Spin pressing riveting machine

Abstract

The invention relates to a pressing and rotating riveting machine which comprises a rotating mechanism, a riveting machine head, a displacement assembly and a rack, the riveting machine head is installed on the rotating mechanism, the rotating mechanism is installed on the displacement assembly, the displacement assembly is installed on the rack, the pressing and rotating riveting machine further comprises a hammering assembly, and the hammering assembly comprises a cam, a sliding rod and an elastic piece. The cam is installed on the rotating mechanism, the sliding rod is connected into the riveting machine head in a sliding mode and located below the rotating mechanism, the elastic piece is arranged between the sliding rod and the riveting machine head in a compressed mode so that the upper end of the sliding rod can abut against the cam all the time, and the moving track of the cam is non-circular. By the adoption of the scheme, riveting of small-size rivets can be conducted in the mode that the riveting machine head rotates and knocks at the same time, and the problems of deformation and breakage possibly occurring in the machining process of the small-size rivets are effectively solved.

Description

Technical Field

[0001] The invention relates to the technical field of rotary riveting machines, in particular to a pressure rotary riveting machine. Background Art

[0002] Traditional riveting technology mainly relies on manual operation or simple mechanical devices. This method is not only inefficient, but also difficult to guarantee in terms of accuracy and consistency. With the continuous development of the manufacturing industry, the precision requirements for the connection of parts are getting higher and higher. The traditional riveting method can no longer meet the needs of modern industrial production. In recent years, press-spin riveting technology, as a new riveting method, has been widely used in various industries because it can provide higher connection strength and better sealing performance.

[0003] The most commonly used riveting equipment on the market is the radial riveting machine. The radial riveting technology stands out in many application scenarios due to its advantages such as minimal material deformation and almost no noise and vibration when riveting with the connected parts. In addition, the radial riveting machine does not need to clamp the rivet when riveting the workpiece. Even if the rivet center is slightly offset from the spindle center, the riveting work can be carried out smoothly, which makes it easier to automate or configure in the production line. Therefore, radial riveting is a very economical riveting technology.

[0004] The Chinese utility model patent with patent number 2014206613620 discloses a radial riveting machine, which drives the main shaft to rotate through a vertical motor, thereby driving the lower seat to rotate. The eccentric gear shaft in the lower seat rotates in a plum blossom-shaped trajectory in the inner gear ring, driving the spherical riveting seat and the rivet head to rotate in a similar plum blossom-shaped trajectory. During the rotation process, the contact area between the rivet head and the rivet is very small, and only a small axial force is required to make the riveting reach the yield point, so that the riveted material flows radially to complete the riveting. This method greatly reduces the axial impact force and ensures the stability of the up and down movement of the radial riveting machine.

[0005] However, since the plum blossom-shaped motion path of the radial riveting machine is designed to be longer, it can cover a larger rivet surface area to ensure that the rivet is evenly stressed in all directions, but this is only suitable for processing larger rivets. For small rivets, this path may cause the motion path to not match the actual required pressure distribution. In addition, since small rivets are made of thinner materials or have smaller diameters, their ability to withstand multiple radial impacts is limited. If the processing head hits the small rivet multiple times along the plum blossom path, it may cause the rivet to be subjected to excessive pressure at certain specific locations, causing the rivet to deform or even break. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide a rotary riveting machine, which performs riveting of small-sized rivets by rotating the riveting head while striking, thereby effectively avoiding the deformation and breakage problems that may occur in the small-sized rivets during the processing.

[0007] In order to solve the above technical problems, the technical solutions provided by the present invention are as follows:

[0008] A pressure-rotation riveting machine comprises a rotating mechanism, a riveting head, a displacement assembly and a frame, wherein the riveting head is mounted on the rotating mechanism, the rotating mechanism is mounted on the displacement assembly, the displacement assembly is mounted on the frame, and further comprises a hammer assembly, wherein the hammer assembly comprises a cam, a slide bar and an elastic member, wherein the cam is mounted on the rotating mechanism, the slide bar is slidably connected in the riveting head and is located below the rotating mechanism, the elastic member is compressed and arranged between the slide bar and the riveting head so that the upper end of the slide bar always rests against the cam, and the running track of the cam is non-circular.

