A rivet, its processing equipment and its processing method

Abstract

The present invention discloses a rivet, its processing equipment and its processing method, belonging to the technical field of rivet processing, including a base and a forming device arranged at the upper end of the base; the forming device includes a power source, a feeding tray, an inclined base, a static structure plate, a guiding frame and a moving structure plate, and the downward pressing and limiting mechanism includes a supporting sliding rod, a top plate, a handwheel, an adjusting screw rod, an adjusting plate and a linkage type limiting component. By the above method, the rivet rod sequentially passes through a primary thread rolling groove, a secondary thread rolling groove and a tertiary thread rolling groove, and a triangular groove is gradually formed and deepened under the cooperation of the three. During the formation of the triangular groove, the anti-slip teeth can tightly bite the rivet rod, and the stopper, the side limiting block and the capsule cooperate to achieve the limiting effect on the rivet body. The non-Newtonian fluid in the capsule can adapt to different types of rivet caps.

Description

Technical Field

[0001] The present invention relates to the technical field of rivet processing, and particularly relates to a rivet, its processing equipment and its processing method. Background Art

[0002] Rivet processing equipment is a kind of mechanical equipment used for manufacturing and processing rivets. It is usually used in the field of metal processing, especially in industries such as aviation, automobile, and shipbuilding. It processes raw materials of rivets (such as steel, aluminum, etc.) into required shapes and specifications through various mechanical processing methods (such as stamping, riveting, cooling, etc.).

[0003] In the prior art, the rivet is sent to the threading area, that is, between the moving plate and the static plate, through a feeding tray. At this time, the moving plate will perform reciprocating linear motion driven by a driving device. Since the threading surface of the threading plate has the same shape as the required thread shape of the rivet, when the rivet enters between the moving plate and the static plate, the moving plate will move, causing the outer metal of the rivet to undergo plastic deformation under the action of pressure and friction, so as to thread the corresponding thread shape on the rod part of the rivet.

[0004] The deficiencies of the above prior art solutions are as follows: Due to the long-term vibration of the machine, the connection between the device and the oil supply system pipeline will become loose, resulting in insufficient lubricating oil supply. When the lubricating oil supply is insufficient, the dry friction between the rivet and the threading plate will increase. This unstable frictional force will cause the rivet to be prone to vertical displacement during the threading process, and further cause the threading tool to receive uneven loads, resulting in uneven tool wear. In the long run, it will accelerate the damage of the tool, increase production costs, and affect the processing accuracy. In addition, the added downward pressing limit mechanism cannot adapt to the heads of rivets with different shapes when limiting the rivet. This will cause the operator to spend extra time adjusting the device to adapt to the shape of the rivet head when processing rivets with different shapes, which will increase the production preparation time and reduce the production efficiency. Based on this, the present invention designs a rivet, its processing equipment and its processing method to solve the above problems. Summary of the Invention

[0005] In view of the above-mentioned drawbacks of the prior art, the present invention provides a rivet, its processing equipment and its processing method.

[0006] To achieve the above purposes, the present invention is realized through the following technical solutions:

[0007] A rivet processing equipment, including a base (1) and a forming device (2) arranged at the upper end of the base (1);

[0008] The forming device (2) includes a power source (21), a feeding tray (22), an inclined base (23), a static structure plate (24), a guiding frame (25) and a moving structure plate (26). The power source (21), the feeding tray (22) and the inclined base (23) are all fixedly installed on the base table (1). The static structure plate (24) is fixedly installed on one side of the upper end of the inclined base (23), the guiding frame (25) is fixedly installed on the other side of the upper end of the inclined base (23), and the moving structure plate (26) is connected to the guiding frame (25) in a sliding manner along the length direction of the guiding frame (25) through a limiting structure; the static structure plate (24) and the moving structure plate (26) are used to cooperate to form the rivet body (5);

[0009] The power source (21) is used to drive the moving structure plate (26) to reciprocate along the length direction of the guiding frame (25), and the feeding tray (22) is used to transfer the rivet body (5) between the static structure plate (24) and the moving structure plate (26);

[0010] On the working surface of the static structure plate (24), a first processing area (241) and a second processing area (242) are symmetrically arranged up and down, and the directions of the first processing area (241) and the second processing area (242) are opposite;

[0011] A downward pressing and limiting mechanism (3) is arranged on the inclined base (23), and the downward pressing and limiting mechanism (3) is used to perform up and down limiting on the rivet body (5) during the forming process of the triangular groove (53).

