O-shaped ring shaping device, using method and feeding equipment

Abstract

The invention belongs to the technical field of O-shaped rings, and discloses an O-shaped ring shaping device, a using method and feeding equipment, the O-shaped ring shaping device comprises a base, an inner extrusion mechanism and an outer extrusion mechanism are arranged on the base, the inner extrusion mechanism is in a circular ring shape, an outer ring of the inner extrusion mechanism is provided with an outer extrusion face, and the outer extrusion mechanism is arranged outside the inner extrusion mechanism; the outer extrusion mechanism comprises a plurality of extrusion blocks arranged on the base in a sliding mode, the multiple extrusion blocks are arranged around the inner extrusion mechanism, and the face, facing the inner extrusion mechanism, of each extrusion block is an inner extrusion face. The face, back on to the inner extrusion mechanism, of each extrusion block is connected with a power source through a transmission mechanism. An O-shaped ring placed in the extrusion groove is extruded through cooperation of the outer extrusion face and the inner extrusion face, and the O-shaped ring is shaped through the extrusion effect. Deformation of the O-shaped ring in the assembling process can be reduced, and the assembling success rate can be increased.

Description

Technical Field

[0001] The invention belongs to the technical field of O-rings, and in particular relates to an O-ring shaping device, a use method and a feeding device. Background Art

[0002] The O-ring is a commonly used sealing component in the mechanical field, and its cross section is circular. When in use, it is installed in the target ring groove in the shape of an annular ring, and then compressed by the components on both sides to form an effective seal between two or more components. The assembly of the O-ring can be realized by relying on a vacuum adsorption device to realize automatic assembly. The O-ring is adsorbed and fixed by the vacuum adsorption device, and then the vacuum adsorption device is driven to move to the target ring groove by a driving mechanism in a three-dimensional direction, and then the O-ring is placed in the target ring groove. However, the above vacuum adsorption device is only suitable for O-rings of smaller size. When the vacuum adsorption device is used to automatically assemble large-sized O-rings, many problems are prone to occur because the O-rings are more prone to large-sized deformation: First, in order to facilitate automatic assembly, the O-rings are generally stacked before being adsorbed and grasped. When the top O-ring is adsorbed and grasped, because the lower part of the top O-ring is other elastic O-rings, it is easy to cause the top O-ring to be adsorbed as a whole to be difficult to be in a horizontal state, which may cause the top O-ring to be partially not adsorbed. Secondly, the O-ring is sensitive to temperature changes. When the temperature of the assembly environment changes, the size of the O-ring may deform and become larger than its designed size. The irregular changes caused by the above deformation can easily cause the O-ring to tilt and shift relative to the target ring groove, which in turn causes part of the O-ring to be unable to fit into the target ring groove. The outer edge of the O-ring that cannot fit into the target ring groove is also easily squeezed and cut off by the components on both sides during assembly, causing damage to the O-ring. The current existing technology uses manual assembly, which manually puts the O-ring into the groove and then squeezes and adjusts it as a whole, and finally presses the O-ring into the groove. In this case, manual adjustment back and forth is required, which takes a lot of time, and there is uncertainty in the quality. The quality of manual assembly also varies from person to person, and the differences are large.

[0003] The Chinese patent publication number is CN106041510A, and the name is a patent application for camera waterproof sealing ring assembly equipment. The equipment includes an installation platform, an O-ring feeding assembly mechanism, a camera housing feeding mechanism, a rotary station conveying mechanism, an assembly inspection mechanism, and a finished product discharging mechanism. The O-ring feeding assembly mechanism can realize automatic grasping and handling of O-rings, the camera housing feeding mechanism can realize automatic loading of the camera housing, and the block structure on the housing positioning carrier can realize automatic sleeve of the O-ring in the groove on the camera housing. The quality inspection of the O-ring after assembly can be realized by re-checking the CCD; the finished product discharging mechanism can realize automatic unloading of the O-ring after assembly. Although this patent application can grasp O-rings, it cannot realize the shaping of large-sized O-rings. Summary of the invention

[0004] In order to overcome the problems existing in the above-mentioned prior art, the purpose of the present invention is to provide an O-ring shaping device, a method of use and a feeding device, wherein the shaping device is used to shape the O-ring before being assembled into the target ring groove, and the O-ring placed in the extrusion groove is extruded by the cooperation of the outer extrusion surface and the inner extrusion surface, so that the O-ring is shaped by the extrusion action. After the O-ring is shaped, a vacuum adsorption device is used to adsorb and grasp the O-ring. Since the O-ring has been shaped, the deformation of the O-ring during the assembly process can be reduced, and the success rate of assembly can be improved.