[0009] The present invention drives the riveting machine head to move up and down through a hammering assembly, thereby realizing hammering of small-sized rivets. The hammering action is realized through the coordinated movement of the slide bar, the elastic member and the cam. The specific principle is as follows: since the elastic member is compressed and arranged between the slide bar and the riveting machine head and the slide bar is slidably connected in the riveting machine head, the slide bar will move upward and abut against the cam due to the action of the elastic member; the cam will rotate under the drive of the rotating mechanism, but it is a non-circular motion, so when the cam rotates, the slide bar will move up and down, and a rivet head can be installed on the slide bar to realize the hammering action of the rivet head on the small-sized rivet.

[0010] Since small rivets are made of thinner materials or have smaller diameters, their ability to withstand impact is limited. Therefore, this design reduces the multi-angle impact on the rivet through direct up and down hammering action, reducing the risk of rivet deformation or breakage due to excessive local force. In addition, the up and down hammering motion can more easily control the impact force, making the equipment more adaptable to the material characteristics and size of small rivets.

[0011] It is worth mentioning that the hammering action can provide force perpendicular to the surface of the rivet, while the rotating action brought by the rotating mechanism ensures that the force is evenly distributed around the rivet, which can reduce stress concentration, which is especially important for small-sized rivets because their materials are thinner or their diameters are smaller, which are prone to deformation or breakage due to excessive force in one direction. The rotating action can also make the rivet material flow and compact in multiple directions, thereby enhancing the bonding force between the rivet and the workpiece and eliminating the tiny gap between the rivet and the workpiece, which helps to improve the overall strength, durability and sealing of the riveted point.

[0012] Preferably, the riveting machine head comprises a rotating frame and a first gear meshed with the rotating mechanism, the rotating frame is rotatably connected to the lower end of the displacement assembly, the first gear is fixedly mounted on the upper end of the rotating frame, and the slide bar is slidably connected to the inner wall of the rotating frame. In this way, the rotating mechanism can drive the rotating frame meshed with its gear to rotate; and the slide bar is slidably connected to the inner wall of the rotating frame, so that the slide bar can move up and down flexibly during the hammering process, while keeping synchronization with the rotating action, so as to achieve the synchronization of the rotation and hammering action during the riveting process. It is worth mentioning that compared with other transmission modes, gear transmission can provide a precise transmission ratio, ensure the synchronization of the movement between the rotating frame and the rotating mechanism, thereby improving the accuracy of riveting. Moreover, the gear transmission system performs better in terms of bearing impact and vibration, is not easily affected by external factors, and is very suitable for the working mode of hammering rivets in the present invention; during the riveting process, the hammering action may generate a large impact force and vibration, and the gear transmission system can stably transmit power to ensure that the movement of the riveting machine head is accurate and reliable, thereby improving the quality and efficiency of riveting.

[0013] Preferably, the slide bar is provided with a spline, and the inner wall of the rotating frame is provided with a spline groove, the spline is slidably connected to the spline groove, and the length of the spline groove is greater than the length of the spline. The sliding connection between the spline and the spline groove ensures that the transmission between the slide bar and the rotating frame is more precise, reduces the relative sliding during the transmission process, and improves the efficiency and stability of the transmission. Among them, the length of the spline groove is greater than the length of the spline, which provides a good guiding effect, so that the slide bar will not deviate during the movement, and also ensures that the slide bar has enough travel margin when moving up and down to prevent the spline from coming out of the spline groove or getting stuck. It is worth mentioning that compared with other connection methods, the spline connection has a larger contact area, so it can transmit higher torque, which is very important when rotating hammer rivets, and the spline connection provides better axial and radial positioning, and is not easy to loosen due to vibration.

