Single-operator electromagnetic riveter

Abstract

The application discloses a single-person operating type electromagnetic riveting gun, which comprises a shell, a pincer-shaped anvil, a riveting head assembly, a discharge coil assembly, an inner driving assembly and a driving coil assembly and the like driven by a magnetic field, wherein the discharge coil assembly and the driving coil assembly generate a back-to-back movement, the discharge coil assembly drives the riveting head assembly to transfer an impact to the left, the impact is finally transferred to a rivet, under the support and block of the pincer-shaped anvil connected with the shell, the rivet between the support surface of the pincer-shaped anvil and the riveting head assembly is deformed to complete riveting of the riveting piece, in the process, no additional anvil is arranged outside the environment, so that the operation can be performed in a narrow space, and since the anvil is integrated with the riveting gun, the two coil assemblies cannot be abutted by relying on human force to press the whole riveting device, therefore, the inner driving assembly is specially arranged to control the position between the two coil assemblies.

Description

Technical Field

[0001] This invention relates to the field of riveting equipment, and more specifically to a single-person operated electromagnetic riveting gun. Background Technology

[0002] With the development of lightweight structures in manufacturing industries such as automobiles and aerospace, the application of lightweight structural materials (such as titanium, aluminum, and magnesium alloys) is increasing. Electromagnetic forming technology, which can overcome the forming difficulties of these materials, has been widely used in aerospace and automotive industries.

[0003] Electromagnetic riveting, belonging to the field of electromagnetic forming, is a novel riveting method. It typically comprises a discharge coil assembly and a drive coil assembly, both of which contain electromagnetic coils. During riveting, the two coil assemblies are brought into contact, generating a magnetic field in the electromagnetic coils. The pulsed electromagnetic force between these two magnetic fields drives a high-speed relative motion between the two coil assemblies, thereby causing the rivet head to impact the rivet. In existing technologies, the rivet gun and the jack are separate structures. The riveting component is located between the jack and the rivet head. The rivet passes through the riveting component and is held between the jack and the rivet head. When the impact force from the rivet head is transmitted to the rivet, it deforms, thus completing the riveting connection.

[0004] Both traditional pneumatic riveting and electromagnetic riveting typically involve a rivet gun and a jack, each held by two riveters who hold the rivet from both sides to form it. Electromagnetic riveting generally forms the rivet in one pass, while pneumatic riveting involves multiple hammer blows. Compared to pneumatic riveting, the electromagnetic force of an electromagnetic riveting gun is significantly greater than the average hammer force per blow. Therefore, the jack for electromagnetic riveting is heavier and larger than that for traditional pneumatic riveting. This restricts the size and movement of the jack in environments with limited open spaces or complex workspaces, thus limiting the application of electromagnetic riveting technology. Summary of the Invention

[0005] The purpose of this invention is to overcome the problems in the prior art and provide a single-person operated electromagnetic riveting gun that uses a clamp-shaped top iron connected to the housing to support the rivet, thereby enabling the user to operate it alone in a narrow space.

[0006] This invention provides a single-person operated electromagnetic riveting gun, comprising:

[0007] The shell has a horizontal cavity inside, and the cavity has an outlet at the left end of the shell;

[0008] The clamp-shaped top iron is detachably connected to the outlet of the housing. The clamp-shaped top iron includes a mounting end and a bending body. The mounting end is detachably connected to the lower part of the outlet of the housing. The bending body extends upward and has a contact surface facing the outlet.

[0009] The rivet joint assembly is slidably connected to the cavity in the left-right direction, and the rivet joint assembly extends out of the outlet.

[0010] The discharge coil assembly is located at the right end of the rivet joint assembly;

[0011] Internal drive assembly, which is located inside the housing;

[0012] The drive coil assembly is connected to the inner drive assembly, which is used to drive the drive coil assembly to move left and right within the cavity, and the drive coil assembly can abut and contact the discharge coil assembly.

[0013] In one embodiment, the rivet assembly includes: a rivet body, a rivet die, and a partition plate. The rivet body is a horizontally placed semi-cone. The radius of the left end face of the rivet body is smaller than the radius of the right end face of the rivet body. The rivet die is fixedly connected to the left section of the rivet body, and the partition plate is connected to the right end face of the rivet body.

