Automatic rotating shaft rivet assembling device

Abstract

The utility model discloses an automatic rotating shaft rivet assembling device which comprises an assembling machine box and a screw fixing bottom plate arranged on the front side of the center of the outer wall of the top end of the assembling machine box, the screw fixing bottom plate is fixedly connected with the assembling machine box through a plurality of screws, and a press-fit assembling block is welded to the top end of the screw fixing bottom plate. The press-fit assembly block is a metal block with a solid interior, a novel bottom lifting device is additionally arranged at the top end of the assembly case, when the bottom of a riveting piece placed on the press-fit assembly block is in a special shape or the gravity center deviates towards the outer side, the bottom lifting device can be placed at the bottom of the riveting piece at the moment, the device is well adjusted, and the riveting piece can be fixed. The bottom lifting device can play a lifting role at the bottom of the riveting piece, so that stable lifting force can be provided for the riveting piece, it is guaranteed that the riveting piece cannot incline or be unstable due to the shape or the gravity center of the riveting piece in the assembling process, and therefore the assembling accuracy and reliability are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical fields related to mechanical manufacturing, concretely relates to a kind of automatic assembly device of pivot rivet. BACKGROUND

[0002] With the continuous development of industrial production, automatic assembly technology has been widely applied in various fields. In the assembly process of pivot rivet, the traditional assembly method often relies on manual operation, which is low in efficiency and difficult to ensure accuracy. In order to improve production efficiency and assembly quality, pivot rivet automatic assembly device emerges as the times require;

[0003] However, in the existing pivot rivet automatic assembly device, when the bottom of the riveting piece placed on the pressure assembly block is of irregular shape or the center of gravity is offset to the outside, the problem of riveting piece tilting is likely to occur, which leads to riveting failure. This is mainly because the existing assembly device lacks effective support and fixing measures when facing riveting pieces of irregular shape or with offset center of gravity. In actual production, the shape and center of gravity distribution of riveting pieces are diverse, and traditional assembly devices are difficult to adapt to these complex situations. If the riveting piece tilts during assembly, it will not only affect the assembly accuracy of the rivet, but also may damage the riveting piece and the assembly equipment, increasing production cost and maintenance cost;

[0004] Therefore, in order to solve the problem of riveting piece tilting when the bottom of the riveting piece placed on the pressure assembly block is of irregular shape or the center of gravity is offset to the outside, and improve the success rate and quality of pivot rivet automatic assembly, a new type of pivot rivet automatic assembly device is needed, which should have the function of effectively supporting and fixing riveting pieces of irregular shape and with offset center of gravity. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at providing a kind of pivot rivet automatic assembly device to solve the problem of riveting piece tilting when the bottom of the riveting piece placed on the pressure assembly block is of irregular shape or the center of gravity is offset to the outside, which leads to riveting failure. This is mainly because the existing assembly device lacks effective support and fixing measures when facing riveting pieces of irregular shape or with offset center of gravity.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a kind of pivot rivet automatic assembly device, including assembly machine case and the screw fixed bottom plate of setting at the center of outer wall front side of assembly machine case top, the screw fixed bottom plate is fixedly connected with assembly machine case by multiple screws, the screw fixed bottom plate top is welded with pressure assembly block, the pressure assembly block is the metal block of solid inside, the pressure assembly block top center is provided with the pivot rivet supporting groove of downward recess, pivot rivet bottom end can be directly placed in pivot rivet supporting groove, the assembly machine case top is also provided with bottom lifting device.

[0007] Preferably, the bottom lifting device comprises a cuboid metal block, a magnetic bottom plate, a circular groove and a circular fixed magnet, the top outer wall of the assembly case is equidistantly covered with a plurality of downward recessed circular grooves, a plurality of the circular grooves are internally fixed with circular fixed magnets, the plurality of circular fixed magnets are kept on the same horizontal plane with the top outer wall of the assembly case, two magnetic bottom plates are placed at the top of the assembly case, the top of the two magnetic bottom plates is provided with a cuboid metal block, and the magnetic bottom plate can be magnetically adsorbed by the circular fixed magnet.