[0014] Preferably, the rotating mechanism includes a first driving device, a rotating shaft and a second gear, the first driving device is fixedly connected to the displacement assembly, one end of the rotating shaft is connected to the working end of the first driving device, and the other end is rotatably connected to the displacement assembly, the rotating shaft is located above the slide bar, the cam is fixedly mounted on the rotating shaft and can abut against the upper end of the slide bar, and the second gear is mounted on the rotating shaft and meshes with the first gear. In this way, the rotating mechanism can move with the displacement assembly. The rotating shaft is located above the slide bar, and the cam is fixed on the rotating shaft, so that the first driving device can control the movement of the slide bar, and such a layout makes the entire rotating mechanism compact and saves space. The meshing of the first gear and the second gear ensures the high-precision transmission of the rotational motion.

[0015] Preferably, a rivet head is fixedly mounted on the lower end of the slide bar. In this way, since the slide bar and the rivet head are fixedly connected, any movement generated by the rotating mechanism can be quickly and efficiently transmitted to the rivet head, ensuring the immediacy and accuracy of the action. This efficient energy transfer not only improves the efficiency of the riveting operation, but also reduces the heating and wear of the equipment caused by energy loss, thereby extending the service life of the equipment and reducing maintenance costs. In addition, the real-time response feature also makes the riveting process more precise, which helps to improve the riveting quality and meet the requirements of high-precision operations.

[0016] Preferably, the displacement assembly includes a second driving device and a propulsion assembly, the second driving device is fixedly mounted on the frame, the propulsion assembly is mounted on the second driving device, the propulsion assembly can move up and down under the drive of the second driving device, and the rotating mechanism and the riveting head are both mounted on the lower end of the propulsion assembly. Integrating the rotating mechanism and the riveting head on the propulsion assembly simplifies the overall mechanical structure. Moreover, the movement of the propulsion assembly can simultaneously drive the displacement and rotation of the riveting head, thereby improving the continuity of the riveting process.

[0017] The displacement assembly further includes a guide rod, which is fixedly mounted on the propulsion assembly. A plurality of guide rods are provided, and the plurality of guide rods are slidably matched with the frame and the movement direction is consistent with the propulsion assembly. The provision of the guide rod ensures the straightness of the propulsion assembly when it moves up and down, reduces deviation and swing, and improves the accuracy of the riveting operation. The plurality of guide rods are slidably matched with the frame to form multi-point support, which increases the movement stability of the propulsion assembly and reduces the error caused by vibration.

[0018] Preferably, it also includes a positioning fixture, which includes a support frame, a clamping assembly and a mobile platform. The support frame and the clamping assembly are both installed on the mobile platform. The clamping assembly includes a clamping cylinder and a clamping block. The clamping block is located above the support frame, and the clamping block can be pressed onto the support frame under the drive of the clamping cylinder. Specifically, the clamping block presses the riveted product onto the support frame to prevent the riveted product from shaking during riveting, thereby ensuring the quality of riveting. The clamping cylinder can realize automated clamping action, improve the level of production automation, and reduce manual operation. Installing the support frame and the clamping assembly on the mobile platform can realize the processing of rivets in different positions without manual adjustment, thereby improving production efficiency and convenience.

[0019] Among them, there is one clamping block and both ends are fixedly connected to the clamping cylinder. A through hole is set at the center of the clamping block, and the through hole can be aligned with the rivet head under the drive of the mobile platform. The design of the through hole can assist in the alignment of the rivet head and the rivet, thereby improving the overall processing efficiency. The clamping mechanism of the traditional riveting machine needs to press both ends of the product to be processed to achieve stable clamping, but if the riveting position of the product to be riveted is at the end, the traditional clamping method cannot be used. However, this design only needs to expose the riveting position of the product at the through hole, and the rest of the parts are clamped by the clamping block, so as to achieve stable clamping of the processed product; at the same time, this partially exposed riveting method also helps to protect other parts of the workpiece from damage, ensuring the integrity of the workpiece and the riveting quality.

[0020] Preferably, a dust cover is also included, and the dust cover is fixedly installed on the outside of the rotating mechanism, so as to prevent dust and impurities from entering the rotating mechanism, which helps to maintain the processing accuracy of the equipment and prolong the service life of the equipment.

