Assembly apparatus

Abstract

The embodiment of the present application discloses an assembling device, which utilizes at least three expansion heads capable of moving away from and close to each other to form a positioning table to clamp a sealing ring when being combined with each other, and to open the sealing ring when being separated from each other. Meanwhile, at least three adapters staggered with the expansion heads are utilized to wrap the sealing ring in the opened state, and after the adapters abut on a to-be-assembled part, the sealing ring is further pushed into the to-be-assembled part through a separating part. Thus, on the one hand, the opening range of the sealing ring before being wrapped into the to-be-assembled part is guaranteed, and the elasticity of the sealing ring is avoided from being damaged due to the too large opening range. On the other hand, the sealing ring can be automatically completed from being opened to being pushed into the to-be-assembled part through the assembling device, and the operation strength of an operator is saved. On the other hand, the sequential cooperation of the expansion head, the adapter and the separating head enables the sealing ring to be smoothly transferred between the three workpieces, and the surface of the sealing ring is avoided from being scratched in the assembling process.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of automation assembly, in particular to an assembling device. BACKGROUND

[0002] The sealing ring is a common sealing part in the field of machinery, which is divided into V-shaped, U-shaped, O-shaped and rectangular forms according to the different cross-sectional shapes. When cooperating with the parts, the elasticity of the sealing ring is used to fit on the parts. However, when the elasticity of the sealing ring is large, the size is small, or the number of sealing rings to be assembled is large, it will bring difficulties to the assembly of the operator. How to improve the assembly efficiency of the sealing ring becomes a problem to be solved. SUMMARY

[0003] Therefore, the embodiment of the present application provides an assembling device, which uses the expansion head capable of moving away from each other to hold the sealing ring, and further uses the cooperation of the adapter and the separation head to fit the sealing ring on the assembly part.

[0004] The assembling device of the embodiment of the present application comprises:

[0005] The expansion assembly comprises at least three expansion parts, each of the expansion parts has an expansion head, the expansion heads of the at least three expansion parts are distributed circumferentially and are combined to form a positioning table, and each of the expansion heads is operable to move radially along the positioning table.

[0006] The adapter assembly comprises an adapter part and a separation part, the adapter part and the separation part are arranged on one side of the table surface of the positioning table and are operable to move along the center of the positioning table, the adapter part comprises at least three adapter heads, the at least three adapter heads are circumferentially spaced and staggered with each of the expansion heads, and the separation part comprises a plurality of separation heads, the separation heads are adjacent to the adapter heads and are operable to move telescopically relative to the adapter heads.

[0007] Further, the separation head corresponds to the adapter head one by one, the separation head has a separation surface facing the positioning table, each of the separation heads is at least partially arranged between two adjacent adapter heads, and the separation surface is at least partially located on the circumferential outer side of each of the adapter heads.

[0008] Further, the adapter part further comprises a rod body, each of the adapter heads is located at one end of the rod body, and the opposite side of each of the adapter heads has a first guide surface.

[0009] The separation part comprises a cylinder body, the cylinder body is telescopically arranged on the rod body, each of the separation heads is located at one end of the cylinder body, the separation head has a sliding area protruding towards the center of the cylinder body, and the sliding area is slidably arranged between two adjacent first guide surfaces.

[0010] Further, the adapter assembly further comprises:

[0011] a resilient member; and

[0012] a rack comprising a limiting block having a groove;

[0013] the adapter further comprises:

[0014] a limiting platform protruding from an end of the rod body away from the adapter, one end of the resilient member abutting against the rack and the other end abutting against the limiting platform;

[0015] the rod body is arranged in the groove, and the limiting platform abuts against one side of the limiting block away from the adapter.

[0016] Further, the expansion head has a first arc surface and a guide inclined surface, the first arc surface is located laterally of the positioning platform, and the guide inclined surface is located between the top surface of the positioning platform and the first arc surface.

[0017] Further, the expansion head has two split surfaces and a first avoiding surface located between the two split surfaces, two adjacent expansion heads are split with each other through the two split surfaces on opposite sides, and the first avoiding surface faces the center of the positioning platform.

[0018] Further, the expansion head has two second avoiding surfaces, and the two second avoiding surfaces are located on two sides of the positioning platform and recessed towards the bottom of the positioning platform.

[0019] Further, the expansion head further has two third avoiding surfaces, and the two third avoiding surfaces are located on opposite sides of two adjacent expansion heads.

[0020] When the adapter moves laterally of the positioning platform, the third avoiding surfaces avoid the adapter.

[0021] Further, the expansion assembly further comprises:

[0022] a driving part comprising a telescopic member;

[0023] the expansion part has a second guide surface;

[0024] the second guide surfaces of the at least three expansion parts are uniformly arranged around the center of the positioning platform and face the top of the telescopic member.

[0025] Further, the top of the telescopic member is a partial spherical surface.

[0026] the second guide surface comprises a second arc surface, and the second arc surface curves towards the spherical surface.

[0027] Further, the assembling device further comprises:

[0028] The feeding assembly comprises a discharge port;

[0029] The base comprises an air passage and a stopper, the air passage has an air inlet and an air outlet, the stopper corresponds to the air outlet and has a spacing, the positioning table is located between the air outlet and the stopper, and the height of the table top of the positioning table is lower than that of the stopper;

[0030] The air supply assembly comprises an air nozzle, the air nozzle is in communication with the air inlet and adjacent to the discharge port.