[0005] To achieve the above object, the technical solution adopted by the present invention is: An O-ring shaping device comprises: a base, an inner extrusion mechanism and an outer extrusion mechanism are arranged on the base, the inner extrusion mechanism is annular, the outer ring of the inner extrusion mechanism has an outer extrusion surface, and the outer extrusion mechanism is arranged outside the inner extrusion mechanism; the outer extrusion mechanism comprises a plurality of extrusion blocks slidably arranged on the base, the plurality of extrusion blocks are arranged around the inner extrusion mechanism, and the side of each extrusion block facing the inner extrusion mechanism is the inner extrusion surface; the side of each extrusion block facing away from the inner extrusion mechanism is connected to a power source through a transmission mechanism.

[0006] Optionally, both the outer extrusion surface and the inner extrusion surface are arc-shaped surfaces.

[0007] Optionally, the thickness of the inner extrusion mechanism is greater than or equal to one third of the radius of the O-ring and less than or equal to two thirds of the radius of the O-ring.

[0008] Optionally, the transmission mechanism between the power source and the extrusion block is an electric push rod, and the transmission mechanism between the power source and the extrusion block is arranged along the radial direction of the inner extrusion mechanism.

[0009] Optionally, a plurality of connecting columns are fixedly provided on the base, a threaded hole is provided at the top of the connecting column, a stepped hole is provided at the bottom of the internal extrusion mechanism, the stepped hole support of the internal extrusion mechanism is positioned on the connecting column, and the internal extrusion mechanism is connected to the connecting column via a threaded fastener.

[0010] Optionally, the power source is connected to a connecting seat through a transmission mechanism, a sliding hole is provided on the connecting seat, an extrusion block connecting hole is provided at the bottom of the extrusion block, a sliding column is provided in the connecting seat, and the sliding column is installed in the extrusion block connecting hole; a support plate is provided on the outer movable sleeve of the extrusion block, and the support plate is connected to the connecting seat.

[0011] Optionally, an elastic member is sleeved on the sliding column.

[0012] The method for using the O-ring shaping device comprises the following steps: The extrusion blocks are pulled by a power source so that each extrusion block maintains a gap with the inner extrusion mechanism; Place the O-ring between the inner extrusion surface and the outer extrusion surface; The extrusion blocks are pushed by a power source so that the inner extrusion surface of each extrusion block is in contact with the O-ring, thereby completing the extrusion shaping of the O-ring.

[0013] An O-ring feeding device comprises the O-ring shaping device.

[0014] Optionally, the O-ring loading equipment also includes a working platform, a material picking device and a vacuum adsorption device, and the O-ring loading equipment and the material picking device are both arranged on the working platform; the material picking device has a storage mechanism; a plurality of O-rings are placed in the storage mechanism; the vacuum adsorption device has an adsorption block, and the adsorption block has an adsorption groove matching the O-ring.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention proposes an O-ring shaping device, a method of use and a feeding device. The shaping device of the present invention is used to shape the O-ring before being assembled into the target ring groove. The O-ring is first placed into the extrusion groove, and then the driving mechanism is used to drive the external extrusion mechanism to move, and the spacing value between the external extrusion surface and the internal extrusion surface is adjusted. The O-ring placed into the extrusion groove is extruded by the cooperation of the external extrusion surface and the internal extrusion surface, and the O-ring is shaped by the extrusion action. After the O-ring is shaped, a vacuum adsorption device is used to adsorb and grasp the O-ring. Since the O-ring has been shaped, the deformation of the O-ring during the assembly process can be reduced, and the success rate of assembly can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are for explanation purposes only and are not intended to limit the scope of the present invention in any way. In addition, the shapes and proportional dimensions of the components in the drawings are only for illustration purposes to help understand the present invention, and are not intended to specifically limit the shapes and proportional dimensions of the components of the present invention. In the drawings: Figure 1 A schematic structural diagram of a shaping device for an O-ring feeding device provided in an embodiment of the present application; Figure 2 It is a partial exploded view of the shaping device; Figure 3 It is a top view of the shaping device when the external extrusion mechanism is in the extrusion position; Figure 4 A top view of the shaping device when the outer extrusion mechanism is in the unfolded position; Figure 5When the extrusion block is in the initial position, the shaping device moves along Figure 3 Cross-sectional view at the middle PP position; Figure 6 for Figure 5 A magnified schematic diagram of part A; Figure 7 When the extrusion block is in the retracted position, the shaping device moves along Figure 3 Cross-sectional view at the middle PP position; Figure 8 for Figure 7 A magnified schematic diagram of part B; Fig. 9 It is a structural schematic diagram of the external extrusion mechanism and the connecting seat in the shaping device; Fig.10 It is an exploded view of the external extrusion mechanism and the connecting seat in the shaping device; Fig.11 When the extrusion block is in the initial position, the shaping device moves along Figure 3 Sectional view at the middle QQ position; Fig.12 for Fig.11 A magnified schematic diagram of part C; Fig.13 A schematic diagram of the structure of an O-ring feeding device equipped with the shaping device provided in this embodiment; Fig.14 for Fig.13 The enlarged schematic diagram of the D part; Fig.15 It is a schematic diagram of the structure of the vacuum adsorption device in the O-ring feeding equipment; Fig.16 It is a schematic diagram of the structure of the adsorption block in the vacuum adsorption device.

