Automatic riveting device and operation method for thin cylinder end cover

Abstract

The invention relates to an automatic riveting device and an operating method for a thin cylinder end cover, and relates to the technical field of cylinder assembly. The device is used to solve the problem that the riveting process of the end cover is currently performed manually, which is labor-intensive and has low production efficiency during the installation process of the thin cylinder end cover. The device comprises a pressurizing mechanism, a riveting tool and a loading and unloading mechanism. The pressurizing mechanism comprises a first workbench, a rotating platform, a gantry, a first pressurizing component and a second pressurizing component. The rotating platform is arranged on the first workbench, the gantry is fixedly connected to the first workbench, and the first pressurizing mechanism and the second pressurizing mechanism are both fixedly mounted on the gantry. The first pressurizing mechanism is used for positioning and pre-pressing a workpiece, and the second pressurizing mechanism is used for riveting the workpiece. The riveting tool is fixedly mounted on the rotating platform, and a plurality of riveting tool annularly evenly distributed arrays are arranged on the rotating platform. The loading and unloading mechanism is used for placing the workpiece on the riveting tool. The problems of low positioning accuracy, low production efficiency and poor safety are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of cylinder assembly, and in particular relates to an automatic riveting device for a thin cylinder end cover and an operating method. Background Art

[0002] With the continuous development of modern industrial technology, cylinders, as important pneumatic actuators, have been widely used in automated production lines, robotics, aerospace, medical equipment, and the automotive industry. Among them, thin cylinders, with their thin bore and compact structure, meet the application scenarios with limited space or space saving requirements, and have become an indispensable part of industrial manufacturing.

[0003] The main components of a thin cylinder include a cylinder body, a front cover, a rear cover, a piston seat and a piston rod fixed on the piston seat; the riveting of the front cover and the rear cover of a thin cylinder is a key link in its manufacturing process; the riveting equipment for the front cover and the rear cover has improved the riveting quality and production efficiency to a certain extent, but the existing end cover riveting equipment still has the following shortcomings and limitations:

[0004] 1. Low positioning accuracy: Traditional equipment usually adopts a simple mechanical positioning method, which is extremely dependent on the operator's proficiency. It is difficult to ensure that the end cover corresponds to the center of the cylinder body, which easily leads to the displacement of the riveting position and affects the sealing of the cylinder.

[0005] 2. Low production efficiency: Traditional equipment mostly adopts a single riveting method. One pressure equipment can only be equipped with a set of single-sided riveting tooling, which can only adapt to one type of cylinder and can only rivet the front cover or rear cover at a time; when it is necessary to rivet the cylinder head at the other end or assemble other types of cylinders, the riveting tooling needs to be replaced, and multiple debugging and calibration are required after replacement, which greatly affects the production efficiency. In addition, the equipment has a low degree of automation and requires manual operations such as picking, placing and positioning of workpieces, which is not only inefficient but also increases labor costs.

[0006] 3. Poor safety: Traditional equipment has certain safety hazards during operation. For example, workpiece picking and placing, frequent replacement of tooling, and equipment debugging all require manual operation, which can easily cause damage to the workpiece or personal injury. Summary of the invention

[0007] In view of the defects in the prior art, the present invention provides an automatic riveting device and an operating method for a thin cylinder end cover, which are used to solve the problem that the riveting process of the end cover is currently performed manually during the installation process of the thin cylinder end cover, which consumes manpower and has low production efficiency.

[0008] In order to achieve the above-mentioned purpose, the present invention provides an automatic riveting device and an operating method for a thin cylinder end cover, comprising: a pressurizing mechanism, a riveting tool and a loading and unloading mechanism, the pressurizing mechanism comprising a first workbench, a rotating platform, a gantry, a first pressurizing assembly and a second pressurizing assembly, the rotating platform is arranged on the first workbench, the gantry and the first workbench are fixedly connected, the first pressurizing mechanism and the second pressurizing mechanism are both fixedly mounted on the gantry; the first pressurizing mechanism is used for positioning and pre-pressing the workpiece, and the second pressurizing mechanism is used for riveting the workpiece; the riveting tool comprises a front end cover riveting tool and a rear end cover riveting tool; a plurality of the front end cover riveting tool and the rear end cover riveting tool are fixedly mounted on the rotating platform and are arranged in a ring-shaped uniform array; the loading and unloading mechanism is used to place the workpiece on the riveting tool.