[0031] Further, the feeding assembly further comprises a track, and the discharge port is located at one end of the track;

[0032] The base further comprises:

[0033] The moving body has a material groove, and the moving body has a first position and a second position;

[0034] When the moving body is located at the first position, the material groove is located between the air inlet and the air nozzle, and when the moving body is located at the second position, the material groove is aligned with the discharge port.

[0035] Further, the moving body further has an air groove, and the air groove is arranged in a spaced manner with the material groove;

[0036] When the moving body is located at the first position, the air nozzle is in communication with the air passage through the air groove.

[0037] Further, the air passage has a rectangular cross section in the extension direction, the air passage comprises a horizontal section and an inclined section, the air outlet is located at the inclined section, and the height of the air outlet is lower than that of the horizontal section.

[0038] Further, the base further comprises:

[0039] The table top has an operation window, the operation window comprises a first arc-shaped area and a second arc-shaped area, the first arc-shaped area is adjacent to the air outlet, and the second arc-shaped area is located away from the air outlet;

[0040] The positioning table is movably arranged at a corresponding position of the first arc-shaped area and the second arc-shaped area;

[0041] The adapter and the separation part correspond to the second arc-shaped area.

[0042] The assembling device of the embodiment of the present application utilizes at least three expansion heads capable of moving away from and approaching each other to form a positioning table to clamp the sealing ring when being combined with each other, and to open the sealing ring when being separated from each other. Meanwhile, at least three adapters staggered with the expansion heads are utilized to wrap the sealing ring in the opened state on the adapters, and after the adapters abut on the to-be-assembled part, the sealing ring is further pushed into the to-be-assembled part by the separating part. In this way, on the one hand, the opening range of the sealing ring before being wrapped into the to-be-assembled part is ensured, and the elastic of the sealing ring is avoided from being damaged due to the too large opening range. On the other hand, the sealing ring is automatically completed from being opened to being pushed into the to-be-assembled part by the assembling device, and the operation strength of the operator is saved. On the other hand, the sequential cooperation of the expansion head, the adapter and the separating head enables the sealing ring to be smoothly transferred between the above three workpieces, and the surface of the sealing ring is avoided from being scratched in the assembling process. BRIEF DESCRIPTION OF DRAWINGS

[0043] The above and other objects, features and advantages of the present application will become more apparent from the following description of embodiments of the present application taken in conjunction with the accompanying drawings, in which:

[0044] Figure 1 is a structural schematic view of one side of the assembling device of the embodiment of the present application;

[0045] Figure 2 is a structural schematic view of the other side of the assembling device of the embodiment of the present application;

[0046] Figure 3 is a sectional view of the assembling device of the embodiment of the present application;

[0047] Figure 4 is a structural schematic view of the other side of the assembling device of the embodiment of the present application;

[0048] Figure 5 is a structural schematic view of the adapter of the embodiment of the present application;

[0049] Figure 6 is a structural schematic view of the separating part of the embodiment of the present application;

[0050] Figure 7 is a structural schematic view of the expansion assembly of the embodiment of the present application;

[0051] Figure 8 is a sectional view of the expansion part of the embodiment of the present application;

[0052] Figure 9 is an exploded schematic view of the plurality of expansion parts of the embodiment of the present application;

[0053] Figure 10 is an exploded schematic view of the base of the embodiment of the present application;

[0054] Figure 11 is a schematic diagram of the deformation of the sealing ring of an embodiment of the present application;

[0055] Figure 12 is a schematic diagram of the working process of the expansion assembly and the adapter assembly of an embodiment of the present application.

[0056] Legend of reference signs:

[0057] 1 - expansion assembly;

[0058] 1a - expansion part;

[0059] 11 - expansion head; 111 - first arc surface; 112 - guide inclined surface; 113 - split surface; 114 - first avoiding surface; 115 - second avoiding surface; 116 - third avoiding surface; 117 - second guide surface;

[0060] 12 - positioning table;

[0061] 13 - driving part; 131 - telescopic part; 1311 - spherical surface;

[0062] 1b - base;

[0063] 14 - slide;

[0064] 15 - sliding block;

[0065] 2 - adapter assembly;

[0066] 21 - adapter part; 211 - adapter head; 2111 - first guide surface; 212 - rod body; 213 - limiting table;

[0067] 22 - separation part; 221 - separation head; 2211 - separation surface; 2212 - sliding area; 2213 - fourth avoiding surface; 222 - cylinder body;

[0068] 23 - elastic part; 24 - rack; 241 - limiting block; 242 - groove;

[0069] 3 - feeding assembly;

[0070] 31 - discharge port; 32 - track;

[0071] 4 - base body;

[0072] 41 - air channel; 411 - air inlet; 412 - air outlet; 413 - horizontal section; 414 - inclined section;

[0073] 42 - shoveling part; 421 - moving body; 4211 - material groove; 4212 - first position; 4213 - second position; 4214 - air groove;

[0074] 43 - countertop; 431 - operating window; 4311 - first arc-shaped area; 4312 - second arc-shaped area;

[0075] 44 - stopper;

[0076] 5 - gas supply assembly; 51 - gas nozzle;

[0077] 6 - bracket;

[0078] 71 - sealing ring; 72 - to-be-assembled part 72;

[0079] 8 - sensor. DETAILED DESCRIPTION

[0080] The present application is described herein below based on examples, but the present application is not limited only to these examples. In the following detailed description of the present application, some specific details are described in detail. The present application can be fully understood without the description of these details by those skilled in the art. In order to avoid confusion of the essence of the present application, well-known methods, processes, procedures, elements and circuits are not described in detail.