[0017] Among them, 1. base; 10. connecting column; 2. inner extrusion mechanism; 20. outer extrusion surface; 3. outer extrusion mechanism; 30. extrusion block; 300. inner extrusion surface; 301. extrusion block connecting hole; 31. support plate; 310. perforation; 32. extrusion groove; 4. driving mechanism; 40. power source; 41. connecting seat; 410. sliding column; 4100. limiting plate; 4101. annular gasket; 411. elastic member; 5. outer shell; 6. working platform; 7. material taking device; 70. chassis; 71. limiting column; 72. mounting plate; 720. limiting hole; 73. fixture; 8. vacuum adsorption device; 80. adsorption block; 800. lower pressure surface; 801. adsorption groove; 802. positioning column; 9. O-ring. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0019] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] In the description of the embodiments of the present invention, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the invention is usually placed when used. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0021] When an element is referred to as being "disposed on" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may also be a central element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only embodiments. If the term "horizontal" appears, it does not mean that the component is required to be absolutely horizontal, but it can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", which does not mean that the structure must be completely horizontal, but it can be slightly tilted.

[0022] It should be noted that similar reference numerals and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further defined and explained in the subsequent figures. In the description of the present invention, it is understood that the terms "include" and "comprise" indicate the presence of the described features, wholes, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or their collections.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art of the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the specification of the present invention and the appended claims, the singular forms of "a", "an" and "the" are intended to include plural forms unless the context clearly indicates otherwise.

[0024] The present invention is described in detail below with reference to the accompanying drawings.

[0025] O-rings, also known as O-rings, O-rings, and O-rings, are a type of ring-shaped mechanical gasket. It is an annular elastic body with a circular cross section. It is generally fixed in a groove and will be compressed by two or more components during the assembly process, thus creating a sealed interface. O-rings can be used in static applications, such as insulating basins in combined electrical appliances, and in dynamic applications where there is relative motion between components, such as the shaft of a rotary pump and the piston of a hydraulic cylinder.

[0026] An O-ring shaping device, characterized in that it comprises: a base 1, on which an inner extrusion mechanism 2 and an outer extrusion mechanism 3 are arranged, the inner extrusion mechanism 2 is annular, the outer ring of the inner extrusion mechanism 2 has an outer extrusion surface 20, and the outer extrusion mechanism 3 is arranged outside the inner extrusion mechanism 2; the outer extrusion mechanism 3 comprises a plurality of extrusion blocks 30 slidably arranged on the base 1, the plurality of extrusion blocks 30 are arranged around the inner extrusion mechanism 2, and a side of each extrusion block 30 facing the inner extrusion mechanism 2 is an inner extrusion surface 300; a side of each extrusion block 30 facing away from the inner extrusion mechanism 2 is connected to a power source 40 through a transmission mechanism.

[0027] The shaping device of the present invention is used to shape the O-ring before being assembled into the target ring groove. The O-ring is first placed into the extrusion groove, and then the driving mechanism is used to drive the external extrusion mechanism to move, and the spacing value between the external extrusion surface and the internal extrusion surface is adjusted. The O-ring placed into the extrusion groove is extruded by the cooperation of the external extrusion surface and the internal extrusion surface, and the O-ring is shaped by the extrusion action. After the O-ring is shaped, a vacuum adsorption device is used to adsorb and grasp the O-ring. Since the O-ring has been shaped, the deformation of the O-ring during the assembly process can be reduced, and the success rate of assembly can be improved.