[0021] In summary, such a press-spin riveting machine can rivet small-sized rivets by rotating the riveting head while striking, thereby effectively avoiding the deformation and breakage problems that may occur in the small-sized rivets during the processing. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0023] Figure 1 The structure diagram of the press-spin riveting machine of the present invention is shown in FIG. Figure 1 ;

[0024] Figure 2 The structure diagram of the press-spin riveting machine of the present invention is shown in FIG. Figure 2 ;

[0025] Figure 3 It is a structural schematic diagram of the rotating mechanism and the riveting head in the press-spin riveting machine of the present invention;

[0026] Figure 4 It is a cross-sectional view of the rotating mechanism, the riveting head and the hammer assembly in the press-spin riveting machine of the present invention;

[0027] Figure 5 It is a structural schematic diagram of a slide bar in the press-spin riveting machine of the present invention;

[0028] Figure 6 It is a schematic structural diagram of a rotating frame in the press-spin riveting machine of the present invention;

[0029] Figure 7 It is a schematic structural diagram of the positioning fixture in the press-spin riveting machine of the present invention.

[0030] in:

[0031] 1-rotating mechanism; 11-first driving device; 12-rotating shaft; 13-second gear;

[0032] 2-riveting machine head; 21-rotating frame; 211-spline groove; 22-first gear; 23-rivet head;

[0033] 3- hammer assembly; 31- cam; 32- slide rod; 321- spline; 33- elastic member;

[0034] 4-displacement assembly; 41-second drive device; 42-propulsion assembly; 43-guide rod;

[0035] 5-positioning fixture; 51-support frame; 52-pressing assembly; 521-pressing block; 522-through hole; 53-moving platform;

[0036] 6- Dust cover. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0038] In the description of the present invention, it is necessary to understand that the directions and positional relationships indicated by “up”, “down”, “left”, “right”, “front”, “back”, “vertical”, “bottom”, “inside” and “outside”, etc., are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0039] Reference Figure 1-Figure 4 As shown, a pressure-rotation riveting machine includes a rotating mechanism 1, a riveting head 2, a displacement assembly 4 and a frame, the riveting head 2 is mounted on the rotating mechanism 1, the rotating mechanism 1 is mounted on the displacement assembly 4, the displacement assembly 4 is mounted on the frame, and also includes a hammer assembly 3, the hammer assembly 3 includes a cam 31, a slide bar 32 and an elastic member 33, the cam 31 is mounted on the rotating mechanism 1, the slide bar 32 is slidably connected in the riveting head 2 and is located below the rotating mechanism 1, the elastic member 33 is compressed and arranged between the slide bar 32 and the riveting head 2 so that the upper end of the slide bar 32 always rests on the cam 31, and the running track of the cam 31 is non-circular.

[0040] The present invention drives the riveting machine head 2 to move up and down through the hammering assembly 3, thereby realizing hammering of small-sized rivets. The hammering action is realized through the coordinated movement of the slide bar 32, the elastic member 33 and the cam 31. The specific principle is as follows: since the elastic member 33 is compressed and arranged between the slide bar 32 and the riveting machine head 2 and the slide bar 32 is slidably connected in the riveting machine head 2, the slide bar 32 will move upward and abut against the cam 31 due to the action of the elastic member 33; the cam 31 will rotate under the drive of the rotating mechanism 1, but it is a non-circular motion, so when the cam 31 rotates, the slide bar 32 will move up and down, and a rivet head 23 is installed on the slide bar 32 to realize the hammering action of the rivet head 23 on the small-sized rivet.

[0041] Since small rivets are made of thinner materials or have smaller diameters, their ability to withstand impact is limited. Therefore, this design reduces the multi-angle impact on the rivet through direct up and down hammering action, reducing the risk of rivet deformation or breakage due to excessive local force. In addition, the up and down hammering motion can more easily control the impact force, making the equipment more adaptable to the material characteristics and size of small rivets.

[0042] It is worth mentioning that the hammering action can provide a force perpendicular to the surface of the rivet, while the rotating action brought by the rotating mechanism 1 ensures that the force is evenly distributed around the rivet, which can reduce stress concentration, which is particularly important for small-sized rivets because their materials are thinner or their diameters are smaller, and they are prone to deformation or breakage due to excessive force in one direction. The rotating action can also make the rivet material flow and compact in multiple directions, thereby enhancing the bonding force between the rivet and the workpiece and eliminating the tiny gap between the rivet and the workpiece, which helps to improve the overall strength, durability and sealing of the riveted point.