[0014] In one embodiment, the discharge coil assembly includes: a discharge coil body, which is connected to the right end face of a rivet head body by bolts, the bolts passing through a partition, the partition being located between the discharge coil body and the rivet head body.

[0015] In one embodiment, the drive coil assembly includes a drive coil body and a slider, the slider being slidably connected to the cavity in a left-right direction, the drive coil body being connected to the left end of the slider, and the right end of the slider being connected to the inner drive assembly.

[0016] In one embodiment, a horizontal slide is provided at the center of the slider, the left end of the slide has an opening on the left side of the slider, the right end of the slide is closed, the rivet assembly also includes a shaft, the left end of the shaft passes through the partition and is fixedly connected to the rivet body, the right end of the shaft passes into the slide, and an elastic element is connected between the right end of the shaft and the inner right end of the slide.

[0017] In one embodiment, a protective sleeve is fixedly connected to the inner wall of the cavity, and the protective sleeve is located between the outer side of the slider and the inner wall of the cavity.

[0018] In one embodiment, the internal drive assembly includes a cylinder body and a cylinder piston. The cylinder body is located at the right end of the cavity, and the cylinder piston is connected between the slider and the cylinder body. The cylinder body is used to drive the cylinder piston to move left and right, and the cylinder body is also used to buffer the rightward impact force received by the cylinder piston.

[0019] In one embodiment, a cooling air passage is provided inside the slider, and a cooling air passage interface connecting the inside and outside of the housing is provided on the housing. The cooling air passage has a slider air inlet and a slider air outlet on the outer surface of the slider. The slider air outlet is connected to the inside of the housing. A connecting piece connects the slider at the slider air inlet and the cooling air passage interface. The cooling air passage interface is connected to an external cooling air source.

[0020] In one embodiment, it further includes: a solenoid valve assembly, which is located at the right end of the housing. The solenoid valve is connected to the cylinder body via an air pipe. The solenoid valve assembly is used to control the inflation and deflation of the cylinder body, and can control the air pressure in the cylinder body.

[0021] In one embodiment, the solenoid valve assembly is also connected to a cooling air duct interface, and the solenoid valve assembly is also used to control the gas flow rate in the cooling air duct.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows: The internal drive assembly causes the drive coil assembly to move to the left within the cavity until the drive coil assembly abuts against the discharge coil assembly. This activates the discharge coil assembly and the drive coil assembly, causing the electromagnetic coils in both assemblies to generate a magnetic field. Driven by this magnetic field, the discharge coil assembly and the drive coil assembly move in opposite directions. The rightward movement of the drive coil assembly is supported and blocked by the driving force of the internal drive assembly, while the discharge coil assembly drives the riveting head assembly to transmit the impact to the left. The impact is ultimately transmitted to the rivet. Under the support and obstruction of the clamp-shaped top iron, the rivet between the supporting surface of the clamp-shaped top iron and the riveting head assembly deforms, thus completing the riveting of the riveted parts. In this process, no additional top iron is set externally; instead, a clamp-shaped top iron connected to the housing is used to support the rivet, allowing operation in a narrow space. Furthermore, since the top iron and the rivet gun are integrated, it is impossible to rely on manual pressure to press the entire riveting device to abut the discharge coil assembly and the drive coil assembly. Therefore, an internal drive assembly is specifically designed to control the position between the discharge coil assembly and the drive coil assembly. Attached Figure Description

[0023] Figure 1 This is a schematic front view cross-sectional view of the main structure in this invention;

[0024] Figure 2 This is a side cross-sectional view of a portion of the structure in this invention.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Housing; 11. Protective Sleeve; 2. Clamping Top Iron; 21. Mounting End; 22. Bending Body; 23. Contact Surface; 3. Rivet Joint Assembly; 31. Rivet Joint Body; 32. Riveting Die; 33. Partition; 34. Shaft; 35. Elastic Component; 41. Discharge Coil Body; 5. Internal Drive Assembly; 51. Cylinder Body; 52. Cylinder Piston; 6. Drive Coil Assembly; 61. Drive Coil Body; 62. Slider; 71. Cooling Air Channel; 72. Cooling Air Channel Interface; 73. Slider Air Inlet; 74. Slider Air Outlet; 8. Solenoid Valve Assembly. Detailed Implementation