[0028] Example 1 like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown in , an O-ring shaping device of the present invention comprises a base 1, an inner extrusion mechanism 2, an outer extrusion mechanism 3 and a driving mechanism 4.

[0029] The inner extrusion mechanism 2 is fixedly arranged on the base 1 ; the outer extrusion mechanism 3 is movably arranged on the base 1 ; the driving mechanism 4 is connected to the outer extrusion mechanism 3 and is used to drive the outer extrusion mechanism 3 to move.

[0030] The inner extrusion mechanism 2 is annular in shape. In this embodiment, the inner extrusion mechanism 2 has an outer extrusion surface 20 for abutting against the inner ring of the O-ring 9 , and the outer extrusion mechanism 3 has an inner extrusion surface 300 for abutting against the outer ring of the O-ring 9 .

[0031] The inner extrusion mechanism 2 cooperates with the outer extrusion mechanism 3 to form an extrusion groove 32 for the O-ring 9 to be placed in. The side walls of the extrusion groove 32 are the outer extrusion surface 20 and the inner extrusion surface 300 respectively.

[0032] like Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown in , the driving mechanism 4 drives the outer extrusion mechanism 3 to move relative to the base 1, so that the radial spacing value between the outer extrusion surface 20 and the inner extrusion surface 300 can be adjusted.

[0033] The outer extrusion mechanism 3 has an extrusion position and an expansion position relative to the base 1. The outer extrusion mechanism 3 is driven to move relative to the base 1 by the driving mechanism 4, and the radial spacing value between the outer extrusion surface 20 and the inner extrusion surface 300 is adjusted, that is, the outer extrusion mechanism 3 is driven to switch between the extrusion position and the expansion position.

[0034] When the outer extrusion mechanism 3 is in the expanded position, the radial spacing between the outer extrusion surface 20 and the inner extrusion surface 300 is relatively large, which facilitates the insertion of the O-ring 9 to be assembled into the extrusion groove 32; when the outer extrusion mechanism 3 is in the extrusion position, the radial spacing between the outer extrusion surface 20 and the inner extrusion surface 300 is relatively reduced, and the O-ring 9 already placed in the extrusion groove 32 is extruded to achieve the purpose of extrusion shaping.

[0035] The shaping device of this embodiment is used to shape the O-ring 9 before being assembled into the target ring groove. The O-ring 9 is first placed into the extrusion groove 32, and then the driving mechanism 4 is used to drive the outer extrusion mechanism 3 to move, so as to adjust the spacing value between the outer extrusion surface 20 and the inner extrusion surface 300.

[0036] The O-ring 9 inserted into the extrusion groove 32 is extruded by the cooperation of the outer extrusion surface 20 and the inner extrusion surface 300 , and the O-ring 9 is shaped by the extrusion effect.

[0037] After the O-ring 9 is shaped, the vacuum adsorption device 8 is used to adsorb and grab the O-ring 9. Since the O-ring 9 has been shaped, the deformation of the O-ring 9 during the assembly process can be reduced, greatly improving the success rate of assembly.

[0038] like Figure 1 and Figure 2 As shown, in this embodiment, the inner extrusion mechanism 2 is a flat plate fixedly disposed on the base 1 . Furthermore, the inner extrusion mechanism 2 is a flat plate in a circular ring shape, and the outer ring surface of the inner extrusion mechanism 2 is the outer extrusion surface 20 .

[0039] like Figure 6 As shown, the thickness of the inner extrusion mechanism 2 is smaller than the cross-sectional diameter of the O-ring 9. The cross-sectional diameter of the O-ring 9 is circular, and the cross-sectional diameter of the O-ring 9 is also called the wire diameter. Since the thickness of the inner extrusion mechanism 2 is smaller than the cross-sectional diameter of the O-ring 9, when the vacuum adsorption device 8 is used to adsorb and grasp the O-ring 9 that has been extruded and shaped in the extrusion groove 32, the inner extrusion mechanism 2 will not interfere with the lower surface of the adsorption structure in the vacuum adsorption device 8, thereby not affecting the automated operation of adsorption and grasping.

[0040] Specifically, the thickness dimension of the inner extrusion mechanism 2 in this embodiment is set to H, and the cross-sectional diameter dimension of the O-ring 9 is set to R. In this embodiment, H is half of the R value.