[0009] Since the first pressurizing assembly and the second pressurizing assembly are provided, the first pressurizing mechanism pre-presses the workpiece so that the end cover and the center of the cylinder body are aligned, and then the second pressurizing assembly performs a second riveting press on the end cover. Through the two riveting presses, the quality of the riveted product is improved. The front cover riveting tooling and the rear cover riveting tooling are switched by the rotating platform, and there is no need to debug again every time the tooling is changed. The production efficiency is improved. Since the loading and unloading mechanism is provided, the relevant workpiece is grabbed by the loading and unloading mechanism and placed on the corresponding tooling. After the riveting is completed, it is taken out, with a high degree of automation, which improves the production efficiency.

[0010] Optionally, the front end cover riveting tooling and the rear end cover riveting tooling both include an upper die tooling, a lower die tooling, a guide column and a return spring; the lower die tooling is fixedly mounted on the rotating platform, two groups of the guide columns and the lower die tooling are fixedly connected, the upper die tooling is slidably arranged on the guide column, a first through hole is opened in the center of the upper die tooling, two groups of the guide columns are distributed on both sides of the first through hole, the return spring is sleeved on the guide column, and the return spring is located between the upper die tooling and the lower die tooling.

[0011] The workpiece is placed between the upper die tooling and the lower die tooling. When the first pressurizing component moves downward, it presses on the upper die tooling. During the downward movement of the upper die tooling, it presses on the cylinder end cover, and can adjust the end cover level and the center correspondence between the cylinder body and the end cover. The second pressurizing component moves downward again, passes through the first through hole and presses on the end cover, and finally completes the riveting of the end cover. The first pressurizing component and the second pressurizing component move upward, and the upper die tooling is reset by the reset spring and detached from the workpiece so that the workpiece can be taken out. The entire riveting process realizes automatic correction of the end cover. And there is no need to perform center correction on the upper die tooling and the lower die tooling before riveting. Improves production efficiency.

[0012] Optionally, the first pressurizing assembly includes two groups of first automatic telescopic rods and a pre-pressing plate, the two groups of the first automatic telescopic rods are fixedly mounted on the gantry, the two groups of the first automatic telescopic rods are arranged in parallel, and the pre-pressing plate is fixedly provided with the movable end of the first automatic telescopic rod; a second through hole is provided at the center of the pre-pressing plate, avoidance holes are provided on both sides of the second through hole, and the distance between the two avoidance holes is equal to the distance between the two groups of guide columns. During the downward movement of the pre-pressing plate, the guide column passes through the avoidance hole, and the pre-pressing plate can be pressed on the upper mold tooling. Two groups of first automatic telescopic rods are provided to ensure the stability of pressing down.

[0013] Optionally, the second pressurizing assembly includes a second automatic telescopic rod and a pressurizing head, the second automatic telescopic rod is fixedly mounted on the gantry; the second automatic telescopic rod is located between two groups of the first automatic telescopic rods and is parallel to the two groups of the first automatic telescopic rods, and the pressurizing head is fixedly arranged at the movable end of the second automatic telescopic rod. The pressurizing head passes through the first through hole and the second through hole during the downward pressing process.

[0014] Optionally, the lower die tooling is provided with a lower imitation-shaped positioning groove and a positioning column, the positioning column is fixedly arranged at the center of the lower imitation-shaped positioning groove, and the upper die tooling is provided with an upper imitation-shaped positioning groove, the lower imitation-shaped positioning groove and the upper imitation-shaped positioning groove are arranged opposite to each other. The upper imitation-shaped positioning groove, the positioning column and the lower imitation-shaped positioning groove are all for better positioning the workpiece to ensure the quality of riveting.

[0015] Optionally, the loading and unloading mechanism includes a second workbench, a support frame, a horizontal guide rail, a slider, a rotating assembly, a third automatic telescopic rod and a clamping assembly; the support frame is fixedly arranged on the second workbench, the horizontal guide rail and the support frame are fixedly connected, the slider and the horizontal guide rail are slidably matched, the rotating assembly is mounted on the slider, the third automatic telescopic rod is fixedly mounted on the rotating assembly, and the clamping assembly is fixedly mounted on the movable end of the third automatic telescopic rod. The rotating assembly includes a fourth automatic telescopic rod and a rotating frame, the rotating frame is rotatably connected to the slider, the cylinder body of the fourth automatic telescopic rod is rotatably connected to the rotating frame, the movable end of the fourth automatic telescopic rod is rotatably connected to the slider, and the third automatic telescopic rod is fixedly mounted on the rotating frame.