[0012] Furthermore, a plurality of first-level grooving teeth (243), second-level grooving teeth (244) and third-level grooving teeth (245) are sequentially arranged at equal intervals along the length direction of the static structure plate (24) in the first processing area (241). The number of the second-level grooving teeth (244) is not less than that of the first-level grooving teeth (243), and the number of the third-level grooving teeth (245) is not less than that of the second-level grooving teeth (244). The sizes of the first-level grooving teeth (243), the second-level grooving teeth (244) and the third-level grooving teeth (245) gradually increase from the feeding direction of the rivet body (5) to the discharging direction of the rivet body (5), and the three cooperate to press out grooves gradually deepening on the rivet rod (52).

[0013] Furthermore, the first-level grooving teeth (243), the second-level grooving teeth (244) and the third-level grooving teeth (245) are all processing teeth, and three anti-slip teeth (246) parallel to the processing teeth are integrally connected between all the connected processing teeth on the working surface of the static structure plate (24).

[0014] Furthermore, the downward pressing limit mechanism (3) includes a support slide rod (31), a top plate (32), a handwheel (33), an adjustment screw rod (34), an adjustment plate (35) and a linkage type limit component. The support slide rod (31) is fixedly installed on the top of the inclined base (23) and is arranged perpendicular to the top surface of the inclined base (23). The top of the support slide rod (31) is fixedly installed with the top plate (32). The two sides of the adjustment plate (35) are in limit sliding connection with the support slide rod (31) through linear bearings. The lower end of the adjustment screw rod (34) is rotationally connected to the adjustment plate (35) through a bearing. The upper end of the adjustment screw rod (34) is in threaded connection with the top plate (32) through a threaded sleeve, and the upper end of the adjustment screw rod (34) passes through the top plate (32) and is fixedly connected to the handwheel (33). One end of the adjustment plate (35) close to the inclined base (23) is provided with a receiving cavity, and a linkage type limit component linked with the movement of the moving structure plate (26) is arranged in the receiving cavity.

[0015] Furthermore, the linkage type limit component includes a rotating rod (36), a transmission gear (37), a transmission rack (38) and a transfer belt (39). The two rotating rods (36) are rotationally installed on the left and right sides of the receiving groove through bearings. The transfer belt (39) is wound around the outer sides of the rotating rods (36). The two rotating rods (36) are in transmission connection through the transfer belt (39). A transmission gear (37) is fixedly installed on the outer ring surface of the left rotating rod (36). A transmission rack (38) meshed with the transmission gear (37) is fixedly installed on the moving structure plate (26).

[0016] Furthermore, an adaptive mechanism (4) for adapting to rivet caps (51) of different specifications is arranged inside the transfer belt (39). The adaptive mechanism (4) includes a support plate (41), a micro push rod (42), a driving pressing block (43), a driven side slider (44), a limit groove (45), a spring (46) and an enclosing limit component. The support plate (41) is fixedly installed on the inner bottom of the transfer belt (39) and close to the left rotating rod (36). The vertical plate of the support plate (41) is fixedly installed with the micro push rod (42). The output end of the micro push rod (42) is fixedly installed with the driving pressing block (43). Two limit grooves (45) are formed on the support plate (41), and the two limit grooves (45) are symmetrically distributed on both sides of the driving pressing block (43). The driven side slider (44) is in limit sliding connection in the limit groove (45). A spring (46) is also arranged in the limit groove (45). The two ends of the spring (46) are respectively abutted against the driven side slider (44) and the side wall of the limit groove (45).

[0017] A matching sliding connection inclined block structure is arranged between the driving pressing block (43) and the driven side slider (44). When the driving pressing block (43) moves downward, it pushes the two driven side sliders (44) to move relatively.

[0018] The lower ends of the driving pressing block (43) and the driven-side slider (44) are provided with an enclosing limiting component.

[0019] Furthermore, the enclosing limiting component includes a stop block (47), a side limiting block (48), and a bladder (49). A side limiting block (48) is fixedly installed on one side of the lower end of the driven-side slider (44) close to the driving pressing block (43), and a stop block (47) is fixedly installed at the lower end of the driving pressing block (43); the stop block (47) and the side limiting block (48) cooperate to form a U-shaped material receiving area; a bladder (49) is also fixedly installed at the lower end of the driving pressing block (43), and the inside of the bladder (49) is a non-Newtonian fluid.

[0020] Furthermore, the main body of the static structure plate (24) adopts a regular rectangular structure, and the part of the working surface of the static structure plate (24) that is not the first processing area (241) and the second processing area (242) is set as a smooth surface.