[0041] Optionally, ⅓R≤H≤⅔R. Within this height dimension range, the inner extrusion mechanism 2 is neither too thin to achieve a good extrusion shaping effect on the O-ring 9, nor too thick to better avoid the aforementioned interference.

[0042] Alternatively, if Figure 1 As shown, the inner extrusion mechanism 2 in this embodiment is detachably mounted on the base 1. A connecting column 10 is fixedly arranged on the base 1, a threaded hole is arranged at the end of the connecting column 10, and a stepped hole is arranged on the inner extrusion mechanism 2. The inner extrusion mechanism 2 is supported and positioned on the connecting column 10 through the stepped hole, and then a screw is inserted into the stepped hole and tightened into the screw hole on the connecting column 10, so that the inner extrusion mechanism 2 can be detachably fixedly mounted relative to the base 1.

[0043] When the shaping device needs to extrude and shape O-rings 9 with different inner diameters, the matching can be achieved by replacing the inner extrusion mechanisms 2 with different sizes. Specifically, the diameter size of the outer extrusion surface 20 of the inner extrusion mechanism 2 is configured to be the same as the inner diameter size of the target ring groove. When the O-rings 9 need to be assembled for different workpieces, if the sizes of the target ring grooves on different workpieces are different, it is only necessary to replace an inner extrusion mechanism 2 that matches the size of the target ring groove, without redesigning and modifying the shaping device as a whole.

[0044] like Figure 2 , Figure 3 and Figure 4As shown in the figure, the outer extrusion mechanism 3 in this embodiment includes a plurality of extrusion blocks 30 slidably arranged relative to the base 1, and the plurality of extrusion blocks 30 are arranged circumferentially around the outside of the inner extrusion mechanism 2, and the side surface of the plurality of extrusion blocks 30 facing the outer extrusion surface 20 is the inner extrusion surface 300.

[0045] Furthermore, in the present embodiment, each extrusion block 30 is provided with a corresponding driving mechanism 4, the driving mechanism 4 includes a power source 40 and a connecting seat 41 fixedly arranged at the output end of the power source 40, the extrusion block 30 is fixed on the connecting seat 41, and can move radially along the outer extrusion mechanism 3 following the connecting seat 41 under the drive of the power source 40.

[0046] Specifically in this embodiment, the transmission mechanism between the power source 40 and the extrusion block 30 is an electric push rod, which can drive the connection seat 41 to move, and the connection seat 41 can drive the extrusion block 30 to move, thereby adjusting the spacing value between the inner extrusion surface 300 and the outer extrusion surface 20 to achieve extrusion shaping of the O-ring 9. Specifically, the driving mechanism 4 also includes a mechanical transmission mechanism arranged between the power source 40 and the connection seat 41.

[0047] Optionally, the power source 40 is a motor or an air pump.

[0048] like Figure 2 , Figure 6 and Figure 8 As shown in , the outer extrusion mechanism 3 in this embodiment further includes a support plate 31 which is arranged in one-to-one correspondence with the plurality of extrusion blocks 30, the support plate 31 is fixedly arranged on the connection seat 41, and can move synchronously with the connection seat 41, and a through hole 310 which is adapted to the extrusion block 30 is opened on the support plate 31, and the extrusion block 30 passes through the through hole 310 and is installed on the connection seat 41. Furthermore, the connection seat 41 has a protrusion, and the side of the protrusion facing the inner extrusion mechanism 2 matches the edge of the support plate 31 which faces away from the inner extrusion mechanism 2.

[0049] The outer edge of the support plate 31 exceeds the bottom of the extrusion block 30 , and the outer extrusion surface 20 , the inner extrusion surface 300 and the support plate 31 therebetween cooperate to form an extrusion groove 32 .

[0050] The height dimension of the portion of the extrusion block 30 protruding upward from the support plate 31 when the extrusion block 30 is in the initial position is set to h1, and the height dimension of the portion of the extrusion block 30 protruding upward from the support plate 31 when the extrusion block 30 is in the retracted position is set to h2. As mentioned above, the cross-sectional diameter dimension of the O-ring 9 is set to R. It is set that h2

[0051] Specifically, h2 is equal to R in this embodiment.

