Riveting device

Abstract

The utility model relates to a riveting device which comprises a riveting fixing seat and a riveting lifting assembly, the riveting fixing seat is used for placing a piece to be riveted, the riveting lifting assembly is located above the riveting fixing seat, and the riveting lifting assembly comprises a lifting seat, a riveting head and an elastic limiting telescopic assembly. The riveting head and the elastic limiting telescopic assembly are arranged on the side, close to the riveting fixing base, of the lifting base, the riveting head is provided with a riveting end used for acting on a to-be-riveted piece, the elastic limiting telescopic assembly is provided with an abutting end abutting against the to-be-riveted piece, and the abutting end can stretch out and draw back relative to the lifting base so as to ascend and descend between the position lower than the riveting end and the position flush with the riveting end. During riveting, the abutting end of the elastic limiting telescopic assembly can stretch out and draw back relative to the lifting base so as to ascend and descend between the position lower than the riveting end and the position flush with the riveting end, and then the pre-pressing effect on the part to be riveted is achieved. According to the riveting device, the riveting quality can be improved, and deformation or dislocation possibly caused to the part to be riveted in the riveting process is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of riveting and pressing, in particular to a riveting and pressing device. Background Art

[0002] At present, in industrial manufacturing assembly and processing, the riveting and pressing process is usually adopted for the fusion of metal, non-metal materials and plastic parts. It is a process that generates heat through a riveting head to quickly fuse and form the contact between metal, non-metal materials and plastic parts, which can ensure the surface quality and beauty, and has the characteristics of energy saving, high efficiency and high reliability. The riveting and pressing process realizes connection or forming through the plastic deformation of metal parts, and is widely used in many fields such as the manufacture of motor rotors and plate fixing. It is an important mechanical connection method. In the riveting and pressing process of conventional parts, the existing riveting head can realize the reliable connection of two parts. When facing parts with lighter mass or smaller volume such as elastic sheets, due to the thinner thickness of the workpiece, there will be a certain amount of deformation in some parts, and the fusion surfaces of the two parts do not completely fit. When the riveting head contacts the riveting post, the plastic riveting post deforms under the heat generated by the riveting head, thus losing the guiding function for the parts, resulting in misalignment of the parts during riveting. In addition, after the riveting is completed, the plastic riveting post is hot-melt extruded and filled in a specially designed prefabricated groove, and the inside of the prefabricated groove is in a vacuum state. During the reset process of the riveting head, the parts cannot fall off in time, resulting in problems such as the connected parts running with the reset of the riveting head and the parts falling and scratching. Therefore, how to improve the riveting quality and effectively avoid the deformation and misalignment that may be caused to the parts during the riveting process is a technical problem that needs to be solved urgently by those skilled in the art at present. Summary of the Utility Model

[0003] Based on this, it is necessary to provide a riveting and pressing device that can improve the riveting quality and effectively avoid the deformation or misalignment that may be caused to the parts to be riveted during the riveting process.

[0004] A riveting and pressing device includes a riveting and pressing fixed seat and a riveting and pressing lifting assembly. The riveting and pressing fixed seat is used to place the parts to be riveted. The riveting and pressing lifting assembly is located above the riveting and pressing fixed seat. The riveting and pressing lifting assembly includes a lifting seat, a riveting head and an elastic limit telescopic assembly. The riveting head and the elastic limit telescopic assembly are arranged on one side of the lifting seat close to the riveting and pressing fixed seat. The riveting head has a riveting end for acting on the parts to be riveted. The elastic limit telescopic assembly has a top end for abutting against the parts to be riveted. The top end can telescopically move relative to the lifting seat to move up and down between a position lower than the riveting end and a position flush with the riveting end.