[0043] In addition, refer to Figure 3 and Figure 4 As shown, the riveting machine head 2 includes a rotating frame 21 and a first gear 22 meshed with the rotating mechanism 1, the rotating frame 21 is rotatably connected to the lower end of the displacement assembly 4, the first gear 22 is fixedly mounted on the upper end of the rotating frame 21, and the slide bar 32 is slidably connected to the inner wall of the rotating frame 21. In this way, the rotating mechanism 1 can drive the rotating frame 21 meshed with its gear to rotate; and the slide bar 32 is slidably connected to the inner wall of the rotating frame 21, so that the slide bar 32 can flexibly move up and down during the hammering process, while keeping synchronization with the rotating action, so as to realize the synchronization of the rotation and hammering actions during the riveting process.

[0044] It is worth mentioning that, compared with other transmission modes, gear transmission can provide a precise transmission ratio, ensuring the synchronization of the movement between the rotating frame 21 and the rotating mechanism 1, thereby improving the accuracy of riveting. Moreover, the gear transmission system performs better in terms of bearing impact and vibration, is not easily affected by external factors, and is very suitable for the working mode of hammering rivets in the present invention; during the riveting process, the hammering action may generate a large impact force and vibration, while the gear transmission system can stably transmit power, ensuring the accurate and reliable movement of the riveting head 2, thereby improving the riveting quality and efficiency.

[0045] In addition, refer to Figure 5 and Figure 6 As shown, a spline 321 is provided on the slide bar 32, and a spline groove 211 is provided on the inner wall of the rotating frame 21. The spline 321 is slidably connected with the spline groove 211, and the length of the spline groove 211 is greater than the length of the spline 321. The sliding connection between the spline 321 and the spline groove 211 ensures that the transmission between the slide bar 32 and the rotating frame 21 is more accurate, reduces the relative sliding during the transmission process, and improves the efficiency and stability of the transmission. Among them, the length of the spline groove 211 is greater than the length of the spline 321, which provides a good guiding effect, so that the slide bar 32 will not deviate during the movement, and also ensures that the slide bar 32 has sufficient travel margin when moving up and down, preventing the spline 321 from escaping or getting stuck at the spline groove 211.

[0046] It is worth mentioning that compared with other connection methods, the spline 321 connection has a larger contact area and can therefore transmit higher torque, which is very important when rotary hammering rivets. In addition, the spline 321 connection provides better axial and radial positioning and is not easy to loosen due to vibration.

[0047] In addition, refer to Figure 3 and Figure 4 As shown, the rotating mechanism 1 includes a first driving device 11, a rotating shaft 12 and a second gear 13. The first driving device 11 is fixedly connected to the displacement assembly 4. One end of the rotating shaft 12 is connected to the working end of the first driving device 11, and the other end is rotatably connected to the displacement assembly 4. The rotating shaft 12 is located above the slide bar 32. The cam 31 is fixedly mounted on the rotating shaft 12 and can abut against the upper end of the slide bar 32. The second gear 13 is mounted on the rotating shaft 12 and meshes with the first gear 22. In this way, the rotating mechanism 1 can move with the displacement assembly 4. The rotating shaft 12 is located above the slide bar 32, and the cam 31 is fixed on the rotating shaft 12, so that the first driving device 11 controls the movement of the slide bar 32, and such a layout makes the entire rotating mechanism 1 compact and saves space. The first gear 22 and the second gear 13 are meshed to ensure high-precision transmission of the rotational motion. Among them, the first driving device 11 can be a common motor on the market.

[0048] In addition, refer to Figure 4 As shown, the lower end of the slide bar 32 is fixedly mounted with a rivet head 23. In this way, since the slide bar 32 and the rivet head 23 are fixedly connected, any movement generated by the rotating mechanism 1 can be quickly and efficiently transmitted to the rivet head 23, ensuring the immediacy and accuracy of the action. This efficient energy transfer not only improves the efficiency of the riveting operation, but also reduces the heating and wear of the equipment caused by energy loss, thereby extending the service life of the equipment and reducing maintenance costs. In addition, the real-time response feature also makes the riveting process more precise, which helps to improve the riveting quality and meet the requirements of high-precision operations.