[0027] The specific embodiments of the present invention are described in detail below, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0028] This invention provides a single-person operated electromagnetic riveting gun, comprising: a housing 1, a clamp-shaped top iron 2, a riveting head assembly 3, a discharge coil assembly, an internal drive assembly 5, and a drive coil assembly 6. The housing 1 has a horizontal cavity inside, with an outlet at the left end of the cavity. The clamp-shaped top iron 2 is detachably connected to the outlet of the housing 1. The clamp-shaped top iron 2 includes a mounting end 21 and a bending body 22. The mounting end 21 is detachably connected to the lower part of the outlet of the housing 1. The bending body 22 extends upward and has a contact surface 23 facing the outlet. The riveting head assembly 3 is slidably connected to the cavity in a left-right direction and extends through the outlet. The rivet is located between the left end of the riveting head assembly 3 and the contact surface 23. The discharge coil assembly is located at the right end of the riveting head assembly 3. The internal drive assembly 5 is located inside the housing 1. The drive coil assembly 6 is connected to the internal drive assembly, which drives the drive coil assembly 6 to move left and right within the cavity, and the drive coil assembly 6 can abut and contact the discharge coil assembly.

[0029] For details, please refer to Figure 1When riveting begins, the part to be riveted is placed between the left end of the riveting head assembly 3 and the contact surface 23. The rivet passes through the part to be riveted and is stuck between the left end of the riveting head assembly 3 and the contact surface 23. The inner drive assembly 5 is activated, causing it to drive the drive coil assembly 6 to move to the left in the cavity until the drive coil assembly 6 comes into contact with the discharge coil assembly. At this point, the two come into contact and abut. The discharge coil assembly and the drive coil assembly are activated, causing the electromagnetic coils in the two coil assemblies to generate a magnetic field. Under the drive of the magnetic field, the discharge coil assembly and the drive coil assembly 6 move in opposite directions. The rightward movement of the drive coil assembly 6 is supported and blocked by the driving force of the inner drive assembly 5, while the discharge coil assembly drives the riveting head assembly to transmit the impact to the left. The impact is finally transmitted to the rivet. Under the support and blocking of the clamp-shaped top iron 2, the rivet that comes into contact with the support surface 23 of the clamp-shaped top iron 2 and the riveting head assembly 3 will deform, thus completing the riveting of the part. In this process, no additional top iron is set on the outside. Instead, a clamp-shaped top iron connected to the housing 1 is used to support the rivet, so that it can be operated in a narrow space. Since the top iron is integrated with the device, it is impossible to rely on manual pressure to apply pressure to the overall riveting device to put the discharge coil assembly and the drive coil assembly against each other. Therefore, an internal drive assembly 5 is specially set to control the position between the discharge coil assembly and the drive coil assembly.

[0030] The main functions of the discharge coil assembly and the drive coil assembly 6 are consistent with the coil setup used in electromagnetic riveting equipment in the prior art. They both generate a magnetic field when energized, thereby generating a magnetic force between them and driving them to move / move.

[0031] In one embodiment, the lower part of the housing 1 is provided with an additionally reinforced rivet gun base, and the clamp-shaped top iron 2 is connected to the rivet gun base. During riveting, when the impact force is delivered to the rivet, the impact force acting on the clamp-shaped top iron 2 will be transmitted to the rivet gun base, which improves the reliability of the rivet gun structure. The integration of the clamp-shaped top iron 2 with the main structure of the rivet gun eliminates the need for the traditional separate top iron, reduces labor, improves the riveting quality, and is more convenient to use in narrow spaces.

[0032] In this embodiment, the clamp-shaped top iron 2 and the coil base are detachably connected by bolts. Different top irons can be replaced according to different upsetting head shapes and different workpiece structures. The position of the clamp-shaped top iron 2 on the rivet gun base remains fixed, so that the center of the top iron and the center of the left end of the rivet head assembly 3 are on the same axis, avoiding misalignment between the rivet force receiving point and the top iron, which would result in low upsetting head forming quality.