[0081] In addition, those of ordinary skill in the art will appreciate that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale.

[0082] Unless the context clearly requires otherwise, throughout the description, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is to say, in the sense of "including, but not limited to".

[0083] For ease of description, spatially relative terms such as "inner", "outer", "beneath", "below", "lower", "above", "upper", and the like, can be used herein for the purpose of describing elemental and conceptual relationships between various elements and components of the apparatus as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. For example, if a device is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the example term "below" can encompass both an orientation of above and below. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein should be interpreted accordingly.

[0084] Figures 1-2Figure 1 is a schematic diagram of the structure of the assembly device in different directions. The assembly device in the figure includes a feeding assembly 3, a gas supply assembly 5, an expansion assembly 1, an adapter assembly 2, a base 4, and a support 6. The support 6 raises the base 4, the expansion assembly 1, and the adapter assembly 2, so that the outlet 31 of the feeding assembly 3 can be aligned with the gas inlet 411 on the base 4. Figure 3 Figure 2 is a schematic diagram of the cross-section of the assembly device. Figure 4 Figure 3 is a schematic diagram of another side of the assembly device. Figures 3-4 As can be further seen in Figure 3, one end of the air channel 41 is the gas inlet 411, and the other end is the gas outlet 412, which is adjacent to the positioning table 12.

[0085] Figure 5 Figure 4 is a schematic diagram of the structure of the adapter 21. Figure 6 Figure 5 is a schematic diagram of the structure of the separation head 221. Both the adapter 211 and the separation head 221 are provided at the end, and the length of the separation head 221 is less than that of the adapter 211, so that the separation head 221 can slide relative to the adapter 211.

[0086] Figures 7-9 Figures 6, 7, and 8 are schematic diagrams of the structure of the expansion assembly 1, the cross-section of the expansion head 11, and the explosion of the expansion head 11, respectively. As can be seen from the figures, the number of a set of expansion heads 11 is 4, and each expansion head 11 is provided with an expansion head 11, which can form a positioning table 12 in the close state. In the separation state, they can move away from each other. In the separation state, the expansion head 11 can expand the to-be-expanded object to a certain size, so that the to-be-expanded object can be sleeved on the adapter 211, and then further sleeved on the circumferential position of the to-be-assembled member 72. The circumferential position includes a cylindrical side wall or a circumferential groove, etc. The to-be-expanded object can be an elastic ring, which has the ability to deform in its radial direction when the expansion head 11 applies a force, and restores or partially restores to the original size when the expansion head 11 removes the force. For example, the elastic ring can be a sealing ring 71. The following will be described taking the sealing ring 71 as an example.

[0087] Figure 10 Figure 9 is an explosion schematic diagram of the base. The sealing ring 71 in the figure is in the position before entering the base 4 from the track 32. That is, at this time, the sealing ring 71 is located on the track 32 of the feeding assembly 3.

[0088] Figure 11 Figure 10 is a deformation schematic diagram of the sealing ring 71 of the embodiment of the present application. The thick solid line in the figure is the state of no deformation. The thin solid line and the dotted line represent two deformation states, respectively. Figure 12 Figure 11 is a working flow schematic diagram of the expansion assembly and the adapter assembly. Through the cooperation of the expansion head 11, the adapter 211, and the separation head 221, the sealing ring 71 can be installed on the to-be-assembled member 72.

[0089] In some embodiments, as shown in Figures 1-12 The assembling device comprises an expansion assembly 1 and an adapter assembly 2. The expansion assembly 1 comprises at least three expansion portions 1a, each of which has an expansion head 11, and the expansion heads 11 of the at least three expansion portions 1a are distributed circumferentially and are spliced together to form a positioning table 12, and each expansion head 11 is operable to move radially along the positioning table 12. The adapter assembly 2 comprises an adapter portion 21 and a separation portion 22, which are arranged on one side of the table surface of the positioning table 12 and are operable to move along the center of the positioning table 12, the adapter portion 21 comprises at least three adapter heads 211, which are circumferentially spaced apart and staggered with each expansion head 11, and the separation portion 22 comprises a plurality of separation heads 221, which are adjacent to the adapter heads 211 and are operable to move telescopically relative to the adapter heads 211.