[0008] Preferably, the bottom lifting device further comprises a circular lifting block, an adjusting screw hole and a supporting screw rod, the center and the inside of the front and back of the cuboid metal block are provided with adjusting screw holes, the supporting screw rod is threadedly inserted into the plurality of adjusting screw holes, and the top of the supporting screw rod is provided with a circular lifting block.

[0009] Preferably, the supporting screw rod can be up and down movable in the adjusting screw hole through thread action by clockwise and counterclockwise rotation, the top outer wall of the circular lifting block is smooth without burrs, and the sum of the thicknesses of the cuboid metal block, the magnetic bottom plate and the circular lifting block is less than the sum of the thicknesses of the screw fixing bottom plate and the compression assembly block.

[0010] Preferably, the assembly case is provided with a placing foot at each of the four corners of the bottom end, a maintenance window is reserved in the front end of the assembly case, a convenient maintenance door is arranged in the maintenance window, and the convenient maintenance door is fixedly connected with the assembly case through a plurality of embedded screws.

[0011] Preferably, the compression assembly block is provided with a stand on the rear side, a metal bottom plate is welded at the bottom end of the stand, the metal bottom plate is fixed at the top outer wall of the assembly case through a plurality of screws, and a top seat is arranged at the top front end of the stand.

[0012] Preferably, the top seat is provided with a compression assembly cylinder at the front end, the compression assembly cylinder is internally provided with a cylinder plunger, the cylinder plunger is fixedly provided with an assembly cylinder shaft at the bottom end, and the assembly cylinder shaft is exposed at the bottom end of the compression assembly cylinder.

[0013] Preferably, the bottom end of the assembly cylinder shaft is externally provided with a screw fixing sleeve, the screw fixing sleeve is fixedly connected with the assembly cylinder shaft through a plurality of screws, the screw fixing sleeve is provided with a compression assembly pressure head at the bottom end, and the compression assembly pressure head is located directly above the compression assembly block.

[0014] Compared with the prior art, the automatic shaft rivet assembly device has the following beneficial effects:

[0015] The utility model discloses a new bottom lifting device is added to the top of assembly case, when the riveting pressure spare bottom placed on the compression assembly block is special-shaped or the gravity center is inclined to the outside, now can be the bottom lifting device to be placed in the riveting pressure spare bottom, and the device is adjusted, so that the bottom lifting device can produce the lifting effect at the riveting pressure spare bottom, can provide stable lifting force for the riveting pressure spare, ensure that the riveting pressure spare does not incline or be unstable because of own shape or gravity center problem in the assembly process, thereby improve the accuracy and reliability of assembly, the cuboid metal block center and the inside of two sides before and after in bottom lifting device all are provided with adjusting screw hole, and the supporting screw rod is screwed and connected in a plurality of adjusting screw holes, and the round lifting block is arranged at the top of a plurality of supporting screw rods, and this design makes lifting height can be flexibly adjusted according to different riveting pressure spare demand, whether it is the riveting pressure spare of small height or the higher special-shaped spare, can find suitable lifting height through the position of supporting screw rod in adjusting screw hole, greatly improve the versatility and adaptability of the device. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a side view three-dimensional structure schematic diagram of a rotating shaft rivet automatic assembly device of the utility model.

[0017] Figure 2 It is a front view plane structure schematic diagram of a rotating shaft rivet automatic assembly device of the utility model.

[0018] Figure 3 It is a right view plane structure schematic diagram of a rotating shaft rivet automatic assembly device of the utility model.

[0019] Figure 4 It is the external three-dimensional structure schematic diagram of the bottom lifting device of the utility model.

[0020] Figure 5 It is the section view three-dimensional structure schematic diagram of the bottom lifting device of the utility model.