[0052] Preferably, h2>⅔R.​

[0053] When the extrusion block 30 is in the initial position, it can extrude the O-ring 9 well and achieve a good shaping effect. At the same time, when the vacuum adsorption device 8 is used to adsorb and grab the O-ring 9 that has been extruded and shaped in the extrusion groove 32, under the pressure of the lower surface of the adsorption structure in the vacuum adsorption device 8, the extrusion block 30 can move from the initial position to the retracted position. When the extrusion block 30 moves to the retracted position, the height of the part of the extrusion block 30 protruding from the support plate 31 will not interfere with the adsorption structure.

[0054] Furthermore, if Figure 5 As shown in the figure, with the x direction as the bottom and the s direction as the top, when the driving mechanism 4 drives the outer extrusion surface 20 and the inner extrusion surface 300 to be at the maximum distance, the upper surface of the support plate 31 and the lower surface of the inner extrusion mechanism 2 are fitted or gap-fitted, and the portion of the upper surface of the support plate 31 located between the outer extrusion surface 20 and the inner extrusion surface 300 constitutes the bottom wall of the extrusion groove 32.

[0055] Combination Figure 6 and Figure 8 As shown in , the extrusion block 30 in this embodiment is movably arranged on the connecting seat 41, and the extrusion block 30 has an initial position and a retracted position relative to the connecting seat 41. The extrusion block 30 can switch between the initial position and the retracted position by sliding relative to the connecting seat 41.

[0056] Optionally, the extrusion block 30 is fixed on the connection seat 41, and the height dimension of the portion of the extrusion block 30 protruding from the support plate is between one third and two thirds of the cross-sectional diameter dimension of the O-ring. It is easy to understand that the solution of movably setting the extrusion block 30 on the connection seat 41 provided in this embodiment can achieve a better extrusion shaping effect, thereby better improving the success rate of the automatic assembly of the O-ring.

[0057] Furthermore, the shaping device also includes an elastic member 411 and a limiting structure arranged between the extrusion block 30 and the connecting seat 41 .

[0058] The elastic member 411 can exert pressure on the extrusion block 30 so that the extrusion block 30 has a tendency to move toward the initial position, and the elastic member 411 cooperates with the limiting structure to position the extrusion block 30 at the initial position.

[0059] Specifically in this embodiment, combined with Fig. 9 , Fig.10 , Fig.11 and Fig.12As shown in , an extrusion block connection hole (301) is provided at the bottom of the extrusion block 30. Specifically, the extrusion block connection hole (301) is a stepped hole. A sliding hole is provided in the connection seat 41. The sliding hole corresponds to the position of the extrusion block connection hole (301). A sliding post 410 is provided in the sliding hole. A threaded hole is provided at the upper end of the sliding post 410. A screw is inserted into the stepped hole and tightened into the threaded hole of the sliding post 410, so that the sliding post 410 can be fixedly installed on the extrusion block 30.

[0060] The lower section of the sliding post 410 is slidably disposed in the sliding hole of the connecting seat 41 , so that the extrusion block 30 can slide up and down relative to the connecting seat 41 through the sliding post 410 .

[0061] Specifically, the limiting structure is a limiting plate 4100, which is fixedly mounted at the bottom of the sliding column 410. When the extrusion block 30 is at the initial position, the limiting plate 4100 abuts against the lower surface of the connecting seat 41. Optionally, an annular gasket 4101 and an elastic member 411 are provided on the outer sleeve of the sliding column 410. One end of the elastic member 411 abuts against the extrusion block 30, and the other end of the compression spring abuts against the annular gasket 4101.

[0062] Specifically, in this embodiment, the elastic member 411 is a compression spring.

[0063] When the vacuum adsorption device 8 is used to adsorb and grasp the O-ring 9 that has been extruded and shaped in the extrusion groove 32, under the pressure of the lower surface of the adsorption structure in the vacuum adsorption device 8, the pressing block brings the slide column 410 to overcome the elastic force of the elastic member 411 and move downward relative to the connecting seat 41. After the vacuum adsorption device 8 adsorbs and grasps the O-ring 9 and moves away, under the elastic force of the elastic member 411, the extrusion block (30) brings the slide column 410 to move upward and reset until it stops under the limiting action of the limiting plate 4100, at which time the pressing block is at the initial position.

[0064] Example 2 like Fig.13 , Fig.14 and Fig.15 As shown, an O-ring feeding device includes the above-mentioned shaping device, a working platform 6, a material taking device 7 and a vacuum adsorption device 8.

[0065] The base 1 is an annular structure. In this embodiment, the shaping device further comprises a housing 5 which is arranged outside the driving mechanism 4, so as to reduce the amount of dust entering into the shaping device.