[0090] The assembling device of the embodiment of the present application utilizes at least three expansion heads 11 that can move away from and close to each other, forms the positioning table 12 to clamp the sealing ring 71 when spliced together, and can also expand the sealing ring 71 when separated. At the same time, at least three adapter heads 211 that are staggered with the expansion heads 11 are used to sleeve the sealing ring 71 in the expanded state thereon, and after the adapter heads 211 abut on the to-be-assembled part 72, the sealing ring 71 is further pushed into the to-be-assembled part by the separation portion 22. In this way, on the one hand, the expansion amplitude of the sealing ring 71 before being sleeved into the to-be-assembled part 72 is ensured, and the expansion amplitude is prevented from being too large to damage the elasticity of the sealing ring 71. On the other hand, the sealing ring 71 can be automatically completed from expansion to pushing into the to-be-assembled part by the assembling device, which saves the operation strength of the operator. On the other hand, the sequential cooperation of the expansion heads 11, the adapter heads 211 and the separation heads 221 enables the sealing ring 71 to be smoothly transferred between the above three workpieces, and the surface of the sealing ring 71 is prevented from being scratched during the assembling process.

[0091] Specifically, the number of expansion heads 11 is four, which are uniformly arranged circumferentially around the center line of the positioning table 12. Moreover, each expansion head 11 is of the same size.

[0092] In some embodiments, as shown in Figures 1-12 The expansion head 11 has a first arc surface 111 and a guide inclined surface 112, the first arc surface 111 is located laterally of the positioning table 12, and the guide inclined surface 112 is located between the table surface of the positioning table 12 and the first arc surface 111.

[0093] In some embodiments, as shown in Figures 1-12 The expansion assembly 1 further comprises a base 1b, and the base 1b is provided with a sliding channel 14. Correspondingly, the expansion portion 1a further comprises a sliding block 15 located at the bottom of the expansion head 11. Through the precise cooperation of the sliding channel 14 and the sliding block 15, the expansion head 11 can be stably moved.

[0094] The expansion head 11 of the present embodiment is used to outwardly expand the sealing ring 71, and before expansion, a plurality of expansion heads 11 are spliced to form a positioning table 12. The guide slope 112 can guide the sealing ring 71 that falls into the positioning table 12, so as to guide the sealing ring 71 when the sealing ring 71 and the positioning table 12 have a slight misalignment. A plurality of first arc surfaces 111 are spliced to form the side surface of the positioning table 12. The positioning table 12 can pre-position the sealing ring 71. The sealing ring 71 placed in the positioning table 12 will slide to the bottom of the first arc surface 111 of the positioning table 12 (as shown by the thick solid line in the middle right drawing). Figure 8 The sealing ring 71 shown by the thin solid line in the middle left drawing is in the expanded state, and the size after expansion should be adapted to the size of the outer circumferential surface of the plurality of adapters 211 (as shown by the state II in the middle drawing), that is, should be greater than or slightly greater than the size of the outer circumferential surface formed by the plurality of adapters 211. The state II in the drawing also shows two circular dash-dotted lines A and B. The dash-dotted line A is the approximate contour of the sealing ring 71 after the expansion head 11 expands the sealing ring 71, and the dash-dotted line B is the contour formed by the outer circumferential surface of the plurality of adapters 211 after the adapter 211 penetrates into the inner side of the sealing ring 71. After the adapter 211 is inserted to the predetermined position, the plurality of expansion heads 11 are moved towards each other (as shown by the arrow C in the state III in the middle drawing), so that the sealing ring 71 is tightly stretched on the plurality of adapters 211. After the adapter 211 and the to-be-assembled part 72 abut together, the expanded sealing ring 71 is pushed onto the to-be-assembled part 72 by using the separation head 221. Figure 8 Figure 12 The sealing ring 71 shown by the thin solid line in the middle left drawing is in the expanded state, and the size after expansion should be adapted to the size of the outer circumferential surface of the plurality of adapters 211 (as shown by the state II in the middle drawing), that is, should be greater than or slightly greater than the size of the outer circumferential surface formed by the plurality of adapters 211. The state II in the drawing also shows two circular dash-dotted lines A and B. The dash-dotted line A is the approximate contour of the sealing ring 71 after the expansion head 11 expands the sealing ring 71, and the dash-dotted line B is the contour formed by the outer circumferential surface of the plurality of adapters 211 after the adapter 211 penetrates into the inner side of the sealing ring 71. After the adapter 211 is inserted to the predetermined position, the plurality of expansion heads 11 are moved towards each other (as shown by the arrow C in the state III in the middle drawing), so that the sealing ring 71 is tightly stretched on the plurality of adapters 211. After the adapter 211 and the to-be-assembled part 72 abut together, the expanded sealing ring 71 is pushed onto the to-be-assembled part 72 by using the separation head 221. Figure 12 It is easy to understand that the number of the expansion head 11 and the adapter 211 of the present embodiment is configured to be greater than or equal to 3. The purpose is to better expand the sealing ring 71 to a certain size.