[0021] In the drawing: 1, place foot; 2, assembly case; 3, convenient maintenance door; 4, bottom lifting device; 5, screw fixed bottom plate; 6, compression assembly block; 7, compression assembly cylinder; 8, stand; 9, top seat; 10, screw fixing sleeve; 11, assembly cylinder shaft; 12, compression assembly pressure head; 13, cuboid metal block; 14, magnetic bottom plate; 15, round lifting block; 16, round recess; 17, round fixed magnet; 18, adjusting screw hole; 19, supporting screw rod. DETAILED DESCRIPTION

[0022] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described, obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0023] The utility model provides a kind of shaft rivet automatic assembly device as shown in Figures 1-5 It includes assembly case 2 and the screw fixing base plate 5 of being set in the front side of the center of outer wall top end of assembly case 2, the screw fixing base plate 5 is fixedly connected with assembly case 2 by multiple screws, the top end of screw fixing base plate 5 is welded with compression assembly block 6, and the compression assembly block 6 is solid metal block inside, the screw fixing base plate 5 is fixedly connected with assembly case 2 by multiple screws, to ensure the stability of compression assembly block 6, and the compression assembly block 6 is solid metal block inside, with enough strength and weight, can withstand the pressure in compression assembly process, and the top end center of compression assembly block 6 is provided with the downward recessed shaft rivet supporting groove, and the bottom end of shaft rivet can be directly placed in shaft rivet supporting groove, and the design of shaft rivet supporting groove ensures the position accuracy of rivet in horizontal direction, and the bottom end of rivet is placed in supporting groove, to limit the transverse movement of rivet, so that it always remains in correct position in compression process, and the bottom end of assembly case 2 is provided with the placing foot 1 in four corners, the placing foot 1 is used as the basic frame of the whole device, to provide installation and support for other components, and the placing foot 1 in four corners of the bottom end of assembly case 2 ensures the stability of the device, so that it does not shake in working process, and the bottom end of assembly case 2 is provided with maintenance window, and the convenient maintenance door 3 is arranged in maintenance window, and the convenient maintenance door 3 is fixedly connected with assembly case 2 by multiple embedded screws, when the device fails, maintenance personnel can check and maintain the components inside assembly case 2 by opening convenient maintenance door 3.

[0024] As shown in Figure 1 , Figure 2 and Figure 3As shown, the rear side of the press-fitting block 6 is provided with a stand 8, the bottom end of the stand 8 is welded with a metal bottom plate, the metal bottom plate is fixed on the top end outer wall of the assembly case 2 through a plurality of screws, the top end of the stand 8 is provided with a top seat 9, the front end of the top seat 9 is provided with a press-fitting cylinder 7, the press-fitting cylinder 7 is internally provided with a cylinder plunger, the bottom end of the cylinder plunger is fixed with an assembly cylinder shaft 11, the bottom end of the assembly cylinder shaft 11 is exposed to the lower side of the outer wall of the bottom end of the press-fitting cylinder 7, the cylinder plunger in the press-fitting cylinder 7 moves up and down under the action of a power source such as gas pressure or hydraulic pressure, when the cylinder plunger moves downward, the press-fitting head 12 at the bottom end of the screw fixing sleeve 10 drives the assembly cylinder shaft 11 and the press-fitting head 12 to move downward, the bottom end of the assembly cylinder shaft 11 is externally provided with the screw fixing sleeve 10, the screw fixing sleeve 10 is fixedly connected with the assembly cylinder shaft 11 through a plurality of screws, the bottom end of the screw fixing sleeve 10 is provided with the press-fitting head 12, the press-fitting head 12 is located directly above the press-fitting block 6, which ensures the accuracy of applying pressure to the rivet in the vertical direction, and this accurate positional relationship helps to improve the assembly accuracy and reduce assembly errors. The shaft rivet automatic assembly device mainly comprises an assembly case 2, a screw fixing bottom plate 5, a press-fitting block 6, a bottom lifting device 4, a stand 8, a top seat 9, a press-fitting cylinder 7 and the like, and its working process is that the positioning clamp automatically clamps the rivet and places the shaft rivet in the shaft rivet supporting groove of the press-fitting block 6, and then the press-fitting head 12 is driven by the press-fitting cylinder 7 to perform press-fitting operation on the rivet. The pressure of the press-fitting head 12 on the rivet can be controlled by adjusting the pressure of the power source such as gas pressure or hydraulic pressure, and according to different rivets and riveting piece materials, sizes and other factors, the appropriate pressure can be adjusted to ensure that the rivet can be firmly combined with the riveting piece without damaging the riveting piece. The press-fitting block 6 is a solid metal block inside, which has sufficient weight and strength and can withstand the pressure in the press-fitting process without deformation. The overall structural design of the assembly case 2 also ensures the stability of the device during the press-fitting process, reducing the assembly errors caused by vibration or shaking.

