Servo roll riveting machine

Abstract

The servo roll riveting machine comprises a machine base, a rotating assembly and a die are installed on the machine base, and the die is located below the rotating assembly; a roll riveting head is mounted on the rotating assembly, and the rotating assembly is used for driving the roll riveting head to rotate synchronously; a through hole is formed in the rotating assembly, a shaft rod is installed in the through hole, an installation hole aligned with the through hole is formed in the roll riveting head, a pressing rod is installed on the roll riveting head, the pressing rod penetrates through the installation hole to be fixedly connected with the shaft rod, and the pressing rod is used for pressing a die. A plurality of synchronous wheels are rotationally installed on the side portion of the roll riveting head and used for being matched with a die to conduct rolling riveting on products. The device has the beneficial effects that a plurality of synchronous wheels are matched with the die to extrude and rivet a product, so that uniform deformation of the riveting surface of the product can be ensured; the roll riveting head and the pressing rod are both controlled by the servo motor, so that the response speed of the machine is further improved; the device has the advantages of high applicability, high efficiency, good riveting quality and the like.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of roll riveting machine, in particular to a servo roll riveting machine. BACKGROUND

[0002] The roll riveting machine is also called a closing type riveting machine, which is mainly applied in various mechanical manufacturing fields. The roll riveting machine extrudes and rivets the connection of a product through multiple synchronous wheels to form an integrated structure. Compared with the traditional riveting machine, the riveting process of the roll riveting machine is more stable and has less noise, which can make the riveting surface of the product deform uniformly.

[0003] At present, the structure of the roll riveting machine is mostly a symmetrical structure of multiple synchronous wheels. The product is placed between two synchronous wheels, and the synchronous wheels are used to extrude and rivet the riveting surface. However, due to the small gap between the synchronous wheels, when a product with a large volume is encountered, the space may not be enough. In order to improve the versatility of the roll riveting machine, some roll riveting machines use a synchronous wheel and a die to extrude and rivet. However, since the die and the synchronous wheel are in a dynamic and static state, when the synchronous wheel rolls above the die, the die is prone to vibrate or tilt, which reduces the riveting quality of the product. CONTENT OF THE INVENTION

[0004] One of the purposes of the present application is to provide a servo roll riveting machine that can solve at least one of the defects in the background art.

[0005] To achieve the above-mentioned at least one purpose, the technical solution adopted by the present application is as follows: a servo roll riveting machine, comprising a machine base, a rotating assembly and a die are installed on the machine base, and the die is located below the rotating assembly; a roll riveting head is installed on the rotating assembly, and the rotating assembly is used to drive the roll riveting head to rotate synchronously; a through hole is provided on the rotating assembly, a shaft is installed in the through hole, an installation hole is provided on the roll riveting head and aligned with the through hole, a pressing rod is installed on the roll riveting head, the pressing rod is fixedly connected with the shaft through the installation hole, and the pressing rod is used to press the product; a plurality of synchronous wheels are rotatably installed on the side of the roll riveting head, and the synchronous wheels are used to cooperate with the die to roll and rivet the product. Through the above-mentioned arrangement, when the product is placed at the corresponding position on the die, the roll riveting head moves downward and extrudes the product to be riveted through the cooperation of the synchronous wheels and the die, and the pressing rod can fix the product on the die to avoid the product from deviating.

[0006] Preferably, the number of synchronous wheels is three, and the plurality of synchronous wheels are evenly distributed along the circumferential side of the roll riveting head. In this way, the riveting efficiency of the machine can be further improved.

[0007] Preferably, the mold is provided with a protrusion, the synchronous wheel is provided with an annular groove, and the outer edge of the protrusion is used to extend into the annular groove. In this way, the riveting surface of the product is riveted through the protrusion and the annular groove, so that the riveting surface presents a more rounded R angle.

[0008] Preferably, the mold is further provided with a recess coaxial with the pressing rod. In this way, the pressing rod can be extended into the recess to extrude the product more closely, so as to avoid the product from tilting due to uneven stress.

[0009] Preferably, the base is longitudinally provided with a slide rail parallel to the shaft, the slide rail is slidably installed with a sliding block, the sliding block is fixedly installed with a mounting portion, the mounting portion is installed with a bearing seat, and part of the rotating assembly is inserted with the bearing seat; the rotating assembly is provided with a first limiting block and a second limiting block, and the bearing seat is located between the first limiting block and the second limiting block. In this way, the rotating assembly can be axially limited by the first limiting block and the second limiting block to avoid falling off the bearing seat, and the bearing seat can also protect the rotating assembly.

[0010] Preferably, a plurality of first bearings are installed in the bearing seat, and the rotating assembly passes through the first bearings. In this way, the rotating assembly can be radially limited by the plurality of first bearings to avoid deflection during rotation.