[0016] When the fourth automatic telescopic rod is extended, it drives the rotating frame to rotate around the slider, and the clamping assembly on the rotating frame moves to a required position to pick up and place the workpiece. At the same time, the slider slides along the guide rail to expand the operating range of the clamping assembly.

[0017] Optionally, the clamping assembly includes an automatic clamp, a horizontal clamp, a first rotating clamp, a second rotating clamp and a motor; the automatic clamp is installed at the end of the third automatic telescopic rod, the two horizontal clamps are fixedly installed on the claws of the automatic clamp, the horizontal clamp and the claws are perpendicular to each other, the first rotating clamp and the second rotating clamp are respectively rotatably set on the two horizontal clamps, and the motor is fixedly connected to the automatic clamp; the motor and the first rotating clamp are transmission connected, and the first rotating clamp is driven to rotate by the motor.

[0018] Since the automatic clamp is equipped with a horizontal clamp, it can be inserted between the upper mold tooling and the lower mold tooling to pick up and place the workpiece. And since the horizontal clamp is equipped with a first rotating clamp and a second rotating clamp, after the first rotating clamp and the second rotating clamp clamp the workpiece, the motor can drive the workpiece to flip, which is convenient for subsequent assembly and improves assembly efficiency.

[0019] Optionally, it also includes multiple workpiece conveyor belts, which are arranged in parallel. The workpiece conveyor belts are located within the operating range of the loading and unloading mechanism. Different parts and assembled semi-finished products are transported on the workpiece conveyor belts to facilitate the loading and unloading mechanism to grab them.

[0020] The present invention provides an operating method of an automatic riveting device for a thin cylinder end cover, comprising the following steps:

[0021] S1, placing the workpiece in the lower mold contour positioning groove on the lower mold tooling through the loading and unloading mechanism;

[0022] S2, the rotating platform rotates, and moves the workpiece in S1 to the bottom of the pre-pressing plate, and starts the first automatic telescopic rod, which drives the pre-pressing plate to press on the upper die tooling, and the upper die tooling moves downward, and the upper mold positioning groove on the upper die tooling presses on the workpiece;

[0023] S3, starting the second automatic telescopic rod, which drives the pressure head to pass through the first through hole and the second through hole and finally press on the workpiece;

[0024] S4. The first automatic telescopic rod and the second automatic telescopic rod both move upward, and the upper mold tooling moves upward under the action of the return spring and separates from the workpiece.

[0025] Since the front cover riveting tooling and the rear cover riveting tooling are fixedly mounted on the rotating platform, after the front cover riveting is completed, the rotating platform rotates, and the rear cover riveting tooling is transferred to the station of the press mechanism to perform riveting on the rear cover. Moreover, the workpiece can be installed on the riveting tooling while riveting. This improves production efficiency. At the same time, since the first rotating clamping plate and the second rotating clamping plate are provided, the workpiece can be driven to flip. After the front cover riveting is completed, the workpiece is driven to flip, and the rear cover is covered. Then, the workpiece is placed in the rear cover riveting tooling, and S1-S4 is repeated to complete the riveting of the rear cover. This improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 Schematic diagram of the three-dimensional structure of the automatic riveting device for a thin cylinder end cover according to an embodiment of the present invention (I);

[0027] Figure 2 Schematic diagram of the three-dimensional structure of the automatic riveting device for a thin cylinder end cover according to an embodiment of the present invention (II);

[0028] Figure 3 It is a three-dimensional structural schematic diagram of a pressurizing mechanism in an automatic riveting device for a thin cylinder end cover according to an embodiment of the present invention;

[0029] Figure 4 The invention relates to an automatic riveting device for a thin cylinder end cover. Figure 3 An enlarged view of a part A;

[0030] Figure 5 It is a three-dimensional structural schematic diagram of a loading and unloading mechanism in an automatic riveting device for a thin cylinder end cover according to an embodiment of the present invention;

[0031] Figure 6 It is a schematic diagram of the three-dimensional structure of the riveting tool in the automatic riveting equipment for the thin cylinder end cover according to an embodiment of the present invention. DETAILED DESCRIPTION

[0032] The specific embodiments of the present invention will be described in detail below. It should be noted that the embodiments described herein are only for illustration and are not intended to limit the present invention. In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present invention. However, it is obvious to those of ordinary skill in the art that these specific details do not need to be adopted to implement the present invention. In other examples, in order to avoid confusing the present invention, known circuits, software or methods are not specifically described.