[0005] In the riveting device provided in the present application, it includes a riveting fixed seat and a riveting lifting assembly. The riveting fixed seat can play a role in accommodating and is used to place the workpiece to be riveted. The riveting lifting assembly is located above the riveting fixed seat, and the riveting lifting assembly can descend close to the riveting fixed seat to realize the riveting process. The riveting lifting assembly includes a lifting seat, a riveting head, and an elastic limit telescopic assembly. The riveting head is used to rivet the workpiece to be riveted, and the elastic limit telescopic assembly can play a role of preloading. During the riveting process, the elastic limit telescopic assembly can contact the workpiece to be riveted prior to the riveting head, thereby playing a role in protecting the workpiece to be riveted. The lifting seat can drive the riveting head and the elastic limit telescopic assembly to move in a direction close to or away from the riveting fixed seat. The riveting head has a riveting end for acting on the workpiece to be riveted, and the elastic limit telescopic assembly has a top end for abutting against the workpiece to be riveted. Both the riveting end and the top end can directly contact the workpiece to be riveted. During riveting, the top end of the elastic limit telescopic assembly can telescopically move relative to the lifting seat between a position lower than the riveting end and a position flush with the riveting end, thereby realizing the preloading effect on the workpiece to be riveted, improving the riveting quality, and effectively avoiding deformation or misalignment that may be caused to the workpiece to be riveted during the riveting process.

[0006] In one embodiment, the elastic limit telescopic assembly includes an elastic member and a top member. The elastic member is connected between the top member and the lifting seat, and the end of the top member close to the riveting fixed seat is the top end.

[0007] In one embodiment, a sliding hole is formed in the lifting seat, and one end of the top member is slidably disposed in the sliding hole.

[0008] In one embodiment, the elastic member is disposed in the sliding hole. One end of the elastic member abuts against the bottom of the sliding hole, and the other end abuts against the top member.

[0009] In one embodiment, the sliding hole includes a small-diameter section and a large-diameter section. The small-diameter section communicates with the large-diameter section to the opening at the bottom of the lifting seat. The end of the top member opposite to the top end is located in the large-diameter section and is restricted to slide in the large-diameter section, and the elastic member is located in the large-diameter section.

[0010] In one embodiment, the maximum distance from the end of the top member opposite to the top end to the bottom of the sliding hole is greater than the maximum height difference between the top end and the riveting end.

[0011] In one embodiment, the elastic member is a compression spring. When the riveting lifting assembly is away from the riveting fixed seat, the compression spring is in a compressed state.

[0012] In one embodiment, the material of the top member is glass fiber.

[0013] In one embodiment, a plurality of the elastic limiting and telescopic components are provided in the lifting seat.

[0014] In one embodiment, the plurality of elastic limiting and telescopic components are symmetrically distributed about the center in the lifting seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The following further describes the present utility model in conjunction with the drawings and embodiments, wherein:

[0016] Figure 1 is a schematic structural diagram of a riveting and pressing lifting assembly provided by an embodiment of the present application;

[0017] Figure 2 is a schematic structural diagram of a riveting and pressing lifting assembly provided by an embodiment of the present application;

[0018] Figure 3 is a sectional view A-A of a riveting and pressing lifting assembly provided by an embodiment of the present application;

[0019] Figure 4 is a schematic structural diagram of a riveting and pressing lifting assembly provided by an embodiment of the present application;

[0020] Figure 5 is a sectional view B-B of a riveting and pressing lifting assembly provided by an embodiment of the present application;

[0021] Figure 6 is a side view of a riveting and pressing lifting assembly provided by an embodiment of the present application;

[0022] Figure 7 is a schematic structural diagram of a lifting seat provided by an embodiment of the present application;

[0023] Figure 8 is a sectional view C-C of a lifting seat provided by an embodiment of the present application;

[0024] Figure 9 is a schematic structural diagram of an elastic limiting and telescopic component provided by an embodiment of the present application;

[0025] Figure 10 is a sectional view D-D of an elastic limiting and telescopic component provided by an embodiment of the present application.

[0026] Reference numerals: Riveting and pressing lifting assembly 10; Lifting seat 20; Slide hole 21; Hole bottom 210; Small-diameter section 211; Large-diameter section 212; Riveting head 30; Riveting end 31; Elastic limiting and telescopic component 40; Elastic member 41; Abutting member 42; Abutting end 420 DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the following detailed description of the specific embodiments of the present utility model will be given in conjunction with the accompanying drawings. A lot of specific details are set forth in the following description in order to fully understand the present utility model. However, the present utility model can be implemented in many other ways different from those described herein. Those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0028] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present utility model.