[0011] Preferably, the mounting portion is installed with a first servo motor and a driving assembly, the driving assembly includes a first turntable, a second turntable and a belt, the first turntable and the second turntable are synchronously rotated by the belt, the first servo motor is used to drive the first turntable to rotate, and the second turntable is fixedly connected with the rotating assembly. In this way, the first servo motor can be used to drive the first turntable to rotate, and then the second turntable can be driven by the belt to drive the rotating assembly to rotate to rivet the product.

[0012] Preferably, the mounting portion is further installed with a connecting block, the base is installed with a second servo motor, the connecting block is fixedly connected with a moving rod of the second servo motor, and the second servo motor drives the sliding block to move along the slide rail through the moving rod. In this way, the user can drive the roll riveting head to approach or move away from the mold through the second servo motor.

[0013] Preferably, the rotating assembly is internally installed with a second bearing for limiting the shaft. In this way, the shaft can be limited and installed in the rotating assembly by the second bearing, so that the shaft center can axially move with the rotating assembly, but not rotate with the rotating assembly.

[0014] The upper part of the base is fixedly provided with a speed reducer connected with the shaft rod, the speed reducer is connected with the shaft rod, and the speed reducer is used for driving the shaft rod to drive the pressing rod to press or move away from the product.

[0015] Compared with the prior art, the application has the beneficial effects that:

[0016] The utility model discloses a plurality of synchronous wheels cooperate mould to product extrusion riveting, can change different types of synchronous wheel according to actual demand, ensure that the device can adapt to different types of product, and the rolling extrusion of multiple synchronous wheels can ensure that the riveting surface of product is deformed uniformly.

[0017] The pressing rod installed on the roll riveting head can press the product close to the mould at the same time, which avoids the product from being inclined in the rolling process of the synchronous wheel, and the initial position of the roll riveting head can be limited by the shaft rod and the second servo motor. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the overall structure schematic diagram of servo roll riveting machine in the application.

[0019] Figure 2 It is the structure schematic diagram of base in the application.

[0020] Figure 3 It is Figure 2 The enlarged structure schematic diagram of partial A in the application.

[0021] Figure 4 It is the partial cross section structure schematic diagram of servo roll riveting machine in the application.

[0022] Figure 5 It is Figure 4 The enlarged structure schematic diagram of partial B in the application.

[0023] Figure 6 It is Figure 4 The enlarged structure schematic diagram of partial C in the application.

[0024] Figure 7 It is the installation schematic diagram of slider and slide rail in the application.

[0025] In the figure: 1, base; 11, slide rail; 12, sliding block; 100, shaft; 2, rotating assembly; 21, first limiting block; 22, second limiting block; 23, second bearing; 200, first servo motor; 201, first rotating disc; 202, second rotating disc; 203, belt; 3, roll rivet head; 31, synchronous wheel; 32, pressing rod; 300, speed reducer; 310, annular groove; 4, mold; 41, protruding part; 42, recessed part; 5, mounting part; 51, bearing seat; 510, first bearing; 6, second servo motor; 61, moving rod; 62, connecting block. DETAILED DESCRIPTION

[0026] Hereinafter, the present application will be further described in conjunction with specific embodiments, and it should be noted that the following described embodiments between or between technical features can be combined to form new embodiments without conflict.

[0027] In the description of the present application, it should be noted that for orientation words, such as the terms "center", "transverse", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. The orientation and positional relationship shown in the drawing is based on the orientation or positional relationship shown in the drawing, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and cannot be understood as limiting the specific protection scope of the present application.

[0028] It should be noted that the terms "first", "second" and the like in the specification and claims of the present application are used to distinguish similar objects, and do not necessarily have to describe a specific order or sequence.

[0029] The terms "include" and "have" and any variations thereof in the specification and claims of the present application are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or units does not have to be limited to those clearly listed, but can include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0030] One aspect of the present application provides a servo roll riveting machine, such as Figures 1-5As shown in the drawings, one preferred embodiment includes a base 1, a rotating assembly 2 and a die 4 mounted on the base 1, the die 4 is below the rotating assembly 2, a riveting head 3 is mounted on the rotating assembly 2 near the die 4, and the rotating assembly 2 can drive the riveting head 3 to rotate synchronously. A plurality of synchronous wheels 31 are rotatably mounted on the side of the riveting head 3, and the riveting surface of the product can be riveted by the rolling extrusion of the plurality of rollers.

[0031] As can be understood, the synchronous wheels 31 and the die 4 can extrude and cooperate to make the deformation of the riveting surface of the product more uniform, which is beneficial to improve the riveting quality of the product.