[0021] To better achieve the purpose of the present invention, the present invention also provides a processing method for rivets, including the following steps:

[0022] Main body forming: At room temperature, pressure is applied to the metal wire by the die of a cold heading machine to cause plastic deformation of the wire and form the basic shape of the rivet main body (5);

[0023] Groove processing: The rivet rod (52) of the rivet main body (5) is processed for grooves by the rivet processing equipment. Specifically, the blanks are transferred one by one in the same posture to between the static structure plate (24) and the moving structure plate (26) through the feeding tray (22), and the power source (21) is started to drive the moving structure plate (26) to reciprocate along the length direction of the guiding frame (25), and the rivet main body (5) will roll between the static structure plate (24) and the moving structure plate (26) driven by the moving structure plate (26); the rivet rod (52) sequentially passes through the first-stage grooving tooth (243), the second-stage grooving tooth (244), and the third-stage grooving tooth (245) during the rolling process, and the triangular groove (53) is gradually formed and deepened under the cooperation of the three;

[0024] Surface treatment: Pickling is used to remove the pollutants on the surface of the rivet main body (5), and after pickling is completed, the rivet main body (5) is rinsed with clean water to remove the residual acid solution. Secondly, a silver plating layer is evenly deposited on the surface of the rivet main body (5) by electroplating.

[0025] The present invention also provides a rivet, including a rivet head (51), the bottom of the rivet head (51) is fixedly connected with a rivet rod (52), a triangular groove (53) is formed on the outer circumferential surface of the rivet rod (52), and three groups of the triangular grooves (53) are evenly arranged at equal intervals along the circumferential direction of the rivet rod (52).

[0026] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. During the rolling process of the rivet body (5), the rivet rod (52) successively passes through the first thread rolling groove (243), the second thread rolling groove (244) and the third thread rolling groove (245), and the triangular groove (53) is gradually formed under the cooperation of the three. During the formation of the triangular groove (53), the anti-slip teeth (246) can tightly engage with the rivet rod (52), and at the same time, the downward pressure limiting mechanism (3) can limit the rivet body (5), avoiding the up and down displacement of the rivet body (5) during the thread rolling process, thereby effectively reducing the possibility of the rivet rod (52) slipping and misaligning between the static structure plate (24) and the moving structure plate (26), reducing the number of repairs and replacements of the mold, lowering the production cost, and improving the production accuracy.

[0027] 2. In the present invention, after the rivet body (5) enters between the static structure plate (24) and the moving structure plate (26), the bottom of the transfer belt (39) fits with the top of the rivet body (5). During the movement of the moving structure plate (26), the transmission rack (38) will be driven to move synchronously. The transmission rack (38) drives the rotating rod (36) to rotate through the transmission gear (37), and then the transfer belt (39) moves synchronously, reducing the relative movement between the top of the rivet body (5) and the transfer belt (39) during the rolling process of the rivet body (5), avoiding damage to the transfer belt (39) caused by friction between the rivet body (5) and the transfer belt (39). At the same time, the transfer belt (39) abuts against the rivet cap (51) to realize the up and down limit of the rivet body (5), reducing the possibility of the up and down displacement of the rivet body (5) during the thread rolling process, thereby reducing the wear of the rivet body (5) and the thread rolling mold, reducing the number of repairs and replacements of the thread rolling mold, and effectively reducing the production cost.

[0028] 3. After the rivet body (5) is transferred to the feeding ends of the static structure plate (24) and the moving structure plate (26), the rivet body (5) rolls downward along the inclined surface of the static structure plate (24) and is blocked by the stop block (47) in the U-shaped material receiving area at the lower end of the transfer belt (39). Subsequently, the micro-push rod (42) is activated to drive the driving pressing block (43) to move downward. The driving pressing block (43) drives the driven side sliders (44) on both sides to move towards each other through the inclined block structure until the side limit blocks (48) on both sides abut against the rivet cap (51). At this time, the bladder (49) also surrounds the top of the rivet cap (51). The cooperation of the stop block (47), the side limit blocks (48), and the bladder (49) realizes the limiting effect on the rivet body (5). The non-Newtonian fluid in the bladder (49) can adapt to different types of rivet caps (51), thus eliminating the need for frequent replacement or adjustment of equipment, simplifying the operation process, and further improving the efficiency of thread rolling processing of the rivet body (5), reducing the operation difficulty and the defective rate. At the same time, the vertical displacement distance of the driving pressing block (43) is limited by the side limit block (48) being blocked by the rivet cap (51), ensuring that the rivet cap (51) can be wrapped by the bladder (49) and preventing excessive downward pressure of the non-Newtonian fluid in the bladder (49). BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention, and those of ordinary skill in the art can obtain other drawings based on these drawings without creative efforts.