[0033] In one embodiment, the rivet assembly 3 includes: a rivet body 31, a rivet die 32, and a partition plate 33. The rivet body 31 is a horizontally placed semi-cone. The radius of the left end face of the rivet body 31 is smaller than the radius of the right end face of the rivet body 31. The rivet die 32 is fixedly connected to the left section of the rivet body 31. The partition plate 33 is connected to the right end face of the rivet body 31. The rivet is located between the rivet die 32 and the top iron.

[0034] In one embodiment, the discharge coil assembly includes: a discharge coil body 41, which is connected to the right end face of a rivet head body 31 by bolts, the bolts passing through a partition 33, the partition 33 being located between the discharge coil body 41 and the rivet head body 31.

[0035] In this embodiment, the riveting die 32 and the riveting head body 31 are connected by threads, and different riveting dies 32 can be replaced according to riveting needs. The discharge coil body 41 and the riveting head body 31 are connected by bolts, and the two are separated by a partition 4.

[0036] In one embodiment, the drive coil assembly 6 includes a drive coil body 61 and a slider 62. The slider 62 is slidably connected to the cavity in the left-right direction. The drive coil body 61 is connected to the left end of the slider 62, and the right end of the slider 62 is connected to the inner drive assembly 5.

[0037] In this embodiment, the left end of the slider 62 is provided with a coil base for fixing and installing the drive coil 61. The coil base has a horizontal central column. The drive coil 61 is made of copper strip wound together. The copper strips are insulated with high temperature and high pressure resistant insulating glue and fixedly connected to the central column of the coil base. The coil base 7 and the slider 62 are connected by bolts.

[0038] In one embodiment, a horizontal slide is provided at the center of the slider 62. The left end of the slide has an opening on the left side of the slider 62, and the right end of the slide is closed. The rivet assembly 3 also includes a shaft 34. The left end of the shaft 34 passes through the partition 33 and is fixedly connected to the rivet body 31. The right end of the shaft 34 passes into the slide, and an elastic member 35 is connected between the right end of the shaft 34 and the inner right end of the slide.

[0039] In this embodiment, one side of the shaft 34 is threadedly connected to the rivet head body 31, and the other side of the shaft 34 is bolted to a shaft sleeve. The shaft 34 passes through the slide rail and can reciprocate together with the shaft sleeve. The slide rail inside the slider 62 restricts the movement distance of the shaft sleeve. When the shaft sleeve abuts against the right end of the slide rail, the distance between the discharge coil body 41 and the drive coil body 61 is the farthest.

[0040] In this embodiment, the elastic element 35 is a spring, located between the right end of the shaft sleeve and the right end of the slide rail. By compressing the spring through the shaft sleeve, the discharge coil body 41 and the drive coil body 61 come into contact and abut against each other, thus initiating the riveting operation. After discharge, the cylinder body 51 absorbs the rearward impact force, effectively reducing the recoil of the riveting gun and providing good shock absorption. When the spring is in its natural state, the discharge coil body 41 and the drive coil body 61 are separated, with a 15mm gap between them, ensuring that even if accidentally triggered, it will not cause injury to the operator.

[0041] In one embodiment, a protective sleeve 11 is fixedly connected to the inner wall of the cavity. The protective sleeve 11 is located between the outer side of the slider 62 and the inner wall of the cavity, thereby reducing the wear caused by the mutual friction between the inner wall of the cavity and the slider 62.

[0042] In one embodiment, the internal drive assembly 5 includes a cylinder body 51 and a cylinder piston 52. The cylinder body 51 is located at the right end of the cavity, and the cylinder piston 52 is connected between the slider 62 and the cylinder body 51. The cylinder body 51 is used to drive the cylinder piston 52 to move left and right, and the cylinder body 51 is also used to buffer the rightward impact force received by the cylinder piston 52.

[0043] In this embodiment, the cylinder body 51 is bolted to the housing 1, and the cylinder piston 52 is threaded to the slider 62. By inflating the cylinder body 51, the cylinder piston 52 moves to the left, causing the drive coil assembly to abut against the discharge coil assembly and the rivet head body 31 connected to the discharge coil assembly. This causes the rivet head body 31 and the clamp-shaped top iron 2 to clamp the rivet passing through the rivet, thereby completing the fixing of the rivet.