[0033] Throughout the specification, references to "one embodiment," "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment of the present invention. Therefore, the phrases "in one embodiment," "in an embodiment," "an example," or "an example" appearing in various places throughout the specification do not necessarily all refer to the same embodiment or example. In addition, particular features, structures, or characteristics may be combined in one or more embodiments or examples in any suitable combination and / or subcombination. In addition, it should be understood by those of ordinary skill in the art that the figures provided herein are for illustrative purposes and that the figures are not necessarily drawn to scale.

[0034] See also Figure 1 - Figure 6 The present invention provides an embodiment of an automatic riveting device and an operating method for a thin cylinder end cover, the device comprising: a pressurizing mechanism 1, a riveting tool 2 and a loading and unloading mechanism, the pressurizing mechanism 1 comprising a first workbench, a rotating platform 4, a gantry 103, a first pressurizing assembly and a second pressurizing assembly, the rotating platform 4 is arranged on the first workbench, the gantry 103 and the first workbench are fixedly connected, the first pressurizing mechanism and the second pressurizing mechanism 1 are both fixedly mounted on the gantry 103; the first pressurizing mechanism 1 is used for positioning and pre-pressing a workpiece, and the second pressurizing mechanism 1 is used for riveting a workpiece 3; the riveting tool 2 comprises a front end cover riveting tool 2 and a rear end cover riveting tool 2; a plurality of the front end cover riveting tools 2 and the rear end cover riveting tools 2 are fixedly mounted on the rotating platform 4, and are arranged in a ring-shaped uniform array; the loading and unloading mechanism is used to place the workpiece 3 on the riveting tool 2.

[0035] Since the first pressurizing assembly and the second pressurizing assembly are provided, the first pressurizing mechanism 1 pre-presses the workpiece 3, adjusts the positions of the end cover and the cylinder body, so that the centers of the end cover and the cylinder body correspond, and then the second pressurizing assembly performs a second riveting on the end cover. The quality of the riveted product is improved through two riveting. The front cover riveting tool 2 and the rear cover riveting tool 2 are switched by the rotating platform 4, which improves the riveting efficiency, and different types of cylinders can be equipped. As long as the corresponding tool is installed on the rotating platform, the tool can be quickly switched, and it is not necessary to debug again every time the tool is changed. The production efficiency is improved.

[0036] Since a loading and unloading mechanism is provided, the relevant workpiece 3 is grabbed by the loading and unloading mechanism and placed on the corresponding tooling. After the riveting is completed, it is taken out. The degree of automation is high, manual operation is reduced, and safety performance and production efficiency are improved.

[0037] In this embodiment, please refer to Figure 1-Figure 6The front end cover riveting tooling 2 and the rear end cover riveting tooling 2 both include an upper die tooling 202, a lower die tooling 201, a guide column 204 and a return spring 203; the lower die tooling 201 is fixedly installed on the rotating platform 4, and the two groups of guide columns 204 are fixedly connected to the lower die tooling 201. The upper die tooling 202 is slidably arranged on the guide column 204. A first through hole 2021 is opened in the center of the upper die tooling 202, and the two groups of guide columns 204 are distributed on both sides of the first through hole 2021. The return spring 203 is sleeved on the guide column 204, and the return spring 203 is located between the upper die tooling 202 and the lower die tooling 201.