[0030] Figure 1 Structural schematic diagram of a rivet of the present invention Figure 1 ;

[0031] Figure 2 Structural schematic diagram of a rivet of the present invention Figure 2 ;

[0032] Figure 3 Structural schematic diagram of a rivet of the present invention Figure 3 ;

[0033] Figure 4 Structural schematic diagram of the static structure plate of the present invention Figure 1 ;

[0034] Figure 5 Structural schematic diagram of the static structure plate of the present invention Figure 2 ;

[0035] Figure 6 Structural schematic diagram of the static structure plate of the present invention Figure 3 ;

[0036] Figure 7 Three-dimensional view of a rivet processing device of the present invention Figure 1 ;

[0037] Figure 8 Three-dimensional view of a rivet processing device of the present invention Figure 2 ;

[0038] Figure 9 Three-dimensional view of a rivet processing device of the present invention Figure 3 ;

[0039] Figure 10 Three-dimensional view of a downward pressure limiting mechanism of a rivet of the present invention;

[0040] Figure 11 is Figure 9 The enlarged view of the position A in

[0041] Figure 12 Three-dimensional view of the adaptive mechanism of the present invention Figure 1 ;

[0042] Figure 13 Three-dimensional view of the adaptive mechanism of the present invention Figure 2 ;

[0043] Figure 14 Three-dimensional view of the adaptive mechanism of the present invention Figure 3 。

[0044] The reference numerals in the figure respectively represent:

[0045] 1, base; 2, forming device; 21, power source; 22, feeding tray; 23, inclined base; 24, static structure plate; 25, guiding frame; 26, moving structure plate; 241, first processing area; 242, second processing area; 243, first-stage thread rolling groove; 244, second-stage thread rolling groove; 245, third-stage thread rolling groove; 246, anti-slip teeth; 3, downward pressure limiting mechanism; 31, supporting sliding rod; 32, top plate; 33, hand wheel; 34, adjusting screw; 35, adjusting plate; 36, rotating rod; 37, transmission gear; 38, transmission rack; 39, transfer belt; 4, adaptive mechanism; 41, support plate; 42, micro push rod; 43, driving pressing block; 44, driven side slider; 45, limiting groove; 46, spring; 47, stop block; 48, side limiting block; 49, bladder; 5, rivet body; 51, rivet cap; 52, rivet rod; 53, triangular groove. Detailed implementation manners

[0046] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0047] In the following description, the "left", "right", "front", "rear", "upper", and "lower" mentioned are oriented in the perspective direction of the front view.

[0048] Embodiment 1: In some embodiments, please refer to the Figures 1 - 14 of the accompanying drawings of the specification. A processing device for rivets includes a base (1) and a forming device (2) provided at the upper end of the base (1);

[0049] The forming device (2) includes a power source (21), a feeding tray (22), an inclined base (23), a static structure plate (24), a guiding frame (25), and a moving structure plate (26). The power source (21), the feeding tray (22), and the inclined base (23) are all fixedly installed on the base (1). The static structure plate (24) is fixedly installed on one side of the upper end of the inclined base (23), the guiding frame (25) is fixedly installed on the other side of the upper end of the inclined base (23), and the moving structure plate (26) is connected to the guiding frame (25) slidably along the length direction of the guiding frame (25) through a limiting structure (such as a limiting groove and a limiting block limiting structure); the static structure plate (24) and the moving structure plate (26) are used to cooperate to form the rivet body (5);

[0050] The power source (21) is used to drive the moving structure plate (26) to reciprocate along the length direction of the guiding frame (25), and the feeding tray (22) is used to transfer the rivet body (5) between the static structure plate (24) and the moving structure plate (26). Both the power source (21) and the feeding tray (22) adopt mature technologies in the art and will not be elaborated too much herein;

[0051] The surfaces of the static structure plate (24) and the moving structure plate (26) facing each other are working surfaces;

[0052] The working surface of the static structure plate (24) is symmetrically provided with a first processing area (241) and a second processing area (242) up and down. The directions of the first processing area (241) and the second processing area (242) are opposite, so that when wear, heat generation, etc. occur in the first processing area (241) or the second processing area (242), they can be replaced for use, reducing the standby maintenance time.

[0053] The main body of the static structure plate (24) adopts a regular rectangular structure, and the part of the working surface of the static structure plate (24) that is not the first processing area (241) and the second processing area (242) is provided as a smooth surface;

[0054] In the first processing area (241), a first-stage thread rolling groove (243), a second-stage thread rolling groove (244), and a third-stage thread rolling groove (245) are sequentially arranged at equal intervals along the length direction of the static structure plate (24). There are three first-stage thread rolling grooves (243) and three second-stage thread rolling grooves (244), and thirteen third-stage thread rolling grooves (245).

[0055] Specifically, the sizes of the first-stage thread rolling groove (243), the second-stage thread rolling groove (244), and the third-stage thread rolling groove (245) gradually increase from the feeding direction of the rivet body (5) to the discharging direction of the rivet body (5). The three cooperate to gradually deepen the groove pressed out on the rivet rod (52), achieving an accurate forming effect for the triangular groove (53).