[0029] In the present utility model, unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. It can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] In the present utility model, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over", and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath", and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0031] At present, in industrial manufacturing, assembly and processing, the riveting process is usually adopted when fusing metal, non-metal materials and plastic parts. It is a process that generates heat through a riveting head to quickly fuse and form the contact between metal, non-metal materials and plastic parts, which can ensure the surface quality and aesthetics, and has the characteristics of energy saving, high efficiency and high reliability. The riveting process realizes connection or forming through the plastic deformation of metal parts and is widely used in many fields such as the manufacture of motor rotors and plate fixation. It is an important mechanical connection method. The implementation principle of the riveting process is to squeeze the riveting screw and nut into the prefabricated groove under the action of external force to achieve the firm connection of two parts. Specifically, the riveting nut is usually circular and has embossed teeth. Its principle is to press the embossed teeth into the hole of the sheet metal part. Since the hole diameter is smaller than the outer diameter of the embossed teeth, plastic deformation occurs around the hole under the action of pressure, resulting in a pressing effect, thereby achieving the purpose of firm connection. This process is applicable to ordinary low-carbon steel, aluminum alloy plates, copper plates, etc. For stainless steel and high-carbon steel plates, due to their harder materials, special high-strength riveting nut columns are required. In the riveting process of conventional parts, the existing riveting head can achieve the reliable connection of two parts. When facing parts with lighter quality or smaller volume such as shrapnel, due to the thinner thickness of the workpiece, some will have a certain amount of deformation, and the fusion surface of the two parts is not completely fitted. When the riveting head touches the riveting column, the plastic part riveting column deforms under the heat generated by the riveting head, thus losing the guiding effect on the parts and resulting in misalignment of the parts during riveting. In addition, after the riveting is completed, the plastic part riveting column is melted and extruded into the specially designed prefabricated groove. The prefabricated groove is in a vacuum state. During the reset process of the riveting head, the parts cannot fall off in time, resulting in problems such as the connected parts running with the reset of the riveting head and the parts falling and scratching. Therefore, how to improve the riveting quality and effectively avoid the deformation and misalignment that may occur to the parts during the riveting process is a technical problem that needs to be solved urgently by those skilled in the art at present.

[0032] Reference Figures 1 to 5 , to solve the above problems, an embodiment of the present application provides a riveting device, including a riveting fixed seat and a riveting lifting assembly 10. The riveting fixed seat is used to place the parts to be riveted. The riveting lifting assembly 10 is located above the riveting fixed seat. The riveting lifting assembly 10 includes a lifting seat 20, a riveting head 30 and an elastic limit telescopic assembly 40. The riveting head 30 and the elastic limit telescopic assembly 40 are arranged on one side of the lifting seat 20 close to the riveting fixed seat. The riveting head 30 has a riveting end 31 for acting on the parts to be riveted. The elastic limit telescopic assembly 40 has a top end 420 for abutting against the parts to be riveted. The top end 420 can telescopically move relative to the lifting seat 20 to move up and down between a position lower than the riveting end 31 and a position flush with the riveting end 31.

[0033] In this riveting device, the riveting device includes a riveting fixed seat and a riveting lifting assembly 10. The riveting fixed seat can serve as a receptacle and is used to place the workpiece to be riveted. The riveting lifting assembly 10 is located above the riveting fixed seat, and the riveting lifting assembly 10 can descend close to the riveting fixed seat to realize the riveting process. The riveting lifting assembly 10 includes a lifting seat 20, a riveting head 30, and an elastic limit telescopic assembly 40. The riveting head 30 is used to rivet the workpiece to be riveted, and the elastic limit telescopic assembly 40 can play a role in preloading. During the riveting process, the elastic limit telescopic assembly 40 can contact the workpiece to be riveted prior to the riveting head 30, thereby playing a role in protecting the workpiece to be riveted. The lifting seat 20 can drive the riveting head 30 and the elastic limit telescopic assembly 40 to move towards or away from the riveting fixed seat. The riveting head 30 has a riveting end 31 for acting on the workpiece to be riveted, and the elastic limit telescopic assembly 40 has a contact end 420 for abutting against the workpiece to be riveted. Both the riveting end 31 and the contact end 420 can directly contact the workpiece to be riveted. During riveting, the contact end 420 of the elastic limit telescopic assembly 40 can telescopically move relative to the lifting seat 20 to move up and down between a position lower than the riveting end 31 and a position flush with the riveting end 31, thereby realizing the preloading effect on the workpiece to be riveted, improving the riveting quality, and effectively avoiding possible deformation or misalignment of the workpiece to be riveted during the riveting process.