[0038] The workpiece 3 is placed between the upper die fixture 202 and the lower die fixture 201. When the first pressurizing assembly moves downward, it presses on the upper die fixture 202. During the downward movement of the upper die fixture 202, it presses on the cylinder end cover, and can adjust the end cover level and the center correspondence between the cylinder body and the end cover. The second pressurizing assembly moves downward again, and passes through the first through hole 2021 to press on the end cover, and finally completes the riveting of the end cover. The first pressurizing assembly and the second pressurizing assembly move upward, and the upper die fixture 202 is reset by the reset spring and separated from the workpiece 3, so that the workpiece 3 can be taken out. The entire riveting process realizes automatic correction of the end cover. And there is no need to perform center correction on the upper die fixture 202 and the lower die fixture 201 before riveting. The production efficiency is improved.

[0039] In this embodiment, please refer to Figure 1-Figure 6 The first pressurizing assembly includes two groups of first automatic telescopic rods 102 and a pre-pressing plate 104. The two groups of the first automatic telescopic rods 102 are fixedly mounted on the gantry 103. The two groups of the first automatic telescopic rods 102 are arranged in parallel. The pre-pressing plate 104 is fixed with the movable end of the first automatic telescopic rod 102. A second through hole 1042 is provided at the center of the pre-pressing plate 104. Avoidance holes 1041 are provided on both sides of the second through hole 1042. The distance between the two avoidance holes 1041 is equal to the distance between the two groups of guide columns 204. During the downward movement of the pre-pressing plate 104, the guide column 204 passes through the avoidance hole 1041, and the pre-pressing plate 104 can be pressed on the upper mold tooling 202. Two groups of first automatic telescopic rods 102 are provided to ensure the stability of pressing down.

[0040] In this embodiment, please refer to Figure 1-Figure 6The second pressurizing assembly includes a second automatic telescopic rod 101 and a pressurizing head 1011. The second automatic telescopic rod 101 is fixedly mounted on the gantry 103. The second automatic telescopic rod 101 is located between two groups of the first automatic telescopic rods 102 and is parallel to the two groups of the first automatic telescopic rods 102. The pressurizing head 1011 is fixedly mounted on the movable end of the second automatic telescopic rod 101. The pressurizing head 1011 passes through the first through hole 2021 and the second through hole 1042 during the downward pressing process.

[0041] In this embodiment, please refer to Figure 1-Figure 6 The lower mold tooling 201 is provided with a lower imitation-shaped positioning groove 2012 and a positioning column 2011, and the positioning column 2011 is fixedly arranged at the center of the lower imitation-shaped positioning groove 2012. The upper mold tooling 202 is provided with an upper imitation-shaped positioning groove, and the lower imitation-shaped positioning groove 2012 and the upper imitation-shaped positioning groove are arranged opposite to each other. The upper imitation-shaped positioning groove, the positioning column 2011 and the lower imitation-shaped positioning groove 2012 are all for better positioning the workpiece 3 to ensure the quality of riveting.

[0042] In this embodiment, please refer to Figure 1-Figure 6 The loading and unloading mechanism includes a second workbench 501, a support frame 502, a horizontal guide rail 503, a slider 506, a rotating assembly, a third automatic telescopic rod 507 and a clamping assembly; the support frame 502 is fixedly arranged on the second workbench 501, the horizontal guide rail 503 and the support frame 502 are fixedly connected, the slider 506 and the horizontal guide rail 503 are slidably matched, the rotating assembly is mounted on the slider 506, the third automatic telescopic rod 507 is fixedly mounted on the rotating assembly, and the clamping assembly is fixedly mounted on the movable end of the third automatic telescopic rod 507. The rotating assembly includes a fourth automatic telescopic rod 504 and a rotating frame 505, the rotating frame 505 is rotatably connected to the slider 506, the cylinder of the fourth automatic telescopic rod 504 is rotatably connected to the rotating frame 505, the movable end of the fourth automatic telescopic rod 504 is rotatably connected to the slider 506, and the third automatic telescopic rod 507 is fixedly mounted on the rotating frame 505.

[0043] When the fourth automatic telescopic rod 504 is extended, it drives the rotating frame 505 to rotate around the slider 506, and the clamping assembly on the rotating frame 505 moves to the required position to pick up and place the workpiece 3. At the same time, the slider 506 slides along the guide rail to expand the operating range of the clamping assembly.