[0056] Furthermore, the first-stage thread rolling groove (243), the second-stage thread rolling groove (244), and the third-stage thread rolling groove (245) are all processing teeth. Three anti-slip teeth (246) parallel to the processing teeth are integrally connected between all adjacent processing teeth on the working surface of the static structure plate (24). During the sliding process of the moving structure plate (26), the static structure plate (24) can better bite the rivet body (5) during rolling through the anti-slip teeth (246), achieving an anti-slip effect.

[0057] A downward pressing and limiting mechanism (3) is arranged on the inclined base (23). The downward pressing and limiting mechanism (3) is used to perform upper and lower limiting on the rivet body (5) during the forming process of the triangular groove (53), preventing the rivet body (5) from having an up and down displacement between the static structure plate (24) and the moving structure plate (26).

[0058] In the present invention, the blank of the rivet body (5) after cold heading forming is loaded into the feeding tray (22). The feeding tray (22) transfers the blanks to between the static structure plate (24) and the moving structure plate (26) one by one in the same posture. The power source (21) is started to drive the moving structure plate (26) to reciprocate along the length direction of the guiding frame (25), and the rivet body (5) will roll between the static structure plate (24) and the moving structure plate (26) driven by the moving structure plate (26).

[0059] During the rolling process of the rivet body (5), the rivet rod (52) sequentially passes through the first-stage thread rolling groove (243), the second-stage thread rolling groove (244), and the third-stage thread rolling groove (245), and the triangular groove (53) is gradually formed and deepened under the cooperation of the three. During the formation of the triangular groove (53), the anti-slip teeth (246) can tightly bite with the rivet rod (52), and at the same time, the downward pressure limiting mechanism (3) can limit the rivet body (5) to prevent the rivet body (5) from moving up and down during the thread rolling process, thereby effectively reducing the possibility of the rivet rod (52) slipping and misaligning between the static structure plate (24) and the moving structure plate (26), reducing the number of mold repairs and replacements, reducing production costs, and improving production accuracy.

[0060] In some embodiments, as Figure 10 shown, the downward pressure limiting mechanism (3) includes a support sliding rod (31), a top plate (32), a handwheel (33), an adjusting screw rod (34), an adjusting plate (35), and a linkage type limiting component. The support sliding rod (31) is fixedly installed on the top of the inclined base (23) and is perpendicular to the top surface of the inclined base (23). The top of the support sliding rod (31) is fixedly installed with a top plate (32). The two sides of the adjusting plate (35) are limited and slidably connected to the support sliding rod (31) through linear bearings. The lower end of the adjusting screw rod (34) is rotatably connected to the adjusting plate (35) through a bearing. The upper end of the adjusting screw rod (34) is threadedly connected to the top plate (32) through a threaded sleeve, and the upper end of the adjusting screw rod (34) passes through the top plate (32) and is fixedly connected to the handwheel (33). One end of the adjusting plate (35) close to the inclined base (23) is provided with a receiving cavity, and a linkage type limiting component linked to the movement of the moving structure plate (26) is arranged in the receiving cavity;

[0061] In the present invention, when the rivet body (5) needs to be thread rolled, by rotating the handwheel, the adjusting screw rod (34) can be driven to rotate, so that the adjusting plate (35) slides along the support sliding rod (31) under the limiting action of the support sliding rod (31) to adjust the distance between the adjusting plate (35) and the inclined base (23), so that the linkage type limiting component can adapt to rivet bodies (5) of various different specifications.

[0062] In some embodiments, as Figure 11 shown, the linkage type limiting component includes a rotating rod (36), a transmission gear (37), a transmission rack (38), and a transfer belt (39). The two rotating rods (36) are rotatably installed on the left and right sides of the receiving groove through bearings. The transfer belt (39) is wound around the outer sides of the rotating rods (36), and the two rotating rods (36) are drivingly connected through the transfer belt (39). A transmission gear (37) is fixedly installed on the outer ring surface of the left rotating rod (36), and a transmission rack (38) meshingly connected to the transmission gear (37) is fixedly installed on the moving structure plate (26);

[0063] In the present invention, after the rivet body (5) enters between the static structure plate (24) and the moving structure plate (26), the bottom of the transfer belt (39) fits against the top of the rivet body (5). During the movement of the moving structure plate (26), the driving rack (38) will be driven to move synchronously. The driving rack (38) drives the rotating rod (36) to rotate through the driving gear (37), thereby causing the transfer belt (39) to move synchronously, reducing the relative movement between the top of the rivet body (5) and the transfer belt (39) during the rolling process of the rivet body (5), avoiding damage to the transfer belt (39) caused by friction between the rivet body (5) and the transfer belt (39). At the same time, the transfer belt (39) abuts against the rivet cap (51) to realize the up and down limit of the rivet body (5), reducing the possibility of the up and down displacement of the rivet body (5) during the thread rolling process, thereby reducing the wear of the rivet body (5) and the thread rolling tool, reducing the maintenance and replacement times of the thread rolling die, and effectively reducing the production cost.