[0034] Reference Figures 6 to 10, the riveting lifting assembly 10 can be arranged in a matching manner with the riveting fixing seat. For example, the riveting lifting assembly 10 is a columnar structure with a circular cross-section, and the riveting fixing seat can also be arranged as a columnar structure with a circular cross-section. At the same time, the size relationship between the two can achieve that during riveting, the elastic limit telescopic assembly 40 on the riveting lifting assembly 10 can abut against the part to be riveted. In some embodiments, the elastic limit telescopic assembly 40 includes an elastic member 41 and an abutting member 42. The elastic member 41 is connected between the abutting member 42 and the lifting seat 20. One end of the abutting member 42 close to the riveting fixing seat is the abutting end 420. Specifically, the elastic member 41 can be arranged as a compression spring, and the abutting member 42 can be arranged as a bar-shaped structure with a smaller size. In some embodiments, the structure of the abutting member 42 is a cylinder, and the diameter of the abutting member 42 is 3 - 5 mm. Since during riveting, the elastic limit telescopic assembly 40 contacts the part to be riveted prior to the riveting head 30, the length of the elastic limit telescopic assembly 40 is greater than the length of the riveting head 30 in the riveting stroke. In some embodiments, the abutting member 42 can be set to 30 mm. In some embodiments, the material of the abutting member 42 can be made of glass fiber. Glass fiber is an excellent inorganic non-metallic material with a wide variety of types. Its advantages are good insulation, high heat resistance, good corrosion resistance, and high mechanical strength. It is manufactured from six ores, namely pyrophyllite, quartz sand, limestone, dolomite, boron calcium stone, and boron magnesium stone, through processes such as high-temperature melting, wire drawing, winding, and weaving. Glass fiber is usually used as a reinforcing material, electrical insulation material, heat insulation and heat preservation material, and circuit board substrate in various fields of the national economy. There are green glass fibers and black glass fibers. In the actual use of the riveting device in this application, green glass fibers are usually used as the abutting member 42. Green glass fiber is a glass fiber composite board, which is synthesized from glass fiber materials and high heat-resistant composite materials, does not contain asbestos components harmful to the human body, and has a backing plate with high mechanical properties and dielectric properties, good heat resistance and wear resistance, small water absorption, stable dimensions, and luster. During the riveting process, the riveting device is usually placed in a high-temperature environment, which requires the abutting member 42 to have good heat resistance. Glass fiber has good heat resistance and poor thermal conductivity. Therefore, using the abutting member 42 supported by glass fiber is beneficial for the good heat resistance of the riveting device during the riveting process to ensure the normal progress of the riveting process. In some embodiments, a sliding hole 21 is formed in the lifting seat 20, and the elastic limit telescopic assembly 40 can be arranged in the sliding hole 21. Specifically, the elastic member 41 is arranged in the sliding hole 21. One end of the elastic member 41 abuts against the bottom 210 of the sliding hole 21, and the other end abuts against the abutting member 42. Correspondingly, one end of the abutting member 42 abuts against the spring, and the end abutting against the spring is slidably arranged in the sliding hole 21.During riveting, the riveting lifting assembly 10 drives the riveting head 30 and the elastic limit telescopic assembly 40 to move together towards the side of the workpiece to be riveted. The abutting member 42 gradually approaches the workpiece to be riveted. When the abutting member 42 contacts the workpiece to be riveted, the workpiece to be riveted will exert an upward acting force on the abutting member 42. At this time, since the other side of the abutting member 42 is connected with an elastic member 41, according to the interaction of forces, the workpiece to be riveted exerts an upward acting force on the abutting member 42, causing the elastic member 41 to receive an upward pressure and the elastic member 41 to be compressed. At this time, the abutting member 42 still abuts against the workpiece to be riveted to play a positioning role, effectively avoiding possible deformation and misalignment of the components during the riveting process. Further, the riveting lifting assembly 10 continues to move towards the side of the workpiece to be riveted until the riveting head 30 contacts the workpiece to be riveted. During this process, the abutting member 42 can slide in the sliding hole 21, and the elastic member 41 can also slide in the sliding hole 21, so that after the abutting member 42 contacts the workpiece to be riveted, the riveting lifting assembly 10 can still move towards the side of the workpiece to be riveted without damaging the workpiece to be riveted.