[0095] The two deformation modes of the sealing ring 71 shown in the middle drawing show the expansion position of the expansion head 11. The dash-dotted line shows the deformation mode of the racetrack shape, and there are only two expansion heads 11. In this state, although the size of the sealing ring 71 in the horizontal direction is increased, the size in the vertical direction is reduced, so that the adapter 211 cannot effectively penetrate into the inner side of the sealing ring 71 in the expanded state. In contrast, if the number of the expansion head 11 is three, the sealing ring 71 can be effectively expanded in the deformation plane of the sealing ring 71. The thin solid line in the drawing shows the effect of expanding the sealing ring 71 by using four expansion heads 11. Figure 11 In some embodiments, as shown in the left drawing of FIG. 8, the expansion head 11 is used to expand the sealing ring 71, and the expansion head 11 is spliced to form a positioning table 12. The guide slope 112 can guide the sealing ring 71 that falls into the positioning table 12, so as to guide the sealing ring 71 when the sealing ring 71 and the positioning table 12 have a slight misalignment. A plurality of first arc surfaces 111 are spliced to form the side surface of the positioning table 12. The positioning table 12 can pre-position the sealing ring 71. The sealing ring 71 placed in the positioning table 12 will slide to the bottom of the first arc surface 111 of the positioning table 12 (as shown by the thick solid line in the middle right drawing).

[0096] Figures 1-12 ​​As shown, the separation head 221 corresponds to the adapter head 211 one by one, and the separation head 221 has a separation surface 2211 facing the positioning table 12. Each separation head 221 is at least partially arranged between two adjacent adapter heads 211, and the separation surface 2211 is at least partially located on the circumferential outer side of each adapter head 211. In this embodiment, the separation head 221 is arranged between two expansion heads 11, and when the sealing ring 71 is pushed away from the expansion head 11, it can directly abut the position of the sealing ring 71 that is not in contact with the expansion head 11, so as to ensure that the sealing ring 71 is smoothly removed from the adapter head 211, and the sealing ring 71 is prevented from rolling along the adapter head 211.

[0097] In some embodiments, as shown in Figures 1-12 As shown, the adapter part 21 further includes a rod body 212, and each adapter head 211 is located at one end of the rod body 212. Each adapter head 211 has a first guide surface 2111 on the opposite side. The separation part 22 includes a barrel 222, which is telescopically arranged on the rod body 212. Each separation head 221 is located at one end of the barrel 222, and the separation head 221 has a sliding area 2212 protruding towards the center of the barrel 222. The sliding area 2212 is slidably arranged between two adjacent first guide surfaces 2111. The sliding area 2212 can ensure that the separation part stably telescopes relative to the adapter part, and the separation of the sealing ring 71 from the adapter head 211 is more stable.

[0098] Further, the separation head 221 further includes a fourth avoiding surface 2213, which is arranged adjacent to the separation surface 2211 and is located close to the center of the barrel 222 and recessed towards the barrel 222. The shape of the fourth avoiding surface 2213 can be configured to be adapted to the edge of the to-be-assembled part 72.

[0099] As can be easily understood, when the separation head 221 pushes the sealing ring 71 from the adapter head 211 to the to-be-assembled part 72, the fourth avoiding surface 2213 of the present embodiment abuts on the to-be-assembled part 72, so that the separation surface 2211 can be moved to the lateral side of the to-be-assembled part 72 (as shown in state V of FIG. 8). Figure 12

[0100] In some embodiments, as shown in Figures 1-12 As shown, the adapter assembly 2 further includes an elastic member 23 and a rack 24. The rack 24 includes a limiting block 241 having a groove 242. The adapter part 21 further includes a limiting table 213 protruding from one end of the rod body 212 away from the adapter head 211. One end of the elastic member 23 abuts against the rack 24, and the other end abuts against the limiting table 213. The rod body 212 is arranged in the groove 242, and the limiting table 213 abuts against the side of the limiting block 241 away from the adapter head 211.

[0101] ​The elastic element in this embodiment provides elasticity when the adapter abuts against the component 72 to be assembled, thus limiting the force exerted by the adapter 211 against the component 72. This ensures that the sealing ring 71 moves stably from the expansion head 11 to the component 72 to be assembled, while preventing the expansion head 11 from generating excessive stress on the component 72, thereby protecting the component 72.

[0102] Specifically, the end shape of the expansion head 11 matches the shape of the part to be assembled 72. Figure 5 The dashed lines in the diagram illustrate the structure of a component 72 to be assembled, where the side facing the expansion head 11 is a circular surface, and the shape of the opposite side of the expansion head 11 and the component 72 is aligned with the edge of the circular edge. That is, the outer edge of the end face of the expansion head 11 is a partially rounded arc. This allows the sealing ring 71 to move smoothly from the expansion head 11 onto the component 72 to be assembled.

[0103] In some implementations, such as Figures 1-12 As shown, the expansion head 11 has two mating surfaces 113 and a first clearance surface 114 located between the two mating surfaces 113. Two adjacent expansion heads 11 are mated together by the two mating surfaces 113 on opposite sides, and the first clearance surface 114 faces the center of the positioning platform 12. Figure 7 As can be seen from the positioning platform 12 shown, multiple first clearance surfaces 114 surround the center of the adapter 211, forming a hole extending along the center of the positioning platform 12. These first clearance surfaces 114 ensure that the mating surfaces 113 are completely fitted when multiple expansion heads 11 are assembled together, thereby avoiding interference between the expansion heads 11 at the center position of the positioning platform 12.

[0104] In some implementations, such as Figures 1-12 As shown, the expansion head 11 has two second clearance surfaces 115, which are located on both sides of the positioning platform 12 and recessed toward the bottom of the positioning platform 12. In this embodiment, the second clearance surfaces 115 can avoid the adapter 211 when it moves toward the positioning platform 12.