[0064] In some embodiments, as Figures 12 - 14 shown, an adaptive mechanism (4) for adapting to different specifications of rivet caps (51) is provided inside the transfer belt (39). The adaptive mechanism (4) includes a support plate (41), a micro push rod (42), a driving pressing block (43), a driven side slider (44), a limiting groove (45), a spring (46), a stop block (47), a side limiting block (48), and a bladder (49). The support plate (41) is fixedly installed at the inner bottom of the transfer belt (39) and near the rotating rod (36) on the left side. The support plate (41) is composed of a vertical plate and a horizontal plate. The micro push rod (42) is fixedly installed on the vertical plate of the support plate (41), and the output end of the micro push rod (42) is fixedly installed with the driving pressing block (43);

[0065] Two limiting grooves (45) are provided on the support plate (41), and the two limiting grooves (45) are symmetrically distributed on both sides of the driving pressing block (43); a driven side slider (44) is slidably connected in the limiting groove (45) in a limited manner, and a spring (46) is further provided in the limiting groove (45). The two ends of the spring (46) are respectively abutted against the driven side slider (44) and the side wall of the limiting groove (45);

[0066] A cooperating sliding connection inclined block structure is provided between the driving pressing block (43) and the driven side slider (44). When the driving pressing block (43) moves downward, it pushes the two driven side sliders (44) to move relatively;

[0067] A side limiting block (48) is fixedly installed on the side of the lower end of the driven side slider (44) close to the driving pressing block (43), and a stop block (47) is fixedly installed at the lower end of the driving pressing block (43); the stop block (47) and the side limiting block (48) cooperate to form a U-shaped material receiving area; a bladder (49) is further fixedly installed at the lower end of the driving pressing block (43), and the inside of the bladder (49) is a non-Newtonian fluid;

[0068] In the present invention, since the inclined base (23) is in an inclined state, the static structure plate (24) and the moving structure plate (26) are also in an inclined state. After the rivet body (5) is transferred to the feeding ends of the static structure plate (24) and the moving structure plate (26), the rivet body (5) rolls downward along the inclined surface of the static structure plate (24) and is blocked by the stopper (47) in the U-shaped material receiving area at the lower end of the transfer belt (39). Subsequently, the micro-pusher (42) is activated to drive the driving pressing block (43) to move downward. The driving pressing block (43) drives the driven side sliders (44) on both sides to move towards each other through the inclined block structure until the side limit blocks (48) on both sides abut against the rivet cap (51). At this time, the bladder (49) also surrounds the top of the rivet cap (51). The cooperation of the stopper (47), the side limit blocks (48), and the bladder (49) realizes the limiting effect on the rivet body (5). The non-Newtonian fluid in the bladder (49) can adapt to different types of rivet caps (51), so there is no need to frequently replace or adjust the equipment, which simplifies the operation process. Furthermore, it can improve the efficiency of thread rolling processing of the rivet body (5), reduce the operation difficulty and the defective rate. At the same time, the vertical displacement distance of the driving pressing block (43) is limited by the side limit block (48) being blocked by the rivet cap (51), ensuring that the rivet cap (51) can be wrapped by the bladder (49) and preventing the non-Newtonian fluid in the bladder (49) from being pressed down too much.

[0069] Embodiment 2: In some embodiments, as Figures 1 - 14 shown, as a preferred embodiment of the present invention, a processing method for a rivet includes the following steps:

[0070] Raw material preparation: Select a suitable metal wire according to the use, strength requirements, and working environment of the rivet body (5), and clean the surface of the material;

[0071] Main body forming: Apply pressure to the metal wire by using the die of a cold heading machine at normal temperature to cause plastic deformation of the wire and form the basic shape of the rivet body (5);

[0072] Groove processing: The feeding tray (22) transfers the blanks to between the static structure plate (24) and the moving structure plate (26) one by one in the same posture. The power source (21) is activated to drive the moving structure plate (26) to reciprocate along the length direction of the guiding frame (25), and the rivet body (5) will roll between the static structure plate (24) and the moving structure plate (26) driven by the moving structure plate (26); the rivet rod (52) sequentially passes through the first-stage thread rolling groove (243), the second-stage thread rolling groove (244), and the third-stage thread rolling groove (245) during the rolling process, and the triangular groove (53) is gradually formed and deepened under the cooperation of the three;

[0073] Surface treatment: Pickling is used to remove the contaminants on the surface of the rivet body (5), and after pickling is completed, the rivet body (5) is rinsed with clean water to remove the residual acid solution. Secondly, a silver-plated layer is evenly deposited on the surface of the rivet body (5) by electroplating;

[0074] Quality inspection: The appearance, dimensional accuracy, and performance of the rivet body (5) are tested.