[0066] The material taking device 7 and the shaping device are both arranged on the working platform 6. The material taking device 7 and the vacuum adsorption device 8 are both equipped with a horizontal displacement driving mechanism and a vertical displacement driving mechanism.

[0067] The material taking device 7 in this embodiment includes a storage mechanism for placing the O-ring 9 and a clamping mechanism for transferring the O-ring 9 from the storage mechanism and placing it in the extrusion groove 32 .

[0068] The vacuum adsorption device 8 in this embodiment is used to transfer the O-ring 9 from the extrusion groove 32 and install it into the target ring groove.

[0069] The storage mechanism in this embodiment includes a chassis 70 and a limiting structure for sleeve-arranging the O-ring 9, and the limiting structure includes a plurality of limiting columns 71 uniformly arranged along the circumferential direction on the chassis 70. A plurality of O-rings 9 to be assembled are stacked and sleeved outside the limiting structure.

[0070] The clamping mechanism in this embodiment includes a mounting plate 72 and a plurality of clamps 73 evenly arranged on the mounting plate 72 along the circumferential direction. The clamps 73 are used to clamp the O-ring 9 arranged outside the limiting structure. The mounting plate 72 is located above the chassis 70, and the mounting plate 72 is provided with a limiting hole 720 aligned with the limiting column 71.

[0071] When the number of O-rings 9 to be assembled decreases as the assembly operation proceeds, the mounting plate 72 is required to drive the clamp 73 to move downward as a whole to clamp the O-rings 9 to be assembled in the lower position. By providing a limiting hole 720 on the mounting plate 72, there is no need to worry about interference between the limiting column 71 and the mounting plate 72.

[0072] Combination Fig.15 and Fig.16 As shown in , the vacuum adsorption device 8 in this embodiment includes an adsorption block 80 . The adsorption block 80 has a lower pressing surface 800 . The lower pressing surface 800 has an adsorption groove 801 matched with the O-ring 9 .

[0073] When the vacuum adsorption device 8 is working, the adsorption groove 801 is aligned with the O-ring 9 that has been extruded and shaped and moved downward, so that part of the O-ring 9 enters the adsorption groove 801, and then the vacuum pump in the vacuum adsorption device 8 connected with the adsorption groove 801 is used for suction to generate negative pressure in the adsorption groove 801, thereby tightly adsorbing and positioning the O-ring 9 in the adsorption groove 801. A positioning column 802 is also provided on the lower pressure surface 800, and a positioning hole matched with the positioning column 802 is provided on the shaping device, so that the adsorption groove 801 and the extrusion groove 32 can be aligned and positioned in the horizontal direction through the cooperation of the positioning column 802 and the positioning hole.

[0074] An O-ring feeding device of this embodiment, when used, comprises the following steps: First, the clamping mechanism is driven to move to the top of the material storage mechanism through the horizontal displacement driving mechanism and the vertical displacement driving mechanism, and then the clamping mechanism is controlled to move downward and the clamp 73 is controlled to clamp the O-ring 9 located at the top.

[0075] The clamping mechanism is then driven to move to the top of the shaping device by the horizontal shift drive mechanism and the vertical shift drive mechanism. At this time, the driving mechanism 4 in the shaping device controls the external extrusion mechanism 3 to move to the unfolded position, and then controls the clamping mechanism to move downward so that the O-ring 9 is placed in the extrusion groove 32.

[0076] The driving mechanism 4 in the shaping device controls the outer extrusion mechanism 3 to move to the extrusion position, and the inner extrusion surface 300 on the outer extrusion mechanism 3 and the outer extrusion surface 20 on the inner extrusion mechanism 2 are used to apply pressure to the inner and outer sides of the O-ring 9, thereby achieving extrusion shaping of the O-ring 9, making it difficult for the shape and size of the O-ring 9 to undergo significant deformation.

[0077] Then, the adsorption block 80 in the vacuum adsorption device 8 is controlled to move to the top of the shaping device, so that the adsorption groove 801 is aligned with the extrusion groove 32. The adsorption block 80 is controlled to move downward. During the downward movement of the adsorption block 80, the lower pressure surface 800 of the adsorption block 80 applies pressure to the extrusion block 30 in the shaping device, so that the extrusion block 30 moves downward. During this process, the upper part of the O-ring 9 gradually enters the adsorption groove 801. Then, the O-ring 9 is positioned in the adsorption groove 801 by the vacuum adsorption force, and the adsorption block 80 in the vacuum adsorption device 8 is controlled to move to the top of the target ring groove.