[0105] In some implementations, such as Figures 1-12As shown, the expansion head 11 also has two third avoiding surfaces 116, which are located on the opposite sides of two adjacent expansion heads 11. When the adapter 211 moves to the lateral side of the positioning table 12, the third avoiding surfaces 116 avoid the adapter 211. Similar to the above embodiment, the third avoiding surfaces of the present embodiment can avoid the expansion head 11 in the circumferential direction. When the movement range of the expansion head 11 is small, the adapter 211 is close to the expansion head 11 when moving towards the expansion head 11, and thus the third avoiding surfaces 116 of the present embodiment can enable the adapter 211 to move along the expansion head 11. Especially when the sealing ring 71 is small in size and small in elastic deformation, the sealing ring 71 can be well transferred from the expansion head 11 to the adapter 211.

[0106] In some embodiments, as shown in Figures 1-12 As shown, the expansion assembly 1 also includes a driving part 13. The driving part 13 includes a telescopic part 131. The expansion part 1a has a second guide surface 117. The second guide surfaces 117 of the at least three expansion parts 1a are uniformly arranged around the center of the positioning table 12 and face the top of the telescopic part 131.

[0107] Figure 8 A cooperation form between the telescopic part and the expansion head 11 is shown in the figure. When the telescopic part 131 is lifted upwards, each expansion head 11 moves radially synchronously. In order to ensure the consistency of the movement of each expansion head 11, the second guide surfaces 117 are arranged along the center of the positioning table 12. In this form, after the telescopic part 131 is lifted by a certain distance, each expansion head 11 can move synchronously to ensure the same distance from the center of the positioning table 12.

[0108] Further, the top of the telescopic part 131 is a partial spherical surface 1311. The second guide surface 117 includes a second arc surface, which is curved towards the spherical surface 1311. In the present embodiment, the cooperation between the second arc surface and the spherical surface can make the movement of the expansion head 11 smoother, so that the sealing ring 71 can be expanded gently, avoiding the situation that the sealing ring 71 is pulled off or damaged.

[0109] In some embodiments, as shown in Figures 1-12 As shown, the assembly device also includes a feeding assembly 3, a base 4 and a gas supply assembly 5. The feeding assembly 3 includes a discharge port 31. The base 4 includes an air channel 41 and a stop block 44, the air channel 41 has an air inlet 411 and an air outlet 412, the stop block 44 corresponds to the air outlet 412 and has a gap, the positioning table 12 is located between the air outlet 412 and the stop block 44, and the height of the table surface of the positioning table 12 is lower than that of the stop block 44. The gas supply assembly 5 includes a gas nozzle 51, which is in communication with the air inlet 411 and adjacent to the discharge port 31.

[0110] Specifically, Figure 2The enlarged view shows an arrangement of a stop block 44, an air passage 41, and a positioning platform 12. The bottom of the stop block 44 corresponds to the exhaust port 412. The exhaust port 412 also has an extension section in its extending direction, and the positioning platform 12 is located within this extension section and faces its top. When the sealing ring 71 is blown out of the exhaust port 412 by airflow, it continues to move along the extension section, and is then blocked by the stop block 44, losing its kinetic energy and falling onto the positioning platform 12. Therefore, the stop block 44 in this embodiment can prevent the sealing ring 71 from being directly blown out of the exhaust port 412 due to excessive airflow.

[0111] In some implementations, such as Figures 1-12 As shown, the cross-section of the air passage 41 extending in the direction of extension is rectangular. The air passage 41 includes a horizontal section 413 and an inclined section 414. The exhaust port 412 is located in the inclined section 414, and the height of the exhaust port 412 is lower than that of the horizontal section 413. When the sealing ring 71, which moves within the air passage, moves to the top of the inclined section 414, it will contact the top of the inclined section, thereby reducing its movement speed. In this state, after the sealing ring 71 collides with the stop block 44, it will not bounce excessively towards the air inlet 411, allowing it to fall accurately onto the positioning platform 12.

[0112] In some implementations, such as Figures 1-12 As shown, the feeding assembly 3 also includes a track 32, with the discharge port 31 located at one end of the track 32. The base 4 also includes a feeding part 42, which includes a moving body 421. The moving body 421 has a material trough 4211, and the moving body 421 has a first position 4212 and a second position 4213. When the moving body 421 is in the first position 4212, the material trough 4211 is located between the air inlet 411 and the air nozzle 51. When the moving body 421 is in the second position 4213, the material trough 4211 is aligned with the discharge port 31.

[0113] In this embodiment, the movable body 421 can move the sealing ring 71 located on the track 32 to the air nozzle 51 position (air inlet 411 position) in sequence, and then blow the sealing ring 71 to the exhaust port 412 position through the high-pressure airflow blown out of the air nozzle 51.

[0114] It is easy to understand that the feeding component 5 in this embodiment can be a vibratory feeder. A vibratory feeder is an auxiliary feeding device for automatic assembly or automatic processing machinery. It can arrange various products in an orderly manner, cooperate with automatic assembly equipment to assemble the various parts of the product into a complete product, or cooperate with automatic processing machinery to complete the processing of workpieces. Through the cooperation between the moving body 421 and the vibratory feeder, the sealing rings 71 can be conveyed one by one to the positioning table 12.