[0075] By completing the forming operation of the rivet body (5) through the above steps, the processing efficiency of the rivet body (5) can be effectively improved, the production cost can be reduced, and the processing accuracy and the yield rate can be increased.

[0076] Example 3: In some embodiments, as Figures 1 - 3 shown, as a preferred embodiment of the present invention, a rivet body (5) includes a rivet head (51), the bottom of the rivet head (51) is fixedly connected to a rivet shank (52), and a triangular groove (53) is formed on the outer circumferential surface of the rivet shank (52), and three groups of the triangular grooves (53) are evenly arranged at equal intervals along the circumferential direction of the rivet shank (52).

[0077] When using the rivet body (5) provided by the present invention, when the rivet body (5) is embedded in the installation hole of the workpiece, the triangular groove (53) will produce better deformation, and some metal objects will also enter the groove at the deformed part of the workpiece, making the riveting effect better.

[0078] The circuits and controls involved in the present invention are all prior arts and will not be elaborated herein.

[0079] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements will not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A rivet processing device, comprising a base (1) and a forming device (2) arranged on the upper end of the base (1), characterized in that: The forming device (2) comprises a power source (21), a loading tray (22), an inclined base (23), a static structure plate (24), a guide frame (25) and a dynamic structure plate (26); the power source (21), the loading tray (22) and the inclined base (23) are all fixedly mounted on a base (1); the static structure plate (24) is fixedly mounted on one side of the upper end of the inclined base (23); the guide frame (25) is fixedly mounted on the other side of the upper end of the inclined base (23); and the dynamic structure plate (26) is slidably connected to the guide frame (25) along the length direction of the guide frame (25) via a limiting structure; the static structure plate (24) and the dynamic structure plate (26) are used to cooperate with each other to form the rivet body (5); The power source (21) is used to drive the dynamic structure plate (26) to reciprocate along the length direction of the guide frame (25), and the loading plate (22) is used to transfer the rivet body (5) to between the static structure plate (24) and the dynamic structure plate (26); A first processing area (241) and a second processing area (242) are symmetrically arranged on the working surface of the static structure plate (24), and the first processing area (241) and the second processing area (242) are in opposite directions; The inclined base (23) is provided with a downward pressure limiting mechanism (3), and the downward pressure limiting mechanism (3) is used to limit the upper and lower positions of the rivet body (5) during the forming process of the triangular groove (53); An adaptive mechanism (4) for adapting to rivet caps (51) of different specifications is arranged inside the movable end of the downward pressure limiting mechanism (3). The adaptive mechanism (4) comprises a support plate (41), a micro push rod (42), a driving pressure block (43), a driven side slider (44), a limiting groove (45), a spring (46) and a surrounding limiting assembly. The support plate (41) is mounted on the movable end of the downward pressure limiting mechanism (3). A micro push rod (46) is fixedly mounted on the vertical plate of the support plate (41). 42), a driving pressure block (43) is fixedly installed at the output end of the micro push rod (42); two limiting grooves (45) are provided on the support plate (41), and the two limiting grooves (45) are symmetrically distributed on both sides of the driving pressure block (43); a driven side slider (44) is limitedly slidably connected in the limiting groove (45), and a spring (46) is also provided in the limiting groove (45), and two ends of the spring (46) are respectively abutted against the driven side slider (44) and the side wall of the limiting groove (45); A matching sliding connection inclined block structure is provided between the driving pressing block (43) and the driven side sliding block (44); when the driving pressing block (43) moves downward, the two driven side sliding blocks (44) are pushed to move relative to each other.

2. The rivet processing equipment according to claim 1, characterized in that: A plurality of first-level tooth rolling grooves (243), second-level tooth rolling grooves (244) and third-level tooth rolling grooves (245) are arranged in the first processing area (241) at equal intervals in sequence along the length direction of the static structure plate (24); the number of the second-level tooth rolling grooves (244) is not less than the number of the first-level tooth rolling grooves (243); the number of the third-level tooth rolling grooves (245) is not less than the number of the second-level tooth rolling grooves (244); the sizes of the first-level tooth rolling grooves (243), the second-level tooth rolling grooves (244) and the third-level tooth rolling grooves (245) gradually increase from the feeding direction of the rivet body (5) to the unloading direction of the rivet body (5); the three cooperate to form a gradually deepening extrusion groove on the rivet rod (52).