[0032] Further, as shown in Figure 4 and Figure 5 , a through hole is arranged on the rotating assembly 2, a shaft 100 is inserted into the through hole, and a mounting hole is arranged on the riveting head 3 and aligned with the through hole. In order to further improve the riveting stability of the device, a pressing rod 32 is mounted on the riveting head 3, the pressing rod 32 is fixedly connected with the shaft 100 through the mounting hole, and when the riveting head 3 and the die 4 are extruded and cooperated, the pressing rod 32 can press the product to avoid the product from deviating under the rotation of the riveting head 3.

[0033] In this embodiment, as shown in Figure 2 and Figure 3 , the number of synchronous wheels 31 is three, and the three synchronous wheels 31 are arranged along the circumferential side of the riveting head 3. The rolling cooperation of the three rollers can further improve the working efficiency of the device. When the riveting head 3 rotates, the three synchronous wheels 31 can form stable fulcrums, so that the product and the riveting surface are uniformly stressed, and the product will not deviate during the riveting process.

[0034] Specifically, as shown in Figure 3 , a protruding portion 41 is arranged on the die 4, and an annular groove 310 is arranged on the synchronous wheel 31 for cooperating with the protruding portion 41. When the device operates, the riveting head 3 drives the synchronous wheel 31 to move downward, so that the outer edge of the protruding portion 41 extends into the annular groove 310. At this time, the riveting surface of the product is located between the annular groove 310 and the protruding portion 41, and the riveting surface of the product is deformed along the inner contour of the annular groove 310 through the extrusion and cooperation of the annular groove 310 and the protruding portion 41, and then presents a more rounded R angle.

[0035] Further, as shown in Figure 3 , the die 4 further comprises a recess 42 coaxial with the pressing rod 32, and when the device operates, the pressing rod 32 extends into the recess 42 to extrude the product more closely, which avoids the product from tilting under the extrusion of the synchronous wheel 31, thereby improving the stability of the device operation.

[0036] In this embodiment, as shown in Figure 6 andFigure 7 As shown in the drawings, the slide rail 11 parallel to the shaft 100 is longitudinally arranged on the base 1, the slide block 12 is slidingly installed on the slide rail 11, the mounting portion 5 is fixedly installed on the slide block 12, the bearing seat 51 is installed on the mounting seat, and the rotating assembly 2 is inserted with the bearing seat 51. In order to avoid the rotating assembly 2 from being separated from the bearing seat 51, the first limiting block 21 is arranged on the lower end surface of the rotating assembly 2 close to the bearing seat 51, and the second limiting block 22 is installed on the upper end surface of the rotating assembly 2 close to the bearing seat 51. The specific installation mode of the rotating assembly 2 and the bearing seat 51 is as follows: after the bearing seat 51 is inserted with the rotating assembly 2, the lower end surface of the bearing seat 51 abuts against the first limiting block 21, at this time, the second limiting block 22 is installed on the rotating assembly 2 and abuts against the upper end surface of the bearing seat 51, so that the axial limiting of the rotating assembly 2 is realized.

[0037] It should be known that when the device is running, the rotating assembly 2 and the bearing seat 51 will rotate relative to each other, but if the rotating assembly 2 is directly inserted with the bearing seat 51, long-term use may cause the rotating assembly 2 to be worn, thereby affecting the normal operation of the device.

[0038] In order to further reduce the wear of the rotating assembly 2, in some embodiments of the present application, as shown in the drawings, Figure 6 The first bearing 510 is installed in the bearing seat 51, the rotating assembly 2 passes through the first bearing 510, the rotating assembly 2 is radially limited by the first bearing 510, and the rotating shaft is prevented from directly contacting the bearing seat 51. At the same time, the outermost first bearing 510 can be limited by the first limiting block 21 and the second limiting block 22.

[0039] In the embodiment, as shown in the drawings, Figure 4 The first servo motor 200 and the driving assembly are installed on the mounting portion 5, the driving assembly includes the first rotating disc 201, the second rotating disc 202 and the belt 203. The first rotating disc 201 and the second rotating disc 202 are synchronously rotated by the belt 203, the first servo motor 200 is connected with the first rotating disc 201 and is used to drive the first rotating disc 201 to move, the second rotating disc 202 is fixedly connected with the rotating assembly 2 and is used to drive the rotating assembly 2 to synchronously rotate, thereby enabling the roll rivet head 3 to rivet on the die plate.

[0040] It should be noted that the sizes of the first rotating disc 201 and the second rotating disc 202 can be adjusted according to actual conditions, and in the embodiment, the size of the first rotating disc 201 is greater than that of the second rotating disc 202, so that the rotating assembly 2 can work at a higher rotating speed.