[0115] Further, the moving body 421 further has an air groove 4214, which is arranged at a position spaced from the material groove 4211. When the moving body 421 is located at the first position 4212, the air nozzle 51 is in communication with the air channel 41 through the air groove 4214.

[0116] Specifically, the air groove 4214 and the material groove 4211 in the embodiment have a rectangular cross-sectional shape, and both extend through the moving body 421. After the moving body 421 sends the sealing ring 71 in the material groove 4211 into the air channel 41 through the air nozzle 51, the moving body 421 is reset, i.e., moves to the first position 4212. At this time, the air groove 4214 can communicate the air nozzle 51 with the air channel 41, so as to realize the synchronous operation of transporting the sealing ring 71 on the track 32 to the material groove 4211 and transporting the sealing ring 71 in the air channel 41 to the positioning table 12, so as to improve the operation efficiency.

[0117] In some embodiments, as shown in Figures 1-12 the base further comprises a table top 43, which has an operation window 431 including a first arc-shaped area 4311 adjacent to the exhaust port 412 and a second arc-shaped area 4312 located away from the exhaust port 412. The positioning table 12 is movably arranged at a position corresponding to the first arc-shaped area 4311 and the second arc-shaped area 4312. The adapter 21 and the separation part 22 correspond to the second arc-shaped area 4312. The positioning table 12 in the embodiment has a first station and a second station. The first station is located adjacent to the exhaust port 412, which can facilitate the accurate landing of the sealing ring 71 on the positioning table 12. When the positioning table 12 moves to the second station, the sealing ring 71 is expanded, which can facilitate the sleeving of the sealing ring 71 on the adapter 211.

[0118] In some embodiments, as shown in Figures 1-12 the assembly device in the embodiment is further provided with a sensor 8, which is located at a position of the material groove 4211 (as shown in Figure 10 ) and a position of the exhaust port 412 (as shown in Figure 3 ). The two sensors 8 can respectively determine whether the sealing ring 71 correctly enters the material groove 4211 from the track 32 and whether the sealing ring 71 correctly lands on the positioning table 12.

[0119] The assembly device in the above embodiments can be operated through the following steps. In some embodiments, as shown in Figures 1-12As shown, first, the sealing ring 71 is moved into the trough 4211 by the vibration plate, and at this time the moving body 421 is located at the second position 4213. The moving body 421 is moved to the first position 4212, the air supply assembly 5 is started, the sealing ring 71 is blown into the air channel 41, and the moving body 421 is reset. Second, the air supply assembly 5 is started again, the sealing ring 71 located in the air channel 41 is blown onto the positioning table 12 (as shown in the middle state I), and the positioning table 12 is moved to the position corresponding to the adapter 211 (the second arc-shaped area 4312). Third, the sealing ring 71 is expanded by the plurality of expansion heads 11 (as shown in the middle state II), and the adapter 211 is moved to the inside of the sealing ring 71. Then the expansion heads 11 are reversely driven, so that the sealing ring 71 is tightly stretched on the adapter 211 (as shown in the middle state III). Fourth, the adapter 211 is pulled up and abuts on the to-be-assembled part 72 (as shown in the middle state IV). Finally, the separation head 221 is started to push the sealing ring 71 away from the adapter 211, so that the sealing ring 71 is sleeved on the to-be-assembled part 72 (as shown in the middle state V). The assembly device is reset, waiting for the next assembly. Figure 12 Figure 12 Figure 12 Figure 12 Figure 12

[0120] The above only describes the preferred embodiments of the present application, and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the protection scope of the present application.​​​​​

Claims

1. An assembly apparatus, characterized by The assembly device comprises: An expansion assembly (1) comprising at least three expansion portions (1a), each of the expansion portions (1a) having an expansion head (11), the expansion heads (11) of the at least three expansion portions (1a) being distributed circumferentially and being spliced together to form a positioning table (12), and each of the expansion heads (11) being operable to move radially along the positioning table (12); An adapter assembly (2) comprising an adapter portion (21) and a separation portion (22), the adapter portion (21) and the separation portion (22) being arranged on one side of a table surface of the positioning table (12) and being operable to move along the center of the positioning table (12), the adapter portion (21) comprising at least three adapter heads (211) that are circumferentially spaced apart and staggered with each of the expansion heads (11), and the separation portion (22) comprising at least three separation heads (221) that are adjacent to the adapter heads (211) and are operable to move telescopically relative to the adapter heads (211); The adapter portion (21) further comprises a rod body (212), each of the adapter heads (211) being located at one end of the rod body (212), and the separation portion (22) comprising a cylinder body (222) that is telescopically sleeved on the rod body (212), each of the separation heads (221) being located at one end of the cylinder body (222); Each of the separation heads (221) corresponds to one of the adapter heads (211), and each of the separation heads (221) is at least partially arranged between two adjacent adapter heads (211), and the separation head (221) has a separation surface (2211) facing the positioning table (12); The separation head (221) comprises a fourth avoiding surface (2213) arranged adjacent to the separation surface (2211), and the fourth avoiding surface (2213) is located on a side of the separation surface (2211) close to the center of the cylinder body (222) and is recessed away from the positioning table (12); The fourth avoiding surface (2213) is shaped to match an edge of a to-be-assembled part (72), and the separation surface (2211) is moved to a lateral side of the to-be-assembled part (72) to push a sealing ring (71) from the adapter head (211) to the to-be-assembled part (72).