[0049] In addition, refer to Figure 2 As shown, the displacement assembly 4 includes a second drive device 41 and a propulsion assembly 42. The second drive device 41 is fixedly mounted on the frame, and the propulsion assembly 42 is mounted on the second drive device 41. The propulsion assembly 42 can move up and down under the drive of the second drive device 41. The rotating mechanism 1 and the riveting head 2 are both mounted on the lower end of the propulsion assembly 42. The rotating mechanism 1 and the riveting head 2 are integrated into the propulsion assembly 42 to simplify the overall mechanical structure. Moreover, the movement of the propulsion assembly 42 can simultaneously drive the displacement and rotation of the riveting head 2, thereby improving the continuity of the riveting process. Among them, the second drive device 41 can be a motor, cylinder or oil cylinder commonly found on the market.

[0050] The displacement assembly 4 further includes a guide rod 43, which is fixedly mounted on the propulsion assembly 42. A plurality of guide rods 43 are provided, and the plurality of guide rods 43 are slidably matched with the frame and move in the same direction as the propulsion assembly 42. The provision of the guide rod 43 ensures the straightness of the propulsion assembly 42 when it moves up and down, reduces deviation and swing, and improves the accuracy of the riveting operation. The plurality of guide rods 43 are slidably matched with the frame to form a multi-point support, which increases the motion stability of the propulsion assembly 42 and reduces the error caused by vibration.

[0051] In addition, refer to Figure 7As shown, it also includes a positioning fixture 5, which includes a support frame 51, a clamping assembly 52 and a mobile platform 53. The support frame 51 and the clamping assembly 52 are both installed on the mobile platform 53. The clamping assembly 52 includes a clamping cylinder and a clamping block 521. The clamping block 521 is located above the support frame 51, and the clamping block 521 can be pressed on the support frame 51 under the drive of the clamping cylinder. Specifically, the clamping block 521 presses the riveted product on the support frame 51 to prevent the riveted product from shaking during riveting, thereby ensuring the quality of riveting. The clamping cylinder can realize an automated clamping action, improve the level of production automation, and reduce manual operation. Installing the support frame 51 and the clamping assembly 52 on the mobile platform 53 can realize the processing of rivets in different positions without manual adjustment, thereby improving production efficiency and convenience. Among them, the clamping cylinder is also fixedly mounted on the mobile platform 53. The mobile platform 53 can be a platform built by common electric slide rails on the market. The structure is relatively common, so it will not be described in detail in the present invention.

[0052] Among them, there is one clamping block 521 and both ends are fixedly connected to the clamping cylinder. A through hole 522 is set at the center of the clamping block 521, and the through hole 522 can be aligned with the rivet head 23 under the drive of the mobile platform 53. The design of the through hole 522 can assist the alignment of the rivet head 23 and the rivet, thereby improving the overall processing efficiency. The clamping mechanism of the traditional riveting machine needs to press both ends of the product to be processed to achieve stable clamping, but if the riveting position of the product to be riveted is at the end, the traditional clamping method cannot be used. However, this design only needs to expose the riveting position of the product at the through hole 522, and the rest of the parts are clamped by the clamping block 521, so as to achieve stable clamping of the processed product; at the same time, this partially exposed riveting method also helps to protect other parts of the workpiece from damage, ensuring the integrity of the workpiece and the riveting quality.

[0053] In addition, refer to Figure 1 As shown, a dust cover 6 is also included, and the dust cover 6 is fixedly installed on the outside of the rotating mechanism 1. In this way, dust and impurities can be prevented from entering the rotating mechanism 1, which helps to maintain the processing accuracy of the equipment and prolong the service life of the equipment.

[0054] In summary, such a rotary riveting machine can perform riveting of small-sized rivets by rotating the riveting head 2 while striking, thereby effectively avoiding the deformation and breakage problems of the small-sized rivets that may occur during the processing.