[0044] Because the top iron structure and the rivet gun structure are integrated in this device, the leftward impact force and rightward recoil force generated during riveting will both act back on the device itself, causing significant vibration and affecting operation. To reduce vibration, a cylinder device was specifically chosen as the power source for the internal drive component 5. Due to the compressed gas inside the cylinder body, when the rightward recoil force is generated, the gas in the cylinder body 51 can effectively absorb the recoil force generated during riveting, reducing the recoil force and vibration generated by the rivet gun. The cylinder body is connected to the rivet gun base, allowing the remaining recoil force to be transferred to the rivet gun base, making the rivet gun structure safer and more reliable.

[0045] In one embodiment, please refer to Figure 1-2The slider 62 is also provided with a cooling air passage 71. The housing 1 is provided with a cooling air passage interface 72 that connects the inside and outside of the housing 1. The cooling air passage 71 is provided with a slider air inlet 73 and a slider air outlet 74 on the outer surface of the slider 62. The slider air outlet 74 is connected to the inside of the housing 1. The slider 62 is connected to the cooling air passage interface 72 at the slider air inlet 73. The cooling air passage interface 72 is connected to an external cooling air source.

[0046] In this embodiment, the cooling air enters the housing 1 through the slider air outlet 74, which increases the air flow rate inside the housing 1 and effectively reduces the temperature of the discharge coil body 41 and the drive coil body 61 during operation, which is beneficial to improving the service life of the coil.

[0047] In one embodiment, it further includes: a solenoid valve assembly 8, which is located at the right end of the housing 1. The solenoid valve is connected to the cylinder body 51 via an air pipe. The solenoid valve assembly 8 is used to control the inflation and deflation of the cylinder body 51, and the solenoid valve assembly 8 can control the air pressure in the cylinder body 51.

[0048] Compared to traditional fixed-value dampers, the cylinder body 51 in this embodiment can achieve different damping values ​​by adjusting the air pressure, allowing operators to adjust the air pressure according to their own needs. When riveting rivets of different diameters and materials, different air pressure values ​​can also be adjusted according to different riveting forces to achieve better vibration reduction.

[0049] In one embodiment, the solenoid valve assembly 8 is also connected to the cooling air passage interface 72, and the solenoid valve assembly 8 is also used to control the gas flow rate in the cooling air passage 71.

[0050] In one embodiment, the handle housing is connected to the housing 1 by bolts. The handle housing is equipped with a charging button, a discharging button, a charging switch, a discharging switch, a charging completion indicator light, and an aviation plug. The charging switch, discharging switch, and charging completion indicator light are connected to the same aviation plug, which is then connected to the power control system to control the charging and discharging of the rivet gun.

[0051] In one embodiment, including the features described in the above embodiments, the complete workflow of this embodiment includes the following steps:

[0052] 1. Check if the rivet gun is in standby mode. At this time, the cylinder body 51 is not charged and the distance between the cylinder body 51 and the slider 62 is the shortest, which can make the gap between the clamp-shaped top iron 2 and the rivet head body 31 the largest, so that the clamp-shaped top iron 2 can be placed on the workpiece part that needs to be riveted.

[0053] 2. Manually fill rivets;

[0054] 3. Extend the clamp-shaped ejector 2 to the lower part of the workpiece to be riveted, and align the riveting assembly 3 with the rivet part to be riveted. During the riveting operation, it is also necessary to ensure that the rivet is between the clamp-shaped ejector 2 and the riveting die 32, and that the riveting die 32, the clamp-shaped ejector 2 and the rivet are in good contact.

[0055] 4. Press the rivet gun inflation button. The cylinder body 51 is inflated, and the slider 62 moves to the left along with the cylinder piston 52. The movement stops when the rivet head assembly 3 and the clamp-shaped top iron 2 are in full contact with the rivet. At this time, the rivet die 32 and the contact surface 23 should clamp the rivet.

[0056] 5. Press the rivet gun charging button. The charging voltage is preset by the power control system. The indicator light will illuminate when charging is complete, indicating that the capacitor is fully charged.

[0057] 6. Press the rivet gun discharge button to discharge the discharge coil body 61, completing the riveting operation. At the same time, the solenoid valve 8 is de-energized, and the cylinder body 51 exhausts gas.

[0058] 7. Remove the rivet gun, check the riveting quality, and return the rivet gun to standby mode.

[0059] Repeat steps 2-8 to continue the next riveting operation.

