or gravity direction of the components themselves; similarly, for the convenience of understanding and description, "inner, outer" refers to the inner and outer of the contour of each component itself, but the above orientation words are not used to limit the present application. EMBODIMENT

[0038] Referring to Figures 1-4 The rivet riveting device shown in the figure, including a rivet machine 1, the rivet machine 1 is connected with the rivet head 2 through the rivet tool chuck 9. The lower end of the rivet machine 1 is provided with a rivet head fixing block 3, and the first cavity for vertically placing the rivet head 2 is arranged in the rivet head fixing block 3; the lower side of the rivet head fixing block 3 is provided with a rivet head limiting block 4. The rivet head limiting block 4 is also provided with a channel for vertically placing the rivet head 2, which cooperates with the first cavity of the rivet head fixing block 3 to jointly ensure the movement of the rivet head in the vertical direction. The buffer mechanism is connected between the rivet head fixing block 3 and the rivet head limiting block 4, which can absorb and alleviate the impact force generated when the rivet head moves during riveting, reduce the vibration and wear of the device, prolong the service life of the device, and also help to improve the stability and quality of riveting. The displacement sensor 5 for sensing the up-down position of the rivet head limiting block 4 is fixedly arranged on one side of the rivet head fixing block 3, which can accurately master the movement state of the rivet head 2 in the riveting process by monitoring the position change of the rivet head limiting block 4 in real time, and provide accurate data basis for subsequent control and adjustment. The lower end surface of the rivet head limiting block 4 is provided with a ram 6, and the second cavity for vertically placing the rivet head 2 is arranged in the ram 6. During use, the ram 6 first contacts the reference surface, and then the rivet head contacts the rivet. Through this process, the displacement sensor 5 can detect the height of the rivet, so that the rivet riveting device can rivet rivets of different heights.

[0039] Further, the rivet head fixing block 3 has a sensor mounting table 31. A sensor head mounting bracket is arranged on the sensor mounting table 31, which provides a stable and accurate mounting position for the displacement sensor 5. The displacement sensor 5 is fixedly mounted on the sensor head mounting bracket, ensuring that it can accurately sense the position change between the rivet head 2 and the pressure head 6.

[0040] The motor on the spin riveter 1 in this embodiment can provide stable rotary motion, providing the necessary rotary power for rivet riveting operation. A series cylinder is arranged in the transmission part of the spin riveter 1, which is mainly responsible for providing up and down motion, cooperating with the rotary motion of the motor to complete the rivet riveting.

[0041] It is worth mentioning that the shell of the spin riveter 1 is a vertical surface 11, and the mounting hole connected with the moving module is arranged on the vertical surface 11. Through these mounting holes, the rivet riveting device can be reliably connected with the moving module. This connection mode enables the entire device to flexibly adjust the riveting position according to actual needs during operation, greatly improving the adaptability and accuracy of riveting operation, meeting the riveting requirements of different workpieces and different positions.

[0042] The buffer mechanism in this embodiment is an important component to ensure the stable operation of the rivet riveting device. It is mainly composed of a plurality of guide assemblies 7 and elastic assemblies 8, which are arranged in a spaced and circumferentially arrayed manner, uniformly distributed between the rivet head limiting block 4 and the rivet head fixing block 3. This distribution mode can ensure that the buffer force in each direction is uniform during the movement of the rivet head, thereby effectively reducing equipment wear and movement deviation caused by uneven force.

[0043] And the number of guide assemblies 7 and elastic assemblies 8 in this embodiment is the same, which further ensures the balance and stability of the buffering effect.

[0044] Specifically, the guide assembly 7 includes a sliding rod 71 fixed on the rivet head fixing block 3, a sliding sleeve 72 fixed on the rivet head limiting block 4, and a sliding block at the lower end of the sliding rod 71 inserted into the sliding sleeve 72. This design enables the sliding rod 71 and the sliding sleeve 72 to slide relative to each other, thereby guiding and limiting displacement during rivet head movement. The upper end of the sliding sleeve 72 is provided with a sealing plate to limit the upward movement of the sliding block. Through such a structural design, the position stability of the rivet head during movement is further ensured, preventing the rivet head from excessive upward displacement and affecting the riveting effect or causing damage to the equipment.

[0045] Preferably, the rivet head fixing block 3 is provided with a first groove for the upper end of the sliding sleeve 72 to insert into. Such a design makes the connection between the sliding sleeve 72 and the rivet head fixing block 3 more secure and stable, further optimizing the structure of the guide assembly and helping to improve the reliability and accuracy of the entire device during operation.

[0046] The elastic assembly 8 in this embodiment is mainly composed of a countersunk screw 81 and a spring 82. The countersunk screw 81 passes through the rivet limiting block 4 from bottom to top and is fixed on the rivet head fixing block 3, wherein the countersunk screw 81 and the rivet limiting block 4 are slidably arranged. The spring 82 is sleeved on the countersunk screw 81 between the rivet head fixing block 3 and the rivet limiting block 4. When the rivet moves, the spring 82 will exert its elastic effect. The upper end of the spring 82 abuts against the rivet head fixing block 3, and the lower end abuts against the rivet limiting block 4. When the rivet is impacted or moves, the spring 82 will compress or stretch according to the force condition, and absorb and release energy through its elastic deformation, thereby playing a buffering role and reducing the vibration and impact force generated during the rivet movement.