[0044] In this embodiment, please refer to Figure 1-Figure 6The clamping assembly includes an automatic clamp 508, a horizontal clamp plate 510, a first rotating clamp plate 512, a second rotating clamp plate 511 and a motor 513; the automatic clamp 508 is installed at the end of the third automatic telescopic rod 507, and the two horizontal clamp plates 510 are fixedly installed on the claw fingers 509 of the automatic clamp 508, the horizontal clamp plates 510 and the claw fingers 509 are perpendicular to each other, the first rotating clamp plate 512 and the second rotating clamp plate 511 are respectively rotatably arranged on the two horizontal clamp plates 510, and the motor 513 is fixedly connected to the automatic clamp 508; the motor 513 is in transmission connection with the first rotating clamp plate 512, and the first rotating clamp plate 512 is driven to rotate by the motor 513.

[0045] Since the automatic clamping jaw 508 is provided with a horizontal clamping plate 510, it can be extended between the upper mold fixture 202 and the lower mold fixture 201 to pick up and place the workpiece 3. And since the horizontal clamping plate 510 is provided with a first rotating clamping plate 512 and a second rotating clamping plate 511, after the first rotating clamping plate 512 and the second rotating clamping plate 511 clamp the workpiece 3, the motor 513 can drive the workpiece 3 to flip, which is convenient for subsequent assembly and improves assembly efficiency.

[0046] In this embodiment, please refer to Figure 1-Figure 6 , and also includes a plurality of workpiece conveyor belts 6, which are arranged in parallel. The workpiece 3 conveyor belt is located within the operating range of the loading and unloading mechanism. Different parts and assembled semi-finished products are transmitted on the workpiece conveyor belt 6, which is convenient for the loading and unloading mechanism to grab.

[0047] The present invention provides an operating method of an automatic riveting device for a thin cylinder end cover, comprising the following steps:

[0048] S1, placing the workpiece 3 in the lower mold contour positioning groove 2012 on the lower mold tooling 201 through the loading and unloading mechanism;

[0049] S2, the rotating platform 4 rotates, and moves the workpiece 3 in S1 to the bottom of the pre-pressing plate 104, and starts the first automatic telescopic rod 102, which drives the pre-pressing plate 104 to press on the upper die tooling 202, and the upper die tooling 202 moves downward, and the upper imitation contour positioning groove on the upper die tooling 202 presses on the workpiece 3;

[0050] S3, start the second automatic telescopic rod 101, which drives the pressure head 1011 to pass through the first through hole 2021 and the second through hole 1042 and finally press on the workpiece 3;

[0051] S4. The first automatic telescopic rod 102 and the second automatic telescopic rod both move upward, and the upper mold tooling 202 moves upward under the action of the return spring and separates from the workpiece 3.