3. The rivet processing equipment according to claim 2, characterized in that: The first-level tooth rolling groove (243), the second-level tooth rolling groove (244) and the third-level tooth rolling groove (245) are all processing teeth, and three anti-slip teeth (246) arranged parallel to the processing teeth are integrally connected between all connected processing teeth on the working surface of the static structure plate (24).

4. The rivet processing equipment according to claim 3, characterized in that: The downward pressure limiting mechanism (3) comprises a supporting slide bar (31), a top plate (32), a hand wheel (33), an adjusting screw rod (34), an adjusting plate (35) and a linkage limiting assembly. The supporting slide bar (31) is fixedly mounted on the top of the tilting base (23) and is arranged perpendicular to the top surface of the tilting base (23). The top plate (32) is fixedly mounted on the top of the supporting slide bar (31). Both sides of the adjusting plate (35) are connected to the supporting slide bar (31) in a limited sliding manner via linear bearings. The lower end of the adjusting screw rod (34) is rotatably connected to the adjusting plate (35) via a bearing. The upper end of the adjusting screw rod (34) is threadedly connected to the top plate (32) via a threaded sleeve. The upper end of the adjusting screw rod (34) passes through the top plate (32) and is fixedly connected to the hand wheel (33). An accommodating cavity is provided at one end of the adjusting plate (35) close to the tilting base (23). A linkage limiting assembly that is linked to the movement of the dynamic structure plate (26) is arranged in the accommodating cavity.

5. The rivet processing equipment according to claim 4, characterized in that: The linkage type limiting assembly comprises a rotating rod (36), a transmission gear (37), a transmission rack (38) and a transfer belt (39); the two rotating rods (36) are rotatably mounted on the left and right sides of the accommodating groove via bearings; the transfer belt (39) is wound around the outside of the rotating rods (36); the two rotating rods (36) are transmission-connected via the transfer belt (39); a transmission gear (37) is fixedly mounted on the outer ring surface of the left rotating rod (36); and a transmission rack (38) meshingly connected with the transmission gear (37) is fixedly mounted on the dynamic structure plate (26).

6. The rivet processing equipment according to claim 5, characterized in that: The support plate (41) is fixedly mounted on the bottom of the conveying belt (39) and close to the left rotating rod (36), and the lower ends of the driving pressing block (43) and the driven side sliding block (44) are provided with surrounding limiting components.

7. The rivet processing equipment according to claim 6, characterized in that: The enclosing limit assembly comprises a stopper (47), a side limiter (48) and a capsule (49); the side limiter (48) is fixedly mounted on the lower end of the driven side slider (44) close to the driving pressure block (43); the stopper (47) is fixedly mounted on the lower end of the driving pressure block (43); the stopper (47) and the side limiter (48) cooperate to form a U-shaped material receiving area; the capsule (49) is also fixedly mounted on the lower end of the driving pressure block (43); the interior of the capsule (49) is a non-Newtonian fluid.

8. The rivet processing equipment according to claim 1, characterized in that: The main body of the static structure plate (24) adopts a regular rectangular structure, and the parts of the working surface of the static structure plate (24) other than the first processing area (241) and the second processing area (242) are arranged in a smooth surface.

9. A method for processing a rivet, characterized in that: The following steps are involved: Main body forming: applying pressure to the metal wire using the die of a cold heading machine at room temperature to cause the wire to undergo plastic deformation, thereby forming the basic shape of the rivet main body (5); Groove processing: The rivet processing equipment according to claim 7 is used to perform groove processing on the rivet rod (52) of the rivet body (5). Specifically, the blanks are transferred one by one in the same posture between the static structure plate (24) and the dynamic structure plate (26) through the loading plate (22), and the power source (21) is started to drive the dynamic structure plate (26) to reciprocate along the length direction of the guide frame (25), and the rivet body (5) will roll between the static structure plate (24) and the dynamic structure plate (26) driven by the dynamic structure plate (26); during the rolling process, the rivet rod (52) passes through the first-level rolling groove (243), the second-level rolling groove (244) and the third-level rolling groove (245) in sequence, and the three-level rolling groove (53) is gradually deepened and formed with the cooperation of the three; Surface treatment: pickling is used to remove pollutants on the surface of the rivet body (5), and after pickling, the rivet body (5) is rinsed with clean water to remove residual acid. Secondly, a silver plating layer is evenly deposited on the surface of the rivet body (5) by electroplating.

10. A rivet, using the rivet processing method according to claim 9, characterized in that: It comprises a rivet cap (51), the bottom of which is fixedly connected to a rivet rod (52), the outer ring surface of the rivet rod (52) is provided with triangular grooves (53), and three groups of triangular grooves (53) are evenly arranged at equal intervals along the circumference of the rivet rod (52).

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