[0047] Preferably, the rivet head fixing block 3 is provided with a second groove for the upper end of the spring 82 to insert into. Such a design enables the upper end of the spring 82 to be more stably positioned on the rivet head fixing block 3, enhancing the stability and reliability of the spring during operation and further optimizing the performance of the elastic assembly, ensuring the buffering effect of the device.

[0048] The ram 6 in this embodiment is located within the area enclosed by the buffering mechanism, which helps it to cooperate with other components during operation. The ram 6 is detachably installed on the rivet limiting block 4 by screws. During installation, appropriate screws are selected and accurately screwed into the screw holes pre-provided on the rivet limiting block 4 and the ram 6 to ensure firm connection. This detachable design facilitates the replacement and maintenance of the ram 6, improving the maintainability of the device.

[0049] The ram 6 in this embodiment presents a wide-top-narrow-bottom shape, which helps to guide the movement of the rivet to some extent and provides better stability. A notch 61 is provided on one side of the lower end of the ram 6, which exposes the lower end of the second cavity. Such a design may be to facilitate certain operations during riveting, such as observing the position of the rivet or facilitating cooperation with other components, improving the functionality and practicality of the entire device.

[0050] The rivet riveting device of the utility model provides a stable foundation for the operation of the entire device through the careful arrangement of the buffering mechanism between the rivet head fixing block 3 and the rivet limiting block 4. The guide assembly and the elastic assembly in the buffering mechanism cooperate with each other, not only effectively relieving the impact force generated when the rivet moves, but also ensuring the stability and accuracy of the rivet during movement.

[0051] At the same time, with the close cooperation of the pressure head 6 and the riveting head, the displacement sensor 5 can accurately sense the displacement change between the riveting head 2 and the pressure head 6. In actual use, this design has obvious advantages. When the riveting operation is performed, the pressure head 6 will first contact the reference surface, at which time the displacement sensor 5 can provide initial data reference for subsequent operations by sensing the relevant displacement change. Then the riveting head contacts the rivet, and through the accurate monitoring of the displacement sensor 5 on the displacement change in this process, the height of the rivet can be accurately detected. In this way, regardless of the change in the height of the rivet, the device can make corresponding adjustments according to the detected height information, so as to realize the riveting operation of rivets of different heights, greatly improving the adaptability and versatility of the device, and providing a reliable solution for various riveting work scenes.

[0052] Obviously, the above-described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the scope of protection of the present application.

[0053] It should be noted that the terms used herein are only intended to describe specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form unless the context clearly indicates otherwise, and it should be understood that when the terms "comprise" and / or "include" are used in the specification, there is a feature, step, work, device, component and / or combination thereof.

[0054] It should be noted that the terms "first", "second" and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0055] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A rivet riveting device comprising a riveter, a rivet head being provided on the riveter; characterized in that: The lower end of the riveting machine is provided with a rivet fixing block, and a first cavity for vertically placing the rivet is arranged in the rivet fixing block; a rivet limiting block is arranged below the rivet fixing block, and a channel for vertically placing the rivet is arranged in the rivet limiting block, the rivet fixing block and the rivet limiting block are connected by a buffer mechanism, a displacement sensor for sensing the up-down position of the rivet limiting block is arranged on one side of the rivet fixing block, and a pressure head is arranged on the lower end surface of the rivet limiting block, and a second cavity for vertically placing the rivet is arranged in the pressure head.

2. The rivet riveting apparatus according to claim 1, characterized by: The shell of the riveting machine is provided with a vertical surface, and the vertical surface is provided with a mounting hole connected with a moving module.

3. The rivet riveting apparatus according to claim 1, characterized by: The buffer mechanism comprises a plurality of guide assemblies and elastic assemblies, and the guide assemblies and the elastic assemblies are arranged at intervals and distributed in a circumferential array on the rivet limiting block and the rivet fixing block.

4. The rivet riveting apparatus according to claim 3, characterized by: The guide assembly comprises a sliding rod fixed on the rivet fixing block and a sliding sleeve fixed on the rivet limiting block, the lower end of the sliding rod is provided with a sliding block and is inserted into the sliding sleeve, and the upper end of the sliding sleeve is provided with a sealing plate for limiting the upward movement of the sliding block.

5. The rivet riveting apparatus according to claim 4, characterized by: A first groove is arranged on the rivet fixing block for inserting the upper end of the sliding sleeve.

6. The rivet riveting apparatus according to claim 3, characterized by: The elastic assembly comprises a countersunk screw, the countersunk screw passes through the rivet limiting block from bottom to top and is fixed on the rivet fixing block, and the countersunk screw and the rivet limiting block are arranged in sliding mode; a spring is sleeved on the countersunk screw between the rivet fixing block and the rivet limiting block, the upper end of the spring abuts against the rivet fixing block, and the lower end of the spring abuts against the rivet limiting block.

7. The rivet riveting apparatus according to claim 6, characterized by: A second groove is arranged on the rivet fixing block for inserting the upper end of the spring.

8. The rivet riveting device of claim 1, wherein: The pressure head is located in the area enclosed by the buffer mechanism and is detachably mounted on the pressure head rivet limiting block by a screw.

9. The rivet riveting apparatus of claim 8, wherein: The pressure head has a structure of wide upper end and narrow lower end, and a notch is arranged on one side of the lower end of the pressure head, and the lower end of the second cavity is exposed outside through the notch.

10. The rivet riveting device of claim 1, wherein: The rivet fixing block is provided with a sensor mounting table, the sensor mounting table is provided with a sensor head mounting bracket, and the displacement sensor is arranged on the sensor head mounting bracket.

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