[0035] Reference Figures 6 to 10, in some embodiments, the sliding hole 21 includes a small-aperture section 211 and a large-aperture section 212. The small-aperture section 211 communicates with the large-aperture section 212 to the opening at the bottom of the lifting seat 20. The large-aperture section 212 can be used to place the elastic member 41, and the small-aperture section 211 can be used to place the abutting member 42. In some embodiments, the small-aperture section 211 and a part of the large-aperture section 212 near the small-aperture section 211 are used to accommodate the abutting member 42, and the remaining part of the large-aperture section 212 is used to place the elastic member 41. Specifically, one end of the abutting member 42 opposite to the abutting end 420 is located in the large-aperture section 212 and is restricted to slide in the large-aperture section 212, which can prevent the abutting member 42 from being bounced back by the reaction force of the elastic member 41. That is, after the abutting member 42 contacts the workpiece to be riveted, the abutting member 42 originally arranged in the large-aperture section 212 still remains in the large-aperture section 212 and will not pop out of the large-aperture section 212 due to the reaction force of the elastic member 41. At this time, a part of the abutting member 42 in the small-aperture section 211 can move into the large-aperture section 212. The elastic member 41 is located in the large-aperture section 212. In some embodiments, a groove is provided on one side of the abutting member 42 close to the elastic member 41, and one end of the elastic member 41 close to the abutting member 42 can be placed in the groove to limit the movement range of the elastic member 41. In some embodiments, to ensure that when the riveting end 31 of the riveting head 30 contacts the workpiece to be riveted, the abutting end 420 of the abutting member 42 still contacts the workpiece to be riveted, and at the same time the abutting end 420 does not damage the workpiece to be riveted, it is necessary to set the maximum distance from the end of the abutting member 42 opposite to the abutting end 420 to the bottom 210 of the sliding hole 21 to be greater than the maximum height difference between the abutting end 420 and the riveting end 31. Specifically, the length of the abutting member 42 can be set to 30 mm, and the length of the elastic limit telescopic assembly 40 is 45 mm. At this time, the elastic member 41 is in a free state, and the maximum height difference between the abutting end 420 and the riveting end 31 is 10 mm. In some embodiments, when the elastic member 41 is a compression spring, when the riveting lifting assembly 10 moves away from the riveting fixed seat, the compression spring is in a compressed state. At this time, the abutting end 420 abuts against the workpiece to be riveted, which can provide positioning and guiding functions for the riveting of the workpiece to be riveted, and avoid the situation that the components of the workpiece to be riveted are easily misaligned when the riveting head 30 contacts the workpiece to be riveted.

[0036] Refer to Figures 1 to 4, when the riveting device finishes riveting the workpiece to be riveted, the riveting end 31 of the riveting head 30 and the abutting end 420 of the abutting member 42 both abut against the workpiece to be riveted. Further, the riveting lifting assembly 10 moves toward the side away from the workpiece to be riveted, and the riveting end 31 of the riveting head 30 is separated from the workpiece to be riveted. In the prior art, during the reset process of the riveting head 30, the components cannot fall off in time, resulting in problems such as the connected components running with the reset of the riveting head 30 and the components falling and scratching. However, due to the elastic limit telescopic assembly 40 provided in the riveting device of the present application, when the riveting head 30 just disengages from the workpiece to be riveted, the elastic limit telescopic assembly 40 still abuts against the workpiece to be riveted, which is beneficial to the timely separation of the riveting head 30 from the workpiece to be riveted and can prevent the situation of the workpiece to be riveted falling or scratching caused by the difficulty in separating between the riveting head 30 and the workpiece to be riveted. In some embodiments, a plurality of elastic limit telescopic assemblies 40 are provided in the lifting seat 20. For example, the elastic limit telescopic assembly 40 can be arranged close to the riveting head 30. Arranging a plurality of elastic limit telescopic assemblies 40 is beneficial to providing pre-pressure and guiding positioning at different positions of the workpiece to be riveted. In some embodiments, the plurality of elastic limit telescopic assemblies 40 are symmetrically distributed about the center in the lifting seat 20, and the plurality of riveting heads 30 are symmetrically distributed about the center in the lifting seat 20. The elastic limit telescopic assemblies 40 and the riveting heads 30 are arranged at intervals, which can make the acting forces generated by the elastic limit telescopic assemblies 40 and the riveting heads 30 on the workpiece to be riveted symmetrical to each other, beneficial to making the workpiece to be riveted receive uniform force and beneficial to ensuring the functionality of the riveting device to improve the riveting quality.