[0041] Further, in order to enable the roll rivet head 3 to move up and down, in some embodiments of the present application, as shown in the drawings, Figure 7As shown, the mounting portion 5 is further provided with a connecting block 62, and the base 1 is provided with a second servo motor 6 for driving the connecting block 62 to move, and the connecting block 62 is fixedly connected with a moving rod 61 of the second servo motor 6. When the second servo motor 6 is started, the moving rod 61 can be extended or retracted to drive the sliding block 12 to move on the slide rail 11, thereby providing power for the up-down movement of the roll rivet head 3, and driving the roll rivet head 3 to approach or move away from the mold 4.

[0042] In the embodiment, as shown in Figure 5 The second bearing 23 is arranged in the interior of the rotating assembly 2 for limiting the shaft 100, so as to ensure that the shaft 100 can only move up and down with the rotating assembly 2. When the rotating assembly 2 rotates, the second bearing 23 can ensure that the shaft 100 does not rotate with the rotating assembly 2.

[0043] Further, as shown in Figure 4 and Figure 7 The upper portion of the base 1 is fixedly provided with a speed reducer 300 connected with the shaft 100, and the speed reducer 300 is used for driving the shaft 100 to drive the pressing rod 32 to press or move away from the product. When the machine is started, the speed reducer 300 drives the pressing rod 32 to press the product to adhere to the mold 4, so as to avoid the position of the product from being deviated.

[0044] The above describes the basic principles, main features and advantages of the present application. It should be understood by those skilled in the art that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. A servo roll riveter comprising a machine base (1), characterized in that, The machine base (1) is provided with a rotating assembly (2) and a mold (4), the mold (4) is below the rotating assembly (2); the rotating assembly (2) is provided with a roll riveting head (3), the rotating assembly (2) is used for driving the roll riveting head (3) to rotate synchronously; the rotating assembly (2) is provided with a through hole, the shaft rod (100) is installed in the through hole, the roll riveting head (3) is provided with a mounting hole aligned with the through hole, the roll riveting head (3) is provided with a pressing rod (32), the pressing rod (32) is fixedly connected with the shaft rod (100) through the mounting hole, and the pressing rod (32) is used for pressing the product; a plurality of synchronous wheels (31) are rotatably installed on the side of the roll riveting head (3), and the synchronous wheels (31) are used for cooperating with the mold (4) to roll and rivet the product.

2. The servo roll riveter of claim 1 wherein, The number of the synchronous wheels (31) is three, and a plurality of the synchronous wheels (31) are evenly arranged along the circumferential side of the roll riveting head (3).

3. The servo roll riveter of claim 1 wherein, The mold (4) is provided with a protruding portion (41), and the synchronous wheel (31) is provided with an annular groove (310), and the outer edge of the protruding portion (41) is used for extending into the annular groove (310).

4. The servo roll riveter of claim 3 wherein, The mold (4) is also provided with a recessed portion (42), and the recessed portion (42) is coaxial with the pressing rod (32).

5. The servo roll riveter of claim 1 wherein, The machine base (1) is longitudinally provided with a slide rail (11) parallel to the shaft rod (100), the slide rail (11) is slidably provided with a sliding block (12), the sliding block (12) is fixedly provided with a mounting portion (5), the mounting portion (5) is provided with a bearing seat (51), and part of the rotating assembly (2) is inserted into the bearing seat (51); the rotating assembly (2) is provided with a first limiting block (21) and a second limiting block (22), and the bearing seat (51) is located between the first limiting block (21) and the second limiting block (22).

6. The servo roll riveter of claim 5 wherein, A plurality of first bearings (510) are installed in the bearing seat (51), and the rotating assembly (2) passes through the first bearings (510).

7. The servo roll riveter of claim 5 wherein, The mounting portion (5) is provided with a first servo motor (200) and a driving assembly, the driving assembly comprises a first rotating disc (201), a second rotating disc (202) and a belt (203), the first rotating disc (201) and the second rotating disc (202) rotate synchronously through the belt (203), the first servo motor (200) is used for driving the first rotating disc (201) to rotate, and the second rotating disc (202) is fixedly connected with the rotating assembly (2).

8. The servo roll riveter of claim 5 wherein, The mounting portion (5) is also provided with a connecting block (62), the machine base (1) is provided with a second servo motor (6), the connecting block (62) is fixedly connected with a moving rod (61) of the second servo motor (6), and the second servo motor (6) drives the sliding block (12) to move along the slide rail (11) through the moving rod (61).

9. The servo roll riveter of claim 1 wherein, The rotating assembly (2) is internally provided with a second bearing (23) for limiting the shaft rod (100).

10. The servo roll riveter of claim 9 wherein, The upper part of the frame (1) is fixedly provided with a speed reducer (300) connected with the shaft rod (100), the speed reducer (300) is connected with the shaft rod (100), and the speed reducer (300) is used for driving the shaft rod (100) to drive the pressing rod (32) to extrude or move away from the product.

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