[0078] Finally, the adsorption block 80 in the vacuum adsorption device 8 is controlled to move downward until the O-ring 9 enters the target ring groove, and then the vacuum adsorption force is canceled to position the O-ring 9 in the target ring groove.

[0079] Unless otherwise specified, the device elements involved in the above embodiments are all conventional device elements, and the structural settings, working modes or control modes involved are all conventional settings, working modes or control modes in the art unless otherwise specified.

[0080] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the present invention by ordinary technicians in the field should be included in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. An O-ring shaping device, characterized in that: include: A base (1), wherein an inner extrusion mechanism (2) and an outer extrusion mechanism (3) are arranged on the base (1); the inner extrusion mechanism (2) is in the shape of a ring, the outer ring of the inner extrusion mechanism (2) has an outer extrusion surface (20), and the outer extrusion mechanism (3) is arranged outside the inner extrusion mechanism (2); the outer extrusion mechanism (3) comprises a plurality of extrusion blocks (30) slidably arranged on the base (1), the plurality of extrusion blocks (30) are arranged around the inner extrusion mechanism (2), and a side of each extrusion block (30) facing the inner extrusion mechanism (2) is an inner extrusion surface (300); and a side of each extrusion block (30) facing away from the inner extrusion mechanism (2) is connected to a power source (40) via a transmission mechanism.

2. An O-ring shaping device according to claim 1, characterized in that: The outer extrusion surface (20) and the inner extrusion surface (300) are both arc-shaped curved surfaces.

3. An O-ring shaping device according to claim 1, characterized in that: The thickness of the inner extrusion mechanism (2) is greater than or equal to one third of the radius of the O-ring (9) and less than or equal to two thirds of the radius of the O-ring (9).

4. An O-ring shaping device according to claim 1, characterized in that: The transmission mechanism between the power source (40) and the extrusion block (30) is an electric push rod, and the transmission mechanism between the power source (40) and the extrusion block (30) is arranged along the radial direction of the inner extrusion mechanism (2).

5. An O-ring shaping device according to claim 1, characterized in that: A plurality of connecting columns (10) are fixedly arranged on the base (1), a threaded hole is arranged at the top of the connecting column (10), and a stepped hole is arranged at the bottom of the inner extrusion mechanism (2), the stepped hole of the inner extrusion mechanism (2) is supported and positioned on the connecting column (10), and the inner extrusion mechanism (2) is connected to the connecting column (10) via a threaded fastener.

6. An O-ring shaping device according to claim 1, characterized in that: The power source (40) is connected to a connecting seat (41) via a transmission mechanism, a sliding hole is provided on the connecting seat (41), an extrusion block connecting hole (301) is provided at the bottom of the extrusion block (30), a sliding column (410) is provided in the connecting seat (41), and the sliding column (410) is installed in the extrusion block connecting hole (301); a support plate (31) is provided on the outer movable sleeve of the extrusion block (30), and the support plate (31) is connected to the connecting seat (41).

7. An O-ring shaping device according to claim 6, characterized in that: An elastic member (411) is sleeved on the sliding column (410).

8. A method for using an O-ring shaping device according to any one of claims 1 to 7, characterized in that: The following steps are involved: The extrusion blocks (30) are pulled by a power source (40) so that a gap is maintained between each extrusion block (30) and the inner extrusion mechanism (2); Place the O-ring (9) between the inner extrusion surface (300) and the outer extrusion surface (20); The extrusion blocks (30) are pushed by a power source (40) so that the inner extrusion surface (300) of each extrusion block (30) is in contact with the O-ring (9), thereby completing the extrusion shaping of the O-ring (9).

9. An O-ring feeding device, characterized in that: An O-ring shaping device comprising any one of claims 1 to 7.

10. An O-ring feeding device according to claim 9, characterized in that: The O-ring feeding device further comprises a working platform (6), a material taking device (7) and a vacuum adsorption device (8), wherein the O-ring feeding device and the material taking device (7) are both arranged on the working platform (6); the material taking device (7) comprises a material storage mechanism; a plurality of O-rings (9) are placed in the material storage mechanism; the vacuum adsorption device (8) comprises an adsorption block (80), and the adsorption block (80) comprises an adsorption groove (801) matching the O-ring (9).

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