[0037] When the riveting device performs riveting, the riveting lifting assembly 10 drives the riveting head 30 and the elastic limit telescopic assembly 40 to move together towards the side of the workpiece to be riveted. The abutting member 42 gradually approaches the workpiece to be riveted. When the abutting member 42 contacts the workpiece to be riveted, the workpiece to be riveted will give an upward acting force to the abutting member 42. At this time, since an elastic member 41 is connected to the other side of the abutting member 42, according to the interaction of forces, the workpiece to be riveted exerts an upward acting force on the abutting member 42, causing the elastic member 41 to receive an upward pressure, and the elastic member 41 is compressed. At this time, the abutting member 42 still abuts against the workpiece to be riveted to play a positioning role, effectively avoiding possible deformation and dislocation of the components during the riveting process. Further, the riveting lifting assembly 10 continues to move towards the side of the workpiece to be riveted until the riveting head 30 contacts the workpiece to be riveted. During this process, the abutting member 42 can slide in the sliding hole 21, and the elastic member 41 can also slide in the sliding hole 21, so that after the abutting member 42 contacts the workpiece to be riveted, the riveting lifting assembly 10 can still move towards the side of the workpiece to be riveted without damaging the workpiece to be riveted. When the riveting device finishes riveting the workpiece to be riveted, the riveting end 31 of the riveting head 30 and the abutting end 420 of the abutting member 42 both abut against the riveted part. Further, the riveting lifting assembly 10 moves towards the side away from the riveted part, and the riveting end 31 of the riveting head 30 is separated from the riveted part. Since the elastic limit telescopic assembly 40 is provided, when the riveting head 30 just disengages from the riveted part, the elastic limit telescopic assembly 40 still abuts against the riveted part, which is beneficial to the timely detachment of the riveting head 30 from the riveted part and can prevent the situation of the riveted part falling or being scratched due to the difficulty in detaching between the riveting head 30 and the riveted part.

[0038] The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0039] The above embodiments only represent several implementation manners of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. A riveting and pressing device, characterized in that It includes a riveting fixing seat and a riveting lifting assembly. The riveting fixing seat is used to place the workpiece to be riveted. The riveting lifting assembly is located above the riveting fixing seat. The riveting lifting assembly includes a lifting seat, a riveting head and an elastic limit telescopic assembly. The riveting head and the elastic limit telescopic assembly are arranged on the side of the lifting seat close to the riveting fixing seat. The riveting head has a riveting end for acting on the workpiece to be riveted. The elastic limit telescopic assembly has a top end for abutting against the workpiece to be riveted. The top end can telescopically move relative to the lifting seat to move up and down between a position lower than the riveting end and a position flush with the riveting end.

2. The riveting and pressing device according to claim 1, wherein The elastic limit telescopic assembly includes an elastic member and a top member. The elastic member is connected between the top member and the lifting seat. One end of the top member close to the riveting fixing seat is the top end.

3. The riveting and pressing device according to claim 2, wherein, A sliding hole is formed in the lifting seat. One end of the top member is slidably arranged in the sliding hole.

4. The riveting device according to claim 3, characterized in that, The elastic member is arranged in the sliding hole. One end of the elastic member abuts against the bottom of the sliding hole, and the other end abuts against the top member.

5. The riveting and pressing device according to claim 4, characterized in that, The sliding hole includes a small-diameter section and a large-diameter section. The small-diameter section communicates with the opening at the bottom of the large-diameter section to the lifting seat. The end of the top member opposite to the top end is located in the large-diameter section and is restricted to slide in the large-diameter section. The elastic member is located in the large-diameter section.

6. The riveting device according to claim 4, wherein The maximum distance from the end of the top member opposite to the top end to the bottom of the sliding hole is greater than the maximum height difference between the top end and the riveting end.

7. The riveting device according to claim 2, characterized in that, The elastic member is a compression spring. When the riveting lifting assembly is away from the riveting fixing seat, the compression spring is in a compressed state.

8. The riveting and pressing device according to claim 2, characterized in that, The material of the top member is glass fiber.

9. The riveting and pressing device according to claim 1, characterized in that, A plurality of the elastic limit telescopic assemblies are arranged in the lifting seat.

10. The riveting device according to claim 9, characterized in that, The plurality of elastic limit telescopic assemblies are symmetrically distributed about the center in the lifting seat.

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