[0025] As Figure 1 , Figure 4 and Figure 5As shown, the top end of the assembly box 2 is also provided with a bottom lifting device 4, which comprises a cuboid metal block 13, a magnetic bottom plate 14, a circular groove 16 and a circular fixed magnet 17. The outer wall of the top end of the assembly box 2 is equidistantly covered with a plurality of downwardly recessed circular grooves 16, and a plurality of circular grooves 16 are fixed with a circular fixed magnet 17 inside. The plurality of circular fixed magnets 17 are kept on the same horizontal plane with the outer wall of the top end of the assembly box 2. Two magnetic bottom plates 14 are placed on the top end of the assembly box 2, and the top end of each magnetic bottom plate 14 is provided with a cuboid metal block 13. The magnetic bottom plate 14 can be magnetically adsorbed by the circular fixed magnet 17. The circular fixed magnet 17 can magnetically adsorb the magnetic bottom plate 14, so that the bottom lifting device 4 can be quickly and conveniently fixed on the specific position of the assembly box 2. When the position needs to be adjusted, the magnetic bottom plate 14 can also be easily moved, improving the convenience of operation. The magnetic bottom plate 14 is placed on the top end of the assembly box 2 and can be magnetically adsorbed by the circular fixed magnet 17. The top end of the magnetic bottom plate 14 is provided with a cuboid metal block 13, which serves as a supporting structure and provides a mounting basis for the supporting screw 19 and the circular lifting block 15. The combination of the magnetic bottom plate 14 and the cuboid metal block 13 enables the bottom lifting device 4 to be stably placed on the assembly box 2 and to remain in a fixed position under the action of magnetic adsorption, ensuring that the lifting riveting part will not move during lifting. The bottom lifting device 4 further comprises a circular lifting block 15, an adjusting screw hole 18 and a supporting screw 19. The center and the inside of the front and rear sides of the cuboid metal block 13 are provided with adjusting screw holes 18. The supporting screw 19 is screwed into the adjusting screw hole 18. The top end of the supporting screw 19 is provided with a circular lifting block 15. The adjusting screw hole 18 cooperates with the supporting screw 19 to realize the up and down movement of the supporting screw 19 through threaded connection. When the riveting part at the bottom is of irregular shape or the center of gravity is biased to the outside, the height of the circular lifting block 15 can be adjusted by rotating the supporting screw 19 according to the specific shape and requirements of the riveting part, so that the riveting part can be lifted at the appropriate position. The top end of the circular lifting block 15 is smooth without burrs, which avoids damaging the riveting part during lifting.

[0026] As Figure 1 , Figure 4 and Figure 5As shown, the support screw 19 rotates clockwise and counterclockwise to move up and down in the adjusting screw hole 18 through the threaded action, the top outer wall of the circular lifting block 15 is smooth without burrs, the sum of the thicknesses of the rectangular metal block 13, the magnetically attracted bottom plate 14 and the circular lifting block 15 is less than the sum of the thicknesses of the screw fixed bottom plate 5 and the compression assembly block 6, the bottom lifting device 4 is mainly used for lifting the riveting and pressing parts with special shapes or off-center gravity during assembly to ensure the stability and accuracy of assembly, when the automatic assembly of the rotating shaft rivet is carried out, the bottom lifting device 4 is placed at the top of the assembly box 2 in a suitable position, the magnetically attracted bottom plate 14 is attracted and fixed by the circular fixed magnet 17, according to the shape and height requirements of the riveting and pressing part, the support screw 19 is rotated to adjust the height of the circular lifting block 15, so that the stable lifting action of the circular lifting block 15 on the bottom of the riveting and pressing part is generated, during the compression assembly process, the bottom lifting device 4 works with the compression assembly block 6 to ensure the stability and accuracy of the riveting and pressing part during assembly, and the magnetic attraction of the circular fixed magnet 17 and the magnetically attracted bottom plate 14 makes the installation and adjustment of the bottom lifting device 4 very convenient and fast, improves the work efficiency, and the design of the support screw 19 and the adjusting screw hole 18 makes the height of the circular lifting block 15 flexible to adjust according to different riveting and pressing parts, improves the versatility and adaptability of the device.