[0060] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A single-person operated electromagnetic riveting gun, characterized in that, include: The housing (1) has a horizontal cavity inside, and the cavity has an outlet at the left end of the housing (1); A clamp-shaped top iron (2) is detachably connected to the outlet of the housing (1). The clamp-shaped top iron (2) includes a mounting end (21) and a bending body (22). The mounting end (21) is detachably connected to the lower part of the outlet of the housing (1). The bending body (22) extends upward and has a contact surface (23) facing the outlet. The rivet assembly (3) is slidably connected to the cavity in the left-right direction, and the rivet assembly (3) extends out of the outlet; A discharge coil assembly is located at the right end of the rivet assembly (3); An internal drive assembly (5) is disposed inside the housing (1); A drive coil assembly (6) is connected to the inner drive assembly. The inner drive assembly is used to drive the drive coil assembly (6) to move left and right in the cavity, and the drive coil assembly (6) can abut and contact the discharge coil assembly. The rivet assembly (3) includes: a rivet body (31), a rivet die (32), and a partition (33), wherein the partition (33) is connected to the right end face of the rivet body (31); The drive coil assembly (6) includes: a drive coil body (61) and a slider (62). The slider (62) is slidably connected to the cavity in the left and right direction. The drive coil body (61) is connected to the left end of the slider (62), and the right end of the slider (62) is connected to the inner drive assembly (5). The slider (62) has a horizontal slide rail at its center. The left end of the slide rail has an opening on the left side of the slider (62), and the right end of the slide rail is closed. The rivet assembly (3) also includes a shaft (34). The left end of the shaft (34) passes through the partition (33) and is fixedly connected to the rivet body (31). The right end of the shaft (34) passes into the slide rail, and an elastic element (35) is connected between the right end of the shaft (34) and the inner right end of the slide rail. The internal drive assembly (5) includes a cylinder body (51) and a cylinder piston (52). The cylinder body (51) is located at the right end of the cavity. The cylinder piston (52) is connected between the slider (62) and the cylinder body (51). The cylinder body (51) is used to drive the cylinder piston (52) to move left and right. The cylinder body (51) is also used to buffer the rightward impact force received by the cylinder piston (52).

2. The single-person operated electromagnetic riveting gun as described in claim 1, characterized in that, The rivet head body (31) is a horizontally placed semi-cone. The radius of the left end face of the rivet head body (31) is smaller than the radius of the right end face of the rivet head body (31). The rivet die (32) is fixedly connected to the left section of the rivet head body (31).

3. The single-person operated electromagnetic riveting gun as described in claim 2, characterized in that, The discharge coil assembly includes: a discharge coil body (41), which is connected to the right end face of a rivet head body (31) by bolts, the bolts passing through the partition (33), the partition (33) being located between the discharge coil body (41) and the rivet head body (31).

4. The single-person operated electromagnetic riveting gun as described in claim 1, characterized in that, A protective sleeve (11) is fixedly connected to the inner wall of the cavity. The protective sleeve (11) is located between the outer side of the slider (62) and the inner wall of the cavity.

5. The single-person operated electromagnetic riveting gun as described in claim 1, characterized in that, The slider (62) is also provided with a cooling air passage (71). The housing (1) is provided with a cooling air passage interface (72) that connects the inside and outside of the housing (1). The cooling air passage (71) is provided with a slider air inlet (73) and a slider air outlet (74) on the outer surface of the slider (62). The slider air outlet (74) is connected to the inside of the housing (1). The slider (62) is connected to the cooling air passage interface (72) at the slider air inlet (73) by a connecting piece. The cooling air passage interface (72) is connected to an external cooling air source.

6. The single-person operated electromagnetic riveting gun as described in claim 5, characterized in that, Also includes: Solenoid valve assembly (8) is located at the right end of the housing (1). The solenoid valve is connected to the cylinder body (51) via an air pipe. The solenoid valve assembly (8) is used to control the inflation and deflation of the cylinder body (51). The solenoid valve assembly (8) can control the air pressure in the cylinder body (51).

7. A single-person operated electromagnetic riveting gun as described in claim 6, characterized in that, The solenoid valve assembly (8) is also connected to the cooling air passage interface (72), and the solenoid valve assembly (8) is also used to control the gas flow rate in the cooling air passage (71).

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