2. The assembly apparatus of claim 1, wherein, The separation surface (2211) is at least partially located on a circumferential outer side of each of the adapter heads (211).

3. The assembly apparatus of claim 2, wherein, Each of the adapter heads (211) has a first guide surface (2111) on an opposite side; The separation head (221) has a sliding area (2212) protruding towards the center of the cylinder body (222), and the sliding area (2212) is slidably arranged between two adjacent first guide surfaces (2111).

4. The assembly apparatus of claim 3, wherein, The adapter assembly (2) further comprises: A resilient member (23); and A rack (24) comprising a limiting block (241) having a groove (242); The adapter portion (21) further comprises: A limiting platform (213) is protruded from one end of the rod (212) away from the adapter (211), one end of the elastic member (23) is in abutment with the rack (24), and the other end is in abutment with the limiting platform (213); The rod (212) is arranged in the groove (242), and the limiting platform (213) is abutted against one side of the limiting block away from the adapter (211).

5. The assembly apparatus of claim 1, wherein, The expansion head (11) has a first arc surface (111) and a guide inclined surface (112), the first arc surface (111) is located laterally of the positioning platform (12), and the guide inclined surface (112) is located between the table surface of the positioning platform (12) and the first arc surface (111).

6. The assembly apparatus of claim 1, wherein, The expansion head (11) has two split surfaces (113) and a first avoiding surface (114) located between the two split surfaces (113), two adjacent expansion heads (11) are split with each other through the two split surfaces (113) on opposite sides, and the first avoiding surface (114) faces the center of the positioning platform (12).

7. The assembly apparatus of claim 1, wherein, The expansion head (11) has two second avoiding surfaces (115), and the two second avoiding surfaces (115) are located on both sides of the positioning platform (12) and are recessed towards the bottom of the positioning platform (12).

8. The assembly apparatus of claim 7, wherein, The expansion head (11) also has two third avoiding surfaces (116), and the two third avoiding surfaces (116) are located on opposite sides of two adjacent expansion heads (11). When the adapter (211) moves laterally of the positioning platform (12), the third avoiding surface (116) avoids the adapter (211).

9. The assembly apparatus of claim 1, wherein, The expansion assembly (1) further comprises: A driving part (13) comprising a telescopic member (131); The expansion part (1a) has a second guide surface (117); The second guide surfaces (117) of the at least three expansion parts (1a) are uniformly arranged around the center of the positioning platform (12) and face the top of the telescopic member (131).

10. The assembly apparatus of claim 9, wherein, The top of the telescopic member (131) is a partial spherical surface (1311); The second guide surface (117) comprises a second arc surface, and the second arc surface is curved towards the spherical surface (1311).

11. The assembly apparatus of claim 1, wherein, The assembly device further comprises: A feeding assembly (3) comprising a discharge port (31); A base body (4) comprising an air channel (41) having an air inlet (411) and an air outlet (412), and a stop block (44) corresponding to the air outlet (412) and having a spacing, the positioning platform (12) being located between the air outlet (412) and the stop block (44), and the table surface of the positioning platform (12) being lower than the stop block (44); A gas supply assembly (5) comprising a gas nozzle (51) in communication with the air inlet (411) and adjacent to the discharge port (31).

12. The assembly apparatus of claim 11, wherein, The feeding assembly (3) further comprises a track (32), and the discharge port (31) is located at one end of the track (32); The base body (4) further comprises: The material stirring part (42) comprises a moving body (421) having a material groove (4211), and the moving body (421) has a first position (4212) and a second position (4213); When the moving body (421) is located at the first position (4212), the material groove (4211) is located between the air inlet (411) and the air nozzle (51), and when the moving body (421) is located at the second position (4213), the material groove (4211) is aligned with the material outlet (31).

13. The assembly apparatus of claim 12, wherein, The moving body (421) further has an air groove (4214) which is arranged in a spaced manner with the material groove (4211); When the moving body (421) is located at the first position (4212), the air nozzle (51) is communicated with the air channel (41) through the air groove (4214).

14. The assembly apparatus of claim 11, wherein, The air channel (41) has a rectangular cross section in the extending direction, and the air channel (41) comprises a horizontal section (413) and an inclined section (414), and the air outlet (412) is located at the inclined section (414), and the height of the air outlet (412) is lower than that of the horizontal section (413).

15. The assembly apparatus of claim 11, wherein, The base further comprises: The table top (43) has an operation window (431) comprising a first arc-shaped area (4311) and a second arc-shaped area (4312), the first arc-shaped area (4311) is adjacent to the air outlet (412), and the second arc-shaped area (4312) is located away from the air outlet (412); The positioning table (12) is movably arranged at the corresponding positions of the first arc-shaped area (4311) and the second arc-shaped area (4312); The switching part (21) and the separating part (22) correspond to the second arc-shaped area (4312).

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