[0027] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing detailed description of the present application is made with reference to the foregoing embodiments, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, should be included in the scope of protection of the present application.

Claims

1. A rotating shaft rivet automatic assembly device, comprising an assembly box (2) and a screw fixing bottom plate (5) arranged at the front side of the center of the top outer wall of the assembly box (2), the screw fixing bottom plate (5) is fixedly connected with the assembly box (2) through a plurality of screws, a press-fit assembly block (6) is welded at the top of the screw fixing bottom plate (5), the press-fit assembly block (6) is a solid metal block inside, a rotating shaft rivet supporting groove recessed downward is arranged at the top center of the press-fit assembly block (6), and the rotating shaft rivet bottom can be directly placed in the rotating shaft rivet supporting groove, characterized in that: The assembly case (2) top end is provided with bottom lifting device (4) still; The bottom lifting device (4) includes cuboid metal block (13), magnetic bottom plate (14), circular groove (16) and circular fixed magnet (17), the top end outer wall of assembly case (2) is equidistantly densely covered with multiple downward recessed circular grooves (16), multiple circular grooves (16) are fixed with circular fixed magnet (17) inside, multiple circular fixed magnets (17) are kept on the same horizontal plane with the top end outer wall of assembly case (2), two magnetic bottom plates (14) are placed on the top end of the assembly case (2), two magnetic bottom plates (14) are provided with cuboid metal block (13) on the top end, the magnetic bottom plate (14) can be magnetically adsorbed by the circular fixed magnet (17).

2. The automatic rivet assembly device for a rotating shaft according to claim 1, characterized in that: The bottom lifting device (4) further includes circular lifting block (15), adjusting screw hole (18) and supporting screw (19), the center and the inside of the front and back of the cuboid metal block (13) are provided with adjusting screw hole (18), the supporting screw (19) is screwed into the adjusting screw hole (18), and the top end of the supporting screw (19) is provided with a circular lifting block (15).

3. The automatic rivet assembly device for a rotating shaft according to claim 2, characterized in that: The supporting screw (19) can be rotated clockwise and counterclockwise to move up and down in the adjusting screw hole (18) through the thread action, the top end outer wall of the circular lifting block (15) is smooth without burrs, and the sum of the thicknesses of the cuboid metal block (13), the magnetic bottom plate (14) and the circular lifting block (15) is less than the sum of the thicknesses of the screw fixing bottom plate (5) and the compression assembly block (6).

4. The automatic rivet assembly device for a rotating shaft according to claim 1, characterized in that: The assembly case (2) is provided with a placing foot (1) at the bottom corner, a maintenance window is reserved in the front end of the assembly case (2), a convenient maintenance door (3) is arranged in the maintenance window, and the convenient maintenance door (3) is fixedly connected with the assembly case (2) through a plurality of embedded screws.

5. The automatic rivet assembly device for a rotating shaft according to claim 1, characterized in that: The compression assembly block (6) is provided with a stand (8) at the back, a metal bottom plate is welded at the bottom of the stand (8), the metal bottom plate is fixed on the top end outer wall of the assembly case (2) through a plurality of screws, and a top seat (9) is arranged at the top front end of the stand (8).

6. The automatic rivet assembly device for a rotating shaft according to claim 5, wherein: The top seat (9) is provided with a compression assembly cylinder (7) at the front end, the compression assembly cylinder (7) is provided with a cylinder plunger inside, the cylinder plunger is fixedly connected with an assembly cylinder shaft (11) at the bottom end, and the assembly cylinder shaft (11) is exposed below the bottom end outer wall of the compression assembly cylinder (7).

7. The automatic rivet assembly device for a rotating shaft according to claim 6, characterized in that: The assembly cylinder shaft (11) is provided with a screw fixing sleeve (10) at the bottom end, the screw fixing sleeve (10) is fixedly connected with the assembly cylinder shaft (11) through a plurality of screws, the screw fixing sleeve (10) is provided with a compression assembly pressure head (12) at the bottom end, and the compression assembly pressure head (12) is located directly above the compression assembly block (6).

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