[0055] In short, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pressure-rotation riveting machine, comprising a rotating mechanism (1), a riveting head (2), a displacement assembly (4) and a frame, wherein the riveting head (2) is mounted on the rotating mechanism (1), the rotating mechanism (1) is mounted on the displacement assembly (4), and the displacement assembly (4) is mounted on the frame, characterized in that: The invention also comprises a hammer assembly (3), wherein the hammer assembly (3) comprises a cam (31), a slide bar (32) and an elastic member (33), wherein the cam (31) is mounted on the rotating mechanism (1), the slide bar (32) is slidably connected to the riveting machine head (2) and is located below the rotating mechanism (1), and the elastic member (33) is compressed and arranged between the slide bar (32) and the riveting machine head (2) so that the upper end of the slide bar (32) always abuts against the cam (31), and the running track of the cam (31) is non-circular.

2. The press-spin riveting machine according to claim 1, characterized in that: The riveting machine head (2) comprises a rotating frame (21) and a first gear (22) meshingly connected to the rotating mechanism (1); the rotating frame (21) is rotatably connected to the lower end of the displacement assembly (4); the first gear (22) is fixedly mounted on the upper end of the rotating frame (21); and the sliding rod (32) is slidably connected to the inner wall of the rotating frame (21).

3. The press-spin riveting machine according to claim 2, characterized in that: The sliding rod (32) is provided with a spline (321), the inner wall of the rotating frame (21) is provided with a spline groove (211), the spline (321) is slidably connected to the spline groove (211), and the length of the spline groove (211) is greater than the length of the spline (321).

4. The press-spin riveting machine according to claim 3, characterized in that: The rotating mechanism (1) comprises a first driving device (11), a rotating shaft (12) and a second gear (13); the first driving device (11) is fixedly connected to the displacement assembly (4); one end of the rotating shaft (12) is connected to the working end of the first driving device (11), and the other end is rotatably connected to the displacement assembly (4); the rotating shaft (12) is located above the sliding rod (32); the cam (31) is fixedly mounted on the rotating shaft (12) and can abut against the upper end of the sliding rod (32); the second gear (13) is mounted on the rotating shaft (12) and meshes with the first gear (22).

5. The press-spin riveting machine according to claim 1, characterized in that: A rivet head (23) is fixedly mounted on the lower end of the slide rod (32).

6. The press-spin riveting machine according to claim 1, characterized in that: The displacement assembly (4) comprises a second driving device (41) and a propulsion assembly (42), wherein the second driving device (41) is fixedly mounted on a frame, and the propulsion assembly (42) is mounted on the second driving device (41). The propulsion assembly (42) can move up and down under the drive of the second driving device (41), and the rotating mechanism (1) and the riveting machine head (2) are both mounted at the lower end of the propulsion assembly (42).

7. The press-spin riveting machine according to claim 6, characterized in that: The displacement assembly (4) further comprises a guide rod (43), wherein the guide rod (43) is fixedly mounted on the propulsion assembly (42), and a plurality of guide rods (43) are provided. The plurality of guide rods (43) are slidably matched with the frame and have a movement direction consistent with that of the propulsion assembly (42).

8. The press-spin riveting machine according to claim 5, characterized in that: It also includes a positioning fixture (5), the positioning fixture (5) includes a support frame (51), a clamping assembly (52) and a movable platform (53), the support frame (51) and the clamping assembly (52) are both installed on the movable platform (53), the clamping assembly (52) includes a clamping cylinder and a clamping block (521), the clamping block (521) is located above the support frame (51), and the clamping block (521) can be pressed onto the support frame (51) under the drive of the clamping cylinder.

9. The press-spin riveting machine according to claim 8, characterized in that: The clamping block (521) is provided with one and both ends are fixedly connected to the clamping cylinder, a through hole (522) is provided at the center of the clamping block (521), and the through hole (522) can be aligned with the rivet head (23) under the drive of the moving platform (53).

10. The press-spin riveting machine according to claim 1, characterized in that: It also comprises a dust cover (6), wherein the dust cover (6) is fixedly mounted on the outside of the rotating mechanism (1).

Images