[0052] Since the front end cover riveting tool 2 and the rear end cover riveting tool 2 are fixedly mounted on the rotating platform 4, after the front end cover is riveted, the rotating platform 4 rotates to transfer the rear end cover riveting tool 2 to the station of the pressurizing mechanism 1 to rivet the rear end cover. Moreover, the workpiece 3 can be installed on the riveting tool 2 while riveting. The production efficiency is improved. At the same time, since the first rotating clamp 512 and the second rotating clamp 511 are provided, the workpiece 3 can be driven to flip over. After the front end cover is riveted, the workpiece 3 is driven to flip over and the rear cover is covered. Then, the workpiece 3 is placed in the rear end cover riveting tool 2, and S1-S4 are repeated to complete the riveting of the rear end cover, thereby improving the production efficiency.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. An automatic riveting device for a thin cylinder end cover, characterized in that: include: Pressurizing mechanism, The pressurizing mechanism comprises a first workbench, a rotating platform, a gantry, a first pressurizing assembly and a second pressurizing assembly, wherein the rotating platform is arranged on the first workbench, the gantry is fixedly connected to the first workbench, and the first pressurizing assembly and the second pressurizing assembly are both fixedly mounted on the gantry; the first pressurizing assembly is used for positioning and pre-pressing the workpiece, and the second pressurizing assembly is used for riveting the workpiece; Riveting tooling, The riveting tooling includes a front cover riveting tooling and a rear cover riveting tooling; a plurality of the front cover riveting tooling and the rear cover riveting tooling are fixedly mounted on the rotating platform and are arranged in a ring-shaped uniform array; Loading and unloading mechanism, The loading and unloading mechanism is used to place the workpiece on the riveting tool; The front cover riveting tooling and the rear cover riveting tooling both include an upper die tooling, a lower die tooling, a guide column and a return spring; The lower die tooling is fixedly mounted on the rotating platform, the two groups of guide posts are fixedly connected to the lower die tooling, the upper die tooling is slidably arranged on the guide posts, a first through hole is opened at the center of the upper die tooling, the two groups of guide posts are distributed on both sides of the first through hole, the reset spring is sleeved on the guide posts, and the reset spring is located between the upper die tooling and the lower die tooling; The first pressurizing assembly includes two groups of first automatic telescopic rods and a pre-pressing plate, the two groups of the first automatic telescopic rods are fixedly mounted on the gantry, the two groups of the first automatic telescopic rods are arranged in parallel, and the pre-pressing plate is fixedly provided with the movable ends of the first automatic telescopic rods; a second through hole is provided at the center of the pre-pressing plate, avoidance holes are provided on both sides of the second through hole, and the distance between the two avoidance holes is equal to the distance between the two groups of guide columns; The second pressurizing assembly includes a second automatic telescopic rod and a pressurizing head, wherein the second automatic telescopic rod is fixedly mounted on the gantry; the second automatic telescopic rod is located between the two groups of the first automatic telescopic rods and is parallel to the two groups of the first automatic telescopic rods, and the pressurizing head is fixedly arranged at the movable end of the second automatic telescopic rod; The lower mold tooling is provided with a lower imitation shape positioning groove and a positioning column, the positioning column is fixedly arranged at the center of the lower imitation shape positioning groove, and the upper mold tooling is provided with an upper imitation shape positioning groove, the lower imitation shape positioning groove and the upper imitation shape positioning groove are arranged oppositely; The loading and unloading mechanism includes a second workbench, a support frame, a horizontal guide rail, a slide block, a rotating assembly, a third automatic telescopic rod and a clamping assembly; The support frame is fixedly mounted on the second workbench, the horizontal guide rail is fixedly connected to the support frame, the slider is slidably matched with the horizontal guide rail, the rotating assembly is mounted on the slider, the third automatic telescopic rod is fixedly mounted on the rotating assembly, and the clamping assembly is fixedly mounted on the movable end of the third automatic telescopic rod; The rotating assembly includes a fourth automatic telescopic rod and a rotating frame, the rotating frame is rotatably connected to the slider, the cylinder body of the fourth automatic telescopic rod is rotatably connected to the rotating frame, the movable end of the fourth automatic telescopic rod is rotatably connected to the slider, and the third automatic telescopic rod is fixedly installed on the rotating frame.

2. The automatic riveting equipment for thin cylinder end cover according to claim 1 is characterized in that: The clamping assembly includes an automatic clamp, a horizontal clamp, a first rotating clamp, a second rotating clamp and a motor; the automatic clamp is installed at the end of the third automatic telescopic rod, the two horizontal clamps are fixedly installed on the claws of the automatic clamp, the horizontal clamp and the claws are perpendicular to each other, the first rotating clamp and the second rotating clamp are respectively rotatably arranged on the two horizontal clamps, and the motor is fixedly connected to the automatic clamp; the motor is transmission-connected to the first rotating clamp, and the first rotating clamp is driven to rotate by the motor.

3. The automatic riveting equipment for thin cylinder end cover according to claim 1 is characterized in that: It also includes a plurality of workpiece conveyor belts, which are arranged in parallel and are located within the operating range of the loading and unloading mechanism.

4. An operating method of an automatic riveting device for a thin cylinder end cover, the operating method being applicable to an automatic riveting device for a thin cylinder end cover as claimed in any one of claims 1 to 3, characterized in that: The steps include: S1, placing the workpiece in the lower mold contour positioning groove on the lower mold tooling through the loading and unloading mechanism; S2, the rotating platform rotates, and moves the workpiece in S1 to the bottom of the pre-pressing plate, and starts the first automatic telescopic rod, which drives the pre-pressing plate to press on the upper die tooling, and the upper die tooling moves downward, and the upper mold positioning groove on the upper die tooling presses on the workpiece; S3, starting the second automatic telescopic rod, which drives the pressure head to pass through the first through hole and the second through hole and finally press on the workpiece; S4. The first automatic telescopic rod and the second automatic telescopic rod both move upward, and the upper mold tooling moves upward under the action of the return spring and separates from the workpiece.

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